Examples of TransactionController

net.sf.ehcache.TransactionController
TransactionController is used to begin, commit and rollback local transactions @author Ludovic Orban
org.apache.derby.iapi.store.access.TransactionController
The TransactionController interface provides methods that an access client can use to control a transaction, which include the methods for gaining access to resources (conglomerates, scans, etc.) in the transaction controller's storage manager. TransactionControllers are obtained from an AccessFactory via the getTransaction method.
Each transaction controller is associated with a transaction context which provides error cleanup when standard exceptions are thrown anywhere in the system. The transaction context performs the following actions in response to cleanupOnError:
- If the error is an instance of StandardException that has a severity less than ExceptionSeverity.TRANSACTION_SEVERITY all resources remain unaffected.
- If the error is an instance of StandardException that has a severity equal to ExceptionSeverity.TRANSACTION_SEVERITY, then all resources are released. An attempt to use any resource obtained from this transaction controller after such an error will result in an error. The transaction controller itself remains valid, however.
- If the error is an instance of StandardException that has a severity greater than ExceptionSeverity.TRANSACTION_SEVERITY, then all resources are released and the context is popped from the stack. Attempting to use this controller or any resources obtained from it will result in an error.
Transactions are obtained from an AccessFactory. @see AccessFactory#getTransaction @see org.apache.derby.iapi.error.StandardException @see PersistentSet
org.apache.jmeter.control.TransactionController
Transaction Controller to measure transaction times There are two different modes for the controller: - generate additional total sample after nested samples (as in JMeter 2.2) - generate parent sampler containing the nested samples

Examples of org.apache.derby.iapi.store.access.TransactionController

            }
    }
      
    if (!conglomCreated)
    {
      TransactionController tc = activation.getTransactionController();


            // TODO-COLLATE, I think collation needs to get set always correctly
            // but did see what to get collate id when there was no result
            // description.  The problem comes if row holder is used to stream
            // row to temp disk, then row is read from disk using an interface
            // where store creates the DataValueDescriptor template itself, 
            // and subsquently the returned column is used for some sort of
            // comparison.  Also could be a problem is reader of tempoary 
            // table uses qualifiers, that would result in comparisons internal
            // to store.  I believe the below impl is incomplete - either
            // it should always be default, or real collate_ids should be 
            // passed in.


            // null collate_ids in createConglomerate call indicates to use all
            // default collate ids.
            int collation_ids[] = null;


            /*
            TODO-COLLATE - if we could count on resultDescription I think the
            following would work.


            if (resultDescription != null)
            {
                // init collation id info from resultDescription for create call
                collation_ids = new int[resultDescription.getColumnCount()];


                for (int i = 0; i < collation_ids.length; i++)
                {
                    collation_ids[i] = 
                        resultDescription.getColumnDescriptor(
                            i + 1).getType().getCollationType();
                }
            }
            */




      /*
      ** Create the conglomerate with the template row.
      */
      CID = 
                tc.createConglomerate(
                    "heap",
                    inputRow.getRowArray(),
                    null, //column sort order - not required for heap
                    collation_ids,
                    properties,
                    TransactionController.IS_TEMPORARY | 
                    TransactionController.IS_KEPT);


      conglomCreated = true;


      cc = tc.openConglomerate(CID, 
                                false,
                                TransactionController.OPENMODE_FORUPDATE,
                                TransactionController.MODE_TABLE,
                                TransactionController.ISOLATION_SERIALIZABLE);
      if(isUniqueStream)

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Examples of org.apache.derby.iapi.store.access.TransactionController

      baseRowLocation = 
        (RowLocation) (rlColumn).getObject();
    
      if(!uniqueIndexCreated)
      {
        TransactionController tc =
          activation.getTransactionController();
        int numKeys = 2;
        uniqueIndexRow = new DataValueDescriptor[numKeys];
        uniqueIndexRow[0] = baseRowLocation;
        uniqueIndexRow[1] = baseRowLocation;
        Properties props = makeIndexProperties(uniqueIndexRow, CID);
        uniqueIndexConglomId =
          tc.createConglomerate(
                        "BTREE",
                        uniqueIndexRow, 
                        null,  
                        null, // no collation needed for index on row locations.
                        props, 
                        (TransactionController.IS_TEMPORARY | 
                         TransactionController.IS_KEPT));


        uniqueIndex_cc = tc.openConglomerate(
                uniqueIndexConglomId, 
                false,
                TransactionController.OPENMODE_FORUPDATE,
                TransactionController.MODE_TABLE,
                TransactionController.ISOLATION_SERIALIZABLE);

