GemFire Data Serialization (DataSerializable and DataSerializer)
DataSerializable interface gives you quick serialization of your objects.
DataSerializable interface gives you faster and more compact data serialization than the standard Java serialization or GemFire PDX serialization. However, while GemFire
DataSerializable interface is generally more performant than GemFire’s
PdxSerializable, it requires full deserialization on the server and then reserialization to send the data back to the client.
You can further speed serialization by registering the instantiator for your
DataSerializable class through
Instantiator, eliminating the need for reflection to find the right serializer. You can provide your own serialization through the API.
The recommended way to register your custom
Instantiator is by specifying it in the
serialization-registration element of cache.xml.
For more information, see the online Java documentation for
The following provides an example of how to register an instantiator using cache.xml.
<serialization-registration> <instantiator id="30"> <class-name>com.package.MyClass</class-name> </instantiator> </serialization-registration>
In addition to speeding standard object serialization, you can use the
DataSerializable interface to serialize any custom objects you store in the cache.
You can also use
DataSerializer to serialize domain objects. It serializes data in the same way as
DataSerializable but allows you to serialize classes without modifying the domain class code.