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https://issues.apache.org/jira/browse/TAPESTRY-1958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548577
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Massimo Lusetti commented on TAPESTRY-1958:
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If that's the case better to use something like this.
public static <T> T decorateTransaction(Class<T> serviceInterface, T delegate,
String serviceId, Session session,
TransactionDecorator decorator)
{
return decorator.build(serviceInterface, delegate, serviceId,
session);
}
We got generics so we can leverage the functionality and have type safety,
otherwise we can go and use ruby ;)
> aditional example for service decorators
> ----------------------------------------
>
> Key: TAPESTRY-1958
> URL: https://issues.apache.org/jira/browse/TAPESTRY-1958
> Project: Tapestry
> Issue Type: Improvement
> Components: Documentation, tapestry-ioc
> Affects Versions: 5.0.6
> Reporter: Davor Hrg
> Fix For: 5.0.7
>
>
> documentation for decorating services should have an additional example
> somethig like this for situations where we are decorating a specific service,
> and not using some general decorator factory
> public static ComponentMessagesSource
> decorateComponentMessagesSource(Object delegate, Logger logger){
> return new ComponentMessagesSourceDecorator((ComponentMessagesSource)
> delegate,logger);
> }
> this should be documented because the decorator is ignored if above is
> chenged this way
> (this is somehow more logical than above but doesn't work)
> public static ComponentMessagesSource
> decorateComponentMessagesSource(ComponentMessagesSource delegate, Logger
> logger){
> return new ComponentMessagesSourceDecorator(delegate,logger);
> }
> I think that the second sample caused exceptions in earlier versions....
> (the exception was even more misleading)
> of course, if not too much trouble, tapestry ioc could be modified so that
> the second example works as well
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