com.sun.tools.xjc.reader.dtd.Occurence Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.tools.xjc.reader.dtd;
import java.util.List;
import com.sun.xml.dtdparser.DTDEventListener;
/**
* @author Kohsuke Kawaguchi
*/
final class Occurence extends Term {
final Term term;
final boolean isOptional;
final boolean isRepeated;
Occurence(Term term, boolean optional, boolean repeated) {
this.term = term;
isOptional = optional;
isRepeated = repeated;
}
static Term wrap( Term t, int occurence ) {
switch(occurence) {
case DTDEventListener.OCCURENCE_ONCE:
return t;
case DTDEventListener.OCCURENCE_ONE_OR_MORE:
return new Occurence(t,false,true);
case DTDEventListener.OCCURENCE_ZERO_OR_MORE:
return new Occurence(t,true,true);
case DTDEventListener.OCCURENCE_ZERO_OR_ONE:
return new Occurence(t,true,false);
default:
throw new IllegalArgumentException();
}
}
void normalize(List r, boolean optional) {
if(isRepeated) {
Block b = new Block(isOptional||optional,true);
addAllElements(b);
r.add(b);
} else {
term.normalize(r,optional||isOptional);
}
}
void addAllElements(Block b) {
term.addAllElements(b);
}
boolean isOptional() {
return isOptional||term.isOptional();
}
boolean isRepeated() {
return isRepeated||term.isRepeated();
}
}