What data-type does the channel send to a transformer?
eg. if i am using this configuration

<int-jdbc:inbound-channel-adapter
data-source="datasource1" query="select * from course2" channel="input">
<intoller fixed-rate="10" >
</intoller>
</int-jdbc:inbound-channel-adapter>

so what does it send to the transformer?

<bean id="courseTrasformer" class="org.mkcl.integration.service.CourseTrasform er"></bean>
<int:transformer input-channel="input" output-channel="output"
ref="courseTrasformer" method="transform" id="coursetransformer">
</int:transformer>


so what shud be the Datatype of the parameters in the method transform?
Is it specific to the adapter we are using?

Please help.