Referer.java

/*
 *  Copyright 2009-2016 Weibo, 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.weibo.api.motan.rpc;

import com.weibo.api.motan.core.extension.Scope;
import com.weibo.api.motan.core.extension.Spi;

/**
 * 
 * Refer to a service.
 * 
 * @author fishermen
 * @version V1.0 created at: 2013-5-16
 */
@Spi(scope = Scope.PROTOTYPE)
public interface Referer<T> extends Caller<T>, Node {

    /**
     * 当前使用该referer的调用数
     * 
     * @return
     */
    int activeRefererCount();

    /**
     * 获取referer的原始service url
     * 
     * @return
     */
    URL getServiceUrl();
}