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/**
 * Copyright 2013 Netflix, 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.netflix.servo;

import com.netflix.servo.monitor.Monitor;

import java.util.Collection;

/**
 * Registry to keep track of objects with
 * {@link com.netflix.servo.annotations.Monitor} annotations.
 */
public interface MonitorRegistry {
    /**
     * The set of registered Monitor objects.
     */
    Collection> getRegisteredMonitors();

    /**
     * Register a new monitor in the registry.
     */
    void register(Monitor monitor);

    /**
     * Unregister a Monitor from the registry.
     */
    void unregister(Monitor monitor);

    /**
     * Check whether a monitor has been registerd.
     */
    boolean isRegistered(Monitor monitor);
}