dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/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  */
   8
   9 package org.opendaylight.mdsal.dom.broker;
  10
  11 import org.opendaylight.mdsal.dom.spi.store.DOMStoreReadWriteTransaction;
  12
  13 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  14 import org.opendaylight.mdsal.common.api.ReadFailedException;
  15 import org.opendaylight.mdsal.dom.api.DOMDataReadWriteTransaction;
  16 import com.google.common.base.Optional;
  17 import com.google.common.util.concurrent.CheckedFuture;
  18 import java.util.Map;
  19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  20 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  21
  22 /**
  23  *
  24  * Read-Write Transaction, which is composed of several {@link DOMStoreReadWriteTransaction}
  25  * transactions. Subtransaction is selected by {@link LogicalDatastoreType} type parameter in:
  26  *
  27  * <ul>
  28  * <li>{@link #read(LogicalDatastoreType, YangInstanceIdentifier)}
  29  * <li>{@link #put(LogicalDatastoreType, YangInstanceIdentifier, NormalizedNode)}
  30  * <li>{@link #delete(LogicalDatastoreType, YangInstanceIdentifier)}
  31  * <li>{@link #merge(LogicalDatastoreType, YangInstanceIdentifier, NormalizedNode)}
  32  * </ul>
  33  * {@link #submit()} will result in invocation of
  34  * {@link DOMDataCommitImplementation#submit(org.opendaylight.mdsal.dom.api.DOMDataWriteTransaction, Iterable)}
  35  * invocation with all
  36  * {@link org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort} for
  37  * underlying transactions.
  38  *
  39  */
  40 final class DOMForwardedReadWriteTransaction extends DOMForwardedWriteTransaction<DOMStoreReadWriteTransaction> implements DOMDataReadWriteTransaction {
  41     protected DOMForwardedReadWriteTransaction(final Object identifier,
  42             final Map<LogicalDatastoreType, DOMStoreReadWriteTransaction> backingTxs,
  43             final AbstractDOMForwardedTransactionFactory<?> commitImpl) {
  44         super(identifier, backingTxs, commitImpl);
  45     }
  46
  47     @Override
  48     public CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> read(
  49             final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  50         return getSubtransaction(store).read(path);
  51     }
  52
  53     @Override
  54     public CheckedFuture<Boolean, ReadFailedException> exists(
  55         final LogicalDatastoreType store,
  56         final YangInstanceIdentifier path) {
  57         return getSubtransaction(store).exists(path);
  58     }
  59 }