/*
* Copyright 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.safehtml.shared;
/**
* A string wrapped as an object of type {@link SafeHtml}.
*
* <p>
* This class is intended only for use in generated code where the code
* generator guarantees that instances of this type will adhere to the
* {@link SafeHtml} contract (hence the purposely unwieldy class name).
*/
public class OnlyToBeUsedInGeneratedCodeStringBlessedAsSafeHtml
implements SafeHtml {
private String html;
/**
* Constructs an instance from a given HTML String.
*
* @param html an HTML String that is assumed to be safe
*/
public OnlyToBeUsedInGeneratedCodeStringBlessedAsSafeHtml(String html) {
if (html == null) {
throw new NullPointerException("html is null");
}
this.html = html;
}
/**
* {@inheritDoc}
*/
public String asString() {
return html;
}
/**
* Compares this string to the specified object.
*/
@Override
public boolean equals(Object obj) {
if (!(obj instanceof SafeHtml)) {
return false;
}
return html.equals(((SafeHtml) obj).asString());
}
/**
* Returns a hash code for this string.
*/
@Override
public int hashCode() {
return html.hashCode();
}
}