RuleEngine - Use more then one object within one decision table.

Stefan13 — Tue, 16 May 2017 08:35:13 -0400

In your example from the ivy demos, you show how to apply an decision table.

/*
 * We need to create a rule session to execute the rules.
 * 
 * 'out.member' is the input object that stores the information of a member.
 * This object will be modified during the rule execution.
 */
in.ruleBaseForDecisionTable.createSession().execute(out.member);

Is it also possible, to use more the one object, for example:

in.ruleBaseForDecisionTable.createSession().execute(out.member1,out.member2,out.member3);

Or is that not provided?

regards, Stefan

Sending Signals, how to define a Signal only once

Stefan13 — Wed, 14 Sep 2016 16:23:04 -0400

Hi,

When using signals, a signal is defined as a string, for example in a Signal Start Event. This string has to be coded at least twice, when you send a signal and when you receive a signal. This can produce a spelling mistake easily, for exmple, somebody sends xxx:awaiting_end_of_rejection_period:start, but the SignalStartEvent waits for xxx:await_end_of_rejection_period:start.

I would like to define all my signal strings in an interface like this in Java:

public interface SignalCodes { public static String INITIALIZE_REQUEST = "xxx:initialize_request:start"; public static String RECOGNIZE_BUSINESS_CASE = "xxx:recognize_business_case:start"; public static String IDENTIFY_REQUESTER = "xxx:identify_requester:start"; public static String CREATE_REQUEST_AND_REQUESTER = "xxx:create_request_and_requester:start"; public static String RATE_REQUEST = "xxx:rate_request:start"; public static String AWAIT_END_OF_REJECTION_PERIOD = "xxx:awaiting_end_of_rejection_period:start"; public static String REJECT_REQUEST = "xxx:reject_request:start"; public static String PEP_CHECK = "xxx:pep_check:start"; public static String MANUAL_HANDLING = "xxx:manual_handling:start"; public static String SEND_CONTRACT_DOCUMENTS = "xxx:send_contract_documents:start"; }

I can use thise definition when i send the signal programmatically, but i can't use it in the SignalStartEvent. There only a hard coded string ca be used.

Is there a solution for this problem? Define a signal string only once and then use ist on both sides, sender and receiver?

I think, the CMS should be the right place to define the signal strings.

Questions asked by Stefan13

RuleEngine - Use more then one object within one decision table.

Sending Signals, how to define a Signal only once