/**
* AnalyzerBeans
* Copyright (C) 2014 Neopost - Customer Information Management
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.eobjects.analyzer.beans.stringpattern;
import org.eobjects.analyzer.util.LabelUtils;
/**
* Token which represents a null
*/
public class NullToken implements Token {
public static final Token INSTANCE = new NullToken();
@Override
public TokenType getType() {
return TokenType.PREDEFINED;
}
@Override
public String getString() {
return LabelUtils.NULL_LABEL;
}
@Override
public char charAt(int index) {
throw new UnsupportedOperationException("Null does not have any chars");
}
@Override
public int length() {
return 0;
}
}