Module org.eclipse.persistence.jpa.jpql

Package org.eclipse.persistence.jpa.jpql.parser

Class MathExpressionFactory

java.lang.Object

org.eclipse.persistence.jpa.jpql.parser.ExpressionFactory

org.eclipse.persistence.jpa.jpql.parser.MathExpressionFactory

All Implemented Interfaces:

Comparable<ExpressionFactory>

Direct Known Subclasses:

MathExpressionFactory.Ceiling, MathExpressionFactory.Exp, MathExpressionFactory.Floor, MathExpressionFactory.Ln, MathExpressionFactory.Power, MathExpressionFactory.Round, MathExpressionFactory.Sign

public abstract class MathExpressionFactory
extends ExpressionFactory

Math functions expressions factories.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MathExpressionFactory.Ceiling
static class	MathExpressionFactory.Exp
static class	MathExpressionFactory.Floor
static class	MathExpressionFactory.Ln
static class	MathExpressionFactory.Power
static class	MathExpressionFactory.Round
static class	MathExpressionFactory.Sign

Method Summary

Modifier and Type	Method	Description
protected AbstractExpression	buildExpression(AbstractExpression parent, WordParser wordParser, 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, getId, hashCode, identifiers, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

buildExpression

protected AbstractExpression buildExpression(AbstractExpression parent,
                                             WordParser wordParser,
                                             String word,
                                             JPQLQueryBNF queryBNF,
                                             AbstractExpression expression,
                                             boolean tolerant)

Description copied from class: ExpressionFactory

Creates a new Expression.

Specified by:

buildExpression in class ExpressionFactory

Parameters:

parent - The parent AbstractExpression

wordParser - The text to parse based on the current position of the cursor

word - The current word being parsed

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 AbstractExpression representing the portion or the totality of the text held by WordParser starting at the cursor position