/*
 * Copyright DataStax, 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.datastax.oss.driver.internal.core.metrics;

import java.util.concurrent.TimeUnit;

Note about profiles names: they are included to keep the possibility to break up metrics per profile in the future, but right now the default updater implementations ignore them. The driver internals provide a profile name when it makes sense and is practical; in other cases, it passes null.
/** * Note about profiles names: they are included to keep the possibility to break up metrics per * profile in the future, but right now the default updater implementations ignore them. The driver * internals provide a profile name when it makes sense and is practical; in other cases, it passes * {@code null}. */
public interface MetricUpdater<MetricT> { void incrementCounter(MetricT metric, String profileName, long amount); default void incrementCounter(MetricT metric, String profileName) { incrementCounter(metric, profileName, 1); } void updateHistogram(MetricT metric, String profileName, long value); void markMeter(MetricT metric, String profileName, long amount); default void markMeter(MetricT metric, String profileName) { markMeter(metric, profileName, 1); } void updateTimer(MetricT metric, String profileName, long duration, TimeUnit unit); boolean isEnabled(MetricT metric, String profileName); }