001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/ogcwebservices/csw/discovery/GetDomain.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
037 package org.deegree.ogcwebservices.csw.discovery;
038
039 import java.util.HashMap;
040 import java.util.Map;
041
042 import org.deegree.ogcwebservices.csw.AbstractCSWRequest;
043
044 /**
045 * The optional GetDomain operation is used to obtain runtime information about the range of values
046 * of a metadata record element or request parameter. The runtime range of values for a property or
047 * request parameter is typically much smaller than the value space for that property or parameter
048 * based on its static type definition. For example, a property or request parameter defined as a
049 * 16bit positive integer in a database may have a value space of 65535 distinct integers but the
050 * actual number of distinct values existing in the database may be much smaller.
051 * <p>
052 * This type of runtime information about the range of values of a property or request parameter is
053 * useful for generating user interfaces with meaningful pick lists or for generating query
054 * predicates that have a higher chance of actually identifying a result set.
055 * <p>
056 * It should be noted that the GetDomain operation is a "best-effort" operation. That is to say that
057 * a catalogue tries to generate useful information about the specified request parameter or
058 * property if it can. It is entirely possible that a catalogue may not be able to determine
059 * anything about the values of a property or request parameter in which case an empty response
060 * should be generated.
061 *
062 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth </a>
063 * @author <a href="mailto:tfr@users.sourceforge.net">Torsten Friebe </a>
064 * @author <a href="mailto:mschneider@lat-lon.de">Markus Schneider </a>
065 *
066 * @author last edited by: $Author: mschneider $
067 *
068 * @version 2.0, $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
069 */
070 public class GetDomain extends AbstractCSWRequest {
071
072 private static final long serialVersionUID = 1824407245510334461L;
073
074 /**
075 *
076 * @param map
077 * @return the new instance
078 */
079 public static GetDomain create( Map<String, String> map ) {
080 return new GetDomain( map.get( "ID" ), map.get( "VERSION" ), null );
081 }
082
083 /**
084 * @param version
085 * @param id
086 * @param vendorSpecificParameter
087 */
088 GetDomain( String id, String version, HashMap<String, String> vendorSpecificParameter ) {
089 super( version, id, vendorSpecificParameter );
090 }
091
092 /**
093 * Unordered list of names of requested properties, from the information model that the
094 * catalogue is using
095 * <p>
096 * Zero or one; (Conditional)Include when ParameterName not included
097 *
098 * @return null
099 */
100 public String[] getPropertyNames() {
101 return null;
102 }
103
104 /**
105 * Unordered list of names of requested parameters, of the form OperationName. ParameterName
106 * <p>
107 * Zero or one; (Conditional)Include when PropertyName not included
108 *
109 * @return null
110 */
111 public String[] ParameterNames() {
112 return null;
113 }
114
115 }