Is there any sample for readDSCBChain() method? about java-samples

[irisbaron]

@CarlosDGQ Dear Carlos, please see the response from the experts:

JZOS readDSCBChain javadoc refers to the DFSMSdfp publication for additional information:

• The function and return codes for the OBTAIN / CAMLST-SEARCH macro
  are described in the IBM publication DFSMSdfp Advanced Services - SC26-7400.

Here is a link to the documentation:
https://www-01.ibm.com/servers/resourcelink/svc00100.nsf/pages/zOSV2R3SC236861/$file/idas300_v2r3.pdf

Pages 22 to pages 25 describes DSCB Types and several examples illustrated with pictures.

JZOS readDSCBchain returns a list of DSCBs associated with the dataset. Here is psedo code that demonstrates how to utilize the method and determines the type of each DCB in the returned chain:

	String[] volumes = ZFile.locateDSN(ssqDsn);
		String vol = volumes[0];
		DSCB[] dscbs = ZFile.readDSCBChain(ssqDsn, vol);
		for (i = 0; i < dscbs.length; i++) {
   	     if (dscbs[i] instanceof Format1DSCB)
			  // a Format1DSCB
		     else if (dscbs[i] instanceof Format3DSCB)	
			  // a Format3DSCB
		     else if (dscbs[i] instanceof Format8DSCB)	
			  // a Format8DSCB
 		     else if (dscbs[i] instanceof Format9DSCB)	
			  // a Format9DSCB
                    }

Hope above information helps!

[simpleDgq]

Hi,
Thanks for your help. It's very useful to me. The problem has been resolved, I will close this issue.