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 com.google.common.base.Optional;
  10 import com.google.common.util.concurrent.CheckedFuture;
  11 import java.util.Map;
  12 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  13 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  14 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  15 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  17 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  18
  19 /**
  20  *
  21  * Read-Write Transaction, which is composed of several
  22  * {@link DOMStoreReadWriteTransaction} transactions. Subtransaction is selected by
  23  * {@link LogicalDatastoreType} type parameter in:
  24  *
  25  * <ul>
  26  * <li>{@link #read(LogicalDatastoreType, YangInstanceIdentifier)}
  27  * <li>{@link #put(LogicalDatastoreType, YangInstanceIdentifier, NormalizedNode)}
  28  * <li>{@link #delete(LogicalDatastoreType, YangInstanceIdentifier)}
  29  * <li>{@link #merge(LogicalDatastoreType, YangInstanceIdentifier, NormalizedNode)}
  30  * </ul>
  31  * {@link #commit()} will result in invocation of
  32  * {@link DOMDataCommitImplementation#submit(org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction, Iterable)}
  33  * invocation with all {@link org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort} for underlying
  34  * transactions.
  35  *
  36  */
  37 final class DOMForwardedReadWriteTransaction extends DOMForwardedWriteTransaction<DOMStoreReadWriteTransaction> implements DOMDataReadWriteTransaction {
  38     protected DOMForwardedReadWriteTransaction(final Object identifier,
  39             final Map<LogicalDatastoreType, DOMStoreReadWriteTransaction> backingTxs,
  40             final AbstractDOMForwardedTransactionFactory<?> commitImpl) {
  41         super(identifier, backingTxs, commitImpl);
  42     }
  43
  44     @Override
  45     public CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> read(
  46             final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  47         return getSubtransaction(store).read(path);
  48     }
  49
  50     @Override
  51     public CheckedFuture<Boolean, ReadFailedException> exists(
  52         final LogicalDatastoreType store,
  53         final YangInstanceIdentifier path) {
  54         return getSubtransaction(store).exists(path);
  55     }
  56 }