org.apache.flink.api.java.hadoop.common

类 HadoopInputFormatCommonBase<T,SPITTYPE extends org.apache.flink.core.io.InputSplit>

java.lang.Object

org.apache.flink.api.common.io.RichInputFormat<T,SPITTYPE>

org.apache.flink.api.java.hadoop.common.HadoopInputFormatCommonBase<T,SPITTYPE>

所有已实现的接口:

Serializable, org.apache.flink.api.common.io.InputFormat<T,SPITTYPE>, org.apache.flink.core.io.InputSplitSource<SPITTYPE>

直接已知子类:

HadoopInputFormatBase, HadoopInputFormatBase

@Internal
public abstract class HadoopInputFormatCommonBase<T,SPITTYPE extends org.apache.flink.core.io.InputSplit>
extends org.apache.flink.api.common.io.RichInputFormat<T,SPITTYPE>

A common base for both "mapred" and "mapreduce" Hadoop input formats.

另请参阅:

序列化表格

字段概要

字段

限定符和类型	字段和说明
protected org.apache.hadoop.security.Credentials	credentials

构造器概要

构造器

限定符	构造器和说明
protected	HadoopInputFormatCommonBase(org.apache.hadoop.security.Credentials creds)

方法概要

限定符和类型	方法和说明
static org.apache.hadoop.security.Credentials	getCredentialsFromUGI(org.apache.hadoop.security.UserGroupInformation ugi)
void	read(ObjectInputStream in)
protected void	write(ObjectOutputStream out)

从类继承的方法 org.apache.flink.api.common.io.RichInputFormat

closeInputFormat, getRuntimeContext, openInputFormat, setRuntimeContext

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.api.common.io.InputFormat

close, configure, createInputSplits, getInputSplitAssigner, getStatistics, nextRecord, open, reachedEnd

字段详细资料

credentials

protected transient org.apache.hadoop.security.Credentials credentials

构造器详细资料

HadoopInputFormatCommonBase

protected HadoopInputFormatCommonBase(org.apache.hadoop.security.Credentials creds)

方法详细资料

write

protected void write(ObjectOutputStream out)
              throws IOException

抛出:

IOException

read

public void read(ObjectInputStream in)
          throws IOException

抛出:

IOException

getCredentialsFromUGI

public static org.apache.hadoop.security.Credentials getCredentialsFromUGI(org.apache.hadoop.security.UserGroupInformation ugi)

参数:

ugi - The user information

返回:

new credentials object from the user information.