Interface LogRecordType


  • public interface LogRecordType
    Define record types used by Logger implementations.

    NOTE: record types used by all sub-classes and packages within org.objectweb.howl should be defined here so it is easy to determine that new types are always unique and do not conflict with existing types.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static short CLOSE
      recorded by Logger to signal a clean close on the log.
      static short CTRL
      Log records generated by Logger.
      static short END_OF_LOG
      Type indicating that end of log has been reached.
      static short EOB
      Type returned by get() methods to signal end of buffer.
      static short FILE_HEADER
      Header records generated at start of every log file.
      static short MARKKEY
      Log records containing mark data.
      static short RESTART
      recorded by Logger to mark first block following a restart of the Logger.
      static short USER
      Log records generated by user.
      static short XACOMMIT
      recorded by XALogger to mark records generated by XALogger#putCommit()
      static short XACOMMITMOVED
      recorded by XALogger *after* a XACOMMIT record is moved to allow replay to remove the original XACOMMIT record from the activeTx table.
      static short XADONE
      recorded by XALogger to mark records generated by XALogger#putDone()
    • Field Detail

      • CTRL

        static final short CTRL
        Log records generated by Logger.

        must be ORed with another value to form a complete control record type.

        The first nibble contains only the CTRL flag to make it easy to see in file dumps. The remaining three nibbles contain bits that identify the specific type of control record.

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      • FILE_HEADER

        static final short FILE_HEADER
        Header records generated at start of every log file.
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      • MARKKEY

        static final short MARKKEY
        Log records containing mark data.

        Data portion of the record contains the current automark mode (true or false) and the active mark.

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      • CLOSE

        static final short CLOSE
        recorded by Logger to signal a clean close on the log.
        See Also:
        Constant Field Values
      • RESTART

        static final short RESTART
        recorded by Logger to mark first block following a restart of the Logger.
        See Also:
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      • XACOMMIT

        static final short XACOMMIT
        recorded by XALogger to mark records generated by XALogger#putCommit()
        See Also:
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      • XADONE

        static final short XADONE
        recorded by XALogger to mark records generated by XALogger#putDone()
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      • XACOMMITMOVED

        static final short XACOMMITMOVED
        recorded by XALogger *after* a XACOMMIT record is moved to allow replay to remove the original XACOMMIT record from the activeTx table.
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      • EOB

        static final short EOB
        Type returned by get() methods to signal end of buffer.

        This record type may or may not actually exist within a data buffer. A get() method should return this record type when the ByteBuffer.position() is at or beyond the used bytes for the buffer.

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      • END_OF_LOG

        static final short END_OF_LOG
        Type indicating that end of log has been reached.

        signals ReplayListener that no more records will be delivered.

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