org.apache.flink.api.java.hadoop.mapred

类 HadoopInputFormat<K,V>

java.lang.Object

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

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

org.apache.flink.api.java.hadoop.mapred.HadoopInputFormatBase<K,V,org.apache.flink.api.java.tuple.Tuple2<K,V>>

org.apache.flink.api.java.hadoop.mapred.HadoopInputFormat<K,V>

类型参数:

K - Type of the key

V - Type of the value.

所有已实现的接口:

Serializable, org.apache.flink.api.common.io.InputFormat<org.apache.flink.api.java.tuple.Tuple2<K,V>,HadoopInputSplit>, org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.api.java.tuple.Tuple2<K,V>>, org.apache.flink.core.io.InputSplitSource<HadoopInputSplit>

@Public
public class HadoopInputFormat<K,V>
extends HadoopInputFormatBase<K,V,org.apache.flink.api.java.tuple.Tuple2<K,V>>
implements org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.api.java.tuple.Tuple2<K,V>>

Wrapper for using HadoopInputFormats (mapred-variant) with Flink.

The IF is returning a Tuple2<K,V>.

另请参阅:

序列化表格

字段概要

从类继承的字段 org.apache.flink.api.java.hadoop.mapred.HadoopInputFormatBase

fetched, hasNext, key, keyClass, value, valueClass

从类继承的字段 org.apache.flink.api.java.hadoop.common.HadoopInputFormatCommonBase

credentials

构造器概要

构造器

构造器和说明
HadoopInputFormat(org.apache.hadoop.mapred.InputFormat<K,V> mapredInputFormat, Class<K> key, Class<V> value)
HadoopInputFormat(org.apache.hadoop.mapred.InputFormat<K,V> mapredInputFormat, Class<K> key, Class<V> value, org.apache.hadoop.mapred.JobConf job)

方法概要

限定符和类型	方法和说明
org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.api.java.tuple.Tuple2<K,V>>	getProducedType()
org.apache.flink.api.java.tuple.Tuple2<K,V>	nextRecord(org.apache.flink.api.java.tuple.Tuple2<K,V> record)

从类继承的方法 org.apache.flink.api.java.hadoop.mapred.HadoopInputFormatBase

close, configure, createInputSplits, fetchNext, getInputSplitAssigner, getJobConf, getStatistics, open, reachedEnd

从类继承的方法 org.apache.flink.api.java.hadoop.common.HadoopInputFormatCommonBase

getCredentialsFromUGI, read, write

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

构造器详细资料

HadoopInputFormat

public HadoopInputFormat(org.apache.hadoop.mapred.InputFormat<K,V> mapredInputFormat,
                         Class<K> key,
                         Class<V> value,
                         org.apache.hadoop.mapred.JobConf job)

HadoopInputFormat

public HadoopInputFormat(org.apache.hadoop.mapred.InputFormat<K,V> mapredInputFormat,
                         Class<K> key,
                         Class<V> value)

方法详细资料

nextRecord

public org.apache.flink.api.java.tuple.Tuple2<K,V> nextRecord(org.apache.flink.api.java.tuple.Tuple2<K,V> record)
                                                       throws IOException

指定者:

nextRecord 在接口中 org.apache.flink.api.common.io.InputFormat<org.apache.flink.api.java.tuple.Tuple2<K,V>,HadoopInputSplit>

抛出:

IOException

getProducedType

public org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.api.java.tuple.Tuple2<K,V>> getProducedType()

指定者:

getProducedType 在接口中 org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.api.java.tuple.Tuple2<K,V>>