EclipseLink 2.4.2, build 'v20130514-5956486' API Reference

org.eclipse.persistence.jpa.jpql.parser
Class GeneralIdentificationExpressionFactory

java.lang.Object
  extended by org.eclipse.persistence.jpa.jpql.parser.ExpressionFactory
      extended by org.eclipse.persistence.jpa.jpql.parser.GeneralIdentificationExpressionFactory
All Implemented Interfaces:
java.lang.Comparable<ExpressionFactory>
Direct Known Subclasses:
KeyExpressionFactory, ValueExpressionFactory

public abstract class GeneralIdentificationExpressionFactory
extends ExpressionFactory

This ValueExpressionFactory creates a general identification variable, which is either with the identifier KEY or VALUE and then checks the existence of a path expression.

Version:
2.4
See Also:
KeyExpressionFactory, ValueExpressionFactory
Author:
Pascal Filion
Since:
2.3

Constructor Summary
GeneralIdentificationExpressionFactory(java.lang.String id, java.lang.String identifier)
          Creates a new GeneralIdentificationExpressionFactory.
 
Method Summary
protected abstract  AbstractExpression buildExpression(AbstractExpression parent)
          Creates the actual expression this factory manages.
protected  AbstractExpression buildExpression(AbstractExpression parent, WordParser wordParser, java.lang.String word, JPQLQueryBNF queryBNF, AbstractExpression expression, boolean tolerant)
          Creates a new Expression.
 
Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.ExpressionFactory
compareTo, equals, getExpressionRegistry, getFallBackExpressionFactoryId, getId, hashCode, identifiers, setFallBackExpressionFactory, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

GeneralIdentificationExpressionFactory

public GeneralIdentificationExpressionFactory(java.lang.String id,
                                              java.lang.String identifier)
Creates a new GeneralIdentificationExpressionFactory.

Parameters:
id - The unique identifier of this ExpressionFactory
identifier - The JPQL identifier handled by this factory
Method Detail

buildExpression

protected abstract AbstractExpression buildExpression(AbstractExpression parent)
Creates the actual expression this factory manages.

Parameters:
parent - The parent of this expression
Returns:
The Expression this factory manages

buildExpression

protected final AbstractExpression buildExpression(AbstractExpression parent,
                                                   WordParser wordParser,
                                                   java.lang.String word,
                                                   JPQLQueryBNF queryBNF,
                                                   AbstractExpression expression,
                                                   boolean tolerant)
Creates a new Expression.

Specified by:
buildExpression in class ExpressionFactory
Parameters:
parent - The parent expression
wordParser - The text to parse based on the current position of the cursor
word - The current word to parse
queryBNF - The BNF grammar that was used to identifier this factory to be capable to parse a portion of the query
expression - During the parsing, it is possible the first part of an expression was parsed which needs to be used as a sub-expression of the newly created expression
Returns:
A new Expression representing a portion or the totality of the given text

EclipseLink 2.4.2, build 'v20130514-5956486' API Reference