Source Code Cross Referenced for FeatureTypeNode.java in  » GIS » deegree » org » deegree » io » datastore » sql » wherebuilder » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » deegree » org.deegree.io.datastore.sql.wherebuilder 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/trunk/src/org/deegree/io/datastore/sql/wherebuilder/FeatureTypeNode.java $
002:        /*----------------    FILE HEADER  ------------------------------------------
003:
004:         This file is part of deegree.
005:         Copyright (C) 2001-2008 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 java.util.ArrayList;
046:        import java.util.HashMap;
047:        import java.util.Iterator;
048:        import java.util.List;
049:        import java.util.Map;
050:
051:        import org.deegree.io.datastore.schema.MappedFeatureType;
052:        import org.deegree.io.datastore.schema.MappedPropertyType;
053:
054:        /**
055:         * Represents a {@link MappedFeatureType} as a node in a {@link QueryTableTree}.
056:         * 
057:         * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider </a>
058:         * @author last edited by: $Author: aschmitz $
059:         * 
060:         * @version $Revision: 10506 $, $Date: 2008-03-06 08:50:33 -0800 (Thu, 06 Mar 2008) $
061:         */
062:        class FeatureTypeNode {
063:
064:            // associated MappedFeatureType instance (contains the table name)
065:            private MappedFeatureType ft;
066:
067:            // alias (may be null)
068:            private String ftAlias;
069:
070:            // unique alias for the corresponding table
071:            private String tableAlias;
072:
073:            private Map<MappedPropertyType, List<PropertyNode>> propertyMap = new HashMap<MappedPropertyType, List<PropertyNode>>();
074:
075:            /**
076:             * Creates a new <code>FeatureTypeNode</code> from the given parameters.
077:             * 
078:             * @param ft
079:             * @param ftAlias
080:             * @param tableAlias
081:             */
082:            FeatureTypeNode(MappedFeatureType ft, String ftAlias,
083:                    String tableAlias) {
084:                this .ft = ft;
085:                this .ftAlias = ftAlias;
086:                this .tableAlias = tableAlias;
087:            }
088:
089:            /**
090:             * Returns the associated {@link MappedFeatureType}.
091:             * 
092:             * @return associated MappedFeatureType
093:             */
094:            public MappedFeatureType getFeatureType() {
095:                return this .ft;
096:            }
097:
098:            /**
099:             * Returns the alias as specified in the corresponding query.
100:             * 
101:             * @return the alias (may be null)
102:             */
103:            public String getFtAlias() {
104:                return this .ftAlias;
105:            }
106:
107:            /**
108:             * Returns the name of the associated table.
109:             * 
110:             * @return the name of the associated table
111:             */
112:            public String getTable() {
113:                return this .ft.getTable();
114:            }
115:
116:            /**
117:             * Returns the alias that uniquely identifies the table (in an SQL query).
118:             * 
119:             * @return the unique alias for the table
120:             */
121:            public String getTableAlias() {
122:                return this .tableAlias;
123:            }
124:
125:            /**
126:             * Returns all child {@link PropertyNode}s.
127:             * 
128:             * @return all child PropertyNodes
129:             */
130:            public PropertyNode[] getPropertyNodes() {
131:                List<PropertyNode> propertyNodeList = new ArrayList<PropertyNode>();
132:                Iterator<?> iter = this .propertyMap.values().iterator();
133:                while (iter.hasNext()) {
134:                    Iterator<?> iter2 = ((List) iter.next()).iterator();
135:                    while (iter2.hasNext()) {
136:                        propertyNodeList.add((PropertyNode) iter2.next());
137:                    }
138:                }
139:                return propertyNodeList
140:                        .toArray(new PropertyNode[propertyNodeList.size()]);
141:            }
142:
143:            /**
144:             * Returns the child {@link PropertyNode}s with the given type.
145:             * 
146:             * @param type
147:             *            the property type to look up
148:             * @return the child PropertyNode for the given property, may be null
149:             */
150:            public PropertyNode getPropertyNode(MappedPropertyType type) {
151:                PropertyNode propertyNode = null;
152:                List<?> propertyNodeList = this .propertyMap.get(type);
153:                if (propertyNodeList != null) {
154:                    Iterator<?> propertyNodeIter = propertyNodeList.iterator();
155:                    boolean found = false;
156:                    while (propertyNodeIter.hasNext()) {
157:                        propertyNode = (PropertyNode) propertyNodeIter.next();
158:                        if (propertyNode.getProperty() == type) {
159:                            found = true;
160:                            break;
161:                        }
162:                    }
163:                    if (!found) {
164:                        propertyNode = null;
165:                    }
166:                }
167:                return propertyNode;
168:            }
169:
170:            /**
171:             * Adds the given property node as a child.
172:             * 
173:             * @param propertyNode
174:             *            the child node to add
175:             */
176:            public void addPropertyNode(PropertyNode propertyNode) {
177:                List<PropertyNode> propertyNodeList = this .propertyMap
178:                        .get(propertyNode.getProperty());
179:                if (propertyNodeList == null) {
180:                    propertyNodeList = new ArrayList<PropertyNode>();
181:                    this .propertyMap.put(propertyNode.getProperty(),
182:                            propertyNodeList);
183:                }
184:                propertyNodeList.add(propertyNode);
185:            }
186:
187:            /**
188:             * Returns an indented string representation of the object.
189:             * 
190:             * @return an indented string representation of the object
191:             */
192:            String toString(String indent) {
193:                StringBuffer sb = new StringBuffer();
194:                sb.append(indent);
195:                sb.append("- ");
196:                sb.append(this .ft.getName());
197:                sb.append(" (FeatureTypeNode, alias: '");
198:                sb.append(this .ftAlias == null ? '-' : this .ftAlias);
199:                sb.append("', table: '");
200:                sb.append(this .ft.getTable());
201:                sb.append("', tableAlias: '");
202:                sb.append(this .tableAlias);
203:                sb.append("')\n");
204:                Iterator<?> iter = this .propertyMap.values().iterator();
205:                while (iter.hasNext()) {
206:                    List<?> propertyNodeList = (List) iter.next();
207:                    Iterator<?> iter2 = propertyNodeList.iterator();
208:                    while (iter2.hasNext()) {
209:                        PropertyNode propertyNode = (PropertyNode) iter2.next();
210:                        sb.append(propertyNode.toString(indent + "  "));
211:                    }
212:                }
213:                return sb.toString();
214:            }
215:
216:            @Override
217:            public boolean equals(Object obj) {
218:                if (obj == null || (!(obj instanceof  FeatureTypeNode))) {
219:                    return false;
220:                }
221:                FeatureTypeNode that = (FeatureTypeNode) obj;
222:                if (this .getTable().equals(that.getTable())
223:                        && this .tableAlias.equals(that.tableAlias)) {
224:                    return true;
225:                }
226:                return false;
227:            }
228:
229:            @Override
230:            public int hashCode() {
231:                return this.tableAlias.hashCode();
232:            }
233:        }
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