com.thaiopensource.relaxng.pattern.NullNameClass Maven / Gradle / Ivy

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Jing is a validator for RELAX NG and other schema languages. This project was taken from http://code.google.com/p/jing-trang and mavenized for inclusion in the Wicket Stuff HTML Validator. The code was taken from the 20091111 release.

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package com.thaiopensource.relaxng.pattern;

import com.thaiopensource.xml.util.Name;

/**
 * This is used for the name class of an element pattern when the content expands to notAllowed.
 */
class NullNameClass implements NameClass {
  public boolean contains(Name name) {
    return false;
  }

  public int containsSpecificity(Name name) {
    return SPECIFICITY_NONE;
  }

  public int hashCode() {
    return NullNameClass.class.hashCode();
  }

  public boolean equals(Object obj) {
    if (obj == null || !(obj instanceof NullNameClass))
      return false;
    return true;
  }

  public void accept(NameClassVisitor visitor) {
    visitor.visitNull();
  }

  public boolean isOpen() {
    return false;
  }
}