Class SymfowarePlatform
- java.lang.Object
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- org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
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- org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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- org.eclipse.persistence.platform.database.DatabasePlatform
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- org.eclipse.persistence.platform.database.SymfowarePlatform
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- All Implemented Interfaces:
java.io.Serializable,java.lang.Cloneable,org.eclipse.persistence.internal.core.databaseaccess.CorePlatform<org.eclipse.persistence.internal.helper.ConversionManager>,org.eclipse.persistence.internal.databaseaccess.Platform
public class SymfowarePlatform extends DatabasePlatform
Symfoware Server
http://wiki.eclipse.org/EclipseLink/Development/Incubator/Extensions/SymfowarePlatform
Test results: http://wiki.eclipse.org/EclipseLink/Development/DatabasePlatform/SymfowarePlatform/TestResults
Contributed by: Fujitsu Ltd.
Contributed under bug: 288715Developed on Symfoware Server V10
Initial SRG Passes on Symfoware Server V10
Feature Testing
----------------------- DDL Generation - Succeeds
- Outer Join - Succeeds
- Subquery - Succeeds with Limitations
- Stored Procedure Calls - Succeeds
- Stored Procedure Generation - Succeeds
- Native Sequences/Identifier fields - Succeeds
- JPA Bulk Update/Delete - Succeeds with Limitations
- Batch Reading - Succeeds
- Batch Writing - Succeeds
- Pessimistic Locking - Succeeds with Limitations
- First Result/Limit - Succeeds with Limitations
- Expression Framework - Succeeds with Limitations
- Delimiters - Succeeds
- Auto Detection - Succeeds
Limitations
----------------- Reserved SQL keywords cannot be used as table, column or sequence names. Use a different name, or enclose the name in double quotes. For example: @Column(name="\"LANGUAGE\"")
- Spaces cannot be used in table, column or sequence names. (bug 304906)
- Input parameters cannot be used as first two arguments to the LOCATE function at the same time. (bug 304897)
- The first argument to the SUBSTRING function cannot be an input parameter. (bug 304897)
- Input parameters cannot be used as adjacent arguments to the CONCAT function. Concatenate the values in Java code first and pass the result to the query instead. (bug 304897)
- Input parameters cannot be used at both sides of an operand at the same time in an SQL statement (e.g. '? * ?'). Perform the operation in Java code first and pass the result to the query instead.
- Identity fields cannot be used. When primary key generation type IDENTITY is specified, a database sequence will be used instead.
- Pessimistic Locking adds 'FOR UPDATE' to the SELECT statement, and cannot be used with queries that use DISTINCT. (bug 304903)
- Pessimistic Locking cannot be used with queries that select from multiple tables. (bug 304903)
- The LockNoWait option of Pessimistic Locking cannot be used; it is ignored when specified (i.e. only 'FOR UPDATE' is added to the SELECT statement).
- Query timeout cannot be used; the timeout value is silently ignored. (bug 304905)
- Bulk update and delete operations that require multiple tables to be accessed cannot be used (e.g. bulk operation on an entity that is part of an inheritance hierarchy, UpdateAll and DeleteAll queries). (See bug 298193).
- Dropping of tables, sequences and procedures while the database connection is still open can fail due to unreleased locks. Shut down the Java process that executed the create operation before performing the drop operation, or have the create operation use an unpooled connection that is closed after use (GlassFish's deploy-time table generation function uses an unpooled connection).
- The standard deviation (STDDEV) and variance (VARIANCE) functions cannot be used. (bug 304909)
- '= NULL' and '<> NULL' cannot be used for null comparisons in the WHERE clause. Use 'IS (NOT) NULL' instead.
- A scrollable cursor policy of CONCUR_UPDATABLE mode cannot be used with queries that select from multiple tables.
- Columns and literals of different type may need casting to allow them to be compared or assigned. (bug 372178) For example: 'SELECT ... WHERE CAST(PHONE_ORDER_VARCHAR AS INTEGER) BETWEEN 0 AND 1'
- Subqueries with joins to the outer query are not supported. (see rfe 298193)
- Stored functions are not supported. (bug 342409)
- Using subquery in select list for query specification or single-row SELECT statement is not allowed. (bug 372172)
- The CascadeOnDelete doesn't work on a relation where CascadeType.Remove or CascadeType.All is specified. (bug 342413)
- A subquery cannot be specified on both sides of a comparison predicate or a quantified predicate. (bug 378313)
- A base table name to be updated cannot be identical to table name in from clause in query or subquery specification (bug 381302)
Additional Notes
----------------- When using DDL generation, indices are automatically generated for primary and unique keys.
- The MOD(x, y) function is executed as 'CASE WHEN y = 0 THEN x ELSE (x - y * TRUNC( x / y )) END' on Symfoware database, which gives the same result as the MOD function on Oracle database. Input parameters cannot be used for both its arguments at the same time. In such case, calculate the modulus in Java code first and pass the result to the query instead.
- When input parameters are used as arguments to the TRIM function, they are substituted with their values before the SQL statement is sent to the JDBC driver.
- When an input parameter is used as argument to the UPPER, LOWER or LENGTH functions, it is substituted with its value before the SQL statement is sent to the JDBC driver.
- See Also:
- Serialized Form
- Author:
- Dies Koper, Wu Jie
- Since:
- EclipseLink 2.1
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Field Summary
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Fields inherited from class org.eclipse.persistence.platform.database.DatabasePlatform
DEFAULT_VARCHAR_SIZE
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Fields inherited from class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
batchWritingMechanism, castSizeForVarcharParameter, classTypes, cursorCode, DEFAULT_MAX_BATCH_WRITING_SIZE, DEFAULT_PARAMETERIZED_MAX_BATCH_WRITING_SIZE, driverName, driverSupportsNationalCharacterVarying, fieldTypes, IS_VALID_TIMEOUT, isCastRequired, maxBatchWritingSize, partitioningCallback, pingSQL, printInnerJoinInWhereClause, printOuterJoinInWhereClause, shouldBindAllParameters, shouldBindLiterals, shouldBindPartialParameters, shouldCacheAllStatements, shouldCreateIndicesOnForeignKeys, shouldForceBindAllParameters, shouldForceFieldNamesToUpperCase, shouldIgnoreCaseOnFieldComparisons, shouldOptimizeDataConversion, shouldTrimStrings, statementCacheSize, storedProcedureTerminationToken, stringBindingSize, structConverters, supportsAutoCommit, tableCreationSuffix, transactionIsolation, typeConverters, Types_NCLOB, Types_SQLXML, useJDBCStoredProcedureSyntax, useNationalCharacterVarying, useRownumFiltering, usesBatchWriting, usesByteArrayBinding, usesJDBCBatchWriting, usesNativeBatchWriting, usesNativeSQL, usesStreamsForBinding, usesStringBinding
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Fields inherited from class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
conversionManager, dataTypesConvertedFromAClass, dataTypesConvertedToAClass, defaultNativeSequenceToTable, defaultSeqenceAtNextValue, defaultSequence, endDelimiter, platformOperators, sequences, sequencesLock, startDelimiter, supportsReturnGeneratedKeys, tableQualifier, timestampQuery
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Constructor Summary
Constructors Constructor Description SymfowarePlatform()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description protected static ExpressionOperatoraddDate()Adds to a date the specified addition number as the specified interval unit and returns the resulting date.
