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

Class ConverterFactory

java.lang.Object

net.sf.basedb.util.jep.convert.ConverterFactory

public class ConverterFactory
extends Object

Keep JepConversionFunction objects for converting built-in JEP object to Query API Expression or Restriction objects.

Version:

2.4

Author:

nicklas

See Also:

JepConversionFunction

Last modified

$Date: 2008-09-11 22:08:14 +0200 (to, 11 sep 2008) $

Field Summary

Fields

Modifier and Type	Field	Description
private static Map<Object,JepConversionFunction<?>>	converters

Constructor Summary

Constructors

Constructor	Description
ConverterFactory()

Method Summary

Modifier and Type	Method	Description
static JepConversionFunction<?>	getConverter(Object o)	Get a converter for the specified built-in JEP object.
static JepConversionFunction<?>	getConverterByClass(Object o)	Get a converter for the specified built-in JEP object by checking if a converter has been registered for it's class.
static Collection<JepConversionFunction<?>>	getConverters()	Get all registered converters.
static void	registerConverter(Object o, JepConversionFunction<?> converter)	Add a converter for a specific object.

Methods inherited from class java.lang.Object

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

Field Details

converters

private static Map<Object,JepConversionFunction<?>> converters

Constructor Details

ConverterFactory

public ConverterFactory()

Method Details

getConverter

public static JepConversionFunction<?> getConverter(Object o)

Get a converter for the specified built-in JEP object.

Parameters:

o - The object to convert

Returns:

A JepConversionFunction or null if no converter is found

getConverterByClass

public static JepConversionFunction<?> getConverterByClass(Object o)

Get a converter for the specified built-in JEP object by checking if a converter has been registered for it's class.

Parameters:

o - The object to convert

Returns:

A JepConversionFunction or null if no converter is found

registerConverter

public static void registerConverter(Object o,
JepConversionFunction<?> converter)

Add a converter for a specific object. It can for example, be the class of a JEP function, the symbol for an operator:

registerConverter(Add.class, new AddConverter());
registerConverter("==", new EqualsConverter());

Parameters:

o - The object defining what the converter can convert

converter - The converter

Throws:

ItemAlreadyExistsException - If a converter already exists for the given class

getConverters

public static Collection<JepConversionFunction<?>> getConverters()

Get all registered converters.