001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/io/datastore/sql/wherebuilder/AbstractPropertyNode.java $
002 /*----------------------------------------------------------------------------
003 This file is part of deegree, http://deegree.org/
004 Copyright (C) 2001-2009 by:
005 Department of Geography, University of Bonn
006 and
007 lat/lon GmbH
008
009 This library is free software; you can redistribute it and/or modify it under
010 the terms of the GNU Lesser General Public License as published by the Free
011 Software Foundation; either version 2.1 of the License, or (at your option)
012 any later version.
013 This library is distributed in the hope that it will be useful, but WITHOUT
014 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016 details.
017 You should have received a copy of the GNU Lesser General Public License
018 along with this library; if not, write to the Free Software Foundation, Inc.,
019 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020
021 Contact information:
022
023 lat/lon GmbH
024 Aennchenstr. 19, 53177 Bonn
025 Germany
026 http://lat-lon.de/
027
028 Department of Geography, University of Bonn
029 Prof. Dr. Klaus Greve
030 Postfach 1147, 53001 Bonn
031 Germany
032 http://www.geographie.uni-bonn.de/deegree/
033
034 e-mail: info@deegree.org
035 ----------------------------------------------------------------------------*/
036 package org.deegree.io.datastore.sql.wherebuilder;
037
038 import org.deegree.io.datastore.schema.MappedPropertyType;
039 import org.deegree.io.datastore.schema.TableRelation;
040
041 /**
042 * Abstract base class for all representations of {@link MappedPropertyType}s in a {@link QueryTableTree}.
043 *
044 * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider </a>
045 * @author last edited by: $Author: mschneider $
046 *
047 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
048 */
049 abstract class AbstractPropertyNode implements PropertyNode {
050
051 private MappedPropertyType property;
052
053 private FeatureTypeNode parent;
054
055 private String[] tableAliases;
056
057 /**
058 * Creates a new <code>AbstractPropertyNode</code> instance from the given parameters.
059 *
060 * @param property
061 * the property that this node represents in the query tree
062 * @param parent
063 * the parent feature type node
064 * @param tableAliases
065 * the aliases for the tables that lead from the parent feature type node's table to the table where the
066 * property's value is stored
067 */
068 AbstractPropertyNode( MappedPropertyType property, FeatureTypeNode parent, String[] tableAliases ) {
069 this.property = property;
070 this.parent = parent;
071 this.tableAliases = tableAliases;
072 }
073
074 /**
075 * Returns the <code>MappedSimplePropertyType</code> that this node represents.
076 *
077 * @return the MappedSimplePropertyType that this node represents
078 */
079 public MappedPropertyType getProperty() {
080 return this.property;
081 }
082
083 /**
084 * Returns the parent feature type node.
085 *
086 * @return the parent feature type node
087 */
088 public FeatureTypeNode getParent() {
089 return this.parent;
090 }
091
092 /**
093 * Returns the table relations that lead from the parent feature type node's table to the table where this
094 * property's value is stored.
095 *
096 * @return the table relations that lead from the parent feature type node's table
097 */
098 public TableRelation[] getPathFromParent() {
099 return this.property.getTableRelations();
100 }
101
102 /**
103 * Returns the aliases for the target tables in the table relations.
104 *
105 * @return the aliases for the target tables
106 */
107 public String[] getTableAliases() {
108 return this.tableAliases;
109 }
110
111 /**
112 * Returns an indented string representation of the object.
113 *
114 * @return an indented string representation of the object
115 */
116 public abstract String toString( String indent );
117 }