Source Code Cross Referenced for GeoResourceInfo.java in  » GIS » GeoTools-2.4.1 » org » geotools » catalog » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.catalog 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *    GeoTools - OpenSource mapping toolkit
003:         *    http://geotools.org
004:         *    (C) 2005-2006, GeoTools Project Managment Committee (PMC)
005:         *    (C) 2005, Refractions Research Inc.
006:         *
007:         *    This library is free software; you can redistribute it and/or
008:         *    modify it under the terms of the GNU Lesser General Public
009:         *    License as published by the Free Software Foundation;
010:         *    version 2.1 of the License.
011:         *
012:         *    This library is distributed in the hope that it will be useful,
013:         *    but WITHOUT ANY WARRANTY; without even the implied warranty of
014:         *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015:         *    Lesser General Public License for more details.
016:         */
017:        package org.geotools.catalog;
018:
019:        import java.net.URI;
020:        import javax.swing.Icon;
021:        import com.vividsolutions.jts.geom.Envelope;
022:        import org.opengis.referencing.crs.CoordinateReferenceSystem;
023:
024:        /**
025:         * Represents a bean style metadata accessor for metadata about a geoResource.
026:         * <p>
027:         * The methods within this class must be non-blocking. This class, and sub-classes represent cached
028:         * versions of the metadata about a particular service.
029:         * </p>
030:         * <p>
031:         * Much of this interface is based on Dublin Core and the RDF application profile.
032:         * </p>
033:         * <p>
034:         * Any changes to this content will be communicate by an event by the assocaited GeoResource.
035:         * </p>
036:         *
037:         * @author David Zwiers, Refractions Research
038:         * @author Justin Deoliveira, The Open Planning Project
039:         * @since 0.6
040:         * @source $URL: http://svn.geotools.org/geotools/tags/2.4.1/modules/library/api/src/main/java/org/geotools/catalog/GeoResourceInfo.java $
041:         */
042:        public interface GeoResourceInfo {
043:            /**
044:             * Returns the resource's title
045:             *
046:             */
047:            String getTitle();
048:
049:            /**
050:             * Returns the keywords assocaited with this resource
051:             * <p>
052:             * Known Mappings:
053:             * <ul>
054:             * <li> Maps to Dublin Core's Subject element
055:             * </ul>
056:             * </p>
057:             *
058:             * @return Keywords for use with search, or <code>null</code> unavailable.
059:             */
060:            String[] getKeywords();
061:
062:            /**
063:             * Returns the resource's description.
064:             * <p>
065:             * Known Mappings:
066:             * <ul>
067:             * <li>WFS GetCapabilities description
068:             * <li>WMS GetCapabilities description
069:             * </ul>
070:             * </p>
071:             *
072:             * @return description of resource, or <code>null</code> if unavailable
073:             */
074:            String getDescription();
075:
076:            /**
077:             * Returns the xml schema namespace for this resource type.
078:             * <p>
079:             * Known Mappings:
080:             * <ul>
081:             * <li>Dublin Code Format element
082:             * </ul>
083:             * </p>
084:             *
085:             * @return namespace, used with getName() to identify resource
086:             */
087:            URI getSchema();
088:
089:            /**
090:             * Returns the name of the data ... such as the typeName or LayerName.
091:             * <p>
092:             * Known Mappings:
093:             * <ul>
094:             * <li>WFS typeName
095:             * <li>Database table name
096:             * <li>WMS layer name
097:             * </ul>
098:             * </p>
099:             *
100:             * @return name of the data, used with getSchema() to identify resource
101:             */
102:            String getName();
103:
104:            /**
105:             * Base symbology (with out decorators) representing this resource.
106:             * <p>
107:             * The Icon returned should conform the the Eclipse User Interface Guidelines (16x16
108:             * image with a 16x15 glyph centered).
109:             * </p>
110:             * <p>
111:             * This plug-in provides default based on resource type:
112:             *
113:             * <pre><code>
114:             *  &lt;b&gt;return&lt;/b&gt; ISharedImages.getImagesDescriptor( IGeoResoruce );
115:             * </code></pre>
116:             *
117:             * <ul>
118:             * <p>
119:             * Any LabelProvider should use the default image, a label decorator should be used to pick up
120:             * these images in a separate thread. This allows resources like WMS to make blocking request of
121:             * an external service.
122:             * </p>
123:             *
124:             * @return Icon symbolizing this resource
125:             */
126:            Icon getIcon();
127:
128:            /**
129:             * Returns the BBox of the resource if one exists, The null envelope otherwise.
130:             * <p>
131:             * The bounds are returned in (ie should be reprojected to) Lat Long:
132:             * <ul>
133:             * <li>DefaultGeographicCRS.WGS84
134:             * <li>EPSG:4369 (LatLong NAD83)
135:             * <li>ESPG 4326 (another LatLong)
136:             * </ul>
137:             * </p>
138:             * <p>
139:             * Known Mappings:
140:             * <ul>
141:             * <li>1st part of the Dublin Core Coverage
142:             * </ul>
143:             * </p>
144:             * <p>
145:             * </p>
146:             *
147:             * @return Lat Long bounding box of the resource
148:             */
149:            Envelope getBounds();
150:
151:            /**
152:             * Returns the CRS of the resource if one exists, null otherwise.
153:             * <p>
154:             * Known Mappings:
155:             * <ul>
156:             * <li>2nd part of the Dublin Core Coverage
157:             * </ul>
158:             * </p>
159:             *
160:             * @return CRS of the resource, or <code>null</code> if unknown.
161:             */
162:            CoordinateReferenceSystem getCRS();
163:        }
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