org.apache.flink.runtime.state.metainfo

Interface StateMetaInfoReader

All Known Implementing Classes:

LegacyStateMetaInfoReaders.OperatorBackendStateMetaInfoReaderV1

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface StateMetaInfoReader

Functional interface to read StateMetaInfoSnapshot.

Method Summary

Modifier and Type	Method and Description
StateMetaInfoSnapshot	readStateMetaInfoSnapshot(org.apache.flink.core.memory.DataInputView inputView, ClassLoader userCodeClassLoader) Reads a snapshot from the given input view.

Method Detail

readStateMetaInfoSnapshot

@Nonnull
StateMetaInfoSnapshot readStateMetaInfoSnapshot(@Nonnull
                                                         org.apache.flink.core.memory.DataInputView inputView,
                                                         @Nonnull
                                                         ClassLoader userCodeClassLoader)
                                                  throws IOException

Reads a snapshot from the given input view.

Parameters:

inputView - the input to read from.

userCodeClassLoader - user classloader to deserialize the objects in the snapshot.

Returns:

the deserialized snapshot.

Throws:

IOException - on deserialization problems.