Package org.apache.flink.runtime.state

Class CompositeKeySerializationUtils

java.lang.Object
org.apache.flink.runtime.state.CompositeKeySerializationUtils
public class CompositeKeySerializationUtils extends Object
Utils for RocksDB state serialization and deserialization.

  • Constructor Summary

    Constructors
    Constructor
    Description
    CompositeKeySerializationUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static int
    computeRequiredBytesInKeyGroupPrefix(int totalKeyGroupsInJob)
     
    static int
    extractKeyGroup(int keyGroupPrefixBytes, byte[] rocksDBKey)
     
    static boolean
    isAmbiguousKeyPossible(org.apache.flink.api.common.typeutils.TypeSerializer keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer namespaceSerializer)
     
    static boolean
    isSerializerTypeVariableSized(org.apache.flink.api.common.typeutils.TypeSerializer<?> serializer)
     
    static <K> K
    readKey(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.core.memory.DataInputDeserializer inputView, boolean ambiguousKeyPossible)
     
    static int
    readKeyGroup(int keyGroupPrefixBytes, org.apache.flink.core.memory.DataInputView inputView)
     
    static <N> N
    readNamespace(org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.core.memory.DataInputDeserializer inputView, boolean ambiguousKeyPossible)
     
    static void
    readVariableIntBytes(org.apache.flink.core.memory.DataInputView inputView, int value)
     
    static void
    serializeKeyGroup(int keyGroup, byte[] startKeyGroupPrefixBytes)
     
    static <K> void
    writeKey(K key, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.core.memory.DataOutputSerializer keySerializationDataOutputView, boolean ambiguousKeyPossible)
     
    static void
    writeKeyGroup(int keyGroup, int keyGroupPrefixBytes, org.apache.flink.core.memory.DataOutputView keySerializationDateDataOutputView)
     
    static <N> void
    writeNameSpace(N namespace, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.core.memory.DataOutputSerializer keySerializationDataOutputView, boolean ambiguousKeyPossible)
     
    static void
    writeVariableIntBytes(int value, org.apache.flink.core.memory.DataOutputView keySerializationDateDataOutputView)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • CompositeKeySerializationUtils

      public CompositeKeySerializationUtils()

  • Method Details

    • readKeyGroup

      public static int readKeyGroup(int keyGroupPrefixBytes, org.apache.flink.core.memory.DataInputView inputView) throws IOException
      Throws:
      IOException

    • extractKeyGroup

      public static int extractKeyGroup(int keyGroupPrefixBytes, byte[] rocksDBKey)

    • readKey

      public static <K> K readKey(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.core.memory.DataInputDeserializer inputView, boolean ambiguousKeyPossible) throws IOException
      Throws:
      IOException

    • readNamespace

      public static <N> N readNamespace(org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.core.memory.DataInputDeserializer inputView, boolean ambiguousKeyPossible) throws IOException
      Throws:
      IOException

    • writeNameSpace

      public static <N> void writeNameSpace(N namespace, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.core.memory.DataOutputSerializer keySerializationDataOutputView, boolean ambiguousKeyPossible) throws IOException
      Throws:
      IOException

    • isSerializerTypeVariableSized

      public static boolean isSerializerTypeVariableSized(@Nonnull org.apache.flink.api.common.typeutils.TypeSerializer<?> serializer)

    • isAmbiguousKeyPossible

      public static boolean isAmbiguousKeyPossible(org.apache.flink.api.common.typeutils.TypeSerializer keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer namespaceSerializer)

    • writeKeyGroup

      public static void writeKeyGroup(int keyGroup, int keyGroupPrefixBytes, org.apache.flink.core.memory.DataOutputView keySerializationDateDataOutputView) throws IOException
      Throws:
      IOException

    • writeKey

      public static <K> void writeKey(K key, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.core.memory.DataOutputSerializer keySerializationDataOutputView, boolean ambiguousKeyPossible) throws IOException
      Throws:
      IOException

    • readVariableIntBytes

      public static void readVariableIntBytes(org.apache.flink.core.memory.DataInputView inputView, int value) throws IOException
      Throws:
      IOException

    • writeVariableIntBytes

      public static void writeVariableIntBytes(int value, org.apache.flink.core.memory.DataOutputView keySerializationDateDataOutputView) throws IOException
      Throws:
      IOException

    • serializeKeyGroup

      public static void serializeKeyGroup(int keyGroup, byte[] startKeyGroupPrefixBytes)

    • computeRequiredBytesInKeyGroupPrefix

      public static int computeRequiredBytesInKeyGroupPrefix(int totalKeyGroupsInJob)