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Struts & Hibernate
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| | | ServiceLocator end InitialContext | ServiceLocator end InitialContext 2004-07-14 - By Giovani Salvador
Back
Hi all...
In the ServiceLocator pattern i build a IntialContext in its private
contructor and use this
IntialContext to lookup "services". I have seen in the examples and im
my own use of
this pattern that it?s built an IntialContext without parameter. What
about if i have to "attach"
to another context? If i have to do this i have to pass a Properties
object in the InitialContext?s constructor, ok?
But my ServiceLocator class has only one private variable instance of an
InitialContext and this initialContext,
as i said before, is built in the ServiceLocator?s private contructor
and built withou parameter of context.
Example
....
public class ServiceLocator {
private static ServiceLocator me;
InitialContext context = null;
private ServiceLocator()
throws ServiceLocatorException {
try {
context = new InitialContext();
} catch(NamingException ne) {
throw new ServiceLocatorException(...);
}
}
// Returns the instance of ServiceLocator class
public static ServiceLocator getInstance()
throws ServiceLocatorException {
if (me == null) {
me = new ServiceLocator();
}
return me;
}
...
What do i have to do if i want to use another context? How to achieve
this in the ServiceLocator Pattern?
Remember this patterns is suggested to be a singleton!!!!!!!!
Thanks
Giovani Salvador
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