AssignRangeIndex (Flink : Runtime 2.0.0 API)

java.lang.Object
- org.apache.flink.api.common.functions.AbstractRichFunction
- - org.apache.flink.api.common.functions.RichMapPartitionFunction<IN,org.apache.flink.api.java.tuple.Tuple2<Integer,IN>>
  - - org.apache.flink.runtime.operators.udf.AssignRangeIndex<IN>

Type Parameters:

IN - The original data type.

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.MapPartitionFunction<IN,org.apache.flink.api.java.tuple.Tuple2<Integer,IN>>, org.apache.flink.api.common.functions.RichFunction
```
public class AssignRangeIndex<IN>
extends org.apache.flink.api.common.functions.RichMapPartitionFunction<IN,org.apache.flink.api.java.tuple.Tuple2<Integer,IN>>
```
This mapPartition function require a DataSet with RangeBoundaries as broadcast input, it generate Tuple2 which includes range index and record itself as output.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

AssignRangeIndex(org.apache.flink.api.common.typeutils.TypeComparatorFactory<IN> typeComparator)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`mapPartition(Iterable<IN> values, org.apache.flink.util.Collector<org.apache.flink.api.java.tuple.Tuple2<Integer,IN>> out)`

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction
close, getIterationRuntimeContext, getRuntimeContext, open, setRuntimeContext

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AssignRangeIndex
```
public AssignRangeIndex(org.apache.flink.api.common.typeutils.TypeComparatorFactory<IN> typeComparator)
```
- Method Detail
  - mapPartition
```
public void mapPartition(Iterable<IN> values,
                         org.apache.flink.util.Collector<org.apache.flink.api.java.tuple.Tuple2<Integer,IN>> out)
                  throws Exception
```
    Specified by:
    
    mapPartition in interface org.apache.flink.api.common.functions.MapPartitionFunction<IN,org.apache.flink.api.java.tuple.Tuple2<Integer,IN>>
    
    Specified by:
    
    mapPartition in class org.apache.flink.api.common.functions.RichMapPartitionFunction<IN,org.apache.flink.api.java.tuple.Tuple2<Integer,IN>>
    
    Throws:
    
    Exception