Template Method Pattern
The
Template Method Pattern defines the skeleton of an algorithm in an
operation, deferring some steps to subclasses. Template Method lets
subclasses redefine certain steps of an algorithm without changing the
algorithm's structure.
Wizard
Applicability
Additional Resources

Option |
Description |
Default |
Source folder |
Enter a source folder for the new class. Either type a valid
source folder path or click Browse to select a source
folder via a dialog. |
The source folder of the element that was selected when the
wizard was started. |
Package |
Enter a package to contain the new class. Either type a
valid package name or click Browse to select a package via
a dialog. |
The package of the element that was selected when the wizard
has been started. |
Abstract template |
Type or click Browse to
select an abstract template class. |
<AbstractTemplate> |
Modifiers |
Select one or more access modifiers for the new class.
- public (uncheck for default visibility)
- abstract
|
public |
Superclass |
Type or click Browse to
select a superclass for this class. |
<java.lang.Object> |
Template method |
Type or select the name of the method that will
define the order of the primitive operations |
<templateMethod> |
Primitive operations |
Click Add to enter return types and names of primitive
operations that
should be created in the template classes |
<blank> |

Option |
Description |
Default |
Concrete template classes |
Click Add to enter names of the concrete
template classes that
should be created. |
<blank> |
Use the Template Method pattern should be used
- to implement the invariant parts of an algorithm once and leave it up
to subclasses to implement the behavior that can vary.
- when common behavior among subclasses should be factored and localized
in a common class to avoid code duplication.
- to control subclasses extensions. You can define a template method
that calls "hook" operations (see Consequences) at specific
points, thereby permitting extensions only at those points.
http://c2.com/cgi/wiki?TemplateMethodPattern
http://www.wikipedia.org/wiki/Template_method_pattern
http://www.cmcrossroads.com/bradapp/javapats.html#TemplateMethod
http://www.dofactory.com/Patterns/pattern_template.asp
|