Builds Symfoware equivalent to addDate(unit, number).
Symfoware: ADD_DATE(date, number, unit)protected voidaddNonBindingOperator(ExpressionOperator operator)Symfoware does not support the use of parameters in certain functions.
This adds the operator and disables binding support at the same time.booleanallowBindingForSelectClause()protected voidappendCalendar(java.util.Calendar calendar, java.io.Writer writer)Write a Calendar in Symfoware specific format.
Note that Symfoware does not support nanoseconds.
Symfoware: CNV_TIMESTAMP(calendar, 'YYYY-MM-DD hh24:mm:ss')protected voidappendDate(java.sql.Date date, java.io.Writer writer)Appends a Date in Symfoware specific format.
Symfoware: DATE'YYYY-MM-DD'protected voidappendTime(java.sql.Time time, java.io.Writer writer)Appends a Time in Symfoware specific format.
Symfoware: TIME'hh:mm:ss'protected voidappendTimestamp(java.sql.Timestamp timestamp, java.io.Writer writer)Appends a TimeStamp in Symfoware specific format.
Note that Symfoware does not support the milli- and nanoseconds.
Symfoware: TIMESTAMP'YYYY-MM-DD hh:mm:ss'protected java.util.Map<java.lang.String,java.lang.Class>buildClassTypes()Return the mapping of database types to class types for the schema framework.java.lang.StringbuildCreateIndex(java.lang.String fullTableName, java.lang.String indexName, java.lang.String qualifier, boolean isUnique, java.lang.String... columnNames)Return the CREATE INDEX string for this platform.java.lang.StringbuildDropIndex(java.lang.String fullTableName, java.lang.String indexName, java.lang.String qualifier)Return the DROP INDEX string for this platform.protected java.util.Hashtable<java.lang.Class<?>,org.eclipse.persistence.internal.databaseaccess.FieldTypeDefinition>buildFieldTypes()Return the mapping of Java class types to database types for the schema framework.ValueReadQuerybuildSelectQueryForSequenceObject(java.lang.String seqName, java.lang.Integer size)Produce a DataReadQuery which updates(!)protected static ExpressionOperatorcharLength()Obtains the number of characters in the data string value expression.
Builds Symfoware equivalent to length(string_exp).
Symfoware: CHAR_LENGTH(string_exp)intcomputeMaxRowsForSQL(int firstResultIndex, int maxResults)Use the JDBC maxResults and firstResultIndex setting to compute a value to use when limiting the results of a query in SQL.java.lang.StringgetCreateTempTableSqlPrefix()Returns the beginning of the SQL string to create a temporary table.protected java.lang.StringgetCreateTempTableSqlSuffix()Returns the ending of the SQL string to create a temporary table.
Symfoware V10 requires table space name and number of concurrent users.
Maybe this will be implemented in the future, for now it invokes the super class's method.java.lang.StringgetDefaultSequenceTableName()Returns the table name used by TableSequence by default.java.lang.StringgetIndexNamePrefix(boolean isUniqueSetOnField)Used to allow platforms to define their own index prefixesjava.lang.StringgetInOutputProcedureToken()This method is used to print the output parameter token when stored procedures are called.java.lang.StringgetInputProcedureToken()Used for stored procedure creation: Prefix for INPUT parameters.intgetMaxFieldNameSize()Returns the maximum number of single byte characters that can be used in a field name on this platform, assuming DEFAULT_DSI_NAME=CODE is specified in Symfoware's operating environment file for the system (see Symfoware manual).java.lang.StringgetProcedureAsString()Symfoware does not use the AS token.java.lang.StringgetProcedureBeginString()Used for stored procedure definitions.java.lang.StringgetProcedureCallHeader()Used for stored procedure calls.java.lang.StringgetProcedureCallTail()Used for stored procedure calls.java.lang.StringgetProcedureEndString()Used for stored procedure definitions.java.lang.StringgetSelectForUpdateString()Symfoware supports "for update" for row locking.ValueReadQuerygetTimestampQuery()This method returns the query to select the timestamp from the database.protected static ExpressionOperatorgreatest()Returns the greatest of two values.
Builds Symfoware equivalent to GREATEST(x, y).
Symfoware: CASE WHEN x >= y THEN x ELSE y ENDprotected voidinitializePlatformOperators()Initialize Symfoware platform-specific operators.protected static ExpressionOperatorinstring()Evaluates the location of the "tofind" text within the string_exp text.
Builds Symfoware equivalent to Instring(string_exp, tofind).
Symfoware: POSITION(tofind In string_exp)booleanisDynamicSQLRequiredForFunctions()Symfoware does not support the use of multiple parameters in certain functions.
This allows statements to disable binding only in these cases.booleanisForUpdateCompatibleWithDistinct()Indicates whether SELECT DISTINCT ...booleanisSymfoware()Identifies this database platform as Symfoware's.protected static ExpressionOperatorleast()Returns the smallest of two values.
Builds Symfoware equivalent to LEAST(x, y).
Symfoware: CASE WHEN x <= y THEN x ELSE y ENDprotected static ExpressionOperatorleftTrim()Returns the string left trimmed for white space.
Builds Symfoware equivalent to LTRIM(string_exp).
Symfoware: TRIM(LEADING FROM string_exp)protected static ExpressionOperatorleftTrim2()Returns the string left trimmed for white space.
Builds Symfoware equivalent to LTRIM(string_exp, character).
