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## 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 java.lang.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
`CustomFieldSerializer()`

Method Summary
`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 Detail

### CustomFieldSerializer

    public CustomFieldSerializer()

Method Detail

### 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

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