Package org.apache.beam.sdk.io.aws2.kinesis

Interface KinesisPartitioner.ExplicitPartitioner<T>

  • All Superinterfaces:
    KinesisPartitioner<T>, java.io.Serializable
    Enclosing interface:
    KinesisPartitioner<T>
    public static interface KinesisPartitioner.ExplicitPartitioner<T>
extends KinesisPartitioner<T>
    An explicit partitioner that always returns a Nonnull explicit hash key. The partition key is irrelevant in this case, though it cannot be null.

    • Method Detail

      • getPartitionKey

        @Nonnull
default java.lang.String getPartitionKey​(T record)
        Description copied from interface: KinesisPartitioner
        Determines which shard in the stream the record is assigned to. Partition keys are Unicode strings with a maximum length limit of 256 characters for each key. Amazon Kinesis Data Streams uses the partition key as input to a hash function that maps the partition key and associated data to a specific shard.
        Specified by:
        getPartitionKey in interface KinesisPartitioner<T>

      • getExplicitHashKey

        @Nonnull
java.lang.String getExplicitHashKey​(T record)
        Required hash value (128-bit integer) to determine explicitly the shard a record is assigned to based on the hash key range of each shard. The explicit hash key overrides the partition key hash.
        Specified by:
        getExplicitHashKey in interface KinesisPartitioner<T>