When decorating a service using a decorate method, the underlying service (or
interceptor) should be available as a parameter of the service type, not
java.lang.Object
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Key: TAPESTRY-2554
URL: https://issues.apache.org/jira/browse/TAPESTRY-2554
Project: Tapestry
Issue Type: Improvement
Components: tapestry-core
Affects Versions: 5.0.13
Reporter: Howard M. Lewis Ship
Priority: Minor
Currently, the delegate object (the underlying service, or the next filter in
the chain) must be present as a parameter of the decorating method, as type
Object.
This makes sense for more general decorations, as Java Generics will likely be
used:
public <T> T decorateXYZ(Class<T> serviceInterface, T service) { ... }
The service object will, after erasure, be java.lang.Object.
However, when decorating a specific service, where the service interface is
known a-priori, the delegate must still be passed as java.lang.Object.
Possibly, it will be necessary to use an annotation to be clear that the
parameter in question is the delegate, and not a service injection.
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