See: Description
| Interface | Description | 
|---|---|
| Operation<T,R> | 
 Common interface for control state predicate. 
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| Class | Description | 
|---|---|
| Actions | 
 Collects predicates responsible for various actions on elements. 
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| Getters | 
 Collects predicates responsible for various get operations. 
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| Setters | 
 Collects predicates which are responsible for various set operations. 
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| States | 
 The container of Control state predicates. 
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