Package org.apache.hadoop.hdfs.util

Class Holder<T>

java.lang.Object

org.apache.hadoop.hdfs.util.Holder<T>

public class Holder<T>
extends Object

A Holder is simply a wrapper around some other object. This is useful in particular for storing immutable values like boxed Integers in a collection without having to do the "lookup" of the value twice.

Field Summary

Fields

Modifier and Type	Field	Description
T	held

Constructor Summary

Constructors

Constructor	Description
Holder(T held)

Method Summary

Modifier and Type	Method	Description
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

held

public T held

Constructor Details

Holder

public Holder(T held)

Method Details

toString

public String toString()

Overrides:

toString in class Object