Examples of RawTransaction

org.apache.derby.iapi.store.raw.xact.RawTransaction
RawTransaction is the form of Transaction used within the raw store. This allows the break down of RawStore functionality into (at least) three modules (Transactions, Data, Log) without exposing internal information on the external interface.
The transaction will notify any Observer's just before the transaction is committed, aborted or a rollback to savepoint occurs. The argument passed to the update() method of the Observer's will be one of
- RawTransaction.COMMIT - transaction is committing
- RawTransaction.ABORT - transaction is aborting
- RawTransaction.SAVEPOINTROLLBACK - transaction is being rolled back to a savepoint
The observer's must perform a value equality check (equals()) on the update arg to see why it is being notified. @see java.util.Observer

Examples of org.apache.derby.iapi.store.raw.xact.RawTransaction

        }


    if (!allowInsert())
      return null;


    RawTransaction t = owner.getTransaction();


    // logical operations not allowed in internal transactions.
    if (undo != null) {
      t.checkLogicalOperationOk();
    }


        int recordId;
        RecordHandle handle;

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Examples of org.apache.derby.iapi.store.raw.xact.RawTransaction


    // Handle of the first portion of the chain
    RecordHandle headHandle = null;
    RecordHandle handleToUpdate = null;


    RawTransaction t = curPage.owner.getTransaction();


    for (;;) {


      if (SanityManager.DEBUG) {
        SanityManager.ASSERT(curPage.isLatched());

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Examples of org.apache.derby.iapi.store.raw.xact.RawTransaction


    // when inserting a long column startCOlumn is just used
    // as a flag. -1 means the insert is complete, != -1 indicates
    // more inserts are required.
    int startColumn = 0;
    RawTransaction t = curPage.owner.getTransaction();


    do {
      // in this loop, we do 3 things:
      // 1. get a new overflow page
      // 2. insert portion of a long column

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Examples of org.apache.derby.iapi.store.raw.xact.RawTransaction

        {
      throw StandardException.newException(
                    SQLState.DATA_CONTAINER_READ_ONLY);
        }


    RawTransaction t = owner.getTransaction();


    owner.getLockingPolicy().lockRecordForWrite(myLatch, handle);


    int slot = getSlotNumber(handle);

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Examples of org.apache.derby.iapi.store.raw.xact.RawTransaction

        }




    RecordHandle handle = getRecordHandleAtSlot(slot);


    RawTransaction t = owner.getTransaction();


    doUpdateAtSlot(t, slot, handle.getId(), row, validColumns);
    
    return handle;
  }

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Examples of org.apache.derby.iapi.store.raw.xact.RawTransaction

        {
      throw StandardException.newException(
                    SQLState.DATA_UPDATE_DELETED_RECORD);
        }


    RawTransaction t = owner.getTransaction();
    RecordHandle handle = getRecordHandleAtSlot(slot);


    owner.getActionSet().actionUpdateField(t, this, slot,
        handle.getId(), fieldId, newValue, undo);

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Examples of org.apache.derby.iapi.store.raw.xact.RawTransaction

        throw StandardException.newException(
                        SQLState.DATA_UNDELETE_RECORD);
            }
    }


    RawTransaction t = owner.getTransaction();


    // logical operations not allowed in internal transactions.
    if (undo != null) {
      t.checkLogicalOperationOk();
    }


    RecordHandle handle = getRecordHandleAtSlot(slot);


    owner.getActionSet().actionDelete(t, this, slot, handle.getId(), delete, undo);

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Examples of org.apache.derby.iapi.store.raw.xact.RawTransaction


      throw StandardException.newException(
                    SQLState.DATA_SLOT_NOT_ON_PAGE);
        }


    RawTransaction t = owner.getTransaction();


    // lock the records to be purged
    int[] recordIds = new int[numpurges];


    PageKey pageId = getPageId(); // RESOLVE: MT problem ?

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Examples of org.apache.derby.iapi.store.raw.xact.RawTransaction

                    dpage.getPageId().getContainerId());
        }


    int[] recordIds = new int[num_rows];


    RawTransaction t = owner.getTransaction();


    // lock the records to be purged and calculate total space needed
    for (int i = 0; i < num_rows; i++)
    {
      RecordHandle handle = getRecordHandleAtSlot(src_slot+i);

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Examples of org.apache.derby.iapi.store.raw.xact.RawTransaction

    @exception StandardException Standard Cloudscape policy.
  */
  public void setExclusive(BaseContainerHandle requester) 
    throws StandardException {


    RawTransaction t = requester.getTransaction();


    // In some cases latches are held until after a commit or an abort
    // (currently internal and nested top transactions.
    // If this is the case then during an abort a latch
    // request will be made for a latch that is already held.
    // We do not allow the latch to be obtained multiple times
    // because i) lock manager might assume latches are exclusive for
    // performance, ii) holding a page latched means that the page is
    // on the container handle's obervers list, if we latched it twice
    // then the paeg would have to be on the list twice, which is not supported
    // since the page has value equality. To be on the list twice reference
    // equality would be required, which would mean pushing a ReferenceObservable
    // object for every latch; iii) other unknown reasons :-)
    synchronized (this)
    {
      // need synchronized block because owner may be set to null in the
      // middle if another thread is in the process of unlatching the
      // page 
      if ((owner != null) && (t == owner.getTransaction())) {


        if (t.inAbort()) {
          //
          nestedLatch++;
          return;
        }
      }
      // just deadlock out ...
    }




    // Latch the page, owner is set through the Lockable call backs.
    t.getLockFactory().latchObject(
            t, this, requester, C_LockFactory.WAIT_FOREVER);    


        // latch granted, but cleaner may "own" the page.  


    if (SanityManager.DEBUG) {

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