// specify your DSL grammar rules here ...
// IMPORTANT: You should change the property 'overwrite.pluginresources=true' in the properties file to 'overwrite.pluginresources=false' AFTER first generation

Model: 
	(properties+=PropertyReference)* 
	(projections+=Projection)* 
	(entityAreas+=EntityArea)* 
	(queryAreas+=QueryArea)* 
	(eventAreas+=EventArea)* 
	(messageTypes+=MessageType)*
 	(entities+=EntityReference)*
 	(messageTypes+=MessageType)*
 	(interactions+=Interaction)*
 ;
 
 EntityReference:
 	"&entity" name=ID path=STRING ";";
 	
Projection:
 	"projection" name=ID "{" "&entity" entityRef=[EntityReference] 
 					("exclude" "{" (exclusions+=[PropertyReference] ";")* "}")?
 					("include" "{" (includions+=[Projection] ";")* "}")?
 	"}"
 	
 ;
 
 PropertyReference:
 	"property" name=ID path=STRING ";"
 ;
  	
 QueryArea:
 	"query"
 	(isCollection?="collection")? name=ID "on" projection=[Projection] ";" 
 ;
 
 EventArea:
 	"event" name=ID "{" ("type")? type=ID ";" ("projection")? projection=[Projection] ";" "}"
 ;
 
 EntityArea:
 	"entity" name=ID "{" projection=[Projection] ";" "}"
 ;

 	
Verb:
Get="GET" | Notify="NOTIFY" | Cancel="CANCEL" | Show="SHOW" | Confirm="CONFIRM" | Patch="PATCH" | 	
Prepare="PREPARE" | Submit="SUBMIT"
 ;
 	
Enum MessageExchangePattern:
	inout="in-out" | outin = "out-in" | in="in" | out="out" ;	
 
 MessageType:
 	"message" name = ID "{"
 		"verb" verb = Verb ";"
 		"noun" nound = ID ";"
 		(isIdempotent?="idempotent" ";")?
 		("query" queryArea=[QueryArea] ";")?
 		("event" eventArea=[EventArea] ";")?
 		("entity" entityArea=[EntityArea] ";")?
 		
 	"}" ;

Interaction:
	"interaction" name=ID "{"
		"mep" mep=MessageExchangePattern ";"
		("in" "{" (ins+=[MessageType]";") "}")?
		("out" "{" (outs+=[MessageType]";") "}")?
		("faults" "{" (faults+=[MessageType]";") "}")?
		
	
	"}"
;