org.apache.flink.api.java.operators

Class FilterOperator<T>

java.lang.Object

org.apache.flink.api.java.DataSet<OUT>

org.apache.flink.api.java.operators.Operator<OUT,O>

org.apache.flink.api.java.operators.SingleInputOperator<IN,OUT,O>

org.apache.flink.api.java.operators.SingleInputUdfOperator<T,T,FilterOperator<T>>

org.apache.flink.api.java.operators.FilterOperator<T>

Type Parameters:

T - The type of the data set filtered by the operator.

All Implemented Interfaces:

UdfOperator<FilterOperator<T>>

public class FilterOperator<T>
extends SingleInputUdfOperator<T,T,FilterOperator<T>>

This operator represents the application of a "filter" function on a data set, and the result data set produced by the function.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	defaultName
protected FilterFunction<T>	function

Fields inherited from class org.apache.flink.api.java.operators.Operator

dop, name

Constructor Summary

Constructors

Constructor and Description
FilterOperator(DataSet<T> input, FilterFunction<T> function, String defaultName)

Method Summary

Methods

Modifier and Type	Method and Description
protected FilterOperatorBase<T,FlatMapFunction<T,T>>	translateToDataFlow(Operator<T> input) Translates this operation to a data flow operator of the common data flow API.

Methods inherited from class org.apache.flink.api.java.operators.SingleInputUdfOperator

extractSemanticAnnotationsFromUdf, getBroadcastSets, getParameters, getSemanticProperties, setSemanticProperties, withBroadcastSet, withConstantSet, withParameters

Methods inherited from class org.apache.flink.api.java.operators.SingleInputOperator

getInput, getInputType

Methods inherited from class org.apache.flink.api.java.operators.Operator

getName, getParallelism, getResultType, name, setParallelism

Methods inherited from class org.apache.flink.api.java.DataSet

aggregate, checkSameExecutionContext, clean, coGroup, cross, crossWithHuge, crossWithTiny, distinct, distinct, distinct, distinct, filter, first, flatMap, getExecutionEnvironment, getType, groupBy, groupBy, groupBy, iterate, iterateDelta, join, join, joinWithHuge, joinWithTiny, map, mapPartition, max, maxBy, min, minBy, output, partitionByHash, partitionByHash, partitionByHash, partitionCustom, partitionCustom, partitionCustom, print, printToErr, project, rebalance, reduce, reduceGroup, runOperation, sum, union, write, write, writeAsCsv, writeAsCsv, writeAsCsv, writeAsCsv, writeAsFormattedText, writeAsFormattedText, writeAsText, writeAsText

Methods inherited from class java.lang.Object

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

Field Detail

function

protected final FilterFunction<T> function

defaultName

protected final String defaultName

Constructor Detail

FilterOperator

public FilterOperator(DataSet<T> input,
              FilterFunction<T> function,
              String defaultName)

Method Detail

translateToDataFlow

protected FilterOperatorBase<T,FlatMapFunction<T,T>> translateToDataFlow(Operator<T> input)

Description copied from class: SingleInputOperator

Translates this operation to a data flow operator of the common data flow API.

Specified by:

translateToDataFlow in class SingleInputOperator<T,T,FilterOperator<T>>

Parameters:

input - The data flow operator that produces this operation's input data.

Returns:

The translated data flow operator.