Package org.apache.flink.runtime.state

Class DefaultKeyedStateStore

  • All Implemented Interfaces:
    org.apache.flink.api.common.state.KeyedStateStore
    Direct Known Subclasses:
    WindowOperator.AbstractPerWindowStateStore
    public class DefaultKeyedStateStore
extends Object
implements org.apache.flink.api.common.state.KeyedStateStore
    Default implementation of KeyedStateStore that currently forwards state registration to a RuntimeContext.

    • Constructor Summary

      Constructors 
      Constructor Description
      DefaultKeyedStateStore​(KeyedStateBackend<?> keyedStateBackend, org.apache.flink.api.common.functions.SerializerFactory serializerFactory)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      <IN,​ACC,​OUT>
      org.apache.flink.api.common.state.AggregatingState<IN,​OUT>      		 getAggregatingState​(org.apache.flink.api.common.state.AggregatingStateDescriptor<IN,​ACC,​OUT> stateProperties)  
      <T> org.apache.flink.api.common.state.ListState<T> getListState​(org.apache.flink.api.common.state.ListStateDescriptor<T> stateProperties)  
      <UK,​UV>
      org.apache.flink.api.common.state.MapState<UK,​UV>      		 getMapState​(org.apache.flink.api.common.state.MapStateDescriptor<UK,​UV> stateProperties)  
      protected <S extends org.apache.flink.api.common.state.State>
      S      		 getPartitionedState​(org.apache.flink.api.common.state.StateDescriptor<S,​?> stateDescriptor)  
      <T> org.apache.flink.api.common.state.ReducingState<T> getReducingState​(org.apache.flink.api.common.state.ReducingStateDescriptor<T> stateProperties)  
      <T> org.apache.flink.api.common.state.ValueState<T> getState​(org.apache.flink.api.common.state.ValueStateDescriptor<T> stateProperties)  

    • Field Detail

      • serializerFactory

        protected final org.apache.flink.api.common.functions.SerializerFactory serializerFactory

    • Constructor Detail

      • DefaultKeyedStateStore

        public DefaultKeyedStateStore​(KeyedStateBackend<?> keyedStateBackend,
                              org.apache.flink.api.common.functions.SerializerFactory serializerFactory)

    • Method Detail

      • getState

        public <T> org.apache.flink.api.common.state.ValueState<T> getState​(org.apache.flink.api.common.state.ValueStateDescriptor<T> stateProperties)
        Specified by:
        getState in interface org.apache.flink.api.common.state.KeyedStateStore

      • getListState

        public <T> org.apache.flink.api.common.state.ListState<T> getListState​(org.apache.flink.api.common.state.ListStateDescriptor<T> stateProperties)
        Specified by:
        getListState in interface org.apache.flink.api.common.state.KeyedStateStore

      • getReducingState

        public <T> org.apache.flink.api.common.state.ReducingState<T> getReducingState​(org.apache.flink.api.common.state.ReducingStateDescriptor<T> stateProperties)
        Specified by:
        getReducingState in interface org.apache.flink.api.common.state.KeyedStateStore

      • getAggregatingState

        public <IN,​ACC,​OUT> org.apache.flink.api.common.state.AggregatingState<IN,​OUT> getAggregatingState​(org.apache.flink.api.common.state.AggregatingStateDescriptor<IN,​ACC,​OUT> stateProperties)
        Specified by:
        getAggregatingState in interface org.apache.flink.api.common.state.KeyedStateStore

      • getMapState

        public <UK,​UV> org.apache.flink.api.common.state.MapState<UK,​UV> getMapState​(org.apache.flink.api.common.state.MapStateDescriptor<UK,​UV> stateProperties)
        Specified by:
        getMapState in interface org.apache.flink.api.common.state.KeyedStateStore

      • getPartitionedState

        protected <S extends org.apache.flink.api.common.state.State> S getPartitionedState​(org.apache.flink.api.common.state.StateDescriptor<S,​?> stateDescriptor)
                                                                             throws Exception
        Throws:
        Exception