com.bea.rfid.edge.toolkit.workflow
Class SerializationHelper

java.lang.Object
  com.bea.rfid.edge.toolkit.workflow.SerializationHelper

public class SerializationHelper
extends Object

Singleton class with utility methods that help in serialization and deserialization of objects within the edge flow system. Most of the utility methods use WorkflowNamingService to get to the registered serializers and deserializers and hence need the naming service to be passed in to the methods.

Method Summary

static SerializationHelper	getInstance() Returns the singleton instance of this class.
MessageDeserializer	lookupDeserializer(Document doc, WorkflowNamingService ns) Looks up deserializer for a given XML Document.
MessageSerializer	lookupSerializer(Object msg, WorkflowNamingService ns) Looks up serializer for a given object.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static SerializationHelper getInstance()

Returns the singleton instance of this class.

Returns:

The singleton instance.

lookupSerializer

public MessageSerializer lookupSerializer(Object msg,
                                          WorkflowNamingService ns)
                                   throws com.connecterra.ale.encoding.XMLSerializerException

Looks up serializer for a given object. It will first try to find a serializer for object's specific class. If there are none registered for that specific class, it will go up its superclasses chain to see if there is a serializer registered for any of the supertypes. If there are none registered for the supertypes, it will look for serializers registered for any of the interfaces this object implements.

Parameters:

msg - The object for which a serializer is to be found.

ns - Naming service implementation that will be used to lookup serializers.

Returns:

MessageSerializer for the input object.

Throws:

com.connecterra.ale.encoding.XMLSerializerException - If a serializer was not found for the object.

lookupDeserializer

public MessageDeserializer lookupDeserializer(Document doc,
                                              WorkflowNamingService ns)
                                       throws com.connecterra.ale.encoding.XMLDeserializerException

Looks up deserializer for a given XML Document. It will try to find deserializer for the document's root element's local name and namespace.

Parameters:

doc - The xml Document for which deserializer is to be found.

ns - Naming service that has deserializers and serializers registered with it.

Returns:

MessageDeserializer for the input document.

Throws:

com.connecterra.ale.encoding.XMLDeserializerException - If no deserializer was found for the Document.