Symfoware: TRIM(LEADING character FROM string_exp)protected static ExpressionOperatorlength()Obtains the number of characters in the data string value expression.
Builds Symfoware equivalent to length(string_exp).
Symfoware: CHAR_LENGTH(string_exp)protected static ExpressionOperatorlocate()Evaluates the location of the "tofind" text within the string_exp text.
Builds Symfoware equivalent to locate(string_exp, tofind).
Symfoware: POSITION(tofind IN string_exp)protected static ExpressionOperatorlocate2()Evaluates the location of the "tofind" text within the "string_exp" text, starting from the given start position.
Builds Symfoware equivalent to locate(string_exp, tofind, startpos).
Symfoware: LOCATE(tofind IN string_exp, startpos)protected static ExpressionOperatorlogOperator()Returns the log10 operator.
Builds Symfoware equivalent to LOG(x).
Symfoware: (LN(x)/LN(10))longminimumTimeIncrement()INTERNAL: Returns the minimum time increment supported by the platform.protected static ExpressionOperatormod()Returns the remainder of a division.
Builds Symfoware equivalent to Oracle's MOD(x, y).
Note that it returns x when y is 0, and the sign of the remainder is taken from x.protected static ExpressionOperatormonthsBetween()Returns the decimal number of months between the two dates.
Builds Symfoware equivalent to monthsBetween(Date, Date).
Symfoware: SPAN_DATE(Date, Date, 'MONTH')protected static ExpressionOperatornvl()Substitute a value when a null value is encountered.
Builds Symfoware equivalent to NVL(string, replace_with).
Symfoware: COALESCE(string, replace_with)voidprintSQLSelectStatement(org.eclipse.persistence.internal.databaseaccess.DatabaseCall call, org.eclipse.persistence.internal.expressions.ExpressionSQLPrinter printer, org.eclipse.persistence.internal.expressions.SQLSelectStatement statement)Print the pagination SQL using Symfoware syntax " WITH OPTION LIMIT ( <max>)".booleanrequiresProcedureBrackets()Used for stored procedure creation: Symfoware needs brackets around arguments declaration even if no arguments exist, and so returns true.booleanrequiresUniqueConstraintCreationOnTableCreate()Used for table creation.voidretrieveFirstPrimaryKeyOrOne(ReportQuery subselect)INTERNAL: Used by Exists queries because they just need to select a single row.protected static ExpressionOperatorrightTrim()Returns the string right trimmed for white space.
Builds Symfoware equivalent to RTRIM(character).
Symfoware: TRIM(TRAILING FROM string_exp)protected static ExpressionOperatorrightTrim2()Returns the string right trimmed for white space.
Builds Symfoware equivalent to RTRIM(string_exp, character).
Symfoware: TRIM(TRAILING character FROM string_exp)protected static ExpressionOperatorroundDate()Returns the date rounded to the year, month or day.
Builds Symfoware equivalent to ROUNDDATE(Date, rounded).
Symfoware: ROUND_DATE(Date, rounded)booleanshouldAlwaysUseTempStorageForModifyAll()Symfoware does not support the default syntax generated for update-all and delete-all queries as they can include the same table in the FROM clause of the main and the sub-queries.booleanshouldBindLiterals()Allows platform to choose whether to bind literals in SQL statements or not.
Literal binding is enabled for Symfoware in general.booleanshouldCreateIndicesForPrimaryKeys()Used for table creation.booleanshouldCreateIndicesOnUniqueKeys()Used for table creation.booleanshouldPrintInputTokenAtStart()Used for stored procedure creation: Some platforms want to print prefix for INPUT arguments BEFORE NAME.booleanshouldPrintOutputTokenAtStart()This is required in the construction of the stored procedures with output parametersbooleanshouldPrintOutputTokenBeforeType()This is required in the construction of the stored procedures with output parametersbooleanshouldPrintStoredProcedureArgumentNameInCall()Symfoware stored procedure calls do not require the argument name be printed in the call string.
E.g. call MyStoredProc(?)booleanshouldPrintStoredProcedureVariablesAfterBeginString()Used for stored procedure creation: Symfoware declares variables AFTER the procedure body's BEGIN string.protected static ExpressionOperatorsingleArgumentSubstring()Gets the substring of a string starting from the specified start position.
Builds Symfoware equivalent to SUBSTRING(string_exp, startpos).
Symfoware: SUBSTRING(string_exp FROM startpos)protected static ExpressionOperatorsubstring()Gets the substring of source bounded by start location to end location.booleansupportsANSIInnerJoinSyntax()Indicates whether the ANSI syntax for inner joins (e.g.booleansupportsForeignKeyConstraints()Symfoware does not support foreign key constraint syntax, so returns false.booleansupportsGlobalTempTables()Indicates whether the platform supports global temporary tables.booleansupportsIndividualTableLocking()Indicates whether locking clause could be selectively applied only to some tables in a ReadQuery.
Symfoware platform currently only supports FOR UPDATE locking, which cannot be applied to queries that select from multiple tables.booleansupportsLockingQueriesWithMultipleTables()Indicates whether locking clause could be applied to the query that has more than one table.
Symfoware platform currently only supports FOR UPDATE locking, which cannot be applied to queries that select from multiple tables.booleansupportsSequenceObjects()Indicates whether the platform supports sequence objects.
Symfoware does through global sequence objects.booleansupportsStoredFunctions()Indicates whether the platform supports stored functions.
Although Symfoware supports some stored functions as function routines, their functionality is incompatible with the one EclipseLink provides.booleansupportsUniqueKeyConstraints()Symfoware supports unique key constraints, so returns true.
Do note that unique constraints cannot be added/removed using "ALTER TABLE ADD/DROP CONSTRAINT" syntax.protected static ExpressionOperatortoDate()Converts the character value expression of the conversion source to the DATE type in accordance.
Builds Symfoware equivalent to toDate(Date, format).
Symfoware: CNV_DATE(Date, 'YYYY-MM-DD')protected static ExpressionOperatortoNumber()Returns the number converted from the string.
Builds Symfoware equivalent to ToNumber(string_exp).
Symfoware: CAST(string_exp AS SMALLINT)protected static ExpressionOperatortruncateDate()Truncates a date by using the truncating unit.
Builds Symfoware equivalent to truncateDate(date, unit).
