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org.eclipse.persistence.jpa.internal.jpql
Class ContentAssistVisitor.GroupByClauseCollectionHelper

java.lang.Object
org.eclipse.persistence.jpa.internal.jpql.ContentAssistVisitor.GroupByClauseCollectionHelper

All Implemented Interfaces:

ContentAssistVisitor.CollectionExpressionHelper<GroupByClause>

Enclosing class:

ContentAssistVisitor

private class ContentAssistVisitor.GroupByClauseCollectionHelper

extends java.lang.Object

implements ContentAssistVisitor.CollectionExpressionHelper<GroupByClause>

Constructor Summary

private

ContentAssistVisitor.GroupByClauseCollectionHelper()

Method Summary

void	addAtTheEndOfChild(GroupByClause expression, Expression child, int index) Adds the proposals because the cursor is at the end of the given child Expression.
void	addProposals(GroupByClause expression, int index) Adds
CollectionExpression	buildCollectionExpression(GroupByClause expression) Either returns the given Expression's child, which is already a CollectionExpression or requests this helper to return a "virtual" CollectionExpression that is wrapping the single element.
boolean	hasDelimiterAfterIdentifier(GroupByClause expression) Determines whether
int	maxCollectionSize(GroupByClause expression) Returns the maximum number of encapsulated expressions the Expression allows.
int	preExpressionLength(GroupByClause expression) Returns the length to add to
JPQLQueryBNF	queryBNF(GroupByClause expression, int index) Returns the

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ContentAssistVisitor.GroupByClauseCollectionHelper

private ContentAssistVisitor.GroupByClauseCollectionHelper()

Method Detail

addAtTheEndOfChild

public void addAtTheEndOfChild(GroupByClause expression,
                               Expression child,
                               int index)

Adds the proposals because the cursor is at the end of the given child Expression.

Specified by:

addAtTheEndOfChild in interface ContentAssistVisitor.CollectionExpressionHelper<GroupByClause>

Parameters:

expression - The Expression being visited

child - The child of the parent Expression for which proposals can be added at the end

index - The position of that child in the collection of children

addProposals

public void addProposals(GroupByClause expression,
                         int index)

Adds

Specified by:

addProposals in interface ContentAssistVisitor.CollectionExpressionHelper<GroupByClause>

buildCollectionExpression

public CollectionExpression buildCollectionExpression(GroupByClause expression)

Either returns the given Expression's child, which is already a CollectionExpression or requests this helper to return a "virtual" CollectionExpression that is wrapping the single element.

Specified by:

buildCollectionExpression in interface ContentAssistVisitor.CollectionExpressionHelper<GroupByClause>

Parameters:

expression - The parent of the children to retrieve

Returns:

The given expression's child or a "virtual" one

hasDelimiterAfterIdentifier

public boolean hasDelimiterAfterIdentifier(GroupByClause expression)

Determines whether

Specified by:

hasDelimiterAfterIdentifier in interface ContentAssistVisitor.CollectionExpressionHelper<GroupByClause>

Returns:

maxCollectionSize

public int maxCollectionSize(GroupByClause expression)

Returns the maximum number of encapsulated expressions the Expression allows. Some expression only allow 2, others 3 and others allow an unlimited number.

Specified by:

maxCollectionSize in interface ContentAssistVisitor.CollectionExpressionHelper<GroupByClause>

Parameters:

expression - The Expression for which its maximum number of children

Returns:

The maximum number of children the expression can have

preExpressionLength

public int preExpressionLength(GroupByClause expression)

Returns the length to add to

Specified by:

preExpressionLength in interface ContentAssistVisitor.CollectionExpressionHelper<GroupByClause>

queryBNF

public JPQLQueryBNF queryBNF(GroupByClause expression,
                             int index)

Returns the

Specified by:

queryBNF in interface ContentAssistVisitor.CollectionExpressionHelper<GroupByClause>

Returns:

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