EntityCoder (Google Cloud Dataflow SDK 1.9.1 API)

Google Cloud Dataflow SDK for Java, version 1.9.1

Warning: Dataflow SDK 1.x for Java is unsupported as of October 16, 2018. See Migrating from Dataflow SDK 1.x for Java for migration guidance.

Note: If you are using Cloud Dataflow SDK version 2.x, see the Apache Beam API reference documentation.

com.google.cloud.dataflow.sdk.coders

Class EntityCoder

• java.lang.Object
• • com.google.cloud.dataflow.sdk.coders.StandardCoder<T>
  • • com.google.cloud.dataflow.sdk.coders.DeterministicStandardCoder<T>
    • • com.google.cloud.dataflow.sdk.coders.AtomicCoder<DatastoreV1.Entity>
      • • com.google.cloud.dataflow.sdk.coders.EntityCoder

• All Implemented Interfaces:

  Coder<DatastoreV1.Entity>, Serializable

  ---

  Deprecated. 

  use ProtoCoder instead.
  
  

  @Deprecated
  public class EntityCoder
  extends AtomicCoder<DatastoreV1.Entity>

  A Coder for DatastoreV1.Entity objects based on their encoded Protocol Buffer form.

  See Also:

  Serialized Form

• • Nested Class Summary

    • Nested classes/interfaces inherited from interface com.google.cloud.dataflow.sdk.coders.Coder

      Coder.Context, Coder.NonDeterministicException

  • Method Summary

    All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods 

    Modifier and Type	Method and Description
    DatastoreV1.Entity	decode(InputStream inStream, Coder.Context context) Deprecated.  Decodes a value of type T from the given input stream in the given context.
    void	encode(DatastoreV1.Entity value, OutputStream outStream, Coder.Context context) Deprecated.  Encodes the given value of type T onto the given output stream in the given context.
    protected long	getEncodedElementByteSize(DatastoreV1.Entity value, Coder.Context context) Deprecated.  Returns the size in bytes of the encoded value using this coder.
    static EntityCoder	of() Deprecated.
    void	verifyDeterministic() Deprecated.  Throw Coder.NonDeterministicException if the coding is not deterministic.

    • Methods inherited from class com.google.cloud.dataflow.sdk.coders.AtomicCoder

      getCoderArguments, getInstanceComponents

    • Methods inherited from class com.google.cloud.dataflow.sdk.coders.StandardCoder

      asCloudObject, consistentWithEquals, equals, getAllowedEncodings, getComponents, getEncodingId, hashCode, isRegisterByteSizeObserverCheap, registerByteSizeObserver, structuralValue, toString, verifyDeterministic, verifyDeterministic

    • Methods inherited from class java.lang.Object

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

• • Method Detail

    • of

      public static EntityCoder of()

      Deprecated. 

    • encode

      public void encode(DatastoreV1.Entity value,
                         OutputStream outStream,
                         Coder.Context context)
                  throws IOException,
                         CoderException

      Deprecated. 
      Description copied from interface: Coder
      Encodes the given value of type T onto the given output stream in the given context.

      Throws:

      IOException - if writing to the OutputStream fails for some reason

      CoderException - if the value could not be encoded for some reason

    • decode

      public DatastoreV1.Entity decode(InputStream inStream,
                                       Coder.Context context)
                                throws IOException

      Deprecated. 
      Description copied from interface: Coder
      Decodes a value of type T from the given input stream in the given context. Returns the decoded value.

      Throws:

      IOException - if reading from the InputStream fails for some reason

      CoderException - if the value could not be decoded for some reason

    • getEncodedElementByteSize

      protected long getEncodedElementByteSize(DatastoreV1.Entity value,
                                               Coder.Context context)
                                        throws Exception

      Deprecated. 
      Description copied from class: StandardCoder
      Returns the size in bytes of the encoded value using this coder.

      Overrides:

      getEncodedElementByteSize in class StandardCoder<DatastoreV1.Entity>

      Throws:

      Exception

    • verifyDeterministic

      public void verifyDeterministic()
                               throws Coder.NonDeterministicException

      Deprecated. 
      Throw Coder.NonDeterministicException if the coding is not deterministic.

      In order for a Coder to be considered deterministic, the following must be true:

      • two values that compare as equal (via Object.equals() or Comparable.compareTo(), if supported) have the same encoding.
      • the Coder always produces a canonical encoding, which is the same for an instance of an object even if produced on different computers at different times.

      Specified by:

      verifyDeterministic in interface Coder<DatastoreV1.Entity>

      Overrides:

      verifyDeterministic in class DeterministicStandardCoder<DatastoreV1.Entity>

      Throws:

      NonDeterministicException - always. A Datastore kind can hold arbitrary Object instances, which makes the encoding non-deterministic.

      Coder.NonDeterministicException - if this coder is not deterministic.