Symfoware: TRUNC_DATE(date, unit)booleanwasFailureCommunicationBased(java.sql.SQLException exception, java.sql.Connection connection, org.eclipse.persistence.internal.sessions.AbstractSession sessionForProfile)Fail-over is not implemented on platform.-
Methods inherited from class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
addBatch, addStructConverter, allowsSizeInProcedureArguments, appendBoolean, appendByteArray, appendLiteralToCall, appendLiteralToCallWithBinding, appendNumber, appendParameter, appendParameterInternal, appendString, autoCommit, beginTransaction, buildBatchCriteria, buildBatchCriteriaForComplexId, buildCallWithReturning, buildCreateIndex, buildDropIndex, buildProcedureCallString, buildSequenceObjectAlterIncrementWriter, buildSequenceObjectCreationWriter, buildSequenceObjectDeletionWriter, canBatchWriteWithOptimisticLocking, canBuildCallWithReturning, checkTableExists, commitTransaction, convertToDatabaseType, copyInto, createArray, createArray, createPlatformDefaultSequence, createStruct, createStruct, createStruct, dontBindUpdateAllQueryUsingTempTables, executeBatch, executeStoredProcedure, freeTemporaryObject, getAssignmentString, getBatchBeginString, getBatchDelimiterString, getBatchEndString, getBatchRowCountAssignString, getBatchRowCountDeclareString, getBatchRowCountReturnString, getBatchWritingMechanism, getCastSizeForVarcharParameter, getClassTypes, getConnection, getConnectionUserName, getConstraintDeletionString, getCreateDatabaseSchemaString, getCreateTempTableSqlBodyForTable, getCreateViewString, getCreationInOutputProcedureToken, getCreationOutputProcedureToken, getCursorCode, getCustomModifyValueForCall, getDriverSupportsNVarChar, getDropCascadeString, getDropDatabaseSchemaString, getFieldTypeDefinition, getFieldTypes, getFunctionCallHeader, getIdentifierQuoteCharacter, getJDBCOuterJoinString, getJDBCType, getJDBCType, getJDBCTypeForSetNull, getJdbcTypeName, getMaxBatchWritingSize, getMaxForeignKeyNameSize, getMaxIndexNameSize, getMaxUniqueKeyNameSize, getNoWaitString, getObjectFromResultSet, getOutputProcedureToken, getParameterValueFromDatabaseCall, getParameterValueFromDatabaseCall, getPartitioningCallback, getPingSQL, getProcedureArgument, getProcedureArgument, getProcedureArgumentString, getProcedureOptionList, getQualifiedName, getQualifiedSequenceTableName, getRefValue, getRefValue, getSelectForUpdateNoWaitString, getSelectForUpdateOfString, getSelectForUpdateWaitString, getSequenceCounterFieldName, getSequenceNameFieldName, getSequencePreallocationSize, getSequenceTableName, getStatementCacheSize, getStoredProcedureParameterPrefix, getStoredProcedureTerminationToken, getStringBindingSize, getStructConverters, getTableCreationSuffix, getTableExistsQuery, getTempTableForTable, getTransactionIsolation, getTypeConverters, getUniqueConstraintDeletionString, getUseNationalCharacterVaryingTypeForString, getVPDClearIdentifierQuery, getVPDCreationFunctionString, getVPDCreationPolicyString, getVPDDeletionString, getVPDSetIdentifierQuery, hasPartitioningCallback, initialize, initializeConnectionData, isAlterSequenceObjectSupported, isCastRequired, isInformixOuterJoin, isJDBCExecuteCompliant, isLobCompatibleWithDistinct, isLockTimeoutException, isNullAllowedInSelectClause, isOutputAllowWithResultSet, isRowCountOutputParameterRequired, isXDBDocument, maximumNumericValues, minimumNumericValues, prepareBatchStatement, printFieldIdentityClause, printFieldNotNullClause, printFieldNullClause, printFieldTypeSize, printFieldTypeSize, printFieldUnique, printFieldUnique, printStoredFunctionReturnKeyWord, printValuelist, printValuelist, registerOutputParameter, registerOutputParameter, registerOutputParameter, registerOutputParameter, requiresNamedPrimaryKeyConstraints, requiresProcedureCallBrackets, requiresProcedureCallOuputToken, requiresTableInIndexDropDDL, requiresTypeNameToRegisterOutputParameter, rollbackTransaction, setBatchWritingMechanism, setCastSizeForVarcharParameter, setClassTypes, setCursorCode, setDriverName, setDriverSupportsNVarChar, setFieldTypes, setIsCastRequired, setMaxBatchWritingSize, setNullFromDatabaseField, setNullFromDatabaseField, setParameterValueInDatabaseCall, setParameterValueInDatabaseCall, setPartitioningCallback, setPingSQL, setPrintInnerJoinInWhereClause, setPrintOuterJoinInWhereClause, setSequenceCounterFieldName, setSequenceNameFieldName, setSequenceTableName, setShouldBindAllParameters, setShouldBindLiterals, setShouldBindPartialParameters, setShouldCacheAllStatements, setShouldCreateIndicesOnForeignKeys, setShouldForceBindAllParameters, setShouldForceFieldNamesToUpperCase, setShouldIgnoreCaseOnFieldComparisons, setShouldOptimizeDataConversion, setShouldTrimStrings, setShouldUseRownumFiltering, setStatementCacheSize, setStoredProcedureTerminationToken, setStringBindingSize, setSupportsAutoCommit, setTableCreationSuffix, setTransactionIsolation, setUseJDBCStoredProcedureSyntax, setUseNationalCharacterVaryingTypeForString, setUsesBatchWriting, setUsesByteArrayBinding, setUsesJDBCBatchWriting, setUsesNativeBatchWriting, setUsesNativeSQL, setUsesStreamsForBinding, setUsesStringBinding, shouldBindAllParameters, shouldBindPartialParameters, shouldCacheAllStatements, shouldCreateIndicesOnForeignKeys, shouldForceBindAllParameters, shouldForceFieldNamesToUpperCase, shouldIgnoreCaseOnFieldComparisons, shouldIgnoreException, shouldOptimizeDataConversion, shouldPrintAliasForUpdate, shouldPrintConstraintNameAfter, shouldPrintFieldIdentityClause, shouldPrintForUpdateClause, shouldPrintInnerJoinInWhereClause, shouldPrintInOutputTokenBeforeType, shouldPrintLockingClauseAfterWhereClause, shouldPrintOuterJoinInWhereClause, shouldTempTableSpecifyPrimaryKeys, shouldTrimStrings, shouldUseCustomModifyForCall, shouldUseGetSetNString, shouldUseJDBCOuterJoinSyntax, shouldUseRownumFiltering, supportsAutoCommit, supportsAutoConversionToNumericForArithmeticOperations, supportsConnectionUserName, supportsCountDistinctWithMultipleFields, supportsDeleteOnCascade, supportsIndexes, supportsLocalTempTables, supportsNestingOuterJoins, supportsOrderByParameters, supportsOuterJoinsWithBrackets, supportsPrimaryKeyConstraint, supportsTempTables, supportsUniqueColumns, supportsVPD, supportsWaitForUpdate, usesBatchWriting, usesByteArrayBinding, usesJDBCBatchWriting, usesNativeBatchWriting, usesNativeSQL, usesSequenceTable, usesStreamsForBinding, usesStringBinding, writeAddColumnClause, writeAutoAssignmentSetClause, writeAutoJoinWhereClause, writeCleanUpTempTableSql, writeCreateTempTableSql, writeDeleteFromTargetTableUsingTempTableSql, writeFields, writeFieldsAutoClause, writeFieldsList, writeInsertIntoTableSql, writeJoinWhereClause, writeLOB, writeParameterMarker, writeTableCreationSuffix, writeUpdateOriginalFromTempTableSql
