创新互联鸿蒙OS教程：鸿蒙OSoverview

Provides classes that leverage Java's annotation mechanism to annotate desired variables and types, so as to eliminate circular reference and improve performance.

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The related classes are as follows: Permanent, Unowned, UnownedLocal, UnownedOuter, and Weak.

Since:

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annotation types summary

Annotation Type	Description
Permanent	Annotates persistent memory objects.
Unowned	Annotates an object without ownership to eliminate circular reference.
UnownedLocal	Annotates a method or a single local variable.
UnownedOuter	Annotates a class to eliminate circular reference.
Weak	Annotates weak reference objects.

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