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Diffstat (limited to 'java/com/google/gerrit/metrics/Histogram2.java')
-rw-r--r-- | java/com/google/gerrit/metrics/Histogram2.java | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/java/com/google/gerrit/metrics/Histogram2.java b/java/com/google/gerrit/metrics/Histogram2.java new file mode 100644 index 0000000000..939fe2506f --- /dev/null +++ b/java/com/google/gerrit/metrics/Histogram2.java @@ -0,0 +1,36 @@ +// 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; + +import com.google.gerrit.extensions.registration.RegistrationHandle; + +/** + * Measures the statistical distribution of values in a stream of data. + * + * <p>Suitable uses are "response size in bytes", etc. + * + * @param <F1> type of the field. + * @param <F2> type of the field. + */ +public abstract class Histogram2<F1, F2> implements RegistrationHandle { + /** + * Record a sample of a specified amount. + * + * @param field1 bucket to record sample + * @param field2 bucket to record sample + * @param value value to record + */ + public abstract void record(F1 field1, F2 field2, long value); +} |