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Examples of org.apache.derby.iapi.store.access.TransactionController


  private void insertToPositionIndex(int position, RowLocation rl ) throws  StandardException
  {
    if(!positionIndexCreated)
    {
      TransactionController tc = activation.getTransactionController();
      int numKeys = 2;
      position_sqllong = new SQLLongint();
      positionIndexRow = new DataValueDescriptor[numKeys];
      positionIndexRow[0] = position_sqllong;
      positionIndexRow[1] = rl;        
      Properties props = makeIndexProperties(positionIndexRow, CID);
      positionIndexConglomId =
                tc.createConglomerate(
                    "BTREE",
                    positionIndexRow, 
                    null,  
                    null, // no collation needed for index on row locations.
                    props, 
                    (TransactionController.IS_TEMPORARY | 
                     TransactionController.IS_KEPT));


      positionIndex_cc = 
                tc.openConglomerate(
                    positionIndexConglomId, 
                    false,
                    TransactionController.OPENMODE_FORUPDATE,
                    TransactionController.MODE_TABLE,
                    TransactionController.ISOLATION_SERIALIZABLE);

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Examples of org.apache.derby.iapi.store.access.TransactionController

   * @return a result set to use
   */
  public CursorResultSet getResultSet()
  {
    state = STATE_DRAIN;
    TransactionController tc = activation.getTransactionController();
    if(isUniqueStream)
    {
      return new TemporaryRowHolderResultSet(tc, rowArray,
                           resultDescription, isVirtualMemHeap,
                           true, positionIndexConglomId, this);

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Examples of org.apache.derby.iapi.store.access.TransactionController

    {
      positionIndex_cc.close();
      positionIndex_cc = null;
    }


    TransactionController tc = activation.getTransactionController();


    if (uniqueIndexCreated)
    {
      tc.dropConglomerate(uniqueIndexConglomId);
      uniqueIndexCreated = false;
    }


    if (positionIndexCreated)
    {
      tc.dropConglomerate(positionIndexConglomId);
      positionIndexCreated = false;
    }


    if (conglomCreated)
    {
      tc.dropConglomerate(CID);
      conglomCreated = false;
            CID = 0;
    } 
        else 
        {

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Examples of org.apache.derby.iapi.store.access.TransactionController

        // Extract/derive information from the table descriptor
        long[] conglomerateNumber = new long[cds.length];
        ExecIndexRow[] indexRow = new ExecIndexRow[cds.length];
        UUID[] objectUUID = new UUID[cds.length];


        TransactionController tc = lcc.getTransactionExecute();
        ConglomerateController heapCC =
            tc.openConglomerate(td.getHeapConglomerateId(), false,
                    0,
                    TransactionController.MODE_RECORD,
                    asBackgroundTask
                        ? TransactionController.ISOLATION_READ_UNCOMMITTED
                        : TransactionController.ISOLATION_REPEATABLE_READ
                );
        try
        {
            for (int i = 0; i < cds.length; i++)
            {
                if (!cds[i].isIndex())
                {
                    conglomerateNumber[i] = -1;
                    continue;
                }


                conglomerateNumber[i] = cds[i].getConglomerateNumber();


                objectUUID[i] = cds[i].getUUID();


                indexRow[i] =
                    cds[i].getIndexDescriptor().getNullIndexRow(
                        td.getColumnDescriptorList(),
                        heapCC.newRowLocationTemplate());
            }
        }
        finally
        {
            heapCC.close();
        }


        // [x][0] = conglomerate number, [x][1] = start time, [x][2] = stop time
        long[][] scanTimes = new long[conglomerateNumber.length][3];
        int sci = 0;
        for (int indexNumber = 0;
             indexNumber < conglomerateNumber.length;
             indexNumber++)
        {
            if (conglomerateNumber[indexNumber] == -1)
                continue;


