Thanks. With that I should be able to handle parameter matching, figuring out the required types if not specified. Looking at this, seems what I can do with parameter handling is fairly limited, but enough to get the job done for the port binding use case. Can handle this: | <mbean ...> | <attribute name="Foo"> | <value-factory bean="FooProvider" method="getFoo" parameter="A" default="1100"/> | </attribute> | </mbean> | And this: | <attribute name="Foo"> | <value-factory bean="FooProvider" method="getFoo" default="1100"> | <parameter>A</parameter> | <parameter>1</parameter> | </value-factory> | </attribute> | And, as long as parameter type com.foo.Bar is visible and a PropertyEditor exists, this: | <attribute name="Foo"> | <value-factory bean="FooProvider" method="getFoo" default="1100"> | <parameter class="com.foo.Bar">A</parameter> | <parameter class="java.lang.Integer">1</parameter> | </value-factory> | </attribute> | (I don't see a clear way to get FooProvider's classloader from a KernelControllerContext, so if com.foo.Bar is not visible, above won't work). This also seems reasonably doable: | <attribute name="Foo"> | <value-factory bean="FooProvider" method="getFoo" default="1100"> | <parameter class="java.lang.Object"> | <value class="java.lang.Integer">1</value> | </parameter> | </value-factory> | </attribute> | The following, while possibly doable are IMHO all a bridge too far: | <attribute name="Foo"> | <value-factory bean="FooProvider" method="getFoo" default="1100"> | <parameter><inject bean"FooParamProvider"/></parameter> | </value-factory> | </attribute> | | <attribute name="Foo"> | <value-factory bean="FooProvider" method="getFoo" default="1100"> | <parameter> | <bean name="FooParam" class="com.foo.FooParam"/> | </parameter> | </value-factory> | </attribute> | | <attribute name="Foo"> | <value-factory bean="FooProvider" method="getFoo" default="1100"> | <parameter> | <map> | ... | </map> | </parameter> | </value-factory> | </attribute> | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4167709#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...