Package org.apache.flink.api.java.operators

Interface Summary

Interface	Description
CustomUnaryOperation<IN,OUT>
UdfOperator<O extends UdfOperator<O>>	This interface marks operators as operators that execute user-defined functions (UDFs), such as RichMapFunction, RichReduceFunction, or RichCoGroupFunction.

Class Summary

Class	Description
AggregateOperator<IN>	This operator represents the application of a "aggregate" operation on a data set, and the result data set produced by the function.
AggregateOperator.AggregatingUdf<T extends Tuple>
CoGroupOperator<I1,I2,OUT>	A DataSet that is the result of a CoGroup transformation.
CoGroupOperator.CoGroupOperatorSets<I1,I2>	Intermediate step of a CoGroup transformation.
CrossOperator<I1,I2,OUT>	A DataSet that is the result of a Cross transformation.
CrossOperator.CrossProjection<I1,I2>
CrossOperator.DefaultCross<I1,I2>	A Cross transformation that wraps pairs of crossed elements into Tuple2. It also represents the DataSet that is the result of a Cross transformation.
CrossOperator.DefaultCrossFunction<T1,T2>
CrossOperator.ProjectCrossFunction<T1,T2,R extends Tuple>
DataSink<T>
DataSource<OUT>	An operation that creates a new data set (data source).
DistinctOperator<T>	This operator represents the application of a "distinct" function on a data set, and the result data set produced by the function.
DistinctOperator.DistinctFunction<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.
FlatMapOperator<IN,OUT>	This operator represents the application of a "flatMap" function on a data set, and the result data set produced by the function.
Grouping<T>	Grouping is an intermediate step for a transformation on a grouped DataSet. The following transformation can be applied on Grouping: UnsortedGrouping.reduce(org.apache.flink.api.common.functions.ReduceFunction), UnsortedGrouping.reduceGroup(org.apache.flink.api.common.functions.GroupReduceFunction), and UnsortedGrouping.aggregate(org.apache.flink.api.java.aggregation.Aggregations, int).
GroupReduceOperator<IN,OUT>	This operator represents the application of a "reduceGroup" function on a data set, and the result data set produced by the function.
JoinOperator<I1,I2,OUT>	A DataSet that is the result of a Join transformation.
JoinOperator.DefaultFlatJoinFunction<T1,T2>
JoinOperator.DefaultJoin<I1,I2>	A Join transformation that wraps pairs of joining elements into Tuple2. It also represents the DataSet that is the result of a Join transformation.
JoinOperator.EquiJoin<I1,I2,OUT>	A Join transformation that applies a on each pair of joining elements. It also represents the DataSet that is the result of a Join transformation.
JoinOperator.JoinOperatorSets<I1,I2>	Intermediate step of a Join transformation.
JoinOperator.JoinProjection<I1,I2>
JoinOperator.LeftSemiFlatJoinFunction<T1,T2>
JoinOperator.ProjectFlatJoinFunction<T1,T2,R extends Tuple>
JoinOperator.ProjectJoin<I1,I2,OUT extends Tuple>	A Join transformation that projects joining elements or fields of joining Tuples into result Tuples.
JoinOperator.RightSemiFlatJoinFunction<T1,T2>
Keys<T>
Keys.ExpressionKeys<T>
Keys.FieldPositionKeys<T>
Keys.SelectorFunctionKeys<T,K>
MapOperator<IN,OUT>	This operator represents the application of a "map" function on a data set, and the result data set produced by the function.
Operator<OUT,O extends Operator<OUT,O>>	Base class of all operators in the Java API.
OperatorTranslation
ProjectOperator<IN,OUT extends Tuple>	This operator represents the application of a projection operation on a data set, and the result data set produced by the function.
ProjectOperator.Projection<T>
ReduceOperator<IN>	This operator represents the application of a "reduce" function on a data set, and the result data set produced by the function.
SingleInputOperator<IN,OUT,O extends SingleInputOperator<IN,OUT,O>>	Base class for operations that operates on a single input data set.
SingleInputUdfOperator<IN,OUT,O extends SingleInputUdfOperator<IN,OUT,O>>	The SingleInputUdfOperator is the base class of all unary operators that execute user-defined functions (UDFs).
SortedGrouping<T>	SortedGrouping is an intermediate step for a transformation on a grouped and sorted DataSet. The following transformation can be applied on sorted groups: SortedGrouping.reduceGroup(org.apache.flink.api.common.functions.GroupReduceFunction),
TwoInputOperator<IN1,IN2,OUT,O extends TwoInputOperator<IN1,IN2,OUT,O>>	Base class for operations that operates on two input data sets.
TwoInputUdfOperator<IN1,IN2,OUT,O extends TwoInputUdfOperator<IN1,IN2,OUT,O>>	The TwoInputUdfOperator is the base class of all binary operators that execute user-defined functions (UDFs).
UnionOperator<T>	Java API operator for union of two data sets
UnsortedGrouping<T>

Enum Summary

Enum	Description
JoinOperator.JoinHint	An enumeration of hints, optionally usable to tell the system how exactly execute the join.