Package org.apache.beam.runners.spark.util

Class CachedSideInputReader

  • All Implemented Interfaces:
    org.apache.beam.runners.core.SideInputReader
    public class CachedSideInputReader
extends java.lang.Object
implements org.apache.beam.runners.core.SideInputReader
    SideInputReader that caches materialized views.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      <T> boolean contains​(org.apache.beam.sdk.values.PCollectionView<T> view)  
      <T> @Nullable T get​(org.apache.beam.sdk.values.PCollectionView<T> view, org.apache.beam.sdk.transforms.windowing.BoundedWindow window)  
      boolean isEmpty()  
      static CachedSideInputReader of​(org.apache.beam.runners.core.SideInputReader delegate)
      Create a new cached SideInputReader.

      • Methods inherited from class java.lang.Object

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

    • Method Detail

      • of

        public static CachedSideInputReader of​(org.apache.beam.runners.core.SideInputReader delegate)
        Create a new cached SideInputReader.
        Parameters:
        delegate - wrapped reader
        Returns:
        cached reader

      • get

        public <T> @Nullable T get​(org.apache.beam.sdk.values.PCollectionView<T> view,
                           org.apache.beam.sdk.transforms.windowing.BoundedWindow window)
        Specified by:
        get in interface org.apache.beam.runners.core.SideInputReader

      • contains

        public <T> boolean contains​(org.apache.beam.sdk.values.PCollectionView<T> view)
        Specified by:
        contains in interface org.apache.beam.runners.core.SideInputReader

      • isEmpty

        public boolean isEmpty()
        Specified by:
        isEmpty in interface org.apache.beam.runners.core.SideInputReader