Tag.java

/**
 * Copyright 2013 Netflix, Inc.
 * <p/>
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.tag;

/**
 * A key-value pair associated with a metric.
 */
public interface Tag {
  /**
   * Returns the key corresponding to this tag.
   */
  String getKey();

  /**
   * Returns the value corresponding to this tag.
   */
  String getValue();

  /**
   * Returns the string representation of this tag.
   */
  String tagString();
}