com.datastax.oss.driver.api.core.metrics.SessionMetric Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.datastax.oss.driver.api.core.metrics;

import com.datastax.oss.driver.api.core.session.Session;
import edu.umd.cs.findbugs.annotations.NonNull;

/**
 * A session-level metric exposed through {@link Session#getMetrics()}.
 *
 * All metrics exposed out of the box by the driver are instances of {@link DefaultSessionMetric}
 * or {@link com.datastax.dse.driver.api.core.metrics.DseSessionMetric DseSessionMetric} (this
 * interface only exists to allow custom metrics in driver extensions).
 *
 * @see NodeMetric
 */
public interface SessionMetric {

  @NonNull
  String getPath();
}