/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SelectedTag.java
* Copyright (C) 1999 Len Trigg
*
*/
package weka.core;
/**
* Represents a selected value from a finite set of values, where each
* value is a Tag (i.e. has some string associated with it). Primarily
* used in schemes to select between alternative behaviours,
* associating names with the alternative behaviours.
*
* @author <a href="mailto:len@reeltwo.com">Len Trigg</a>
*/
public class SelectedTag {
/** The index of the selected tag */
protected int m_Selected;
/** The set of tags to choose from */
protected Tag [] m_Tags;
/**
* Creates a new <code>SelectedTag</code> instance.
*
* @param tagID the id of the selected tag.
* @param tags an array containing the possible valid Tags.
* @exception IllegalArgumentException if the selected tag isn't in the array
* of valid values.
*/
public SelectedTag(int tagID, Tag [] tags) {
for (int i = 0; i < tags.length; i++) {
if (tags[i].getID() == tagID) {
m_Selected = i;
m_Tags = tags;
return;
}
}
throw new IllegalArgumentException("Selected tag is not valid");
}
/** Returns true if this SelectedTag equals another object */
public boolean equals(Object o) {
if ((o == null) || !(o.getClass().equals(this.getClass()))) {
return false;
}
SelectedTag s = (SelectedTag)o;
if ((s.getTags() == m_Tags)
&& (s.getSelectedTag() == m_Tags[m_Selected])) {
return true;
} else {
return false;
}
}
/**
* Gets the selected Tag.
*
* @return the selected Tag.
*/
public Tag getSelectedTag() {
return m_Tags[m_Selected];
}
/**
* Gets the set of all valid Tags.
*
* @return an array containing the valid Tags.
*/
public Tag [] getTags() {
return m_Tags;
}
}