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Methods inherited from class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
addOperator, addSequence, addSequence, buildNativeCall, buildSelectQueryForIdentity, buildSelectQueryForIdentity, buildSelectQueryForSequenceObject, clone, convertObject, convertObject, createConnectionCustomizer, createExpressionFor, getConversionManager, getDataTypesConvertedFrom, getDataTypesConvertedTo, getDefaultNativeSequenceToTable, getDefaultSeqenceAtNextValue, getDefaultSequence, getDefaultSequenceToWrite, getDriverVersion, getEndDelimiter, getINClauseLimit, getOperator, getPlatformOperators, getSelectSequenceQuery, getSequence, getSequences, getSequencesToWrite, getStartDelimiter, getTableQualifier, getTimestampFromServer, getUpdateSequenceQuery, hasDefaultSequence, initializeDefaultQueries, isAccess, isAttunity, isCloudscape, isDB2, isDB2Z, isDBase, isDerby, isFirebird, isH2, isHANA, isHSQL, isInformix, isMaxDB, isMySQL, isODBC, isOracle, isOracle23, isOracle9, isPervasive, isPointBase, isPostgreSQL, isSQLAnywhere, isSQLServer, isSybase, isTimesTen, isTimesTen7, removeAllSequences, removeSequence, sequencesAfterCloneCleanup, setConversionManager, setDefaultNativeSequenceToTable, setDefaultSeqenceAtNextValue, setDefaultSequence, setEndDelimiter, setSelectSequenceNumberQuery, setSequencePreallocationSize, setSequences, setStartDelimiter, setSupportsReturnGeneratedKeys, setTableQualifier, setTimestampQuery, setUpdateSequenceQuery, shouldNativeSequenceUseTransaction, shouldPrepare, shouldSelectDistinctIncludeOrderBy, shouldSelectIncludeOrderBy, supportsIdentity, supportsNativeSequenceNumbers, supportsReturnGeneratedKeys, toString, usesPlatformDefaultSequence
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Method Detail
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appendDate
protected void appendDate(java.sql.Date date, java.io.Writer writer) throws java.io.IOExceptionAppends a Date in Symfoware specific format.
Symfoware: DATE'YYYY-MM-DD'- Overrides:
appendDatein classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Throws:
java.io.IOException
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appendTime
protected void appendTime(java.sql.Time time, java.io.Writer writer) throws java.io.IOExceptionAppends a Time in Symfoware specific format.
Symfoware: TIME'hh:mm:ss'- Overrides:
appendTimein classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Throws:
java.io.IOException
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appendTimestamp
protected void appendTimestamp(java.sql.Timestamp timestamp, java.io.Writer writer) throws java.io.IOExceptionAppends a TimeStamp in Symfoware specific format.
Note that Symfoware does not support the milli- and nanoseconds.
Symfoware: TIMESTAMP'YYYY-MM-DD hh:mm:ss'- Overrides:
appendTimestampin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Throws:
java.io.IOException
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appendCalendar
protected void appendCalendar(java.util.Calendar calendar, java.io.Writer writer) throws java.io.IOExceptionWrite a Calendar in Symfoware specific format.
Note that Symfoware does not support nanoseconds.
Symfoware: CNV_TIMESTAMP(calendar, 'YYYY-MM-DD hh24:mm:ss')- Overrides:
appendCalendarin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Throws:
java.io.IOException
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buildFieldTypes
protected java.util.Hashtable<java.lang.Class<?>,org.eclipse.persistence.internal.databaseaccess.FieldTypeDefinition> buildFieldTypes()
Return the mapping of Java class types to database types for the schema framework.- Overrides:
buildFieldTypesin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Returns:
- hashtable of Java types to FieldTypeDefinition instances containing Symfoware SQL types.
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buildClassTypes
protected java.util.Map<java.lang.String,java.lang.Class> buildClassTypes()
Return the mapping of database types to class types for the schema framework.- Overrides:
buildClassTypesin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Returns:
- the mappings.
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initializePlatformOperators
protected void initializePlatformOperators()
Initialize Symfoware platform-specific operators.- Overrides:
initializePlatformOperatorsin classorg.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
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addNonBindingOperator
protected void addNonBindingOperator(ExpressionOperator operator)
Symfoware does not support the use of parameters in certain functions.
This adds the operator and disables binding support at the same time.- See Also:
DatasourcePlatform.addOperator(ExpressionOperator),ExpressionOperator#setIsBindingSupported(boolean)
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isDynamicSQLRequiredForFunctions
public boolean isDynamicSQLRequiredForFunctions()
Symfoware does not support the use of multiple parameters in certain functions.
This allows statements to disable binding only in these cases.- Overrides:
isDynamicSQLRequiredForFunctionsin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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allowBindingForSelectClause
public boolean allowBindingForSelectClause()
- Overrides:
allowBindingForSelectClausein classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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isForUpdateCompatibleWithDistinct
public boolean isForUpdateCompatibleWithDistinct()
Indicates whether SELECT DISTINCT ... FOR UPDATE is allowed by the platform. (Symfoware doesn't allow this).- Overrides:
isForUpdateCompatibleWithDistinctin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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isSymfoware
public boolean isSymfoware()
Identifies this database platform as Symfoware's.- Specified by:
isSymfowarein interfaceorg.eclipse.persistence.internal.databaseaccess.Platform- Overrides:
isSymfowarein classorg.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
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length
protected static ExpressionOperator length()
Obtains the number of characters in the data string value expression.
