A.3 Interfaces


 
Building Parsers with Java
By Steven  John  Metsker

Table of Contents
Appendix  A.   UML Twice Distilled

    Content

Figure A.3 shows the basic features for illustrating interfaces.

Figure A.3. Interfaces. Unless there is other structural information that you want to illustrate , you can use a simple line and circle to show that a class implements an interface.

graphics/afig03.gif

In Figure A.3, note the following.

  • A diagram can show that a class implements an interface by showing a line and circle (a "lollipop") and the name of the interface. The Assembly class, for example, implements the Enumeration and PubliclyCloneable interfaces.

  • A diagram can also show an interface by placing the text <<interface>> and the name of the interface in a rectangle, as Figure A.3 shows. In this approach, a diagram can show that a class implements the interface using a dashed line and a large, open arrowhead .

  • When showing a class relationship, a diagram can emphasize that objects of one class are aggregations of objects of another class by adding a diamond to the connecting line. Figure A.3 indicates that a structure is an aggregation of terms, which may be variables or other structures.


   
Top


Building Parsers with Java
Building Parsers With Javaв„ў
ISBN: 0201719622
EAN: 2147483647
Year: 2000
Pages: 169

Similar book on Amazon

flylib.com © 2008-2017.
If you may any questions please contact us: flylib@qtcs.net