/**
* Copyright (C) 2002-2012 The FreeCol Team
*
* This file is part of FreeCol.
*
* FreeCol 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.
*
* FreeCol 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 FreeCol. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.freecol.common.option;
import java.util.logging.Logger;
import org.freecolandroid.xml.stream.XMLStreamException;
import org.freecolandroid.xml.stream.XMLStreamWriter;
import net.sf.freecol.common.model.Specification;
/**
* Represents an option that can be either <i>true</i>
* or <i>false</i>.
*/
public class BooleanOption extends AbstractOption<Boolean> {
@SuppressWarnings("unused")
private static Logger logger = Logger.getLogger(BooleanOption.class.getName());
private boolean value;
/**
* Creates a new <code>BooleanOption</code>.
*
* @param id The identifier for this option. This is used when the object
* should be found in an {@link OptionGroup}.
*/
public BooleanOption(String id) {
super(id);
}
/**
* Creates a new <code>BooleanOption</code>.
*
* @param specification The specification this option belongs
* to. May be null.
*/
public BooleanOption(Specification specification) {
super(specification);
}
public BooleanOption clone() {
BooleanOption result = new BooleanOption(getId());
result.setValues(this);
return result;
}
/**
* Gets the current value of this <code>BooleanOption</code>.
* @return The value.
*/
public Boolean getValue() {
return value;
}
/**
* Sets the current value of this <code>BooleanOption</code>.
* @param value The value.
*/
public void setValue(Boolean value) {
final boolean oldValue = this.value;
this.value = value;
if (value != oldValue && isDefined) {
firePropertyChange(VALUE_TAG, Boolean.valueOf(oldValue), Boolean.valueOf(value));
}
isDefined = true;
}
/**
* Sets the value of this Option from the given string
* representation. Both parameters must not be null at the same
* time.
*
* @param valueString the string representation of the value of
* this Option
* @param defaultValueString the string representation of the
* default value of this Option
*/
protected void setValue(String valueString, String defaultValueString) {
setValue(Boolean.parseBoolean((valueString != null) ? valueString : defaultValueString));
}
/**
* This method writes an XML-representation of this object to
* the given stream.
*
* @param out The target stream.
* @throws XMLStreamException if there are any problems writing
* to the stream.
*/
protected void toXMLImpl(XMLStreamWriter out) throws XMLStreamException {
super.toXML(out, getXMLElementTagName());
}
/**
* Write the attributes of this object to a stream.
*
* @param out The target stream.
* @throws XMLStreamException if there are any problems writing to
* the stream.
*/
@Override
protected void writeAttributes(XMLStreamWriter out)
throws XMLStreamException {
super.writeAttributes(out);
out.writeAttribute(VALUE_TAG, Boolean.toString(value));
}
/**
* Gets the tag name of the root element representing this object.
*
* @return "booleanOption".
*/
public static String getXMLElementTagName() {
return "booleanOption";
}
}