类的使用
org.apache.flink.state.api.OperatorIdentifier

使用OperatorIdentifier的程序包

程序包	说明
org.apache.flink.state.api
org.apache.flink.state.api.runtime.metadata

org.apache.flink.state.api中OperatorIdentifier的使用

返回OperatorIdentifier的org.apache.flink.state.api中的方法

限定符和类型	方法和说明
static OperatorIdentifier	OperatorIdentifier.forUid(String uid)
static OperatorIdentifier	OperatorIdentifier.forUidHash(String uidHash)

参数类型为OperatorIdentifier的org.apache.flink.state.api中的方法

限定符和类型	方法和说明
SavepointWriter	SavepointWriter.changeOperatorIdentifier(OperatorIdentifier from, OperatorIdentifier to) Changes the identifier of an operator.
<K,V> org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.api.java.tuple.Tuple2<K,V>>	SavepointReader.readBroadcastState(OperatorIdentifier identifier, String name, org.apache.flink.api.common.typeinfo.TypeInformation<K> keyTypeInfo, org.apache.flink.api.common.typeinfo.TypeInformation<V> valueTypeInfo) Read operator BroadcastState from a Savepoint.
<K,V> org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.api.java.tuple.Tuple2<K,V>>	SavepointReader.readBroadcastState(OperatorIdentifier identifier, String name, org.apache.flink.api.common.typeinfo.TypeInformation<K> keyTypeInfo, org.apache.flink.api.common.typeinfo.TypeInformation<V> valueTypeInfo, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<V> valueSerializer) Read operator BroadcastState from a Savepoint when a custom serializer was used; e.g., a different serializer than the one returned by TypeInformation#createSerializer.
<K,OUT> org.apache.flink.streaming.api.datastream.DataStream<OUT>	SavepointReader.readKeyedState(OperatorIdentifier identifier, KeyedStateReaderFunction<K,OUT> function) Read keyed state from an operator in a Savepoint.
<K,OUT> org.apache.flink.streaming.api.datastream.DataStream<OUT>	SavepointReader.readKeyedState(OperatorIdentifier identifier, KeyedStateReaderFunction<K,OUT> function, org.apache.flink.api.common.typeinfo.TypeInformation<K> keyTypeInfo, org.apache.flink.api.common.typeinfo.TypeInformation<OUT> outTypeInfo) Read keyed state from an operator in a Savepoint.
<T> org.apache.flink.streaming.api.datastream.DataStream<T>	SavepointReader.readListState(OperatorIdentifier identifier, String name, org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo) Read operator ListState from a Savepoint.
<T> org.apache.flink.streaming.api.datastream.DataStream<T>	SavepointReader.readListState(OperatorIdentifier identifier, String name, org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo, org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer) Read operator ListState from a Savepoint when a custom serializer was used; e.g., a different serializer than the one returned by TypeInformation#createSerializer.
<T> org.apache.flink.streaming.api.datastream.DataStream<T>	SavepointReader.readUnionState(OperatorIdentifier identifier, String name, org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo) Read operator UnionState from a Savepoint.
<T> org.apache.flink.streaming.api.datastream.DataStream<T>	SavepointReader.readUnionState(OperatorIdentifier identifier, String name, org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo, org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer) Read operator UnionState from a Savepoint when a custom serializer was used; e.g., a different serializer than the one returned by TypeInformation#createSerializer.
SavepointWriter	SavepointWriter.removeOperator(OperatorIdentifier identifier) Drop an existing operator from the savepoint.
<T> SavepointWriter	SavepointWriter.withOperator(OperatorIdentifier identifier, StateBootstrapTransformation<T> transformation) Adds a new operator to the savepoint.

org.apache.flink.state.api.runtime.metadata中OperatorIdentifier的使用

参数类型为OperatorIdentifier的org.apache.flink.state.api.runtime.metadata中的方法

限定符和类型	方法和说明
void	SavepointMetadataV2.addOperator(OperatorIdentifier identifier, StateBootstrapTransformation<?> transformation)
org.apache.flink.runtime.checkpoint.OperatorState	SavepointMetadataV2.getOperatorState(OperatorIdentifier identifier)
void	SavepointMetadataV2.removeOperator(OperatorIdentifier identifier)