On Sep 5, 2006, at 4:03 PM, Raymond Feng wrote:
Hi,
We simply test if sourceInterfaceClass.isAssignableFrom
(targetInterfaceClass) in the ConnectorImpl to decide if a source
can be wired to a target. I'm getting a BuilderConfigException if I
try to wire a reference to a component with a compatible interface
defined by the SCA spec. A similar problem (Java vs.WSDL) was
reported by Scott in the JIRA issue TUSCANY-686.
org.apache.tuscany.spi.builder.BuilderConfigException: Incompatible
source and target interfaces
at org.apache.tuscany.core.builder.ConnectorImpl.connect
(ConnectorImpl.java:331)
at org.apache.tuscany.core.builder.ConnectorImpl.connect
(ConnectorImpl.java:116)
at
org.apache.tuscany.core.implementation.composite.AbstractCompositeComp
onent.prepare(AbstractCompositeComponent.java:244)
at org.apache.tuscany.core.deployer.DeployerImpl.deploy
(DeployerImpl.java:86)
at org.apache.tuscany.core.launcher.LauncherImpl.bootApplication
(LauncherImpl.java:193)
at org.apache.tuscany.test.SCATestCase.setUp(SCATestCase.java:65)
at echo.BootstrapTestCase.setUp(BootstrapTestCase.java:41)
...
Yea that was a shortcut I took for the time being
I'm adding the following two methods to the ServiceContract and
Operation models to implement the algorithm (I feel it should be
different than equals()). But I wonder if they should be hosted by
something else like "WireService". Any opinions?
boolean isCompatibleTarget(ServiceContract<?> targetServiceContract);
boolean isCompatibleTarget(Operation<?> operation);
Another interesting thing is that how databinding transformation
will change the "compatiblity" story. Does it make sense to say
"two operations are compatible if the they have the same name and
input/output/fault types can be transformed from one to the other"?
I guess the answer could impact the SCA spec.
I would prefer to add them to something other than model objects as
the model should not contain behavior. Wire service seems fine. When
you add them, would you mind also including a battery of unit tests
for the spec algorithm as well?
Thx!
Jim
Thanks,
Raymond
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