Painless contexts
editPainless contexts
editA Painless script is evaluated within a context. Each context has values that are available as local variables, a whitelist that controls the available classes, and the methods and fields within those classes (API), and if and what type of value is returned.
A Painless script is typically executed within one of the contexts in the table below. Note this is not necessarily a comprehensive list as custom plugins and specialized code may define new ways to use a Painless script.
Name | Painless Documentation | Elasticsearch Documentation |
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Ingest processor |
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Update |
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Update by query |
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Reindex |
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Sort |
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Similarity |
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Weight |
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Score |
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Field |
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Filter |
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Minimum should match |
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Metric aggregation initialization |
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Metric aggregation map |
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Metric aggregation combine |
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Metric aggregation reduce |
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Bucket script aggregation |
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Bucket selector aggregation |
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Watcher condition |
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Watcher transform |