// Copyright (C) 2015 The Android Open Source Project
//
// 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.google.gerrit.metrics;
/**
* Metric whose value is supplied when the trigger is invoked.
*
* @param <F1> type of the field.
* @param <V> type of the metric value, typically Integer or Long.
*/
public abstract class CallbackMetric1<F1, V> implements CallbackMetric<V> {
/**
* Supply the current value of the metric.
*
* @param field1 bucket to increment.
* @param value current value.
*/
public abstract void set(F1 field1, V value);
/**
* Ensure a zeroed metric is created for the field value.
*
* @param field1 bucket to create.
*/
public abstract void forceCreate(F1 field1);
/** Prune any submetrics that were not assigned during this trigger. */
@Override
public void prune() {}
}