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Oracle Fusion Middleware Java API Reference for Oracle TopLink
11g Release 1 (11.1.1)

E28847-01


org.eclipse.persistence.jpa.internal.jpql.parser
Class ArithmeticExpressionFactory

java.lang.Object
  extended by org.eclipse.persistence.jpa.internal.jpql.parser.ExpressionFactory
      extended by org.eclipse.persistence.jpa.internal.jpql.parser.ArithmeticExpressionFactory

All Implemented Interfaces:
java.lang.Comparable<ExpressionFactory>

final class ArithmeticExpressionFactory
extends ExpressionFactory

This ExpressionFactory creates a new expression when the portion of the query to parse starts with an arithmetic identifier. It is possible the expression to parse is also a NumericLiteral or an ArithmeticFactor.

Since:
2.3
Version:
2.3
Author:
Pascal Filion

Nested Class Summary
private  class ArithmeticExpressionFactory.ArithmeticExpressionVisitor
          This ExpressionVisitor is used to check if the Expression passed to this factory is an AdditionExpression or SubtractionExpression.

 

Field Summary
(package private) static java.lang.String ID
          The unique identifier of this ArithmeticExpressionFactory.
private  ArithmeticExpressionFactory.ArithmeticExpressionVisitor visitor
          This ArithmeticExpressionFactory.ArithmeticExpressionVisitor is used to check if the Expression passed to this factory is an AdditionExpression or SubtractionExpression.

 

Constructor Summary
ArithmeticExpressionFactory()
          Creates a new AbstractArithmeticExpressionFactory.

 

Method Summary
private  CompoundExpression buildExpression(AbstractExpression parent, char character)
          Creates the Expression this factory for which it is responsible.
(package private)  AbstractExpression buildExpression(AbstractExpression parent, WordParser wordParser, java.lang.String word, JPQLQueryBNF queryBNF, AbstractExpression expression, boolean tolerant)
          Creates a new Expression.
private  ArithmeticExpressionFactory.ArithmeticExpressionVisitor visitor()
           

 

Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.parser.ExpressionFactory
compareTo, equals, getId, getVersion, hashCode, identifiers, toString

 

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Field Detail

visitor

private ArithmeticExpressionFactory.ArithmeticExpressionVisitor visitor
This ArithmeticExpressionFactory.ArithmeticExpressionVisitor is used to check if the Expression passed to this factory is an AdditionExpression or SubtractionExpression.

ID

static final java.lang.String ID
The unique identifier of this ArithmeticExpressionFactory.
See Also:
Constant Field Values

Constructor Detail

ArithmeticExpressionFactory

ArithmeticExpressionFactory()
Creates a new AbstractArithmeticExpressionFactory.
Parameters:
id - The unique identifier of this ExpressionFactory
identifier - The JPQL identifier handled by this factory

Method Detail

buildExpression

private CompoundExpression buildExpression(AbstractExpression parent,
                                           char character)
Creates the Expression this factory for which it is responsible.
Parameters:
parent - The parent of the new Expression
character -
Returns:
A new CompoundExpression

buildExpression

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

visitor

private ArithmeticExpressionFactory.ArithmeticExpressionVisitor visitor()

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