001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/tags/2.1/src/org/deegree/io/datastore/sql/wherebuilder/AbstractPropertyNode.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2006 by:
006 EXSE, Department of Geography, University of Bonn
007 http://www.giub.uni-bonn.de/deegree/
008 lat/lon GmbH
009 http://www.lat-lon.de
010
011 This library is free software; you can redistribute it and/or
012 modify it under the terms of the GNU Lesser General Public
013 License as published by the Free Software Foundation; either
014 version 2.1 of the License, or (at your option) any later version.
015
016 This library is distributed in the hope that it will be useful,
017 but WITHOUT ANY WARRANTY; without even the implied warranty of
018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019 Lesser General Public License for more details.
020
021 You should have received a copy of the GNU Lesser General Public
022 License along with this library; if not, write to the Free Software
023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024
025 Contact:
026
027 Andreas Poth
028 lat/lon GmbH
029 Aennchenstraße 19
030 53177 Bonn
031 Germany
032 E-Mail: poth@lat-lon.de
033
034 Prof. Dr. Klaus Greve
035 Department of Geography
036 University of Bonn
037 Meckenheimer Allee 166
038 53115 Bonn
039 Germany
040 E-Mail: greve@giub.uni-bonn.de
041
042 ---------------------------------------------------------------------------*/
043 package org.deegree.io.datastore.sql.wherebuilder;
044
045 import org.deegree.io.datastore.schema.MappedPropertyType;
046 import org.deegree.io.datastore.schema.TableRelation;
047
048 /**
049 * Abstract base class for all representations of {@link MappedPropertyType}s in a
050 * {@link QueryTableTree}.
051 *
052 * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider </a>
053 * @author last edited by: $Author: mschneider $
054 *
055 * @version $Revision: 6588 $, $Date: 2007-04-11 17:31:29 +0200 (Mi, 11 Apr 2007) $
056 */
057 abstract class AbstractPropertyNode implements PropertyNode {
058
059 private MappedPropertyType property;
060
061 private FeatureTypeNode parent;
062
063 private String[] tableAliases;
064
065 /**
066 * Creates a new <code>AbstractPropertyNode</code> instance from the given parameters.
067 *
068 * @param property
069 * the property that this node represents in the query tree
070 * @param parent
071 * the parent feature type node
072 * @param tableAliases
073 * the aliases for the tables that lead from the parent feature type node's table to
074 * the table where the property's value is stored
075 */
076 AbstractPropertyNode( MappedPropertyType property, FeatureTypeNode parent, String[] tableAliases ) {
077 this.property = property;
078 this.parent = parent;
079 this.tableAliases = tableAliases;
080 }
081
082 /**
083 * Returns the <code>MappedSimplePropertyType</code> that this node represents.
084 *
085 * @return the MappedSimplePropertyType that this node represents
086 */
087 public MappedPropertyType getProperty() {
088 return this.property;
089 }
090
091 /**
092 * Returns the parent feature type node.
093 *
094 * @return the parent feature type node
095 */
096 public FeatureTypeNode getParent() {
097 return this.parent;
098 }
099
100 /**
101 * Returns the table relations that lead from the parent feature type node's table to the table
102 * where this property's value is stored.
103 *
104 * @return the table relations that lead from the parent feature type node's table
105 */
106 public TableRelation[] getPathFromParent() {
107 return this.property.getTableRelations();
108 }
109
110 /**
111 * Returns the aliases for the target tables in the table relations.
112 *
113 * @return the aliases for the target tables
114 */
115 public String[] getTableAliases() {
116 return this.tableAliases;
117 }
118
119 /**
120 * Returns an indented string representation of the object.
121 *
122 * @return an indented string representation of the object
123 */
124 public abstract String toString( String indent );
125 }