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persisting_state_of_components.md: Emphasize immutability and thread safety of SerializablePersistentStateComponent

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Karol Lewandowski 2025-03-13 10:07:04 +01:00
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topics/basics/persisting_state_of_components.md
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@ -61,10 +61,10 @@ class MySettings : SimplePersistentStateComponent<MySettings.State>(State()) {
<chapter title="SerializablePersistentStateComponent" id="SerializablePersistentStateComponent"> <chapter title="SerializablePersistentStateComponent" id="SerializablePersistentStateComponent">
<primary-label ref="2022.2"/> <primary-label ref="2022.2"/>
[`SerializablePersistentStateComponent`](%gh-ic%/platform/projectModel-api/src/com/intellij/openapi/components/SerializablePersistentStateComponent.kt) is parameterized with a state data class. [`SerializablePersistentStateComponent`](%gh-ic%/platform/projectModel-api/src/com/intellij/openapi/components/SerializablePersistentStateComponent.kt) is parameterized with an immutable state data class.
State properties are exposed via persistent state component class' properties. State properties are exposed for reading and modification via persistent state component class' properties.
The state properties are modified by copying the state and overwriting a modified value within `SerializablePersistentStateComponent.updateState()`, which ensures atomic modification. The state properties are modified by copying the state and overwriting a modified value within `SerializablePersistentStateComponent.updateState()`, which ensures atomic modification and thread safety.
Example: Example: