Package net.sf.basedb.util.jep.convert

Class EqualsConverter

java.lang.Object

net.sf.basedb.util.jep.convert.AbstractJepConversionFunction<Node>

net.sf.basedb.util.jep.convert.EqualsConverter

All Implemented Interfaces:

JepConversionFunction<Node>

public class EqualsConverter
extends AbstractJepConversionFunction<Node>

Convert the '==' operator to a Query API Restriction.

Version:

2.4

Author:

nicklas

Last modified

$Date: 2010-09-03 13:58:11 +0200 (fr, 03 sep 2010) $

Constructor Summary

Constructors

Constructor	Description
EqualsConverter()

Method Summary

Modifier and Type	Method	Description
String	getDescription()	Get a short description of the function or operator
String	getName()	Get the name of the function or the symbol of the operator
boolean	isOperator()	If this converter is a built-in operator.
Restriction	toRestriction(Node node)	Convert to restriction by calling Restrictions.eq(Expression, Expression).

Methods inherited from class net.sf.basedb.util.jep.convert.AbstractJepConversionFunction

isFunction, toExpression

Methods inherited from class java.lang.Object

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

Constructor Details

EqualsConverter

public EqualsConverter()

Method Details

isOperator

public boolean isOperator()

Description copied from interface: JepConversionFunction

If this converter is a built-in operator.

Specified by:

isOperator in interface JepConversionFunction<Node>

Overrides:

isOperator in class AbstractJepConversionFunction<Node>

Returns:

Always FALSE

getName

public String getName()

Description copied from interface: JepConversionFunction

Get the name of the function or the symbol of the operator

Specified by:

getName in interface JepConversionFunction<Node>

Overrides:

getName in class AbstractJepConversionFunction<Node>

Returns:

The string '=='

getDescription

public String getDescription()

Description copied from interface: JepConversionFunction

Get a short description of the function or operator

Specified by:

getDescription in interface JepConversionFunction<Node>

Overrides:

getDescription in class AbstractJepConversionFunction<Node>

Returns:

Always null

toRestriction

public Restriction toRestriction(Node node)

Convert to restriction by calling Restrictions.eq(Expression, Expression). If the right-hand node is string constant containing '%' Restrictions.like(Expression, Expression) is used instead (since 2.16).

Specified by:

toRestriction in interface JepConversionFunction<Node>

Overrides:

toRestriction in class AbstractJepConversionFunction<Node>

Parameters:

node - The object to convert

Returns:

A restriction or null