org.apache.hadoop.hdfs
Class ShortCircuitShm.ShmId

java.lang.Object
  org.apache.hadoop.hdfs.ShortCircuitShm.ShmId

All Implemented Interfaces:

Comparable<ShortCircuitShm.ShmId>

Enclosing class:

ShortCircuitShm

public static class ShortCircuitShm.ShmId
extends Object
implements Comparable<ShortCircuitShm.ShmId>

Identifies a DfsClientShm.

Constructor Summary

ShortCircuitShm.ShmId(long hi, long lo)

Method Summary

int	compareTo(ShortCircuitShm.ShmId other)
static ShortCircuitShm.ShmId	createRandom() Generate a random ShmId.
boolean	equals(Object o)
long	getHi()
long	getLo()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ShortCircuitShm.ShmId

public ShortCircuitShm.ShmId(long hi,
                             long lo)

Method Detail

createRandom

public static ShortCircuitShm.ShmId createRandom()

Generate a random ShmId. We generate ShmIds randomly to prevent a malicious client from successfully guessing one and using that to interfere with another client.

getHi

public long getHi()

getLo

public long getLo()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

compareTo

public int compareTo(ShortCircuitShm.ShmId other)

Specified by:

compareTo in interface Comparable<ShortCircuitShm.ShmId>