com.appenginefan.toolkit.persistence
Class ProtocolBufferPersistence<T extends Message>

java.lang.Object
  com.appenginefan.toolkit.persistence.MarshallingPersistence<T>
      com.appenginefan.toolkit.persistence.ProtocolBufferPersistence<T>

Type Parameters:

T - the type of protocol message that this persistence is for

All Implemented Interfaces:

Persistence<T>

public class ProtocolBufferPersistence<T extends Message>
extends MarshallingPersistence<T>

Persistence that uses googles protocol buffer framework for efficient representation and serialization of data.

Constructor Summary

ProtocolBufferPersistence(Persistence<byte[]> backend, T prototype)
Constructor

Method Summary

protected byte[]	makeArray(T nonNullValue)
protected T	makeType(byte[] nonNullValue)

Methods inherited from class com.appenginefan.toolkit.persistence.MarshallingPersistence

get, keyScan, keyScanReverse, mutate, scan, scanReverse

Methods inherited from class java.lang.Object

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

Constructor Detail

ProtocolBufferPersistence

public ProtocolBufferPersistence(Persistence<byte[]> backend,
                                 T prototype)

Constructor

Parameters:

backend - a backend that stores serialized protocol buffers

prototype - a prototype instance of the generic type that this peristence object is for.

Method Detail

makeArray

protected byte[] makeArray(T nonNullValue)

Specified by:

makeArray in class MarshallingPersistence<T extends Message>

makeType

protected T makeType(byte[] nonNullValue)

Specified by:

makeType in class MarshallingPersistence<T extends Message>