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org.apache.crunch.types
Class CollectionDeepCopier<T>

java.lang.Object
  org.apache.crunch.types.CollectionDeepCopier<T>

Type Parameters:

T - The type of Tuple implementation being copied

All Implemented Interfaces:

Serializable, DeepCopier<Collection<T>>

public class CollectionDeepCopier<T>
extends Object
implements DeepCopier<Collection<T>>

Performs deep copies (based on underlying PType deep copying) of Collections.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.crunch.types.DeepCopier

DeepCopier.NoOpDeepCopier<V>

Constructor Summary

CollectionDeepCopier(PType<T> elementType)

Method Summary

Collection<T>	deepCopy(Collection<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

CollectionDeepCopier

public CollectionDeepCopier(PType<T> elementType)

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<Collection<T>>

Parameters:

conf - Job-specific configuration

deepCopy

public Collection<T> deepCopy(Collection<T> source)

Description copied from interface: DeepCopier

Create a deep copy of a value.

Specified by:

deepCopy in interface DeepCopier<Collection<T>>

Parameters:

source - The value to be copied

Returns:

The deep copy of the value