EAI Siebel Adapter- Query

Hi Team,

I want to call EAI Siebel Adapter query Method in custom business service with Search Sepc condition and capture the Siebel message in custom bs output.

I'm trying as below but it is giving child property error.

Could you help me on this

var intObjectName = Inputs.GetProperty("OpportunityAttachementQuery");

var LOVText = TheApplication().InvokeMethod("OPTY_ATTACH_CLASFIC",'"+[sDocument]+"');

var searchSpec = "[Opportunity.Name]= '"+[ContractNumber]+"' AND [Opportunity Attachment.Attachment Classification]= '"+[LOVText]+"'";

var adpBS = TheApplication().GetService("EAI Siebel Adapter");

var psInputs = TheApplication().NewPropertySet();

var psOutputs  = TheApplication().NewPropertySet();

psInputs.SetProperty("OutputIntObjectName",intObjectName);

psInputs.SetProperty("SearchSpec",searchSpec);

bs.InvokeMethod("Query", psInputs, psOutputs);