ml.shifu.guagua.io
类 HaltBytable

java.lang.Object
  ml.shifu.guagua.io.HaltBytable

所有已实现的接口：

Bytable

public abstract class HaltBytable
extends Object
implements Bytable

Abstract Bytable implementation to read and store halt status.

Halt status is used for master or worker result to determine whether the application should be terminated.

By default master is the only one who has the right to stop the application if halt status in master result, no matter halt status in each worker is true.

One switch in GuaguaConstants#GUAGUA_WORKER_HALT_ENABLE, if enabled, application will be terminated if all workers are halted no matter what is the master halt status.

构造方法摘要

HaltBytable()

方法摘要

abstract void	doReadFields(DataInput in) Read fields from in stream.
abstract void	doWrite(DataOutput out) Write fields to out stream.
boolean	isHalt() Return halt status.
void	readFields(DataInput in) De-serialize the fields of this object from in.
void	setHalt(boolean isHalt) Set status to halt if isHalt is true.
void	write(DataOutput out) Serialize the fields of this object to out.

从类 java.lang.Object 继承的方法

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

构造方法详细信息

HaltBytable

public HaltBytable()

方法详细信息

setHalt

public void setHalt(boolean isHalt)

Set status to halt if isHalt is true.

isHalt

public boolean isHalt()

Return halt status.

write

public void write(DataOutput out)
           throws IOException

从接口 Bytable 复制的描述

Serialize the fields of this object to out.

指定者：

接口 Bytable 中的 write

参数：

out - DataOuput to serialize this object into.

抛出：

IOException - In case of any io exception.

doWrite

public abstract void doWrite(DataOutput out)
                      throws IOException

Write fields to out stream.

抛出：

IOException

readFields

public void readFields(DataInput in)
                throws IOException

从接口 Bytable 复制的描述

De-serialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

指定者：

接口 Bytable 中的 readFields

参数：

in - DataInput to de-seriablize this object from.

抛出：

IOException - In case of any io exception.

doReadFields

public abstract void doReadFields(DataInput in)
                           throws IOException

Read fields from in stream.

抛出：

IOException