ml.shifu.guagua.yarn
类 GuaguaSequenceAsBinaryRecordReader

java.lang.Object
  ml.shifu.guagua.yarn.GuaguaSequenceAsBinaryRecordReader

所有已实现的接口：

GuaguaRecordReader<GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>>

已过时。 use GuaguaSequenceAsBinaryRecordReader

@Deprecated
public class GuaguaSequenceAsBinaryRecordReader
extends Object
implements GuaguaRecordReader<GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>>

A reader read HDFS sequence file key by key. The sequence key and value types are both BytesWritable.

Copy some code from SequenceFileAsBinaryInputFormat but to support GuaguaRecordReader interface.

If use default constructor, user should also call initialize(GuaguaFileSplit) like in below:

 this.setRecordReader(new GuaguaSequenceAsBinaryRecordReader());
 this.getRecordReader().initialize(fileSplit);
 

or directly use other constructors:

 this.setRecordReader(new GuaguaSequenceAsBinaryRecordReader(fileSplit));
 

构造方法摘要

GuaguaSequenceAsBinaryRecordReader()
已过时。

GuaguaSequenceAsBinaryRecordReader(org.apache.hadoop.conf.Configuration conf, GuaguaFileSplit split)
已过时。

GuaguaSequenceAsBinaryRecordReader(GuaguaFileSplit split)
已过时。

方法摘要

void	close() 已过时。
GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>	getCurrentKey() 已过时。
GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>	getCurrentValue() 已过时。
float	getProgress() 已过时。 Return the progress within the input split
void	initialize(GuaguaFileSplit split) 已过时。
boolean	nextKeyValue() 已过时。

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

GuaguaSequenceAsBinaryRecordReader

public GuaguaSequenceAsBinaryRecordReader()

已过时。

GuaguaSequenceAsBinaryRecordReader

public GuaguaSequenceAsBinaryRecordReader(GuaguaFileSplit split)
                                   throws IOException

已过时。

抛出：

IOException

GuaguaSequenceAsBinaryRecordReader

public GuaguaSequenceAsBinaryRecordReader(org.apache.hadoop.conf.Configuration conf,
                                          GuaguaFileSplit split)
                                   throws IOException

已过时。

抛出：

IOException

方法详细信息

getProgress

public float getProgress()
                  throws IOException

已过时。

Return the progress within the input split

返回：

0.0 to 1.0 of the input byte range

抛出：

IOException

initialize

public void initialize(GuaguaFileSplit split)
                throws IOException

已过时。

指定者：

接口 GuaguaRecordReader<GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>> 中的 initialize

抛出：

IOException

nextKeyValue

public boolean nextKeyValue()
                     throws IOException

已过时。

指定者：

接口 GuaguaRecordReader<GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>> 中的 nextKeyValue

抛出：

IOException

getCurrentKey

public GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable> getCurrentKey()

已过时。

指定者：

接口 GuaguaRecordReader<GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>> 中的 getCurrentKey

getCurrentValue

public GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable> getCurrentValue()

已过时。

指定者：

接口 GuaguaRecordReader<GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>> 中的 getCurrentValue

close

public void close()
           throws IOException

已过时。

指定者：

接口 GuaguaRecordReader<GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>,GuaguaWritableAdapter<org.apache.hadoop.io.BytesWritable>> 中的 close

抛出：

IOException