My reply was a bit to general. Sorry. btw: the fooCollection.visit
should be called visitAll.
Basically it is
public class CountingVisitor extends
DefaultBindingTargetVisitor<Object,Object>{
public int nrOfLinked = 0;
public Object visitLinkedKey(LinkedKeyBinding<?> binding)
{nrOfLinked++; return binding;}
}
CountingVisitor visitor = new CountingVisitor();
for (Binding<?> binding : injector.getBindings().values()) {
binding.acceptTargetVisitor(visitor);
}
sout("There are " + visitor.nrOfLinked + " linked bindings known");
vs.
int nrOfLinked = 0;
for (Binding<?> binding : injector.getBindings().values()) {
if(binding instanceof LinkedKeyBinding){nrOfLinked++;}
}
sout("There are " + nrOfLinked + " linked bindings known");
in this case the second is shorter but normally the visitor is better
idea.
Cheers,
Alen
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