org.apache.flink.runtime.state.internal

Interface InternalAppendingState<K,N,IN,SV,OUT>

Type Parameters:

K - The type of key the state is associated to

N - The type of the namespace

IN - The type of elements added to the state

SV - The type of elements in the state

OUT - The type of the resulting element in the state

All Superinterfaces:

AppendingState<IN,OUT>, InternalKvState<K,N,SV>, State

All Known Subinterfaces:

InternalAggregatingState<K,N,IN,SV,OUT>, InternalListState<K,N,T>, InternalMergingState<K,N,IN,SV,OUT>, InternalReducingState<K,N,T>

public interface InternalAppendingState<K,N,IN,SV,OUT>
extends InternalKvState<K,N,SV>, AppendingState<IN,OUT>

The peer to the AppendingState in the internal state type hierarchy.

See InternalKvState for a description of the internal state hierarchy.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.runtime.state.internal.InternalKvState

InternalKvState.StateIncrementalVisitor<K,N,V>

Method Summary

Modifier and Type	Method and Description
SV	getInternal() Get internally stored value.
void	updateInternal(SV valueToStore) Update internally stored value.

Methods inherited from interface org.apache.flink.runtime.state.internal.InternalKvState

getKeySerializer, getNamespaceSerializer, getSerializedValue, getStateIncrementalVisitor, getValueSerializer, setCurrentNamespace

Methods inherited from interface org.apache.flink.api.common.state.AppendingState

add, get

Methods inherited from interface org.apache.flink.api.common.state.State

clear

Method Detail

getInternal

SV getInternal()
        throws Exception

Get internally stored value.

Returns:

internally stored value.

Throws:

Exception - The method may forward exception thrown internally (by I/O or functions).

updateInternal

void updateInternal(SV valueToStore)
             throws Exception

Update internally stored value.

Parameters:

valueToStore - new value to store.

Throws:

Exception - The method may forward exception thrown internally (by I/O or functions).