org.eclipse.persistence.jpa.rs.util.xmladapters

Class ReferenceAdapterV2<T extends org.eclipse.persistence.internal.weaving.PersistenceWeavedRest>

java.lang.Object

javax.xml.bind.annotation.adapters.XmlAdapter<T,T>

org.eclipse.persistence.jpa.rs.util.xmladapters.ReferenceAdapterV2<T>

Type Parameters:

T - entity class of this adapter

public class ReferenceAdapterV2<T extends org.eclipse.persistence.internal.weaving.PersistenceWeavedRest>
extends XmlAdapter<T,T>

Reference adapter used in JPARS V2. Main purpose of this adapter is retrieving an entity by link when unmarshalling.

Author:

Dmitry Kornilov

Since:

EclipseLink 2.6.0

Field Summary

Fields

Modifier and Type	Field and Description
protected PersistenceContext	context

Constructor Summary

Constructors

Constructor and Description
ReferenceAdapterV2()
ReferenceAdapterV2(PersistenceContext context) Instantiates a new reference adapter.

Method Summary

Modifier and Type	Method and Description
T	marshal(T o) Marshal just passes through.
T	unmarshal(T o) If 'canonical' or 'self' link is present loads entity from the database.

Methods inherited from class java.lang.Object

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

Field Detail

context

protected PersistenceContext context

Constructor Detail

ReferenceAdapterV2

public ReferenceAdapterV2()

ReferenceAdapterV2

public ReferenceAdapterV2(PersistenceContext context)

Instantiates a new reference adapter.

Parameters:

context - persistent context (mandatory)

Method Detail

marshal

public T marshal(T o)
          throws java.lang.Exception

Marshal just passes through.

Specified by:

marshal in class XmlAdapter<T extends org.eclipse.persistence.internal.weaving.PersistenceWeavedRest,T extends org.eclipse.persistence.internal.weaving.PersistenceWeavedRest>

Parameters:

o -

Returns:

Throws:

java.lang.Exception

unmarshal

public T unmarshal(T o)
            throws java.lang.Exception

If 'canonical' or 'self' link is present loads entity from the database. Otherwise uses data provided.

Specified by:

unmarshal in class XmlAdapter<T extends org.eclipse.persistence.internal.weaving.PersistenceWeavedRest,T extends org.eclipse.persistence.internal.weaving.PersistenceWeavedRest>

Parameters:

o - The value to be converted. Can be null.

Throws:

java.lang.Exception - if there's an error during the conversion. The caller is responsible for reporting the error to the user through ValidationEventHandler.