Package org.apache.beam.sdk.io

Class TextIO.ReadFiles

java.lang.Object
org.apache.beam.sdk.transforms.PTransform<PCollection<FileIO.ReadableFile>,PCollection<String>>
org.apache.beam.sdk.io.TextIO.ReadFiles
All Implemented Interfaces:
Serializable, HasDisplayData
Enclosing class:
TextIO
public abstract static class TextIO.ReadFiles extends PTransform<PCollection<FileIO.ReadableFile>,PCollection<String>>
Implementation of TextIO.readFiles().
See Also:

  • Constructor Details

    • ReadFiles

      public ReadFiles()

  • Method Details

    • withDelimiter

      public TextIO.ReadFiles withDelimiter(byte[] delimiter)
      Like TextIO.Read.withDelimiter(byte[]).

    • withSkipHeaderLines

      public TextIO.ReadFiles withSkipHeaderLines(int skipHeaderLines)

    • expand

      public PCollection<String> expand(PCollection<FileIO.ReadableFile> input)
      Description copied from class: PTransform
      Override this method to specify how this PTransform should be expanded on the given InputT.

      NOTE: This method should not be called directly. Instead apply the PTransform should be applied to the InputT using the apply method.

      Composite transforms, which are defined in terms of other transforms, should return the output of one of the composed transforms. Non-composite transforms, which do not apply any transforms internally, should return a new unbound output and register evaluators (via backend-specific registration methods).

      Specified by:
      expand in class PTransform<PCollection<FileIO.ReadableFile>,PCollection<String>>

    • populateDisplayData

      public void populateDisplayData(DisplayData.Builder builder)
      Description copied from class: PTransform
      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 PTransform<PCollection<FileIO.ReadableFile>,PCollection<String>>
      Parameters:
      builder - The builder to populate with display data.
      See Also: