org.apache.flink.cdc.runtime.serializer

类 NestedSerializersSnapshotDelegate

java.lang.Object

org.apache.flink.cdc.runtime.serializer.NestedSerializersSnapshotDelegate

public class NestedSerializersSnapshotDelegate
extends Object

A NestedSerializersSnapshotDelegate represents the snapshots of multiple serializers that are used by an outer serializer. Examples would be tuples, where the outer serializer is the tuple format serializer, and the NestedSerializersSnapshotDelegate holds the serializers for the different tuple fields.

The NestedSerializersSnapshotDelegate does not implement the TypeSerializerSnapshot interface. It is not meant to be inherited from, but to be composed with a serializer snapshot implementation.

The NestedSerializersSnapshotDelegate has its own versioning internally, it does not couple its versioning to the versioning of the TypeSerializerSnapshot that builds on top of this class. That way, the NestedSerializersSnapshotDelegate and enclosing TypeSerializerSnapshot the can evolve their formats independently.

构造器概要

构造器

构造器和说明
NestedSerializersSnapshotDelegate(org.apache.flink.api.common.typeutils.TypeSerializer<?>... serializers) Constructor to create a snapshot for writing.

方法概要

限定符和类型	方法和说明
org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<?>[]	getNestedSerializerSnapshots() Returns the snapshots of the nested serializers.
<T> org.apache.flink.api.common.typeutils.TypeSerializer<T>	getRestoredNestedSerializer(int pos) Creates the restore serializer from the pos-th config snapshot.
org.apache.flink.api.common.typeutils.TypeSerializer<?>[]	getRestoredNestedSerializers() Produces a restore serializer from each contained serializer configuration snapshot.
static NestedSerializersSnapshotDelegate	readNestedSerializerSnapshots(org.apache.flink.core.memory.DataInputView in, ClassLoader cl) Reads the composite snapshot of all the contained serializers.
<T> org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility<T>	resolveCompatibilityWithNested(org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility<?> outerCompatibility, org.apache.flink.api.common.typeutils.TypeSerializer<?>... newNestedSerializers) 已过时。 this no method will be removed in the future. Resolving compatibility for nested serializers is now handled by CompositeTypeSerializerSnapshot.
void	writeNestedSerializerSnapshots(org.apache.flink.core.memory.DataOutputView out) Writes the composite snapshot of all the contained serializers.

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

NestedSerializersSnapshotDelegate

public NestedSerializersSnapshotDelegate(org.apache.flink.api.common.typeutils.TypeSerializer<?>... serializers)

Constructor to create a snapshot for writing.

方法详细资料

getRestoredNestedSerializers

public org.apache.flink.api.common.typeutils.TypeSerializer<?>[] getRestoredNestedSerializers()

Produces a restore serializer from each contained serializer configuration snapshot. The serializers are returned in the same order as the snapshots are stored.

getRestoredNestedSerializer

public <T> org.apache.flink.api.common.typeutils.TypeSerializer<T> getRestoredNestedSerializer(int pos)

Creates the restore serializer from the pos-th config snapshot.

getNestedSerializerSnapshots

public org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<?>[] getNestedSerializerSnapshots()

Returns the snapshots of the nested serializers.

返回:

the snapshots of the nested serializers.

resolveCompatibilityWithNested

@Deprecated
public <T> org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility<T> resolveCompatibilityWithNested(org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility<?> outerCompatibility,
                                                                                                                                 org.apache.flink.api.common.typeutils.TypeSerializer<?>... newNestedSerializers)

已过时。 this no method will be removed in the future. Resolving compatibility for nested serializers is now handled by CompositeTypeSerializerSnapshot.

Resolves the compatibility of the nested serializer snapshots with the nested serializers of the new outer serializer.

writeNestedSerializerSnapshots

public final void writeNestedSerializerSnapshots(org.apache.flink.core.memory.DataOutputView out)
                                          throws IOException

Writes the composite snapshot of all the contained serializers.

抛出:

IOException

readNestedSerializerSnapshots

public static NestedSerializersSnapshotDelegate readNestedSerializerSnapshots(org.apache.flink.core.memory.DataInputView in,
                                                                              ClassLoader cl)
                                                                       throws IOException

Reads the composite snapshot of all the contained serializers.

抛出:

IOException