Package org.apache.cassandra.cdc

Class MicroBatchIterator

  • All Implemented Interfaces:
    java.lang.AutoCloseable, java.util.Iterator<org.apache.cassandra.cdc.msg.CdcEvent>
    public class MicroBatchIterator
extends java.lang.Object
implements java.util.Iterator<org.apache.cassandra.cdc.msg.CdcEvent>, java.lang.AutoCloseable
    Iterator for reading a single CDC microbatch. Not thread safe, MicroBatchIterator should be initialized and consumed in a single thread.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected CdcScannerBuilder builder  
      protected org.apache.cassandra.cdc.scanner.CdcStreamScanner scanner  
      protected org.apache.cassandra.bridge.TokenRange tokenRange  

    • Constructor Summary

      Constructors 
      Constructor Description
      MicroBatchIterator​(org.apache.cassandra.bridge.CdcBridge cdcBridge, int partitionId, org.apache.cassandra.bridge.TokenRange tokenRange, org.apache.cassandra.cdc.state.CdcState startState, org.apache.cassandra.cdc.api.CassandraSource cassandraSource, java.util.function.Supplier<java.util.Set<java.lang.String>> keyspaceSupplier, org.apache.cassandra.cdc.api.CdcOptions cdcOptions, org.apache.cassandra.spark.utils.AsyncExecutor asyncExecutor, CommitLogProvider commitLogProvider, org.apache.cassandra.cdc.stats.ICdcStats stats)  
      MicroBatchIterator​(org.apache.cassandra.bridge.CdcBridge cdcBridge, org.apache.cassandra.cdc.state.CdcState startState, org.apache.cassandra.cdc.api.CassandraSource cassandraSource, java.util.function.Supplier<java.util.Set<java.lang.String>> keyspaceSupplier, org.apache.cassandra.cdc.api.CdcOptions cdcOptions, org.apache.cassandra.spark.utils.AsyncExecutor asyncExecutor, CommitLogProvider commitLogProvider)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()  
      org.apache.cassandra.cdc.state.CdcState endState()  
      boolean hasNext()  
      org.apache.cassandra.cdc.msg.CdcEvent next()  

      • Methods inherited from class java.lang.Object

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

      • Methods inherited from interface java.util.Iterator

        forEachRemaining, remove

    • Field Detail

      • tokenRange

        @Nullable
protected final org.apache.cassandra.bridge.TokenRange tokenRange

      • scanner

        protected final org.apache.cassandra.cdc.scanner.CdcStreamScanner scanner

    • Constructor Detail

      • MicroBatchIterator

        public MicroBatchIterator​(org.apache.cassandra.bridge.CdcBridge cdcBridge,
                          org.apache.cassandra.cdc.state.CdcState startState,
                          org.apache.cassandra.cdc.api.CassandraSource cassandraSource,
                          java.util.function.Supplier<java.util.Set<java.lang.String>> keyspaceSupplier,
                          org.apache.cassandra.cdc.api.CdcOptions cdcOptions,
                          org.apache.cassandra.spark.utils.AsyncExecutor asyncExecutor,
                          CommitLogProvider commitLogProvider)

      • MicroBatchIterator

        public MicroBatchIterator​(org.apache.cassandra.bridge.CdcBridge cdcBridge,
                          int partitionId,
                          @Nullable
                          org.apache.cassandra.bridge.TokenRange tokenRange,
                          org.apache.cassandra.cdc.state.CdcState startState,
                          org.apache.cassandra.cdc.api.CassandraSource cassandraSource,
                          java.util.function.Supplier<java.util.Set<java.lang.String>> keyspaceSupplier,
                          org.apache.cassandra.cdc.api.CdcOptions cdcOptions,
                          org.apache.cassandra.spark.utils.AsyncExecutor asyncExecutor,
                          CommitLogProvider commitLogProvider,
                          org.apache.cassandra.cdc.stats.ICdcStats stats)
                   throws org.apache.cassandra.spark.data.partitioner.NotEnoughReplicasException
        Throws:
        org.apache.cassandra.spark.data.partitioner.NotEnoughReplicasException

    • Method Detail

      • endState

        public org.apache.cassandra.cdc.state.CdcState endState()

      • hasNext

        public boolean hasNext()
        Specified by:
        hasNext in interface java.util.Iterator<org.apache.cassandra.cdc.msg.CdcEvent>

      • next

        public org.apache.cassandra.cdc.msg.CdcEvent next()
        Specified by:
        next in interface java.util.Iterator<org.apache.cassandra.cdc.msg.CdcEvent>

      • close

        public void close()
        Specified by:
        close in interface java.lang.AutoCloseable