org.apache.flink.state.api.output

类 MergeOperatorStates

java.lang.Object

org.apache.flink.state.api.output.MergeOperatorStates

所有已实现的接口:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.GroupReduceFunction<org.apache.flink.runtime.checkpoint.OperatorState,org.apache.flink.runtime.checkpoint.savepoint.Savepoint>

@Internal
public class MergeOperatorStates
extends Object
implements org.apache.flink.api.common.functions.GroupReduceFunction<org.apache.flink.runtime.checkpoint.OperatorState,org.apache.flink.runtime.checkpoint.savepoint.Savepoint>

A reducer that aggregates multiple OperatorState's into a single Savepoint.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
MergeOperatorStates(Collection<org.apache.flink.runtime.checkpoint.MasterState> masterStates)

方法概要

限定符和类型	方法和说明
void	reduce(Iterable<org.apache.flink.runtime.checkpoint.OperatorState> values, org.apache.flink.util.Collector<org.apache.flink.runtime.checkpoint.savepoint.Savepoint> out)

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

MergeOperatorStates

public MergeOperatorStates(Collection<org.apache.flink.runtime.checkpoint.MasterState> masterStates)

方法详细资料

reduce

public void reduce(Iterable<org.apache.flink.runtime.checkpoint.OperatorState> values,
                   org.apache.flink.util.Collector<org.apache.flink.runtime.checkpoint.savepoint.Savepoint> out)

指定者:

reduce 在接口中 org.apache.flink.api.common.functions.GroupReduceFunction<org.apache.flink.runtime.checkpoint.OperatorState,org.apache.flink.runtime.checkpoint.savepoint.Savepoint>