[rules-users] Question

[Heng hh]

Hi all
 I would like to ask how drools run . I found that they can run in two
different drl file. What is salience for ?.

rule " Teting 571"	
	salience 4200
    when
    	root:AdjudicationDTO(type=="PRIORAPPROVAL_LINE",t:type);
    	pa:PriorApproval();
    	pal:PriorApprovalLine($pb:productBenefit); 	    	     	    	   	
    	cct:PriorApprovalTreatment(id!=null,$c:clinical);	    	
	then
		System.out.println( "571= PASS ");
		if(
    		root.getAppliedUcr($pb.getBenefit(),pa.getProposedDateOfTreatment(),pal.getClinicalUcrs(),$c)!=null&&
    		root.getAppliedUcr($pb.getBenefit(),pa.getProposedDateOfTreatment(),pal.getClinicalUcrs(),$c).getUcrType()!=null&&
	    	(
	    		root.getAppliedUcr($pb.getBenefit(),pa.getProposedDateOfTreatment(),pal.getClinicalUcrs(),$c).getMinChargeLimit()!=null&&
			    root.getAppliedUcr($pb.getBenefit(),pa.getProposedDateOfTreatment(),pal.getClinicalUcrs(),$c).getMinChargeLimit().compareTo(pal.getRequestedAmount())<0
			    ||
			    root.getAppliedUcr($pb.getBenefit(),pa.getProposedDateOfTreatment(),pal.getClinicalUcrs(),$c).getMinChargeLimit()!=null&&
			    root.getAppliedUcr($pb.getBenefit(),pa.getProposedDateOfTreatment(),pal.getClinicalUcrs(),$c).getMinChargeLimit().compareTo(pal.getAllocatedAmount())<0
	    	)
	    ){
	        registerPALineStepStr(pal,571+cct.getId().toString(),
		    	"571 Clinical treatment UCR validation",
		    	AdjudicationConstants.RESULT_FAIL,
		    	"The requested amount is more than the treatment UCR charge limit",
		    	"PA line requested amt ["+pal.getRequestedAmount()+"] "+
		    	" Allocated amt ["+pal.getAllocatedAmount()+"] "+
		    	" benefit["+pal.getProductBenefit().getBenefit().getCode()+"]"+
		    	"UCR["+root.getUcrDetailsMsg(root.getAppliedUcr($pb.getBenefit(),pa.getProposedDateOfTreatment(),pal.getClinicalUcrs(),$c))+"]"
		    );
	    }
    	else{
    		registerPALineStepStr(pal,571+cct.getId().toString(),
		    	"571 Clinical treatment UCR validation",
		    	AdjudicationConstants.RESULT_PASS,
		    	"The requested amount is more than the treatment UCR charge limit",
		    	"PA line requested amt ["+pal.getRequestedAmount()+"] "+
		    	" Allocated amt ["+pal.getAllocatedAmount()+"] "+
		    	" benefit["+pal.getProductBenefit().getBenefit().getCode()+"]"+
		    	root.getUcrDetailsMsg(root.getAppliedUcr($pb.getBenefit(),pa.getProposedDateOfTreatment(),pal.getClinicalUcrs(),$c))
		    );
    	}
end