Builds Symfoware equivalent to length(string_exp).
Symfoware: CHAR_LENGTH(string_exp)- Returns:
- the defined expression operator.
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charLength
protected static ExpressionOperator charLength()
Obtains the number of characters in the data string value expression.
Builds Symfoware equivalent to length(string_exp).
Symfoware: CHAR_LENGTH(string_exp)- Returns:
- the defined expression operator.
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locate
protected static ExpressionOperator locate()
Evaluates the location of the "tofind" text within the string_exp text.
Builds Symfoware equivalent to locate(string_exp, tofind).
Symfoware: POSITION(tofind IN string_exp)- Returns:
- the defined expression operator.
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locate2
protected static ExpressionOperator locate2()
Evaluates the location of the "tofind" text within the "string_exp" text, starting from the given start position.
Builds Symfoware equivalent to locate(string_exp, tofind, startpos).
Symfoware: LOCATE(tofind IN string_exp, startpos)- Returns:
- the defined expression operator.
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logOperator
protected static ExpressionOperator logOperator()
Returns the log10 operator.
Builds Symfoware equivalent to LOG(x).
Symfoware: (LN(x)/LN(10))- Returns:
- the defined expression operator.
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leftTrim
protected static ExpressionOperator leftTrim()
Returns the string left trimmed for white space.
Builds Symfoware equivalent to LTRIM(string_exp).
Symfoware: TRIM(LEADING FROM string_exp)- Returns:
- the defined expression operator.
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leftTrim2
protected static ExpressionOperator leftTrim2()
Returns the string left trimmed for white space.
Builds Symfoware equivalent to LTRIM(string_exp, character).
Symfoware: TRIM(LEADING character FROM string_exp)- Returns:
- the defined expression operator.
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mod
protected static ExpressionOperator mod()
Returns the remainder of a division.
Builds Symfoware equivalent to Oracle's MOD(x, y).
Note that it returns x when y is 0, and the sign of the remainder is taken from x. Symfoware: CASE WHEN y = 0 THEN x ELSE (x - y * TRUNC( x / y )) END- Returns:
- the defined expression operator.
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rightTrim
protected static ExpressionOperator rightTrim()
Returns the string right trimmed for white space.
Builds Symfoware equivalent to RTRIM(character).
Symfoware: TRIM(TRAILING FROM string_exp)- Returns:
- the defined expression operator.
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rightTrim2
protected static ExpressionOperator rightTrim2()
Returns the string right trimmed for white space.
Builds Symfoware equivalent to RTRIM(string_exp, character).
Symfoware: TRIM(TRAILING character FROM string_exp)- Returns:
- the defined expression operator.
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substring
protected static ExpressionOperator substring()
Gets the substring of source bounded by start location to end location.
Builds Symfoware equivalent to SUBSTRING(string_exp, startpos, length).
Symfoware: SUBSTRING(string_exp FROM startpos FOR length)- Returns:
- the defined expression operator.
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singleArgumentSubstring
protected static ExpressionOperator singleArgumentSubstring()
Gets the substring of a string starting from the specified start position.
Builds Symfoware equivalent to SUBSTRING(string_exp, startpos).
Symfoware: SUBSTRING(string_exp FROM startpos)- Returns:
- the defined expression operator.
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toNumber
protected static ExpressionOperator toNumber()
Returns the number converted from the string.
Builds Symfoware equivalent to ToNumber(string_exp).
Symfoware: CAST(string_exp AS SMALLINT)- Returns:
- the defined expression operator.
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instring
protected static ExpressionOperator instring()
Evaluates the location of the "tofind" text within the string_exp text.
Builds Symfoware equivalent to Instring(string_exp, tofind).
Symfoware: POSITION(tofind In string_exp)- Returns:
- the defined expression operator.
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monthsBetween
protected static ExpressionOperator monthsBetween()
Returns the decimal number of months between the two dates.
Builds Symfoware equivalent to monthsBetween(Date, Date).
Symfoware: SPAN_DATE(Date, Date, 'MONTH')- Returns:
- the defined expression operator.
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roundDate
protected static ExpressionOperator roundDate()
Returns the date rounded to the year, month or day.
Builds Symfoware equivalent to ROUNDDATE(Date, rounded).
Symfoware: ROUND_DATE(Date, rounded)- Returns:
- the defined expression operator.
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toDate
protected static ExpressionOperator toDate()
Converts the character value expression of the conversion source to the DATE type in accordance.
Builds Symfoware equivalent to toDate(Date, format).
Symfoware: CNV_DATE(Date, 'YYYY-MM-DD')- Returns:
- the defined expression operator.
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addDate
protected static ExpressionOperator addDate()
Adds to a date the specified addition number as the specified interval unit and returns the resulting date.
Builds Symfoware equivalent to addDate(unit, number).
Symfoware: ADD_DATE(date, number, unit)- Returns:
- the defined expression operator.
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truncateDate
protected static ExpressionOperator truncateDate()
Truncates a date by using the truncating unit.
Builds Symfoware equivalent to truncateDate(date, unit).
Symfoware: TRUNC_DATE(date, unit)- Returns:
- the defined expression operator.
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nvl
protected static ExpressionOperator nvl()
Substitute a value when a null value is encountered.
Builds Symfoware equivalent to NVL(string, replace_with).
Symfoware: COALESCE(string, replace_with)- Returns:
- the defined expression operator.
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greatest
protected static ExpressionOperator greatest()
Returns the greatest of two values.
Builds Symfoware equivalent to GREATEST(x, y).
Symfoware: CASE WHEN x >= y THEN x ELSE y END- Returns:
- the defined expression operator.
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least
protected static ExpressionOperator least()
Returns the smallest of two values.
Builds Symfoware equivalent to LEAST(x, y).
Symfoware: CASE WHEN x <= y THEN x ELSE y END- Returns:
- the defined expression operator.
