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org.eclipse.persistence.jpa.internal.jpql
Interface ContentAssistVisitor.CollectionExpressionHelper<T extends Expression>

All Known Implementing Classes:

ContentAssistVisitor.ConstrutorCollectionHelper, ContentAssistVisitor.DoubleEncapsulatedCollectionHelper, ContentAssistVisitor.FromClauseCollectionHelper, ContentAssistVisitor.GroupByClauseCollectionHelper, ContentAssistVisitor.JoinCollectionHelper, ContentAssistVisitor.OrderByClauseCollectionHelper, ContentAssistVisitor.TripleEncapsulatedCollectionHelper, ContentAssistVisitor.UpdateItemCollectionHelper

Enclosing class:

ContentAssistVisitor

private static interface ContentAssistVisitor.CollectionExpressionHelper<T extends Expression>

Method Summary

void	addAtTheEndOfChild(T expression, Expression child, int index) Adds the proposals because the cursor is at the end of the given child Expression.
void	addProposals(T expression, int index) Adds
CollectionExpression	buildCollectionExpression(T 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(T expression) Determines whether
int	maxCollectionSize(T expression) Returns the maximum number of encapsulated expressions the Expression allows.
int	preExpressionLength(T expression) Returns the length to add to
JPQLQueryBNF	queryBNF(T expression, int index) Returns the

Method Detail

addAtTheEndOfChild

void addAtTheEndOfChild(T expression,
                        Expression child,
                        int index)

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

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

void addProposals(T expression,
                  int index)

Adds

Parameters:

expression -

index -

buildCollectionExpression

CollectionExpression buildCollectionExpression(T 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.

Parameters:

expression - The parent of the children to retrieve

Returns:

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

hasDelimiterAfterIdentifier

boolean hasDelimiterAfterIdentifier(T expression)

Determines whether

Parameters:

expression -

Returns:

maxCollectionSize

int maxCollectionSize(T expression)

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

Parameters:

expression - The Expression for which its maximum number of children

Returns:

The maximum number of children the expression can have

preExpressionLength

int preExpressionLength(T expression)

Returns the length to add to

queryBNF

JPQLQueryBNF queryBNF(T expression,
                      int index)

Returns the

Parameters:

expression -

Returns:

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