Class LogicalExpression
- java.lang.Object
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- org.eclipse.persistence.jpa.jpql.parser.AbstractExpression
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- org.eclipse.persistence.jpa.jpql.parser.CompoundExpression
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- org.eclipse.persistence.jpa.jpql.parser.LogicalExpression
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- All Implemented Interfaces:
Expression
- Direct Known Subclasses:
AndExpression,OrExpression
public abstract class LogicalExpression extends CompoundExpression
This expression represents a logical expression, which means the first and second expressions are aggregated with either AND or OR.- Version:
- 2.5
- Author:
- Pascal Filion
- Since:
- 2.3
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Field Summary
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Fields inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractExpression
COMMA, DOT, DOUBLE_QUOTE, LEFT_CURLY_BRACKET, LEFT_PARENTHESIS, NOT_DEFINED, RIGHT_CURLY_BRACKET, RIGHT_PARENTHESIS, SINGLE_QUOTE, SPACE, UNDERSCORE
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Fields inherited from interface org.eclipse.persistence.jpa.jpql.parser.Expression
ABS, ALL, AND, ANY, AS, AS_OF, ASC, AVG, BETWEEN, BIT_LENGTH, BOTH, CASE, CAST, CHAR_LENGTH, CHARACTER_LENGTH, CLASS, COALESCE, COLUMN, CONCAT, CONNECT_BY, COUNT, CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP, DELETE, DELETE_FROM, DESC, DIFFERENT, DISTINCT, DIVISION, ELSE, EMPTY, END, ENTRY, EQUAL, ESCAPE, EXCEPT, EXISTS, EXTRACT, FALSE, FETCH, FIRST, FROM, FUNC, FUNCTION, GREATER_THAN, GREATER_THAN_OR_EQUAL, GROUP_BY, HAVING, IN, INDEX, INNER, INNER_JOIN, INNER_JOIN_FETCH, INTERSECT, IS, IS_EMPTY, IS_NOT_EMPTY, IS_NOT_NULL, IS_NULL, JOIN, JOIN_FETCH, KEY, LAST, LEADING, LEFT, LEFT_JOIN, LEFT_JOIN_FETCH, LEFT_OUTER_JOIN, LEFT_OUTER_JOIN_FETCH, LENGTH, LIKE, LOCATE, LOWER, LOWER_THAN, LOWER_THAN_OR_EQUAL, MAX, MEMBER, MEMBER_OF, MIN, MINUS, MOD, MULTIPLICATION, NAMED_PARAMETER, NEW, NOT, NOT_BETWEEN, NOT_EQUAL, NOT_EXISTS, NOT_IN, NOT_LIKE, NOT_MEMBER, NOT_MEMBER_OF, NULL, NULLIF, NULLS, NULLS_FIRST, NULLS_LAST, OBJECT, OF, ON, OPERATOR, OR, ORDER_BY, ORDER_SIBLINGS_BY, OUTER, PLUS, POSITION, POSITIONAL_PARAMETER, QUOTE, REGEXP, SCN, SELECT, SET, SIZE, SOME, SQL, SQRT, START_WITH, SUBSTRING, SUM, TABLE, THEN, TIMESTAMP, TRAILING, TREAT, TRIM, TRUE, TYPE, UNION, UNKNOWN, UPDATE, UPPER, VALUE, WHEN, WHERE
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Constructor Summary
Constructors Modifier Constructor Description protectedLogicalExpression(AbstractExpression parent, java.lang.String identifier)Creates a newLogicalExpression.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description JPQLQueryBNFgetQueryBNF()Returns the BNF of thisExpression.protected booleanisParsingComplete(WordParser wordParser, java.lang.String word, Expression expression)Determines whether the parsing is complete based on what is left in the given text.protected java.lang.StringparseIdentifier(WordParser wordParser)Parses the identifier of this expression.-
Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.CompoundExpression
acceptChildren, addChildrenTo, addOrderedChildrenTo, findQueryBNF, getActualIdentifier, getIdentifier, getLeftExpression, getLeftExpressionQueryBNFId, getRightExpression, getRightExpressionQueryBNFId, hasLeftExpression, hasRightExpression, hasSpaceAfterIdentifier, parse, setLeftExpression, setRightExpression, toParsedText
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Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractExpression
acceptUnknownVisitor, acceptUnknownVisitor, buildExpressionFromFallingBack, buildNullExpression, buildStringExpression, buildStringExpression, buildUnknownExpression, calculatePosition, children, findFallBackExpressionFactory, getExpressionFactory, getExpressionRegistry, getGrammar, getIdentifierVersion, getJPAVersion, getLength, getOffset, getParent, getQueryBNF, getRoot, getText, handleAggregate, handleCollection, isAncestor, isIdentifier, isNull, isTolerant, isUnknown, isVirtual, orderedChildren, parse, parseUsingExpressionFactory, populatePosition, rebuildActualText, rebuildParsedText, setParent, setText, shouldParseWithFactoryFirst, shouldSkipLiteral, toActualText, toParsedText, toString
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.eclipse.persistence.jpa.jpql.parser.Expression
accept
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Constructor Detail
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LogicalExpression
protected LogicalExpression(AbstractExpression parent, java.lang.String identifier)
Creates a newLogicalExpression.- Parameters:
parent- The parent of this expressionidentifier- The identifier of this expression
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Method Detail
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getQueryBNF
public final JPQLQueryBNF getQueryBNF()
Returns the BNF of thisExpression.- Returns:
- The
JPQLQueryBNF, which represents the grammar of thisExpression
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isParsingComplete
protected boolean isParsingComplete(WordParser wordParser, java.lang.String word, Expression expression)
Determines whether the parsing is complete based on what is left in the given text. The text is never empty.- Overrides:
isParsingCompletein classAbstractExpression- Parameters:
wordParser- The text to parse based on the current position of the cursorword- The word that was retrieved from the given text, which is the first word in the textexpression- TheExpressionthat has already been parsed- Returns:
trueif the text no longer can't be parsed by the current expression;falseif more can be parsed
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parseIdentifier
protected java.lang.String parseIdentifier(WordParser wordParser)
Parses the identifier of this expression.- Specified by:
parseIdentifierin classCompoundExpression- Parameters:
wordParser- TheWordParsercontaining the text to parse, which starts with the identifier- Returns:
- The identifier for this expression
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