elasticSearch script api
Package org.elasticsearch.script
FunctionScoreQuery
, Aggregation
, UpdateAction
, etc).Interface | Description |
---|---|
ExecutableScript |
An executable script, can't be used concurrently.
|
ExplainableSearchScript |
To be implemented by
SearchScript which can provided an Explanation of the score This is currently not used inside elasticsearch but it is used, see for example here: https://github.com/elastic/elasticsearch/issues/8561 |
LeafSearchScript |
A per-segment
SearchScript . |
NativeScriptFactory | Deprecated
Create a
ScriptEngineService instead of using native scripts |
ScriptContext |
Context of an operation that uses scripts as part of its execution.
|
ScriptEngineService | |
SearchScript |
A search script.
|
Class | Description |
---|---|
AbstractDoubleSearchScript |
A simpler base class instead of
AbstractSearchScript for computations that return a double number. |
AbstractExecutableScript | |
AbstractLongSearchScript |
A simpler base class instead of
AbstractSearchScript for computations that return a long number. |
AbstractSearchScript |
A base class for any script type that is used during the search process (custom score, aggs, and so on).
|
ClassPermission |
Checked by scripting engines to allow loading a java class.
|
CompiledScript |
CompiledScript holds all the parameters necessary to execute a previously compiled script.
|
NativeScriptEngineService |
A native script engine service.
|
ScoreAccessor |
A float encapsulation that dynamically accesses the score of a document.
|
Script |
Script represents used-defined input that can be used to compile and execute a script from the ScriptService based on the ScriptType . |
ScriptContext.Plugin |
Custom operation exposed via plugin, which makes use of scripts as part of its execution
|
ScriptContextRegistry |
Registry for operations that use scripts as part of their execution.
|
ScriptEngineRegistry | |
ScriptMetaData |
ScriptMetaData is used to store user-defined scripts as part of the ClusterState . |
ScriptMetaData.Builder |
A builder used to modify the currently stored scripts data held within the
ClusterState . |
ScriptMetrics | |
ScriptModes |
Holds the boolean indicating the enabled mode for each of the different scripting languages available, each script source and each scripted operation.
|
ScriptModule |
Manages building
ScriptService and ScriptSettings from a list of plugins. |
ScriptService | |
ScriptSettings | |
ScriptStats | |
StoredScriptSource |
StoredScriptSource represents user-defined parameters for a script saved in the ClusterState . |
Enum | Description |
---|---|
ScriptContext.Standard |
Standard operations that make use of scripts as part of their execution.
|
ScriptType |
ScriptType represents the way a script is stored and retrieved from the
ScriptService . |
ScriptEnginService compile?..... 不推荐。
XXXPlugin extends Plugin implements ScriptPlugin
实现方法: List<NativeScriptFactory> getNativeScripts()
实现XXXScriptFactory implements NativeScriptFactory
NativeScriptFactory 创建ExcutableScript实例 ( ExecutableScript newScript() )
主要实现ExecutableScript newScript()
实现 XXXScript extends AbstractDoubleSearchScript
ExecutableScript( run())
实现 runAsDouble()方法
ExecutableScript是接口。
AbsractSearchScritp 实现了ExecutableScript接口。
AbsractSearchScritp 有个lookup!
NativeScriptEngineService
search()会调用 script.setLookup()
依赖
ScriptService 的search(SearchLookup lookup)
依赖
parseSource(DefaultSearchContext context
SearchScript searchScript = scriptService.search(context.lookup()
依赖 createAndPutContext
依赖executeDfsPhase
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