59 lines
4.6 KiB
Plaintext
59 lines
4.6 KiB
Plaintext
[[painless-contexts]]
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== Painless contexts
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:es_version: https://www.elastic.co/guide/en/elasticsearch/reference/master
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:xp_version: https://www.elastic.co/guide/en/x-pack/current
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A Painless script is evaluated within a context. Each context has values that
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are available as local variables, a whitelist that controls the available
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classes, and the methods and fields within those classes (API), and
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if and what type of value is returned.
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A Painless script is typically executed within one of the contexts in the table
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below. Note this is not necessarily a comprehensive list as custom plugins and
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specialized code may define new ways to use a Painless script.
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[options="header",cols="<1,<1,<1"]
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|====
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| Name | Painless Documentation
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| Elasticsearch Documentation
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| Update | <<painless-update-context, Painless Documentation>>
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| {es_version}/docs-update.html[Elasticsearch Documentation]
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| Update by query | <<painless-update-by-query-context, Painless Documentation>>
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| {es_version}/docs-update-by-query.html[Elasticsearch Documentation]
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| Reindex | <<painless-reindex-context, Painless Documentation>>
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| {es_version}/docs-reindex.html[Elasticsearch Documentation]
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| Sort | <<painless-sort-context, Painless Documentation>>
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| {es_version}/search-request-sort.html[Elasticsearch Documentation]
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| Similarity | <<painless-similarity-context, Painless Documentation>>
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| {es_version}/index-modules-similarity.html[Elasticsearch Documentation]
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| Weight | <<painless-similarity-context, Painless Documentation>>
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| {es_version}/index-modules-similarity.html[Elasticsearch Documentation]
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| Score | <<painless-score-context, Painless Documentation>>
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| {es_version}/query-dsl-function-score-query.html[Elasticsearch Documentation]
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| Field | <<painless-field-context, Painless Documentation>>
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| {es_version}/search-request-script-fields.html[Elasticsearch Documentation]
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| Filter | <<painless-filter-context, Painless Documentation>>
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| {es_version}/query-dsl-script-query.html[Elasticsearch Documentation]
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| Minimum should match | <<painless-min-should-match-context, Painless Documentation>>
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| {es_version}/query-dsl-terms-set-query.html[Elasticsearch Documentation]
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| Metric aggregation initialization | <<painless-metric-agg-init-context, Painless Documentation>>
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| {es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
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| Metric aggregation map | <<painless-metric-agg-map-context, Painless Documentation>>
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| {es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
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| Metric aggregation combine | <<painless-metric-agg-combine-context, Painless Documentation>>
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| {es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
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| Metric aggregation reduce | <<painless-metric-agg-reduce-context, Painless Documentation>>
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| {es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
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| Bucket aggregation | <<painless-bucket-agg-context, Painless Documentation>>
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| {es_version}/search-aggregations-pipeline-bucket-script-aggregation.html[Elasticsearch Documentation]
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| Ingest processor | <<painless-ingest-processor-context, Painless Documentation>>
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| {es_version}/script-processor.html[Elasticsearch Documentation]
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| Watcher condition | <<painless-watcher-condition-context, Painless Documentation>>
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| {xp_version}/condition-script.html[Elasticsearch Documentation]
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| Watcher transform | <<painless-watcher-transform-context, Painless Documentation>>
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| {xp_version}/transform-script.html[Elasticsearch Documentation]
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|====
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include::painless-contexts/index.asciidoc[]
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