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org.apache.crunch.types.writable
Class WritableDeepCopier<T extends org.apache.hadoop.io.Writable>

java.lang.Object
  org.apache.crunch.types.writable.WritableDeepCopier<T>

Type Parameters:

T - The type of Writable that can be copied

All Implemented Interfaces:

Serializable, DeepCopier<T>

public class WritableDeepCopier<T extends org.apache.hadoop.io.Writable>
extends Object
implements DeepCopier<T>

Performs deep copies of Writable values.

See Also:

Serialized Form

Constructor Summary

WritableDeepCopier(Class<T> writableClass)

Method Summary

T	deepCopy(T source) Create a deep copy of a value.
void	initialize(org.apache.hadoop.conf.Configuration conf) Initialize the deep copier with a job-specific configuration

Methods inherited from class java.lang.Object

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

Constructor Detail

WritableDeepCopier

public WritableDeepCopier(Class<T> writableClass)

Method Detail

initialize

public void initialize(org.apache.hadoop.conf.Configuration conf)

Description copied from interface: DeepCopier

Initialize the deep copier with a job-specific configuration

Specified by:

initialize in interface DeepCopier<T extends org.apache.hadoop.io.Writable>

Parameters:

conf - Job-specific configuration

deepCopy

public T deepCopy(T source)

Description copied from interface: DeepCopier

Create a deep copy of a value.

Specified by:

deepCopy in interface DeepCopier<T extends org.apache.hadoop.io.Writable>

Parameters:

source - The value to be copied

Returns:

The deep copy of the value