2 * Copyright (c) 2020 PANTHEON.tech, s.r.o. and others. All rights reserved.
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
8 package org.opendaylight.mdsal.binding.api;
10 import com.google.common.util.concurrent.FluentFuture;
11 import org.eclipse.jdt.annotation.NonNull;
12 import org.opendaylight.mdsal.binding.api.query.QueryExpression;
13 import org.opendaylight.mdsal.binding.api.query.QueryResult;
14 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
15 import org.opendaylight.mdsal.common.api.ReadFailedException;
16 import org.opendaylight.mdsal.common.api.TransactionDatastoreMismatchException;
17 import org.opendaylight.yangtools.yang.binding.DataObject;
20 * Query-like operations supported by {@link ReadTransaction} and {@link ReadWriteTransaction}. This interface defines
21 * the operations without a tie-in with lifecycle management.
23 public interface QueryOperations {
25 * Executes a query on the provided logical data store.
27 * @param store Logical data store from which read should occur.
28 * @param query Query to execute
29 * @return a FluentFuture containing the result of the query. The Future blocks until the operation is complete.
32 * <li>The Future returns the result of the query</li>
33 * <li>If the query execution fails, the Future will fail with a {@link ReadFailedException} or
34 * an exception derived from ReadFailedException.
37 * @throws IllegalArgumentException if the query is not supported
38 * @throws NullPointerException if any of the arguments is {@code null}
39 * @throws TransactionDatastoreMismatchException if this transaction is already bound to a different data store
41 <T extends @NonNull DataObject> @NonNull FluentFuture<QueryResult<T>> execute(@NonNull LogicalDatastoreType store,
42 @NonNull QueryExpression<T> query);