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computeMaxRowsForSQL
public int computeMaxRowsForSQL(int firstResultIndex, int maxResults)Use the JDBC maxResults and firstResultIndex setting to compute a value to use when limiting the results of a query in SQL. These limits tend to be used in two ways.1. MaxRows is the index of the last row to be returned (like JDBC maxResults) 2. MaxRows is the number of rows to be returned
Symfoware uses case #2 and therefore the maxResults has to be altered based on the firstResultIndex.- Overrides:
computeMaxRowsForSQLin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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buildSelectQueryForSequenceObject
public ValueReadQuery buildSelectQueryForSequenceObject(java.lang.String seqName, java.lang.Integer size)
Produce a DataReadQuery which updates(!) the sequence number in the DB and returns it.- Overrides:
buildSelectQueryForSequenceObjectin classorg.eclipse.persistence.internal.databaseaccess.DatasourcePlatform- Parameters:
seqName- known by Symfoware to be a defined sequencesize- size of sequence- Returns:
- ValueReadQuery class to perform a read of a single data value.
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buildCreateIndex
public java.lang.String buildCreateIndex(java.lang.String fullTableName, java.lang.String indexName, java.lang.String qualifier, boolean isUnique, java.lang.String... columnNames)Return the CREATE INDEX string for this platform.- Overrides:
buildCreateIndexin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Parameters:
fullTableName- qualified name of the table the index is to be created onindexName- name of the indexqualifier- qualifier to construct qualified name of index if neededisUnique- Indicates whether uniqe index is createdcolumnNames- one or more columns the index is created for
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buildDropIndex
public java.lang.String buildDropIndex(java.lang.String fullTableName, java.lang.String indexName, java.lang.String qualifier)Return the DROP INDEX string for this platform.- Overrides:
buildDropIndexin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Parameters:
fullTableName- qualified name of the table the index is to be created onindexName- name of the indexqualifier- qualifier to construct qualified name of index if needed
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getCreateTempTableSqlPrefix
public java.lang.String getCreateTempTableSqlPrefix()
Returns the beginning of the SQL string to create a temporary table.- Overrides:
getCreateTempTableSqlPrefixin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- See Also:
shouldAlwaysUseTempStorageForModifyAll()
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getCreateTempTableSqlSuffix
protected java.lang.String getCreateTempTableSqlSuffix()
Returns the ending of the SQL string to create a temporary table.
Symfoware V10 requires table space name and number of concurrent users.
Maybe this will be implemented in the future, for now it invokes the super class's method.- Overrides:
getCreateTempTableSqlSuffixin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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getDefaultSequenceTableName
public java.lang.String getDefaultSequenceTableName()
Returns the table name used by TableSequence by default. Symfoware does not allow reserved keyword 'SEQUENCE' as table name, so returns "SEQUENCE" (with double-quotes) instead.- Overrides:
getDefaultSequenceTableNamein classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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getIndexNamePrefix
public java.lang.String getIndexNamePrefix(boolean isUniqueSetOnField)
Used to allow platforms to define their own index prefixes- Overrides:
getIndexNamePrefixin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Parameters:
isUniqueSetOnField-- Returns:
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getInOutputProcedureToken
public java.lang.String getInOutputProcedureToken()
This method is used to print the output parameter token when stored procedures are called.- Overrides:
getInOutputProcedureTokenin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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getInputProcedureToken
public java.lang.String getInputProcedureToken()
Used for stored procedure creation: Prefix for INPUT parameters.- Overrides:
getInputProcedureTokenin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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getMaxFieldNameSize
public int getMaxFieldNameSize()
Returns the maximum number of single byte characters that can be used in a field name on this platform, assuming DEFAULT_DSI_NAME=CODE is specified in Symfoware's operating environment file for the system (see Symfoware manual).- Overrides:
getMaxFieldNameSizein classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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getProcedureAsString
public java.lang.String getProcedureAsString()
Symfoware does not use the AS token.- Overrides:
getProcedureAsStringin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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getProcedureCallHeader
public java.lang.String getProcedureCallHeader()
Used for stored procedure calls.- Overrides:
getProcedureCallHeaderin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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getProcedureCallTail
public java.lang.String getProcedureCallTail()
Used for stored procedure calls.- Overrides:
getProcedureCallTailin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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getProcedureBeginString
public java.lang.String getProcedureBeginString()
Used for stored procedure definitions.- Overrides:
getProcedureBeginStringin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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getProcedureEndString
public java.lang.String getProcedureEndString()
Used for stored procedure definitions.- Overrides:
getProcedureEndStringin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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getSelectForUpdateString
public java.lang.String getSelectForUpdateString()
Symfoware supports "for update" for row locking.- Overrides:
getSelectForUpdateStringin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Returns:
- the string of "for update".
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getTimestampQuery
public ValueReadQuery getTimestampQuery()
This method returns the query to select the timestamp from the database.- Specified by:
getTimestampQueryin interfaceorg.eclipse.persistence.internal.databaseaccess.Platform- Overrides:
getTimestampQueryin classorg.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
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minimumTimeIncrement
public long minimumTimeIncrement()
INTERNAL: Returns the minimum time increment supported by the platform.- Overrides:
minimumTimeIncrementin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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printSQLSelectStatement
public void printSQLSelectStatement(org.eclipse.persistence.internal.databaseaccess.DatabaseCall call, org.eclipse.persistence.internal.expressions.ExpressionSQLPrinter printer, org.eclipse.persistence.internal.expressions.SQLSelectStatement statement)Print the pagination SQL using Symfoware syntax " WITH OPTION LIMIT ( <max>)". There is no equivalent to 'OFFSET'.
Even though most performance benefit comes from including the offset in the SQL statement, for this platform the benefit of including LIMIT is that it allows pagination with result sets with scrollable cursors too (which the Symfoware JDBC driver's setMaxRows method does not support).- Overrides:
printSQLSelectStatementin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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requiresProcedureBrackets
public boolean requiresProcedureBrackets()
Used for stored procedure creation: Symfoware needs brackets around arguments declaration even if no arguments exist, and so returns true.- Overrides:
requiresProcedureBracketsin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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requiresUniqueConstraintCreationOnTableCreate
public boolean requiresUniqueConstraintCreationOnTableCreate()
Used for table creation. Symfoware does not support the ALTER TABLE syntax to add/drop unique constraints, but it does allow declaration of (single and multi-column) unique constraints as part of the CREATE TABLE statement.- Overrides:
requiresUniqueConstraintCreationOnTableCreatein classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Returns:
- whether unique constraints should be declared as part of the CREATE TABLE statement instead of in separate ALTER TABLE ADD/DROP statements.
