XmlSink.Bound (Google Cloud Dataflow SDK 1.9.1 API)

Google Cloud Dataflow SDK for Java, version 1.9.1

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

Class XmlSink.Bound<T>

• java.lang.Object
• • com.google.cloud.dataflow.sdk.io.Sink<T>
  • • com.google.cloud.dataflow.sdk.io.FileBasedSink<T>
    • • com.google.cloud.dataflow.sdk.io.XmlSink.Bound<T>

• All Implemented Interfaces:

  HasDisplayData, Serializable

  Enclosing class:

  XmlSink

  ---

  
  

  public static class XmlSink.Bound<T>
  extends FileBasedSink<T>

  A FileBasedSink that writes objects as XML elements.

  See Also:

  Serialized Form

• • Nested Class Summary

    • Nested classes/interfaces inherited from class com.google.cloud.dataflow.sdk.io.FileBasedSink

      FileBasedSink.FileBasedWriteOperation<T>, FileBasedSink.FileBasedWriter<T>, FileBasedSink.FileResult

    • Nested classes/interfaces inherited from class com.google.cloud.dataflow.sdk.io.Sink

      Sink.WriteOperation<T,WriteT>, Sink.Writer<T,WriteT>

  • Field Summary

    • Fields inherited from class com.google.cloud.dataflow.sdk.io.FileBasedSink

      baseOutputFilename, extension, fileNamingTemplate

  • Method Summary

    All Methods Instance Methods Concrete Methods 

    Modifier and Type	Method and Description
    XmlSink.XmlWriteOperation<T>	createWriteOperation(PipelineOptions options) Creates an XmlSink.XmlWriteOperation.
    <T> XmlSink.Bound<T>	ofRecordClass(Class<T> classToBind) Returns an XmlSink that writes objects of the class specified as XML elements.
    void	populateDisplayData(DisplayData.Builder builder) Register display data for the given transform or component.
    XmlSink.Bound<T>	toFilenamePrefix(String baseOutputFilename) Returns an XmlSink that writes to files with the given prefix.
    void	validate(PipelineOptions options) Validates that the root element, class to bind to a JAXB context, and filenamePrefix have been set and that the class can be bound in a JAXB context.
    XmlSink.Bound<T>	withRootElement(String rootElementName) Returns an XmlSink that writes XML files with an enclosing root element of the supplied name.

    • Methods inherited from class com.google.cloud.dataflow.sdk.io.FileBasedSink

      getBaseOutputFilename, getBaseOutputFilenameProvider

    • Methods inherited from class java.lang.Object

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

• • Method Detail

    • ofRecordClass

      public <T> XmlSink.Bound<T> ofRecordClass(Class<T> classToBind)

      Returns an XmlSink that writes objects of the class specified as XML elements.

      The specified class must be able to be used to create a JAXB context.

    • toFilenamePrefix

      public XmlSink.Bound<T> toFilenamePrefix(String baseOutputFilename)

      Returns an XmlSink that writes to files with the given prefix.

      Output files will have the name {filenamePrefix}-0000i-of-0000n.xml where n is the number of output bundles that the Dataflow service divides the output into.

    • withRootElement

      public XmlSink.Bound<T> withRootElement(String rootElementName)

      Returns an XmlSink that writes XML files with an enclosing root element of the supplied name.

    • validate

      public void validate(PipelineOptions options)

      Validates that the root element, class to bind to a JAXB context, and filenamePrefix have been set and that the class can be bound in a JAXB context.

      Overrides:

      validate in class FileBasedSink<T>

    • createWriteOperation

      public XmlSink.XmlWriteOperation<T> createWriteOperation(PipelineOptions options)

      Creates an XmlSink.XmlWriteOperation.

      Specified by:

      createWriteOperation in class FileBasedSink<T>

    • populateDisplayData

      public void populateDisplayData(DisplayData.Builder builder)

      Description copied from class: Sink
      Register display data for the given transform or component.

      populateDisplayData(DisplayData.Builder) is invoked by Pipeline runners to collect display data via DisplayData.from(HasDisplayData). Implementations may call super.populateDisplayData(builder) in order to register display data in the current namespace, but should otherwise use subcomponent.populateDisplayData(builder) to use the namespace of the subcomponent.

      By default, does not register any display data. Implementors may override this method to provide their own display data.

      Specified by:

      populateDisplayData in interface HasDisplayData

      Overrides:

      populateDisplayData in class FileBasedSink<T>

      Parameters:

      builder - The builder to populate with display data.

      See Also:

      HasDisplayData