/*
* Copyright (C) 2004-2011
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.kohsuke.rngom.binary;
import org.kohsuke.rngom.binary.visitor.PatternFunction;
import org.kohsuke.rngom.binary.visitor.PatternVisitor;
public class EmptyPattern extends Pattern {
EmptyPattern() {
super(true, EMPTY_CONTENT_TYPE, EMPTY_HASH_CODE);
}
boolean samePattern(Pattern other) {
return other instanceof EmptyPattern;
}
public void accept(PatternVisitor visitor) {
visitor.visitEmpty();
}
public Object apply(PatternFunction f) {
return f.caseEmpty(this);
}
@Override
void checkRestrictions(int context, DuplicateAttributeDetector dad, Alphabet alpha)
throws RestrictionViolationException {
switch (context) {
case DATA_EXCEPT_CONTEXT:
throw new RestrictionViolationException("data_except_contains_empty");
case START_CONTEXT:
throw new RestrictionViolationException("start_contains_empty");
}
}
}