Module org.apache.lucene.core
Package org.apache.lucene.util.packed

Class AbstractBlockPackedWriter

java.lang.Object
org.apache.lucene.util.packed.AbstractBlockPackedWriter
Direct Known Subclasses:
BlockPackedWriter, MonotonicBlockPackedWriter
abstract class AbstractBlockPackedWriter extends Object

  • Field Details

    • MIN_BLOCK_SIZE

      static final int MIN_BLOCK_SIZE
      See Also:

    • MAX_BLOCK_SIZE

      static final int MAX_BLOCK_SIZE
      See Also:

    • MIN_VALUE_EQUALS_0

      static final int MIN_VALUE_EQUALS_0
      See Also:

    • BPV_SHIFT

      static final int BPV_SHIFT
      See Also:

    • out

      protected DataOutput out

    • values

      protected final long[] values

    • blocks

      protected byte[] blocks

    • off

      protected int off

    • ord

      protected long ord

    • finished

      protected boolean finished

  • Constructor Details

    • AbstractBlockPackedWriter

      protected AbstractBlockPackedWriter(DataOutput out, int blockSize)
      Sole constructor.
      Parameters:
      blockSize - the number of values of a single block, must be a multiple of 64

  • Method Details

    • writeVLong

      static void writeVLong(DataOutput out, long i) throws IOException
      Throws:
      IOException

    • reset

      public void reset(DataOutput out)
      Reset this writer to wrap out. The block size remains unchanged.

    • checkNotFinished

      private void checkNotFinished()

    • add

      public void add(long l) throws IOException
      Append a new long.
      Throws:
      IOException

    • addBlockOfZeros

      void addBlockOfZeros() throws IOException
      Throws:
      IOException

    • finish

      public void finish() throws IOException
      Flush all buffered data to disk. This instance is not usable anymore after this method has been called until reset(DataOutput) has been called.
      Throws:
      IOException

    • ord

      public long ord()
      Return the number of values which have been added.

    • flush

      protected abstract void flush() throws IOException
      Throws:
      IOException

    • writeValues

      protected final void writeValues(int bitsRequired) throws IOException
      Throws:
      IOException