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plugin_components.md: more "Project Open"

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Yann Cébron 2020-09-24 16:18:54 +02:00
parent 29100f42bb
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basics/plugin_structure/plugin_components.md
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@ -34,8 +34,13 @@ Executing code on application startup should be avoided whenever possible becaus
To execute code when a project is being opened, use one of these two [extensions](plugin_extensions.md):
- [StartupActivity](upsource:///platform/core-api/src/com/intellij/openapi/startup/StartupActivity.java) registered via `com.intellij.postStartupActivity` for immediate execution
- [StartupActivity.Background](upsource:///platform/core-api/src/com/intellij/openapi/startup/StartupActivity.java) registered via `com.intellij.backgroundPostStartupActivity` for execution with 5 seconds delay (2019.3 or later)
`com.intellij.postStartupActivity`
: [StartupActivity](upsource:///platform/core-api/src/com/intellij/openapi/startup/StartupActivity.java) for immediate execution on EDT. Implement `DumbAware` to indicate activity can run in background thread (in parallel with other such tasks).
`com.intellij.backgroundPostStartupActivity`
: [StartupActivity.Background](upsource:///platform/core-api/src/com/intellij/openapi/startup/StartupActivity.java) for execution with 5 seconds delay in background thread (2019.3 or later).
Access to indices must be wrapped with `DumbService`, see also [General Threading Rules](/basics/architectural_overview/general_threading_rules.md).
### Application/Project Close