| // Copyright 2017, OpenCensus Authors |
| // |
| // 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 view contains support for collecting and exposing aggregates over stats. |
| // |
| // In order to collect measurements, views need to be defined and registered. |
| // A view allows recorded measurements to be filtered and aggregated. |
| // |
| // All recorded measurements can be grouped by a list of tags. |
| // |
| // OpenCensus provides several aggregation methods: Count, Distribution and Sum. |
| // |
| // Count only counts the number of measurement points recorded. |
| // Distribution provides statistical summary of the aggregated data by counting |
| // how many recorded measurements fall into each bucket. |
| // Sum adds up the measurement values. |
| // LastValue just keeps track of the most recently recorded measurement value. |
| // All aggregations are cumulative. |
| // |
| // Views can be registered and unregistered at any time during program execution. |
| // |
| // Libraries can define views but it is recommended that in most cases registering |
| // views be left up to applications. |
| // |
| // Exporting |
| // |
| // Collected and aggregated data can be exported to a metric collection |
| // backend by registering its exporter. |
| // |
| // Multiple exporters can be registered to upload the data to various |
| // different back ends. |
| package view // import "go.opencensus.io/stats/view" |
| |
| // TODO(acetechnologist): Add a link to the language independent OpenCensus |
| // spec when it is available. |