passing xe:jsonRpcService to csjs class - xpages

Question

I have a xe:jsonRpcService that I'd like to pass to a csjs class. How is this possible?
The service:
<xe:jsonRpcService id="jsonRpcService1" serviceName="rpcServices">
<xe:this.methods>
<xe:remoteMethod name="loadEntity"
script="PersonBean.loadEntity(id);">
<xe:this.arguments>
<xe:remoteMethodArg name="id" type="string"></xe:remoteMethodArg>
</xe:this.arguments>
</xe:remoteMethod>
</xe:this.methods>
</xe:jsonRpcService>
Call to my class in a output script:
formHelper = new FormHeler( rpcServices ) ;
The csjs class:
function Formhelper( service ) {
//...
this.loadEntity = function( id ) {
//...
resultObj = service.loadEntity( id ) ;
//...
}
}
Using rpcServices.loadEntity in the class works. But I'd like to pass it as parameter, so I can use the class with different services.
rpcServices as parameter for the class constructor doesn't work. Is there another way to pass a reference to a service and make it available in the class?

Answer 1

rpcServices is a server-side collection of REST service endpoints (the this.methods). You can't pass that collection to CSJS, you can only pass the result of one of the endpoints.
Think of it as being like trying to pass a SSJS Script Library into a CSJS function.

Answer 2

Thank's Paul. Got it to work by passing the service name to the class. Then I use eval to call the rpc method:
var serviceName = "rpcServices" ;
formHelper = new FormHelper( serviceName ) ;
function FormHelper( serviceName ) {
this.serviceName = serviceName ;
//...
this.loadEntity = function( id ) {
var rpcResultObj = eval( this.serviceName + ".loadEntity( \"" + id + "\" )" ) ;
}
//...
}
Now I can use my FormHelper methods with different services.