org.apache.hadoop.hdfs.server.common

Enum HdfsServerConstants.ReplicaState

java.lang.Object

java.lang.Enum<HdfsServerConstants.ReplicaState>

org.apache.hadoop.hdfs.server.common.HdfsServerConstants.ReplicaState

All Implemented Interfaces:

Serializable, Comparable<HdfsServerConstants.ReplicaState>

Enclosing interface:

org.apache.hadoop.hdfs.server.common.HdfsServerConstants

public static enum HdfsServerConstants.ReplicaState
extends Enum<HdfsServerConstants.ReplicaState>

Block replica states, which it can go through while being constructed.

Enum Constant Summary

Enum Constants

Enum Constant and Description
FINALIZED Replica is finalized.
RBW Replica is being written to.
RUR Replica is under recovery.
RWR Replica is waiting to be recovered.
TEMPORARY Temporary replica: created for replication and relocation only.

Method Summary

Methods

Modifier and Type	Method and Description
static HdfsServerConstants.ReplicaState	getState(int v)
int	getValue()
static HdfsServerConstants.ReplicaState	read(DataInput in) Read from in
static HdfsServerConstants.ReplicaState	valueOf(String name) Returns the enum constant of this type with the specified name.
static HdfsServerConstants.ReplicaState[]	values() Returns an array containing the constants of this enum type, in the order they are declared.
void	write(DataOutput out) Write to out

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

FINALIZED

public static final HdfsServerConstants.ReplicaState FINALIZED

Replica is finalized. The state when replica is not modified.

RBW

public static final HdfsServerConstants.ReplicaState RBW

Replica is being written to.

RWR

public static final HdfsServerConstants.ReplicaState RWR

Replica is waiting to be recovered.

RUR

public static final HdfsServerConstants.ReplicaState RUR

Replica is under recovery.

TEMPORARY

public static final HdfsServerConstants.ReplicaState TEMPORARY

Temporary replica: created for replication and relocation only.

Method Detail

values

public static HdfsServerConstants.ReplicaState[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (HdfsServerConstants.ReplicaState c : HdfsServerConstants.ReplicaState.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static HdfsServerConstants.ReplicaState valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getValue

public int getValue()

getState

public static HdfsServerConstants.ReplicaState getState(int v)

read

public static HdfsServerConstants.ReplicaState read(DataInput in)
                                             throws IOException

Read from in

Throws:

IOException

write

public void write(DataOutput out)
           throws IOException

Write to out

Throws:

IOException