opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/DOMForwardedReadWriteTransaction.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */package org.opendaylight.controller.md.sal.dom.broker.impl;
   8
   9 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  10 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  11 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  12 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  13 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
  14 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
  15 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  16
  17 import com.google.common.base.Optional;
  18 import com.google.common.collect.ImmutableMap;
  19 import com.google.common.util.concurrent.ListenableFuture;
  20
  21 /**
  22  *
  23  * Read-Write Transaction, which is composed of several
  24  * {@link DOMStoreReadTransaction} transactions. Subtransaction is selected by
  25  * {@link LogicalDatastoreType} type parameter in:
  26  *
  27  * <ul>
  28  * <li>{@link #read(LogicalDatastoreType, InstanceIdentifier)}
  29  * <li>{@link #put(LogicalDatastoreType, InstanceIdentifier, NormalizedNode)}
  30  * <li>{@link #delete(LogicalDatastoreType, InstanceIdentifier)}
  31  * <li>{@link #merge(LogicalDatastoreType, InstanceIdentifier, NormalizedNode)}
  32  * </ul>
  33  * {@link #commit()} will result in invocation of
  34  * {@link DOMDataCommitImplementation#commit(org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction, Iterable)}
  35  * invocation with all {@link DOMStoreThreePhaseCommitCohort} for underlying
  36  * transactions.
  37  *
  38  */
  39 class DOMForwardedReadWriteTransaction extends DOMForwardedWriteTransaction<DOMStoreReadWriteTransaction> implements
  40         DOMDataReadWriteTransaction {
  41
  42     protected DOMForwardedReadWriteTransaction(final Object identifier,
  43             final ImmutableMap<LogicalDatastoreType, DOMStoreReadWriteTransaction> backingTxs,
  44             final DOMDataCommitImplementation commitImpl) {
  45         super(identifier, backingTxs, commitImpl);
  46     }
  47
  48     @Override
  49     public ListenableFuture<Optional<NormalizedNode<?, ?>>> read(final LogicalDatastoreType store,
  50             final InstanceIdentifier path) {
  51         return getSubtransaction(store).read(path);
  52     }
  53 }