Package org.datanucleus

Examples of org.datanucleus.ManagedConnection

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        if (puts.size() > 0)
        {
            try
            {
                ObjectManager om = sm.getObjectManager();
                ManagedConnection mconn = storeMgr.getConnection(om);
                try
                {
                    // Loop through all entries
                    Iterator iter = puts.iterator();
                    while (iter.hasNext())
                    {
                        // Add the row to the join table
                        Map.Entry entry = (Map.Entry)iter.next();
                        internalPut(sm, mconn, batched, entry.getKey(), entry.getValue(), (!iter.hasNext()));
                    }
                }
                finally
                {
                    mconn.release();
                }
            }
            catch (MappedDatastoreException e)
            {
                throw new NucleusDataStoreException(LOCALISER.msg("056016", e.getMessage()), e);
            }
        }

        // Update any changed entries
        if (updates.size() > 0)
        {
            try
            {
                ObjectManager om = sm.getObjectManager();
                ManagedConnection mconn = storeMgr.getConnection(om);
                try
                {
                    // Loop through all entries
                    Iterator iter = updates.iterator();
                    while (iter.hasNext())
                    {
                        // Update the row in the join table
                        Map.Entry entry = (Map.Entry)iter.next();
                        internalUpdate(sm, mconn, batched, entry.getKey(), entry.getValue(), !iter.hasNext());
                    }
                }
                finally
                {
                    mconn.release();
                }
            }
            catch (MappedDatastoreException mde)
            {
                throw new NucleusDataStoreException(LOCALISER.msg("056016", mde.getMessage()), mde);
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        {
            // Value changed so update the map
            try
            {
                ObjectManager om = sm.getObjectManager();
                ManagedConnection mconn = storeMgr.getConnection(om);
                try
                {
                    if (exists)
                    {
                        internalUpdate(sm, mconn, false, key, value, true);
                    }
                    else
                    {
                        internalPut(sm, mconn, false, key, value, true);
                    }
                }
                finally
                {
                    mconn.release();
                }
            }
            catch (MappedDatastoreException e)
            {
                throw new NucleusDataStoreException(LOCALISER.msg("056016", e.getMessage()), e);
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        boolean modified = false;
        ObjectManager om = sm.getObjectManager();

        try
        {
            ManagedConnection mconn = storeMgr.getConnection(om);
            try
            {
                int[] num = getSpecialization().internalAdd(sm, mconn, false, element, true, this);
                if (num[0] > 0)
                {
                    modified = true;
                }
            }
            finally
            {
                mconn.release();
            }
        }
        catch (MappedDatastoreException e)
        {
            NucleusLogger.DATASTORE.error(e);
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        {
            validateElementForWriting(sm, iter.next(), null);
        }

        ObjectManager om = sm.getObjectManager();
        ManagedConnection mconn = storeMgr.getConnection(om);
        try
        {
            // Loop through all elements to be added
            iter = elements.iterator();
            Object element = null;
            int[] returnCode = null;
            while (iter.hasNext())
            {
                element = iter.next();

                try
                {
                    returnCode = getSpecialization().internalAdd(sm, mconn, batched, element, !batched || (batched && !iter.hasNext()), this);
                }
                catch (MappedDatastoreException mde)
                {
                    exceptions.add(mde);
                    NucleusLogger.DATASTORE.error(mde);
                }
            }

            if (exceptions.size() == 0)
            {
                if (returnCode == null)
                {
                    modified = false;
                }
                else
                {
                    for (int i=0;i<returnCode.length;i++)
                    {
                        if (returnCode[i] > 0)
                        {
                            modified = true;
                        }
                    }
                }
            }
        }
        finally
        {
            mconn.release();
        }

        if (!exceptions.isEmpty())
        {
            // Throw all exceptions received as the cause of a JPOXDataStoreException so the user can see which record(s) didn't persist
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        }

        try
        {
            ObjectManager om = sm.getObjectManager();
            ManagedConnection mconn = storeMgr.getConnection(om);
            try
            {
                Object element = null;
                iter = elements.iterator();
                getSpecialization().preInternalRemove(mconn);

                while (iter.hasNext())
                {
                    element = iter.next();
                    try
                    {
                        // Process the remove
                        int[] rc = getSpecialization().internalRemove(
                            sm, mconn, batched, element, !batched || (batched && !iter.hasNext()), this);
                        if (rc != null)
                        {
                            for (int i=0;i<rc.length;i++)
                            {
                                if (rc[i] > 0)
                                {
                                    // At least one record was inserted
                                    modified = true;
                                }
                            }
                        }
                    }
                    catch (MappedDatastoreException mde)
                    {
                        mde.printStackTrace();
                        exceptions.add(mde);
                        NucleusLogger.DATASTORE.error(mde);
                    }
                }
            }
            finally
            {
                mconn.release();
            }
        }
        catch (MappedDatastoreException e)
        {
            e.printStackTrace();
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        boolean batched = allowsBatching() && length > 1;

        try
        {
            ObjectManager om = ownerSM.getObjectManager();
            ManagedConnection mconn = storeMgr.getConnection(om);
            try
            {
                getSpecialization().processBatchedWrites(mconn);

