1 /** 2 * This file Copyright (c) 2003-2011 Magnolia International 3 * Ltd. (http://www.magnolia-cms.com). All rights reserved. 4 * 5 * 6 * This file is dual-licensed under both the Magnolia 7 * Network Agreement and the GNU General Public License. 8 * You may elect to use one or the other of these licenses. 9 * 10 * This file is distributed in the hope that it will be 11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the 12 * implied warranty of MERCHANTABILITY or FITNESS FOR A 13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT. 14 * Redistribution, except as permitted by whichever of the GPL 15 * or MNA you select, is prohibited. 16 * 17 * 1. For the GPL license (GPL), you can redistribute and/or 18 * modify this file under the terms of the GNU General 19 * Public License, Version 3, as published by the Free Software 20 * Foundation. You should have received a copy of the GNU 21 * General Public License, Version 3 along with this program; 22 * if not, write to the Free Software Foundation, Inc., 51 23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 24 * 25 * 2. For the Magnolia Network Agreement (MNA), this file 26 * and the accompanying materials are made available under the 27 * terms of the MNA which accompanies this distribution, and 28 * is available at http://www.magnolia-cms.com/mna.html 29 * 30 * Any modifications to this file must keep this entire header 31 * intact. 32 * 33 */ 34 package info.magnolia.cms.core.search; 35 36 import javax.jcr.Node; 37 import javax.jcr.RepositoryException; 38 import javax.jcr.query.InvalidQueryException; 39 40 41 /** 42 * Equivalent to {@link QueryManager} but using {@link Content} objects. 43 * Date: Apr 4, 2005 Time: 11:00:02 AM 44 * @author Sameer Charles 45 */ 46 47 public interface QueryManager { 48 49 /** 50 * <i>Description inherited from javax.jcr.query.QueryManager#createQuery(String, String)</i><br> 51 * Creates a new query by specifying the query <code>statement</code> itself and the <code>language</code> in 52 * which the query is stated. If the query <code>statement</code> is syntactically invalid, given the language 53 * specified, an <code>InvalidQueryException</code> is thrown. The <code>language</code> must be a string from 54 * among those returned by QueryManager.getSupportedQueryLanguages(); if it is not, then an 55 * <code>InvalidQueryException</code> is thrown. 56 * @throws InvalidQueryException if statement is invalid or language is unsupported. 57 * @throws RepositoryException if another error occurs 58 * @return A <code>Query</code> object. 59 */ 60 Query createQuery(String statement, String language) throws InvalidQueryException, RepositoryException; 61 62 /** 63 * <i>Description inherited from javax.jcr.query.QueryManager#getQuery(javax.jcr.Node)</i><br> 64 * Retrieves an existing persistent query. If <code>node</code> is not a valid persisted query (that is, a node of 65 * type <code>nt:query</code>), an <code>InvalidQueryException</code> is thrown. <p/> Persistent queries are 66 * created by first using <code>QueryManager.createQuery</code> to create a <code>Query</code> object and then 67 * calling <code>Query.save</code> to persist the query to a location in the workspace. 68 * @param node a persisted query (that is, a node of type <code>nt:query</code>). 69 * @throws InvalidQueryException If <code>node</code> is not a valid persisted query (that is, a node of type 70 * <code>nt:query</code>). 71 * @throws RepositoryException if another error occurs 72 * @return a <code>Query</code> object. 73 */ 74 Query getQuery(Node node) throws InvalidQueryException, RepositoryException; 75 76 /** 77 * <i>Description inherited from javax.jcr.query.QueryManager#getSupportedQueryLanguages()</i><br> 78 * Returns an array of strings representing all query languages supported by this repository. In level 1 this set 79 * must include the string represented by the constant {@link Query#XPATH}. If SQL is supported it must 80 * additionally include the string represented by the constant {@link Query#SQL}. An implementation may also 81 * support other languages as well. See {@link Query}. 82 * @return An string array. 83 * @throws RepositoryException if an error occurs. 84 */ 85 String[] getSupportedQueryLanguages() throws RepositoryException; 86 87 }