June 2018
Intermediate to advanced
280 pages
7h 46m
English
Content preview from Design Patterns and Best Practices in Java
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Implementation
The following diagram shows that the client uses the component interface doSomething() method. That method is implemented differently in root and leaf nodes. A root node can have 1 to n children; the leaf node has none. When the number of children is 2 and there are no cycles, then we have the case of a binary tree:
We can distinguish between the following actors in the implementation diagram:
- Client: The client code
- Component: The abstract node
- Leaf: The leaf node
- Composite: The composite node that has children that can be composite or leaf nodes
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