Package org.apache.flink.table.runtime.typeutils

Class MapDataSerializer

java.lang.Object
org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>
org.apache.flink.table.runtime.typeutils.MapDataSerializer
All Implemented Interfaces:
Serializable
@Internal public class MapDataSerializer extends org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>
Serializer for MapData.
See Also:

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static final class 
    MapDataSerializer.MapDataSerializerSnapshot
    TypeSerializerSnapshot for ArrayDataSerializer.

  • Constructor Summary

    Constructors
    Constructor
    Description
    MapDataSerializer(org.apache.flink.table.types.logical.LogicalType keyType, org.apache.flink.table.types.logical.LogicalType valueType)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target)
     
    org.apache.flink.table.data.MapData
    copy(org.apache.flink.table.data.MapData from)
    NOTE: Map should be a HashMap, when we insert the key/value pairs of the TreeMap into a HashMap, problems maybe occur.
    org.apache.flink.table.data.MapData
    copy(org.apache.flink.table.data.MapData from, org.apache.flink.table.data.MapData reuse)
     
    org.apache.flink.table.data.MapData
    createInstance()
     
    org.apache.flink.table.data.MapData
    deserialize(org.apache.flink.core.memory.DataInputView source)
     
    org.apache.flink.table.data.MapData
    deserialize(org.apache.flink.table.data.MapData reuse, org.apache.flink.core.memory.DataInputView source)
     
    org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>
    duplicate()
     
    boolean
    equals(Object o)
     
    org.apache.flink.api.common.typeutils.TypeSerializer
    getKeySerializer()
     
    int
    getLength()
     
    org.apache.flink.api.common.typeutils.TypeSerializer
    getValueSerializer()
     
    int
    hashCode()
     
    boolean
    isImmutableType()
     
    void
    serialize(org.apache.flink.table.data.MapData record, org.apache.flink.core.memory.DataOutputView target)
     
    org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<org.apache.flink.table.data.MapData>
    snapshotConfiguration()
     
    org.apache.flink.table.data.binary.BinaryMapData
    toBinaryMap(org.apache.flink.table.data.MapData from)
     

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • MapDataSerializer

      public MapDataSerializer(org.apache.flink.table.types.logical.LogicalType keyType, org.apache.flink.table.types.logical.LogicalType valueType)

  • Method Details

    • isImmutableType

      public boolean isImmutableType()
      Specified by:
      isImmutableType in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>

    • duplicate

      public org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData> duplicate()
      Specified by:
      duplicate in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>

    • createInstance

      public org.apache.flink.table.data.MapData createInstance()
      Specified by:
      createInstance in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>

    • copy

      public org.apache.flink.table.data.MapData copy(org.apache.flink.table.data.MapData from)
      NOTE: Map should be a HashMap, when we insert the key/value pairs of the TreeMap into a HashMap, problems maybe occur.
      Specified by:
      copy in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>

    • copy

      public org.apache.flink.table.data.MapData copy(org.apache.flink.table.data.MapData from, org.apache.flink.table.data.MapData reuse)
      Specified by:
      copy in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>

    • getLength

      public int getLength()
      Specified by:
      getLength in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>

    • serialize

      public void serialize(org.apache.flink.table.data.MapData record, org.apache.flink.core.memory.DataOutputView target) throws IOException
      Specified by:
      serialize in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>
      Throws:
      IOException

    • toBinaryMap

      public org.apache.flink.table.data.binary.BinaryMapData toBinaryMap(org.apache.flink.table.data.MapData from)

    • deserialize

      public org.apache.flink.table.data.MapData deserialize(org.apache.flink.core.memory.DataInputView source) throws IOException
      Specified by:
      deserialize in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>
      Throws:
      IOException

    • deserialize

      public org.apache.flink.table.data.MapData deserialize(org.apache.flink.table.data.MapData reuse, org.apache.flink.core.memory.DataInputView source) throws IOException
      Specified by:
      deserialize in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>
      Throws:
      IOException

    • copy

      public void copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target) throws IOException
      Specified by:
      copy in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>
      Throws:
      IOException

    • equals

      public boolean equals(Object o)
      Specified by:
      equals in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>

    • hashCode

      public int hashCode()
      Specified by:
      hashCode in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>

    • getKeySerializer

      @VisibleForTesting public org.apache.flink.api.common.typeutils.TypeSerializer getKeySerializer()

    • getValueSerializer

      @VisibleForTesting public org.apache.flink.api.common.typeutils.TypeSerializer getValueSerializer()

    • snapshotConfiguration

      public org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<org.apache.flink.table.data.MapData> snapshotConfiguration()
      Specified by:
      snapshotConfiguration in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.MapData>