org.apache.tapestry5.internal.jpa
Class JpaValueEncoder<E>

java.lang.Object
  org.apache.tapestry5.internal.jpa.JpaValueEncoder<E>

All Implemented Interfaces:

ValueEncoder<E>

public class JpaValueEncoder<E>
extends java.lang.Object
implements ValueEncoder<E>

Constructor Summary

JpaValueEncoder(javax.persistence.metamodel.EntityType<E> entity, EntityManagerManager entityManagerManager, java.lang.String persistenceUnitName, PropertyAccess propertyAccess, TypeCoercer typeCoercer, org.slf4j.Logger logger)

Method Summary

java.lang.String	toClient(E value) Converts a value into a client-side representation.
E	toValue(java.lang.String clientValue) Converts a client-side representation, provided by ValueEncoder.toClient(Object), back into a server-side value.

Methods inherited from class java.lang.Object

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

Constructor Detail

JpaValueEncoder

public JpaValueEncoder(javax.persistence.metamodel.EntityType<E> entity,
                       EntityManagerManager entityManagerManager,
                       java.lang.String persistenceUnitName,
                       PropertyAccess propertyAccess,
                       TypeCoercer typeCoercer,
                       org.slf4j.Logger logger)

Method Detail

toClient

public java.lang.String toClient(E value)

Converts a value into a client-side representation. The value should be parseable by ValueEncoder.toValue(String). In some cases, what is returned is an identifier used to locate the true object, rather than a string representation of the value itself.

Specified by:

toClient in interface ValueEncoder<E>

Parameters:

value - to be encoded

Returns:

a string representation of the value, or the value's identity

toValue

public E toValue(java.lang.String clientValue)

Converts a client-side representation, provided by ValueEncoder.toClient(Object), back into a server-side value.

Specified by:

toValue in interface ValueEncoder<E>

Parameters:

clientValue - string representation of the value's identity

Returns:

the corresponding entity, or null if not found