Error Getting View Handle
view handle Unable to perform view startup operations; reinstall; reimage; unable to get view handle; 1126174 Technote (troubleshooting) Problem(Abstract) This technote explains how an IBM Rational ClearCase view that is restored incorrectly can result in the error Unable to perform view startup operations on Microsoft Windows. Cause Attempts to start a view, results in the error: Unable to perform view startup operations... Unable to get view handle. A check of the view server logs list several "unknown style protections" errors. However, using fix_prot did not resolve the problem. Note: The problem is only with restored view, and new views created on this machine work correctly. The machine that was hosting the view was re-imaged and the machine name was changed. The view was backed up to a network share before the re-image was done, and then simply copied back. This is the source of the "unknown style protections" errors. The hostname change caused the existing view to have incorrect host information for the view server. In this case, the global path was correct but the view server host name was not. Resolving the problem Replace the registry and view tag entries for the restored views using the cleartool sub-commands register and mktag, respectively. cleartool register -view -replace
an attribute of the ERROR-STATUS handle.methodSpecifies a method of the ERROR-STATUS handle.AttributesERROR attributeERROR-OBJECT-DETAIL attributeHANDLE attributeINSTANTIATING-PROCEDURE attributeNUM-MESSAGES attributeTYPE attributeMethodsGET-MESSAGE( ) method (Handle)GET-NUMBER( ) methodExamplesThe following example uses the NO-ERROR and the ERROR-STATUS handle extensively to demonstrate when ERROR-STATUS attributes are reset:r-errst1.pCONNECT "db-xyz" NO-ERROR.RUN chk-connect NO-ERROR.IF ERROR-STATUS:ERROR THEN MESSAGE "Run statement failed.".PROCEDURE chk-connect:DEFINE VARIABLE connect-ok AS LOGICAL NO-UNDO INITIAL TRUE.IF ERROR-STATUS:ERROR THEN DO:MESSAGE "Connect failed.".connect-ok = http://www.ibm.com/support/docview.wss?uid=swg21126174 FALSE NO-ERROR.IF ERROR-STATUS:ERROR THEN MESSAGE "Assignment failed.".END. IF connect-ok THEN RETURN "OK". ELSE RETURN "FAILED".END PROCEDURE.Within the internal procedure, chk-connect, the first reference to ERROR-STATUS:ERROR returns status on the CONNECT statement from the main procedure. The second reference returns status on the assignment statement. The reference https://documentation.progress.com/output/ua/OpenEdge_latest/dvref/error-status-system-handle.html to ERROR-STATUS:ERROR in the main procedure returns status on the RUN statement. Note that the ERROR-STATUS attributes are set only after the statement with NO-ERROR completes. Therefore the references in the internal procedure are not affected by the RUN statement itself.The following procedure accepts a character string value and lets you convert it to one of several data types. The internal convert procedure attempts the conversion. If the conversion is successful, it displays the converted value. If the conversion is unsuccessful, the ERROR-STATUS handle holds error information. After running convert, the CHOOSE trigger checks ERROR-STATUS:ERROR and ERROR-STATUS:NUM-MESSAGES to determine if either error information is available or messages have been returned, even if ERROR is not raised. If either condition is true, this lets you view this information. ABL includes many errors that generate messages, but do no
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