Package com.google.gwt.user.client.rpc

Class CustomFieldSerializer<T>

java.lang.Object

com.google.gwt.user.client.rpc.CustomFieldSerializer<T>

Type Parameters:

T - the type of the object being serialized

Direct Known Subclasses:

ServerCustomFieldSerializer

public abstract class CustomFieldSerializer<T>
extends Object

An interface that may be implemented by class-based custom field serializers which will reduce the amount of server-side reflection during serialization, hence improving their serialization performance.

Constructor Summary

Constructors

Constructor	Description
CustomFieldSerializer()

Method Summary

Modifier and Type	Method	Description
abstract void	deserializeInstance(SerializationStreamReader streamReader, T instance)	Deserializes the content of the object from the SerializationStreamReader.
boolean	hasCustomInstantiateInstance()
T	instantiateInstance(SerializationStreamReader streamReader)	Instantiates an object from the SerializationStreamReader.
abstract void	serializeInstance(SerializationStreamWriter streamWriter, T instance)	Serializes the content of the object into the SerializationStreamWriter.

Methods inherited from class java.lang.Object

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

Constructor Details

CustomFieldSerializer

public CustomFieldSerializer()

Method Details

deserializeInstance

public abstract void deserializeInstance(SerializationStreamReader streamReader,
 T instance)
                                  throws SerializationException

Deserializes the content of the object from the SerializationStreamReader.

Parameters:

streamReader - the SerializationStreamReader to read the object's content from

instance - the object instance to deserialize

Throws:

SerializationException - if the deserialization operation is not successful

hasCustomInstantiateInstance

public boolean hasCustomInstantiateInstance()

Returns:

true if a specialist instantiateInstance(com.google.gwt.user.client.rpc.SerializationStreamReader) is implemented; false otherwise

instantiateInstance

public T instantiateInstance(SerializationStreamReader streamReader)
                      throws SerializationException

Instantiates an object from the SerializationStreamReader.

Most of the time, this can be left unimplemented and the framework will instantiate the instance itself. This is typically used when the object being deserialized is immutable, hence it has to be created with its state already set.

If this is overridden, the hasCustomInstantiateInstance() method must return true in order for the framework to know to call it.

Parameters:

streamReader - the SerializationStreamReader to read the object's content from

Returns:

an object that has been loaded from the SerializationStreamReader

Throws:

SerializationException - if the instantiation operation is not successful

serializeInstance

public abstract void serializeInstance(SerializationStreamWriter streamWriter,
 T instance)
                                throws SerializationException

Serializes the content of the object into the SerializationStreamWriter.

Parameters:

streamWriter - the SerializationStreamWriter to write the object's content to

instance - the object instance to serialize

Throws:

SerializationException - if the serialization operation is not successful