| **DONOTDELETE** |
| (Unregistered) |
| 04/01/04 06:54 PM |
Mistake in Figure 7 on isLeaf() Post It Note
|
Small mistake in "Figure 7. A component node adapter.".
Mistake is in the far right side Post It Note, where it says:
"
public boolean isLeaf() {
return component.getComponentCount() > 0;
}
"
This is wrong. You can see that isLeaf() wouldn't return true when it really was a leaf.
Checking the article confirms this: the author's Java code is correct, but his UML class model is an accidental fudge of these two methods from the Java code:
public boolean isLeaf() {
return !isContainer();
}
public boolean isContainer() {
return getComponent().getComponentCount() > 0;
}
Great article though. Nice practical example of Adapter. In general, excellent UML use.
