com.sun.tools.xjc.reader.dtd.Occurence Maven / Gradle / Ivy
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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();
}
}