/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.filter.function;
import java.util.Set;
/**
* Explicit classification for a set of values.
*
* @author jody
*
* @source $URL$
*/
public final class ExplicitClassifier extends Classifier {
Set[] values = null; //the contents of each bin (set of objects)
public ExplicitClassifier(Set[] values) {
this.values = values;
//initialize titles
this.titles = new String[values.length];
for (int i = 0; i < titles.length; i++) {
Object[] set = values[i].toArray();
if (set.length > 0) {
StringBuffer title = new StringBuffer(set[0] == null ? "null" : set[0].toString());
for (int j = 1; j < set.length; j++) {
title.append(", ");
title.append(set[j] == null ? "null" : set[j].toString());
}
titles[i] = title.toString();
} else {
titles[i] = "";
}
}
}
public int getSize() {
return values.length;
}
/**
* Returns all the unique values for a particular slot.
*
* @param index
* @return all applicable values for a slot
*/
public Set getValues(int index) {
return values[index];
}
public int classify(Object value) {
for (int i = 0; i < values.length; i++) {
if (values[i].contains(value)) {
return i;
}
}
return -1;
}
}