            // Check if daemon has been disabled.
            if (asBackgroundTask) {
                if (isShuttingDown()) {
                    break;
                }
            }


            scanTimes[sci][0] = conglomerateNumber[indexNumber];
            scanTimes[sci][1] = System.currentTimeMillis();
            // Subtract one for the RowLocation added for indexes.
            int numCols = indexRow[indexNumber].nColumns() - 1;
            long[] cardinality = new long[numCols];
            KeyComparator cmp = new KeyComparator(indexRow[indexNumber]);


            /* Read uncommitted, with record locking. Actually CS store may
               not hold record locks */
            GroupFetchScanController gsc =
                tc.openGroupFetchScan(
                        conglomerateNumber[indexNumber],
                        false,  // hold
                        0,
                        TransactionController.MODE_RECORD, // locking
                        TransactionController.ISOLATION_READ_UNCOMMITTED,

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Examples of org.apache.derby.iapi.store.access.TransactionController

    private void writeUpdatedStats(LanguageConnectionContext lcc,
                                   TableDescriptor td, UUID index,
                                   long numRows, long[] cardinality,
                                   boolean asBackgroundTask)
            throws StandardException {
        TransactionController tc = lcc.getTransactionExecute();
        trace(1, "writing new stats (xid=" + tc.getTransactionIdString() + ")");
        UUID table = td.getUUID();
        DataDictionary dd = lcc.getDataDictionary();
        UUIDFactory uf = dd.getUUIDFactory();


        // Update the heap row count estimate.

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Examples of org.apache.derby.iapi.store.access.TransactionController

                        "failed to initialize index statistics updater");
                return;
            }
        }


        TransactionController tc = null;
        try {
            tc = daemonLCC.getTransactionExecute();
            trace(0, "worker thread started (xid=" +
                    tc.getTransactionIdString() + ")");


            TableDescriptor td = null;
            long start = 0;
            while (true) {
                synchronized (queue) {
                    if (daemonDisabled) {
                        // Clean the lcc and exit.
                        try {
                            tc.destroy();
                        } catch (ShutdownException se) {
                            // Ignore
                        }
                        tc = null;
                        daemonLCC = null;

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Examples of org.apache.derby.iapi.store.access.TransactionController

    try {
    Authorizer a = lcc.getAuthorizer();
    a.authorize((Activation) null, Authorizer.PROPERTY_WRITE_OP);


        // Get the current transaction controller
        TransactionController tc = lcc.getTransactionExecute();


    tc.setProperty(key, value, false);
    } catch (StandardException se) {
      throw PublicAPI.wrapStandardException(se);
    }
  }

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Examples of org.apache.derby.iapi.store.access.TransactionController


        // find the language context.
        LanguageConnectionContext lcc = ConnectionUtil.getCurrentLCC();


        // Get the current transaction controller
        TransactionController tc = lcc.getTransactionExecute();


    try {


    // find the DataDictionary
    DataDictionary dd = lcc.getDataDictionary();




    // get the SchemaDescriptor
    SchemaDescriptor sd = dd.getSchemaDescriptor(schemaName, tc, true);
    if ( !isIndex)
    {
      // get the TableDescriptor for the table
      TableDescriptor td = dd.getTableDescriptor(conglomerateName, sd);


      // Return an empty Properties if table does not exist or if it is for a view.
      if ((td == null) || td.getTableType() == TableDescriptor.VIEW_TYPE) { return new Properties(); }


      conglomerateNumber = td.getHeapConglomerateId();
    }
    else
    {
      // get the ConglomerateDescriptor for the index
      ConglomerateDescriptor cd = dd.getConglomerateDescriptor(conglomerateName, sd, false);


      // Return an empty Properties if index does not exist
      if (cd == null) { return new Properties(); }


      conglomerateNumber = cd.getConglomerateNumber();
    }


    ConglomerateController cc = tc.openConglomerate(
                conglomerateNumber,
                false,
                0, 
                TransactionController.MODE_RECORD,
                TransactionController.ISOLATION_SERIALIZABLE);


    Properties properties = tc.getUserCreateConglomPropList();
    cc.getTableProperties( properties );


    cc.close();
        return properties;

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