org.tynamo.jdo.internal
Class JDOEntityValueEncoder<E>

java.lang.Object
  org.tynamo.jdo.internal.JDOEntityValueEncoder<E>

All Implemented Interfaces:

org.apache.tapestry5.ValueEncoder<E>

public final class JDOEntityValueEncoder<E>
extends Object
implements org.apache.tapestry5.ValueEncoder<E>

A simple implementation of an ValueEncoder for JDO objects with a simple primary key.

This implementation is registered by default for all JDO persistent objects; however, if the JDOs in the application use complex primary keys or custom object IDs then they will likely need to use a different value encoder

Constructor Summary

JDOEntityValueEncoder(Class<E> pcClass, javax.jdo.PersistenceManager pm, org.apache.tapestry5.ioc.services.PropertyAccess propertyAccess, org.apache.tapestry5.ioc.services.TypeCoercer typeCoercer, org.slf4j.Logger logger)
Creates a new JDOEntityValueEncoder object.

Method Summary

String	toClient(E value) Encodes the ID of the field marked with javax.jdo.annotations.PrimaryKey as a string.
E	toValue(String clientValue) Decodes the primary key value to an actual JDO object

Methods inherited from class java.lang.Object

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

Constructor Detail

JDOEntityValueEncoder

public JDOEntityValueEncoder(Class<E> pcClass,
                             javax.jdo.PersistenceManager pm,
                             org.apache.tapestry5.ioc.services.PropertyAccess propertyAccess,
                             org.apache.tapestry5.ioc.services.TypeCoercer typeCoercer,
                             org.slf4j.Logger logger)

Creates a new JDOEntityValueEncoder object.

Parameters:

pcClass - Class for entity

pm - PersistenceManager to use

propertyAccess - PropertyAccess from tapestry

typeCoercer - typeCoercer from tapestry

logger - Logger to use

Method Detail

toClient

public String toClient(E value)

Encodes the ID of the field marked with javax.jdo.annotations.PrimaryKey as a string.

Specified by:

toClient in interface org.apache.tapestry5.ValueEncoder<E>

Parameters:

the - string value of the ID

Returns:

toValue

public E toValue(String clientValue)

Decodes the primary key value to an actual JDO object

Specified by:

toValue in interface org.apache.tapestry5.ValueEncoder<E>

Parameters:

the - value coming from the client

Returns:

the full blown JDO object