I presume you mean recursive rather than iterative. All recursion can be expressed as iteration but sometimes (and this is an example) it is simpler to be recursive. I forward an email on the subject originally in reply to LJ Longwing. Note that this "code" is NOT java! From: Action Request System discussion list(ARSList) [mailto: <mailto:arslist@ARSLIST.ORG> arsl...@arslist.org] On Behalf Of Ben Chernys Sent: Friday, January 25, 2008 1:38 PM To: <mailto:arslist@ARSLIST.ORG> arslist@ARSLIST.ORG Subject: Re: Java 7.1 API Assistance This is non-trivial. I have described my function on the list in the past but cannot find that post (perhaps in an archive?). I use it in a binary that "dumps" an ARS server's workflow and table structures into an ASCII file that I can then search in an editor. >From the function pre-amble: // builds a text string from an AR Qualifier Struct ArdUtErr ArdQualDecode ( // decodes a qualifier structure ArdSch * pS, // a loaded schema ArdSch * pSc, // the "current" schema ARQualifierStruct * pQ, // returned string must be freed char * * vTgt // by caller and can be used ) // in ARLoadARQualifierStruct() // this is pretty recursive. // first, the structure of pQ: // op // left, right (two new, same structs) // not (one more same struct) // relopstruct (a simpler field / value struct) // so how do we do it? // we will always produce a string something like // ( ?? AND ?? ) or // ( ?? OR ?? ) or // ( NOT ?? ) or // ( A <= B ) // the ?? is returned by a recursive call to this routine The gist of the main switch in the function ... switch (pQ->operation) { case AR_COND_OP_AND: case AR_COND_OP_OR: ArdQualDecode(pS, pSc, pQ->u.andor.operandLeft, & wP1); ArdQualDecode(pS, pSc, pQ->u.andor.operandRight, & wP2); // combine "( wP1 and/or wP2 )" case AR_COND_OP_NOT: ArdQualDecode(pS, pSc, pQ->u.not, & wP1); // combine "( not wP1 )" case AR_COND_OP_REL_OP: // make "( a relop b )" } ...
_____ From: Action Request System discussion list(ARSList) [mailto:arsl...@arslist.org] On Behalf Of LJ Longwing Sent: October 27, 2009 4:15 PM To: arslist@ARSLIST.ORG Subject: Re: Java API for ARS - How to obtain a Run-If line from an Active Link (for example) ** Wow...ask a tough one....ok....took me FOREVER to figure out Qualifiers....but here is basically what you need to do. A QualifierInfo object has three main parts, LeftOperand, Operation, and RightOperand. To explain these parts I will give you an example ('Status' = "Fixed") AND ('Create Date' < $DATE$) Ok, if that is your QualifierInfo object, here are your pieces LeftOperand = ('Status' = "Fixed") Operation = AND RightOperand = ('Create Date' < $DATE$) So, what I have done in several programs now is to write an iterative subroutine, if you check the operation to determine if it is a relational operation (< > = != etc). If it's not, I throw RightOperand back into the sub till it is, If it is then you know you are down to a single operand, and then you can parse the field/value on left and right for what you want to check/test for. Please let me know if this helps any....it's still a bit fuzzy in my head, but I understand it well enough as it is to do what I need to do. _____ From: Action Request System discussion list(ARSList) [mailto:arsl...@arslist.org] On Behalf Of David Morgan Sent: Tuesday, October 27, 2009 8:33 AM To: arslist@ARSLIST.ORG Subject: Java API for ARS - How to obtain a Run-If line from an Active Link (for example) ** Hi ARSListers, I have been looking at the Java API but am stumped by Qualifiers. String name1 = "Demo"; String swd = "etno"; String sname = "dclha002"; Integer tcpport = 8001; Integer rpcnum = 0; ARServerUser context=new ARServerUser(name1,swd,"",sname, tcpport); // Check and verify user login: try { // If User Pass/Acct name is wrong, this gens an error. context.login(); } catch( ARException e ) { System.out.println( "Login Error : " + " Possible Bad password or acct name. " ); //This return ends all further processing and exits... return; } List<ActiveLink> aLinkObjs=context.getListActiveLinkObjects("AST:WorkLog"); int x = 0; for (int i = 0; i < aLinkObjs.size(); i++) { System.out.format("\n%20s%60s\n\n", i, aLinkObjs.get(i).getName()); //ActiveLink alink = aLinkObjs.get(x); try{ QualifierInfo encryptedQual = aLinkObjs.get(i).getQualifier(); System.out.println(encryptedQual.toString() ); RelationalOperationInfo qualEnglish = encryptedQual.getRelationalOperationInfo(); System.out.println("Qual : "+ qualEnglish.toString()); } catch (Exception e){ System.out.println("no Qualification\n"); } if (aLinkObjs.get(i).toString().contentEquals("ASI:AWL:Close_100") ) { x = i ; // System.out.println(x); } } context.logout(); } I can get the names of the Active links associated with the named form (in this example I used AST:WorkLog) But I cannot seem to decode the Qualifier. All I get from the output is :- 1 SHR:SHR:Help_003_CheckOnlineHelpInstall_E [Operation=4,Operand Left=[Operation=2,Operand Left=[Operand Type=[type=2],Operand=$LASTCOUNT$],Operand Right=[Operand Type=[type=2],Operand=0]],Operand Right=<null>] Qual : [Operation=2,Operand Left=[Operand Type=[type=2],Operand=$LASTCOUNT$],Operand Right=[Operand Type=[type=2],Operand=0]] I just need some help in decoding the Qualifier. Anyone got any ideas? Thanks in advance!! David Morgan Senior Technical Consultant Tiberone Technologies Limited Golden Cross House 8 Duncannon Street London WC2N 4JF Ph: +44 (0) 207 484 5069 Fax: +44 (0) 870 8310 381 Mob: +44 (0) 7876 450102 <http://www.tiberone.com/> www.tiberone.com _Platinum Sponsor: rmisoluti...@verizon.net ARSlist: "Where the Answers Are"_ _Platinum Sponsor: rmisoluti...@verizon.net ARSlist: "Where the Answers Are"_ _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org Platinum Sponsor:rmisoluti...@verizon.net ARSlist: "Where the Answers Are"