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retrieveFirstPrimaryKeyOrOne
public void retrieveFirstPrimaryKeyOrOne(ReportQuery subselect)
INTERNAL: Used by Exists queries because they just need to select a single row. In most databases, we will select one of the primary key fields. On Syfoware, there are situations where the key cannot be used. See: https://bugs.eclipse.org/bugs/show_bug.cgi?id=303396- Overrides:
retrieveFirstPrimaryKeyOrOnein classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Parameters:
subselect-- See Also:
SymfowarePlatform
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shouldAlwaysUseTempStorageForModifyAll
public boolean shouldAlwaysUseTempStorageForModifyAll()
Symfoware does not support the default syntax generated for update-all and delete-all queries as they can include the same table in the FROM clause of the main and the sub-queries. However, the alternative of using global temporary tables leads to table locking issues, so returns false to prevent the use of global temporary tables.- Overrides:
shouldAlwaysUseTempStorageForModifyAllin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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shouldBindLiterals
public boolean shouldBindLiterals()
Allows platform to choose whether to bind literals in SQL statements or not.
Literal binding is enabled for Symfoware in general. As a number of functions and operators have restrictions on the use of input parameters, it is disabled for those.- Overrides:
shouldBindLiteralsin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- See Also:
isDynamicSQLRequiredForFunctions()
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shouldCreateIndicesForPrimaryKeys
public boolean shouldCreateIndicesForPrimaryKeys()
Used for table creation. Symfoware needs an index to be created explicitly for columns with a primary key constraint.- Overrides:
shouldCreateIndicesForPrimaryKeysin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Returns:
- true: indices should be created during table generation
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shouldCreateIndicesOnUniqueKeys
public boolean shouldCreateIndicesOnUniqueKeys()
Used for table creation. Symfoware needs an index to be created explicitly for columns with a unique constraint.- Overrides:
shouldCreateIndicesOnUniqueKeysin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Returns:
- true: indices should be created during table generation
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shouldPrintInputTokenAtStart
public boolean shouldPrintInputTokenAtStart()
Used for stored procedure creation: Some platforms want to print prefix for INPUT arguments BEFORE NAME. If wanted, override and return true.- Overrides:
shouldPrintInputTokenAtStartin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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shouldPrintOutputTokenBeforeType
public boolean shouldPrintOutputTokenBeforeType()
This is required in the construction of the stored procedures with output parameters- Overrides:
shouldPrintOutputTokenBeforeTypein classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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shouldPrintOutputTokenAtStart
public boolean shouldPrintOutputTokenAtStart()
This is required in the construction of the stored procedures with output parameters- Overrides:
shouldPrintOutputTokenAtStartin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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shouldPrintStoredProcedureArgumentNameInCall
public boolean shouldPrintStoredProcedureArgumentNameInCall()
Symfoware stored procedure calls do not require the argument name be printed in the call string.
E.g. call MyStoredProc(?) instead of call MyStoredProc(myvariable = ?)- Overrides:
shouldPrintStoredProcedureArgumentNameInCallin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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shouldPrintStoredProcedureVariablesAfterBeginString
public boolean shouldPrintStoredProcedureVariablesAfterBeginString()
Used for stored procedure creation: Symfoware declares variables AFTER the procedure body's BEGIN string.- Overrides:
shouldPrintStoredProcedureVariablesAfterBeginStringin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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supportsANSIInnerJoinSyntax
public boolean supportsANSIInnerJoinSyntax()
Indicates whether the ANSI syntax for inner joins (e.g. SELECT FROM t1 JOIN t2 ON t1.pk = t2.fk) is supported by this platform. Symfoware does not.- Overrides:
supportsANSIInnerJoinSyntaxin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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supportsForeignKeyConstraints
public boolean supportsForeignKeyConstraints()
Symfoware does not support foreign key constraint syntax, so returns false.- Overrides:
supportsForeignKeyConstraintsin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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supportsGlobalTempTables
public boolean supportsGlobalTempTables()
Indicates whether the platform supports global temporary tables. Although Symfoware does, it leads to table locking issues when used from EclipseLink.- Overrides:
supportsGlobalTempTablesin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- See Also:
shouldAlwaysUseTempStorageForModifyAll()
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supportsIndividualTableLocking
public boolean supportsIndividualTableLocking()
Indicates whether locking clause could be selectively applied only to some tables in a ReadQuery.
Symfoware platform currently only supports FOR UPDATE locking, which cannot be applied to queries that select from multiple tables. Use of other locking strategies (LOCK_MODE) are yet to be explored.- Overrides:
supportsIndividualTableLockingin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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supportsLockingQueriesWithMultipleTables
public boolean supportsLockingQueriesWithMultipleTables()
Indicates whether locking clause could be applied to the query that has more than one table.
Symfoware platform currently only supports FOR UPDATE locking, which cannot be applied to queries that select from multiple tables. Use of other locking strategies (LOCK_MODE) are yet to be explored.- Overrides:
supportsLockingQueriesWithMultipleTablesin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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supportsSequenceObjects
public boolean supportsSequenceObjects()
Indicates whether the platform supports sequence objects.
Symfoware does through global sequence objects.- Overrides:
supportsSequenceObjectsin classorg.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
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supportsStoredFunctions
public boolean supportsStoredFunctions()
Indicates whether the platform supports stored functions.
Although Symfoware supports some stored functions as function routines, their functionality is incompatible with the one EclipseLink provides. So, return false;- Overrides:
supportsStoredFunctionsin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform
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supportsUniqueKeyConstraints
public boolean supportsUniqueKeyConstraints()
Symfoware supports unique key constraints, so returns true.
Do note that unique constraints cannot be added/removed using "ALTER TABLE ADD/DROP CONSTRAINT" syntax.- Overrides:
supportsUniqueKeyConstraintsin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- See Also:
requiresUniqueConstraintCreationOnTableCreate()
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wasFailureCommunicationBased
public boolean wasFailureCommunicationBased(java.sql.SQLException exception, java.sql.Connection connection, org.eclipse.persistence.internal.sessions.AbstractSession sessionForProfile)Fail-over is not implemented on platform. This method returns false no matter what caused the failure.- Overrides:
wasFailureCommunicationBasedin classorg.eclipse.persistence.internal.databaseaccess.DatabasePlatform- Returns:
- false
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