appl/data/FactoryLoader.java

package appl.data;

import schmitzm.data.WritableGrid;
import appl.util.RasterMetaData;
import edu.bonn.xulu.plugin.io.grid.WritableGridFactory;

/**
 * This is an implementation of a loader class which loads data with a
 * {@link WritableGridFactory}. It is used for Late Loading.
 * 
 * @author Dominik Appl
 * @see WritableGridLLProxy
 */
public class FactoryLoader implements DataLoader {

        private WritableGridFactory fac;

        private RasterMetaData metaData;

        private FactoryLoader() {
        }

        /**
         * @param factory
         *            the factory which is used for instantiation
         * @param metaData
         *            the meta data is required for grid instantiation
         */
        public FactoryLoader(WritableGridFactory factory, RasterMetaData metaData) {
                fac = factory;
                this.metaData = metaData;
        }

        /*
         * (non-Javadoc)
         * 
         * @see appl.data.DataLoader#load()
         */
        public WritableGrid load() {
                return fac.newInstance(metaData.getDataType(), metaData.getWidth(),
                                metaData.getHeight(), metaData.getMinX(), metaData.getMinY(),
                                metaData.getX(), metaData.getY(), metaData.getRealWidth(),
                                metaData.getRealHeight(), metaData
                                                .getCoordinateReferenceSystem());
        }

        /*
         * (non-Javadoc)
         * 
         * @see appl.data.DataLoader#getLoadInfo()
         */
        public String getLoadInfo() {
                return "FactoryLoader|" + fac + "|" + metaData;
        }

}
1	mojays	2	package appl.data;
2
3			import schmitzm.data.WritableGrid;
4			import appl.util.RasterMetaData;
5			import edu.bonn.xulu.plugin.io.grid.WritableGridFactory;
6
7			/**
8			* This is an implementation of a loader class which loads data with a
9			* {@link WritableGridFactory}. It is used for Late Loading.
10			*
11			* @author Dominik Appl
12			* @see WritableGridLLProxy
13			*/
14			public class FactoryLoader implements DataLoader {
15
16			private WritableGridFactory fac;
17
18			private RasterMetaData metaData;
19
20			private FactoryLoader() {
21			}
22
23			/**
24			* @param factory
25			* the factory which is used for instantiation
26			* @param metaData
27			* the meta data is required for grid instantiation
28			*/
29			public FactoryLoader(WritableGridFactory factory, RasterMetaData metaData) {
30			fac = factory;
31			this.metaData = metaData;
32			}
33
34			/*
35			* (non-Javadoc)
36			*
37			* @see appl.data.DataLoader#load()
38			*/
39			public WritableGrid load() {
40			return fac.newInstance(metaData.getDataType(), metaData.getWidth(),
41			metaData.getHeight(), metaData.getMinX(), metaData.getMinY(),
42			metaData.getX(), metaData.getY(), metaData.getRealWidth(),
43			metaData.getRealHeight(), metaData
44			.getCoordinateReferenceSystem());
45			}
46
47			/*
48			* (non-Javadoc)
49			*
50			* @see appl.data.DataLoader#getLoadInfo()
51			*/
52			public String getLoadInfo() {
53			return "FactoryLoader\|" + fac + "\|" + metaData;
54			}
55
56			}