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Composite pattern
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=== UML class diagram === [[Image:Composite UML class diagram (fixed).svg|thumb|none|600px|Composite pattern in [[Unified Modeling Language|UML]].]] ;Component * is the abstraction for all components, including composite ones * declares the interface for objects in the composition * (optional) defines an interface for accessing a component's parent in the recursive structure, and implements it if that's appropriate ;Leaf * represents leaf objects in the composition * implements all Component methods ;Composite * represents a composite Component (component having children) * implements methods to manipulate children * implements all Component methods, generally by delegating them to its children [[Image:Composite pattern in LePUS3.png|thumb|none|400px|Composite pattern in [[Lepus3|LePUS3]].]]
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