Class AbstractContentAssistVisitor.AbstractHavingClauseStatementHelper<T extends AbstractSelectStatement>
- java.lang.Object
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- org.eclipse.persistence.jpa.jpql.tools.AbstractContentAssistVisitor.AbstractHavingClauseStatementHelper<T>
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- All Implemented Interfaces:
AbstractContentAssistVisitor.StatementHelper<T>
- Direct Known Subclasses:
AbstractContentAssistVisitor.HavingClauseStatementHelper,AbstractContentAssistVisitor.SimpleHavingClauseStatementHelper
- Enclosing class:
- AbstractContentAssistVisitor
protected abstract static class AbstractContentAssistVisitor.AbstractHavingClauseStatementHelper<T extends AbstractSelectStatement> extends java.lang.Object implements AbstractContentAssistVisitor.StatementHelper<T>
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Constructor Summary
Constructors Modifier Constructor Description protectedAbstractHavingClauseStatementHelper(AbstractContentAssistVisitor visitor)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidaddClauseProposals()Adds the JPQL identifier of the clause being scanned by this helper.voidaddInternalClauseProposals(T expression)Adds the JPQL identifier of the internal clause being scanned by this helper.ExpressiongetClause(T expression)Returns the clause being scanned by this helper.booleanhasClause(T expression)Determines whether the clause exists in the parsed tree.booleanisClauseComplete(T expression)Determines whether the clause being scanned is complete or not.booleanisRequired()Determines whether the clause is required in order to make the JPQL query grammatically valid.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.eclipse.persistence.jpa.jpql.tools.AbstractContentAssistVisitor.StatementHelper
getNextHelper, hasSpaceAfterClause
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Constructor Detail
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AbstractHavingClauseStatementHelper
protected AbstractHavingClauseStatementHelper(AbstractContentAssistVisitor visitor)
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Method Detail
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addClauseProposals
public void addClauseProposals()
Adds the JPQL identifier of the clause being scanned by this helper.Note: The identifier should not be added directly to the list, it needs to be filtered out based on the location of the cursor, it can be within a word.
- Specified by:
addClauseProposalsin interfaceAbstractContentAssistVisitor.StatementHelper<T extends AbstractSelectStatement>
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addInternalClauseProposals
public void addInternalClauseProposals(T expression)
Adds the JPQL identifier of the internal clause being scanned by this helper. For instance, theFROMclause could add its own sub-clauses.Note: The identifier should not be added directly to the list, it needs to be filtered out based on the location of the cursor, it can be within a word.
- Specified by:
addInternalClauseProposalsin interfaceAbstractContentAssistVisitor.StatementHelper<T extends AbstractSelectStatement>- Parameters:
expression- TheAbstractSelectStatementbeing visited
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getClause
public Expression getClause(T expression)
Returns the clause being scanned by this helper. It is safe to type cast the clause becauseAbstractContentAssistVisitor.StatementHelper.hasClause(Expression)is called before this one.- Specified by:
getClausein interfaceAbstractContentAssistVisitor.StatementHelper<T extends AbstractSelectStatement>- Parameters:
expression- TheAbstractSelectStatementbeing visited- Returns:
- The clause being scanned
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hasClause
public boolean hasClause(T expression)
Determines whether the clause exists in the parsed tree.- Specified by:
hasClausein interfaceAbstractContentAssistVisitor.StatementHelper<T extends AbstractSelectStatement>- Parameters:
expression- TheAbstractSelectStatementbeing visited- Returns:
trueif the clause has been parsed;falseotherwise
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isClauseComplete
public boolean isClauseComplete(T expression)
Determines whether the clause being scanned is complete or not.- Specified by:
isClauseCompletein interfaceAbstractContentAssistVisitor.StatementHelper<T extends AbstractSelectStatement>- Parameters:
expression- TheAbstractSelectStatementbeing visited- Returns:
trueif the clause is complete;falseotherwise
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isRequired
public boolean isRequired()
Determines whether the clause is required in order to make the JPQL query grammatically valid.- Specified by:
isRequiredin interfaceAbstractContentAssistVisitor.StatementHelper<T extends AbstractSelectStatement>- Returns:
trueif the clause has to be defined;falseif the clause is optional
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