org.apache.giraph.writable.kryo

Class KryoSimpleWrapper<T>

java.lang.Object

org.apache.giraph.writable.kryo.KryoSimpleWrapper<T>

Type Parameters:

T - Object type

All Implemented Interfaces:

Boxed<T>, org.apache.hadoop.io.Writable

public class KryoSimpleWrapper<T>
extends Object
implements org.apache.hadoop.io.Writable, Boxed<T>

Generic wrapper object, making any object writable. Usage of this class is similar to KryoWritableWrapper but unlike KryoWritableWrapper, this class does not support recursive/nested objects to provide better performance. If the underlying stream is a kryo output stream than the read/write happens with a kryo object that doesn't track references, providing significantly better performance.

Constructor Summary

Constructors

Constructor and Description
KryoSimpleWrapper() Creates wrapper initialized with null.
KryoSimpleWrapper(T object) Create wrapper given an object.

Method Summary

Modifier and Type	Method and Description
T	get() Unwrap the object value
void	readFields(DataInput in)
void	set(T object) Set wrapped object value
void	write(DataOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

KryoSimpleWrapper

public KryoSimpleWrapper(T object)

Create wrapper given an object.

Parameters:

object - Object instance

KryoSimpleWrapper

public KryoSimpleWrapper()

Creates wrapper initialized with null.

Method Detail

get

public T get()

Unwrap the object value

Specified by:

get in interface Boxed<T>

Returns:

Object value

set

public void set(T object)

Set wrapped object value

Specified by:

set in interface Boxed<T>

Parameters:

object - New object value

readFields

public void readFields(DataInput in)
                throws IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

IOException

write

public void write(DataOutput out)
           throws IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

IOException