Package org.apache.beam.sdk.io.gcp.spanner.changestreams.model

Class InitialPartition

  • public class InitialPartition
extends java.lang.Object
    Utility class to determine initial partition constants and methods.

    The initial partition has the artificial token defined by PARTITION_TOKEN and it has no parent tokens.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.util.HashSet<java.lang.String> PARENT_TOKENS
      The empty set representing the initial partition parent tokens.
      static java.lang.String PARTITION_TOKEN
      The token of the initial partition.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static boolean isInitialPartition​(java.lang.String partitionToken)
      Verifies if the given partition token is the initial partition.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • PARTITION_TOKEN

        public static final java.lang.String PARTITION_TOKEN
        The token of the initial partition. This is an artificial token for the Connector and it is not recognised by Cloud Spanner.
        See Also:
        Constant Field Values

      • PARENT_TOKENS

        public static final java.util.HashSet<java.lang.String> PARENT_TOKENS
        The empty set representing the initial partition parent tokens.

    • Constructor Detail

      • InitialPartition

        public InitialPartition()

    • Method Detail

      • isInitialPartition

        public static boolean isInitialPartition​(java.lang.String partitionToken)
        Verifies if the given partition token is the initial partition.
        Parameters:
        partitionToken - the partition token to be checked
        Returns:
        true if the given token is the initial partition, and false otherwise