Package com.arjuna.ats.internal.txoj.abstractrecords

Class LockRecord

java.lang.Object
com.arjuna.ats.arjuna.StateManager
com.arjuna.ats.arjuna.coordinator.AbstractRecord
com.arjuna.ats.internal.txoj.abstractrecords.LockRecord
Direct Known Subclasses:
CadaverLockRecord
public class LockRecord extends AbstractRecord

  • Field Details

  • Constructor Details

  • Method Details

    • typeIs

      public int typeIs()
      Specified by:
      typeIs in class AbstractRecord
      Returns:
      RecordType value.

    • value

      public Object value()
      Description copied from class: AbstractRecord
      If this abstract record caused a heuristic then it should return an object which implements HeuristicInformation
      Specified by:
      value in class AbstractRecord
      Returns:
      Object to be used to order.

    • setValue

      public void setValue(Object o)
      Specified by:
      setValue in class AbstractRecord

    • nestedAbort

      public int nestedAbort()
      Description copied from class: AbstractRecord
      A rollback of a nested transaction has occurred.
      Specified by:
      nestedAbort in class AbstractRecord
      Returns:
      TwoPhaseOutcome to indicate success/failure.
      See Also:

    • nestedCommit

      public int nestedCommit()
      Description copied from class: AbstractRecord
      A commit of a nested transaction has occurred.
      Specified by:
      nestedCommit in class AbstractRecord
      Returns:
      TwoPhaseOutcome to indicate success/failure.
      See Also:

    • nestedPrepare

      public int nestedPrepare()
      Description copied from class: AbstractRecord
      A prepare for a nested transaction has occurred.
      Specified by:
      nestedPrepare in class AbstractRecord
      Returns:
      TwoPhaseOutcome to indicate success/failure.
      See Also:

    • topLevelAbort

      public int topLevelAbort()
      Description copied from class: AbstractRecord
      A rollback of a top-level transaction has occurred.
      Specified by:
      topLevelAbort in class AbstractRecord
      Returns:
      TwoPhaseOutcome to indicate success/failure.
      See Also:

    • topLevelCommit

      public int topLevelCommit()
      Description copied from class: AbstractRecord
      A commit of a top-level transaction has occurred.
      Specified by:
      topLevelCommit in class AbstractRecord
      Returns:
      TwoPhaseOutcome to indicate success/failure.
      See Also:

    • topLevelPrepare

      public int topLevelPrepare()
      Description copied from class: AbstractRecord
      A prepare for a top-level transaction has occurred.
      Specified by:
      topLevelPrepare in class AbstractRecord
      Returns:
      TwoPhaseOutcome to indicate success/failure.
      See Also:

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • print

      public void print(PrintWriter strm)
      Description copied from class: AbstractRecord
      Write information about this specific instance to the specified stream.
      Overrides:
      print in class AbstractRecord
      Parameters:
      strm - the stream on which to output.

    • restore_state

      public boolean restore_state(InputObjectState o, int t)
      Description copied from class: AbstractRecord
      During recovery, the transaction log is given to the recovery system and it will recreate a transaction instance to perform necessary recovery actions. This transaction will recreate the intentions list and give each recreated AbstractRecord the state that that was saved during transaction persistence. The base class will restore information that it needs from the log. Data items must be unpacked in the same order that they were packed.
      Overrides:
      restore_state in class AbstractRecord
      Returns:
      true if successful, false otherwise.

    • save_state

      public boolean save_state(OutputObjectState o, int t)
      Description copied from class: AbstractRecord
      When the transaction is required to make the intentions list persistent, it scans the list and asks each record whether or not it requires state to be saved (by calling doSave). If the answer is yes, then save_state is called and the record instance must save enough information to enable it to be restored from that state later. The basic AbstractRecord save_state will save common data that is required by the base class during recovery. If a derived class calls super.save_state then it must be called before packing any other data item.
      Overrides:
      save_state in class AbstractRecord
      Returns:
      true if successful, false otherwise.

    • type

      public String type()
      Description copied from class: AbstractRecord
      Re-implementation of abstract methods inherited from base class.
      Overrides:
      type in class AbstractRecord

    • isReadOnly

      public final boolean isReadOnly()

    • lockType

      public final String lockType()

    • merge

      public void merge(AbstractRecord a)
      Description copied from class: AbstractRecord
      Merge the current record with the one presented.
      Specified by:
      merge in class AbstractRecord
      Parameters:
      a - the record with which to merge.

    • alter

      public void alter(AbstractRecord a)
      Description copied from class: AbstractRecord
      Alter the current record with the one presented.
      Specified by:
      alter in class AbstractRecord
      Parameters:
      a - the record with which to alter.

    • shouldAdd

      public boolean shouldAdd(AbstractRecord a)
      Description copied from class: AbstractRecord
      Should we add the record presented to the intentions list?
      Specified by:
      shouldAdd in class AbstractRecord
      Parameters:
      a - The record to try to add.
      Returns:
      true if the record should be added, false otherwise.

    • shouldAlter

      public boolean shouldAlter(AbstractRecord a)
      Description copied from class: AbstractRecord
      Should we alter the current record with the one presented?
      Specified by:
      shouldAlter in class AbstractRecord
      Parameters:
      a - The record to try to alter.
      Returns:
      true if the record should be altered, false otherwise.

    • shouldMerge

      public boolean shouldMerge(AbstractRecord a)
      Description copied from class: AbstractRecord
      Should we merge the current record with the one presented?
      Specified by:
      shouldMerge in class AbstractRecord
      Parameters:
      a - The record to try to merge.
      Returns:
      true if the record should be merged, false otherwise.

    • shouldReplace

      public boolean shouldReplace(AbstractRecord ar)
      Description copied from class: AbstractRecord
      Should we replace the record presented with the current record?
      Specified by:
      shouldReplace in class AbstractRecord
      Parameters:
      ar - The record to try to replace.
      Returns:
      true if the record should be replaced, false otherwise.