Package org.eclipse.persistence.jpa.jpql.tools

Class AbstractContentAssistVisitor.SelectClauseCollectionHelper

java.lang.Object

org.eclipse.persistence.jpa.jpql.tools.AbstractContentAssistVisitor.AbstractSelectClauseCollectionHelper<SelectClause>

org.eclipse.persistence.jpa.jpql.tools.AbstractContentAssistVisitor.SelectClauseCollectionHelper

All Implemented Interfaces:

AbstractContentAssistVisitor.CollectionExpressionHelper<SelectClause>

Enclosing class:

AbstractContentAssistVisitor

protected static final class AbstractContentAssistVisitor.SelectClauseCollectionHelper
extends AbstractContentAssistVisitor.AbstractSelectClauseCollectionHelper<SelectClause>

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SelectClauseCollectionHelper(AbstractContentAssistVisitor visitor)

Method Summary

Modifier and Type	Method	Description
void	addAtTheEndOfChild(SelectClause expression, CollectionExpression collectionExpression, int index, boolean hasComma, boolean virtualSpace)	Adds the proposals because the cursor is at the end of the child at the given position.
void	addTheBeginningOfChild(SelectClause expression, CollectionExpression collectionExpression, int index, boolean hasComma)	Adds the proposals because the cursor is at the beginning of the child Expression at the given position.
int	preExpressionLength(SelectClause expression)	Returns the length of anything that can be defined before the first child.

Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.AbstractContentAssistVisitor.AbstractSelectClauseCollectionHelper

addIdentifier, buildCollectionExpression, canContinue, hasDelimiterAfterIdentifier, maxCollectionSize, queryBNF

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectClauseCollectionHelper

protected SelectClauseCollectionHelper(AbstractContentAssistVisitor visitor)

Method Detail

addAtTheEndOfChild

public void addAtTheEndOfChild(SelectClause expression,
                               CollectionExpression collectionExpression,
                               int index,
                               boolean hasComma,
                               boolean virtualSpace)

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

Specified by:

addAtTheEndOfChild in interface AbstractContentAssistVisitor.CollectionExpressionHelper<SelectClause>

Overrides:

addAtTheEndOfChild in class AbstractContentAssistVisitor.AbstractSelectClauseCollectionHelper<SelectClause>

Parameters:

expression - The Expression being visited

collectionExpression - The CollectionExpression is either the child of the given Expression or a temporary generated one that usually contains a single item

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

hasComma - Indicates whether a comma is present before the child at the given position; if the index is 0, then this is false by default

virtualSpace - Indicates if this method is called because the cursor is at the end of the child at the specified index but by considering there is a virtual space at the end of that child

addTheBeginningOfChild

public void addTheBeginningOfChild(SelectClause expression,
                                   CollectionExpression collectionExpression,
                                   int index,
                                   boolean hasComma)

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

Specified by:

addTheBeginningOfChild in interface AbstractContentAssistVisitor.CollectionExpressionHelper<SelectClause>

Overrides:

addTheBeginningOfChild in class AbstractContentAssistVisitor.AbstractSelectClauseCollectionHelper<SelectClause>

Parameters:

expression - The Expression being visited

collectionExpression - The CollectionExpression is either the child of the given Expression or a temporary generated one that usually contains a single item. This can be null if the position is at the beginning

index - The position of the child that was scanned

hasComma - Indicates whether a comma is present before the child at the given position; if the index is 0, then this is false by default

preExpressionLength

public int preExpressionLength(SelectClause expression)

Returns the length of anything that can be defined before the first child. An example can be "DISTINCT " in "AVG(DISTINCT e.name)".

Specified by:

preExpressionLength in interface AbstractContentAssistVisitor.CollectionExpressionHelper<SelectClause>

Overrides:

preExpressionLength in class AbstractContentAssistVisitor.AbstractSelectClauseCollectionHelper<SelectClause>

Parameters:

expression - The Expression being visited

Returns:

The length of anything that was parsed before the first child or 0 if nothing was parsed