                // Loop through all elements to be added
                Object element = null;
                for (int i = 0; i < length; i++)
                {
                    element = Array.get(array, i);

                    try
                    {
                        // Add the row to the join table
                        int[] rc = getSpecialization().internalAdd(ownerSM, this, element, mconn, batched, i,
                            (i == length - 1));
                        if (rc != null)
                        {
                            for (int j = 0; j < rc.length; j++)
                            {
                                if (rc[j] > 0)
                                {
                                    // At least one record was inserted
                                    modified = true;
                                }
                            }
                        }
                    }
                    catch (MappedDatastoreException mde)
                    {
                        mde.printStackTrace();
                        exceptions.add(mde);
                        NucleusLogger.DATASTORE.error(mde);
                    }
                }
            }
            finally
            {
                mconn.release();
            }
        }
        catch (MappedDatastoreException e)
        {
            e.printStackTrace();
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        boolean modified = false;

        try
        {
            ObjectManager om = sm.getObjectManager();
            ManagedConnection mconn = storeMgr.getConnection(om);

            try
            {
                // Add a row to the join table
                int[] returnCode = getSpecialization().internalAdd(sm, this, element, mconn, false, position,
                    true);
                if (returnCode[0] > 0)
                {
                    modified = true;
                }
            }
            finally
            {
                mconn.release();
            }
        }
        catch (MappedDatastoreException e)
        {
            throw new NucleusDataStoreException(LOCALISER.msg("056009", e.getMessage()), e.getCause());
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  @Override
  public NucleusConnection getNucleusConnection(ObjectManager om) {
    ConnectionFactory cf = getOMFContext().getConnectionFactoryRegistry()
        .lookupConnectionFactory(txConnectionFactoryName);

    final ManagedConnection mc;
    final boolean enlisted;
    enlisted = om.getTransaction().isActive();
    mc = cf.getConnection(enlisted ? om : null, null); // Will throw exception if already locked

    // Lock the connection now that it is in use by the user
    mc.lock();

    Runnable closeRunnable = new Runnable() {
      public void run() {
        // Unlock the connection now that the user has finished with it
        mc.unlock();
        if (!enlisted) {
          // TODO Anything to do here?
        }
      }
    };
    return new NucleusConnectionImpl(mc.getConnection(), closeRunnable);
  }
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   * associated with the store manager, this may establish a transaction if one
   * is not currently active.  This method will return null if the connection
   * factory associated with the store manager is nontransactional
   */
  public static DatastoreTransaction getCurrentTransaction(ObjectManager om) {
    ManagedConnection mconn = om.getStoreManager().getConnection(om);
    return ((EmulatedXAResource) mconn.getXAResource()).getCurrentTransaction();
  }
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   * Note that even if nontransactional writes are enabled, if there
   * is already a connection available then setting the property is a no-op.
   */
  static KeyRegistry getKeyRegistry(ObjectManager om) {
    StoreManager storeManager = om.getStoreManager();
    ManagedConnection mconn = storeManager.getConnection(om);
    return ((EmulatedXAResource) mconn.getXAResource()).getKeyRegistry();
  }
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Related Classes of org.datanucleus.ManagedConnection

  • org.datanucleus.store.appengine.DatastoreManager
  • org.datanucleus.store.appengine.EntityUtils
  • org.datanucleus.store.appengine.KeyRegistry
  • org.datanucleus.store.appengine.PojoDatastoreBridge
  • org.datanucleus.store.appengine.query.DatastoreQuery
  • org.datanucleus.store.mapped.scostore.AbstractArrayStore
  • org.datanucleus.store.mapped.scostore.AbstractSetStore
  • org.datanucleus.store.mapped.scostore.FKListStore
  • org.datanucleus.store.mapped.scostore.JoinListStore
  • org.datanucleus.store.mapped.scostore.JoinMapStore
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