com.google.inject.multibindings.RealElement Maven / Gradle / Ivy
/**
* Copyright (C) 2008 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.inject.multibindings;
import java.lang.annotation.Annotation;
import java.util.concurrent.atomic.AtomicInteger;
/**
* @author [email protected] (Jesse Wilson)
*/
class RealElement implements Element {
private static final AtomicInteger nextUniqueId = new AtomicInteger(1);
private final int uniqueId;
private final String setName;
RealElement(String setName) {
uniqueId = nextUniqueId.getAndIncrement();
this.setName = setName;
}
public String setName() {
return setName;
}
public int uniqueId() {
return uniqueId;
}
public Class annotationType() {
return Element.class;
}
@Override public String toString() {
return "@" + Element.class.getName() + "(setName=" + setName
+ ",uniqueId=" + uniqueId + ")";
}
@Override public boolean equals(Object o) {
return o instanceof Element
&& ((Element) o).setName().equals(setName())
&& ((Element) o).uniqueId() == uniqueId();
}
@Override public int hashCode() {
return 127 * ("setName".hashCode() ^ setName.hashCode())
+ 127 * ("uniqueId".hashCode() ^ uniqueId);
}
}