com.google.appengine.tools.mapreduce.impl.util

Class SerializationUtil

java.lang.Object

com.google.appengine.tools.mapreduce.impl.util.SerializationUtil

public class SerializationUtil
extends Object

A serialization utility class.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SerializationUtil.CompressionType Type of compression to optionally use when serializing/deserializing objects.

Method Summary

Methods

Modifier and Type	Method and Description
static <T extends Serializable> T	clone(T toClone)
static Serializable	deserializeFromByteArray(byte[] bytes)
static <T> T	deserializeFromByteArray(byte[] bytes, boolean ignoreHeader)
static <T> T	deserializeFromByteBuffer(ByteBuffer bytes, boolean ignoreHeader)
static <T extends Serializable> T	deserializeFromDatastoreProperty(com.google.appengine.api.datastore.Entity entity, String property)
static <T extends Serializable> T	deserializeFromDatastoreProperty(com.google.appengine.api.datastore.Entity entity, String property, boolean lenient)
static byte[]	getBytes(ByteBuffer in)
static Iterable<com.google.appengine.api.datastore.Key>	getShardedValueKeysFor(com.google.appengine.api.datastore.Transaction tx, com.google.appengine.api.datastore.Key parent, String property)
static <T> T	readObjectFromObjectStreamUsingMarshaller(Marshaller<T> marshaller, ObjectInputStream oin)
static byte[]	serializeToByteArray(Serializable o)
static byte[]	serializeToByteArray(Serializable o, boolean ignoreHeader)
static byte[]	serializeToByteArray(Serializable o, boolean ignoreHeader, SerializationUtil.CompressionType compression)
static void	serializeToDatastoreProperty(com.google.appengine.api.datastore.Transaction tx, com.google.appengine.api.datastore.Entity entity, String property, Serializable o)
static void	serializeToDatastoreProperty(com.google.appengine.api.datastore.Transaction tx, com.google.appengine.api.datastore.Entity entity, String property, Serializable o, SerializationUtil.CompressionType compression)
static <T> void	writeObjectToOutputStreamUsingMarshaller(T object, Marshaller<T> marshaller, ObjectOutputStream oout)

Methods inherited from class java.lang.Object

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

Method Detail

deserializeFromByteArray

public static Serializable deserializeFromByteArray(byte[] bytes)

deserializeFromByteBuffer

public static <T> T deserializeFromByteBuffer(ByteBuffer bytes,
                              boolean ignoreHeader)

deserializeFromByteArray

public static <T> T deserializeFromByteArray(byte[] bytes,
                             boolean ignoreHeader)

deserializeFromDatastoreProperty

public static <T extends Serializable> T deserializeFromDatastoreProperty(com.google.appengine.api.datastore.Entity entity,
                                                          String property)

deserializeFromDatastoreProperty

public static <T extends Serializable> T deserializeFromDatastoreProperty(com.google.appengine.api.datastore.Entity entity,
                                                          String property,
                                                          boolean lenient)

serializeToDatastoreProperty

public static void serializeToDatastoreProperty(com.google.appengine.api.datastore.Transaction tx,
                                com.google.appengine.api.datastore.Entity entity,
                                String property,
                                Serializable o)

getShardedValueKeysFor

public static Iterable<com.google.appengine.api.datastore.Key> getShardedValueKeysFor(com.google.appengine.api.datastore.Transaction tx,
                                                                      com.google.appengine.api.datastore.Key parent,
                                                                      String property)

serializeToDatastoreProperty

public static void serializeToDatastoreProperty(com.google.appengine.api.datastore.Transaction tx,
                                com.google.appengine.api.datastore.Entity entity,
                                String property,
                                Serializable o,
                                SerializationUtil.CompressionType compression)

serializeToByteArray

public static byte[] serializeToByteArray(Serializable o)

serializeToByteArray

public static byte[] serializeToByteArray(Serializable o,
                          boolean ignoreHeader)

serializeToByteArray

public static byte[] serializeToByteArray(Serializable o,
                          boolean ignoreHeader,
                          SerializationUtil.CompressionType compression)

getBytes

public static byte[] getBytes(ByteBuffer in)

writeObjectToOutputStreamUsingMarshaller

public static <T> void writeObjectToOutputStreamUsingMarshaller(T object,
                                                Marshaller<T> marshaller,
                                                ObjectOutputStream oout)
                                                     throws IOException

Throws:

IOException

readObjectFromObjectStreamUsingMarshaller

public static <T> T readObjectFromObjectStreamUsingMarshaller(Marshaller<T> marshaller,
                                              ObjectInputStream oin)
                                                   throws IOException

Throws:

IOException

clone

public static <T extends Serializable> T clone(T toClone)