Package org.apache.hadoop.hdfs.server.common

Class GenerationStamp

java.lang.Object

org.apache.hadoop.util.SequentialNumber

org.apache.hadoop.hdfs.server.common.GenerationStamp

All Implemented Interfaces:

org.apache.hadoop.util.IdGenerator

@Private
public class GenerationStamp
extends org.apache.hadoop.util.SequentialNumber

A GenerationStamp is a Hadoop FS primitive, identified by a long.

Field Summary

Fields

Modifier and Type	Field	Description
static long	LAST_RESERVED_STAMP	The last reserved generation stamp.

Constructor Summary

Constructors

Constructor	Description
GenerationStamp()	Create a new instance, initialized to LAST_RESERVED_STAMP.

Method Summary

Methods inherited from class org.apache.hadoop.util.SequentialNumber

equals, getCurrentValue, hashCode, nextValue, setCurrentValue, setIfGreater, skipTo

Methods inherited from class java.lang.Object

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

Field Detail

LAST_RESERVED_STAMP

public static final long LAST_RESERVED_STAMP

The last reserved generation stamp.

See Also:

Constant Field Values

Constructor Detail

GenerationStamp

public GenerationStamp()

Create a new instance, initialized to LAST_RESERVED_STAMP.