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package gnu.dtools.ritopt;
/**
* CharOption.java
*
* Version:
* $Id: CharOption.java 322 2004-05-20 20:45:47Z mortenalver $
*/
/**
* This class is used for options with character values.
*
* <hr>
*
* <pre>
* Copyright (C) Damian Ryan Eads, 2001. All Rights Reserved.
*
* ritopt 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.
* ritopt 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 ritopt; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* </pre>
*
* @author Damian Eads
*/
public class CharOption extends Option {
/**
* The value of this character option.
*/
private char value;
/**
* Constructs a character option that is set to the space character.
*/
public CharOption() {
this( ' ' );
}
/**
* Constructs a character option by copying the character option passed.
*
* @param op The character option to copy.
*/
public CharOption( CharOption op ) {
super( op );
op.value = op.getValue();
}
/**
* Constructs a character option initialized with the value passed.
*
* @param value The initial value of this character option.
*/
public CharOption( char value ) {
this( value, null );
}
/**
* Constructs a character option initialized with the value and
* long option passed.
*
* @param value The initial value of this character option.
* @param longOption The long option associated with character option.
*/
public CharOption( char value, String longOption ) {
this( value, longOption, '\0' );
}
/**
* Constructs a character option initialized with the value and
* short option passed.
*
* @param value The initial value of this character option.
* @param shortOption The short option associated with this option.
*/
public CharOption( char value, char shortOption ) {
this( value, null, shortOption );
}
/**
* Constructs a character option initialized with the value, short
* and long option passed.
*
* @param shortOption The short option associated with this option.
* @param longOption The long option associated with this option.
* @param value The initial value of this character option.
*/
public CharOption( char value, String longOption, char shortOption ) {
super( longOption, shortOption );
this.value = value;
}
/**
* Return the value as an object.
*
* @return This value as an option.
*/
public Object getObject() {
return new Character( value );
}
/**
* Modify this option based on a string representation.
*
* @param value String representation of the object.
* @exception OptionModificationException Thrown if an error occurs
* during modification of an option.
*/
public void modify( String value ) throws OptionModificationException {
this.value = ( value.length() > 0 ) ? value.charAt( 0 ) : ' ';
}
/**
* Modify this option based on a string representation.
*
* @param value String representation of the object.
* @exception OptionModificationException Thrown if an error occurs
* during modification of an option.
*/
public void setValue( String value ) throws OptionModificationException {
modify( value );
}
/**
* Modify this option using a character value.
*
* @param value A character value.
*/
public void setValue( char value ) {
this.value = value;
}
/**
* Return this option as a character.
*
* @return This option as a character.
*/
public char getValue() {
return value;
}
/**
* Return this option as a string.
*
* @return This option as a string.
*/
public String getStringValue() {
return "" + value;
}
/**
* Returns the type name of this option. For a ByteOption, "BYTE"
* is returned.
*
* @return The type name of this option.
*/
public String getTypeName() {
return "CHAR";
}
/**
* Returns a string representation of this object.
*
* @return A string representation of this object.
*/
public String toString() {
return getStringValue();
}
} /** CharOption */
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