This class is essentially a wrapper for the built-in SOAP-fault object.3. However, the CATCH block concludes with the UNDO, THROW statement that directs the block enclosing the DO block to handle the eSystemError object. Assigns a handle variable (hSoapFault) to the SOAP-fault object returned by the AVM for code readability.4. With this model, both system and application errors can raise a single ERROR condition. have a peek here
Complete description of BLOCK-LEVEL ON ERROR UNDO, THROW From the manual: Syntax BLOCK-LEVEL ON ERROR UNDO, THROW. The ABL also has a new error handling model, introduced in OpenEdge Version 11.0, called structured error handling. See Trademarks or appropriate markings. Using this option, you can throw a current system or application error object, or throw a new application error object that you create. https://documentation.progress.com/output/ua/OpenEdge_latest/dverr/what-is-abl-structured-error-handling-3f.html
To avoid this difference, either change the scope of the transaction so that it completes more quickly or make the key nonunique and enforce uniqueness at the application level. When the system detects an error in a try block, it will execute the code in the catch block that matches the error. END CATCH. You can, in fact, use both structured and traditional error handling in the same application.
Default error handling is provided by an implicit ON ERROR phrase. Am I right to think this homework problem on counting triangles within a 4x4 grid is improperly set out? An explicit setting of the ON ERROR phrase for the block4. All rights Reserved.
OpenEdge Development: Error HandlingIntroduction to Condition Handling : Structured error handling : What is ABL structured error handling?What is ABL structured error handling?Since ABL is a block structured language, ABL has Progress 4gl Exception Handling Both forms of error handling are fully documented in OpenEdge Development: Error Handling.In this section: ERROR-STATUS system handle Error handling RETURN statement and ON . . . but I wonder if there is another way to do it. https://documentation.progress.com/output/ua/OpenEdge_latest/dverr/openedge-development-3a-error-handling.html All rights Reserved.
You then might raise ERROR based on the message contents to affect a transaction.This ABL traditional error handling model is efficient and works in many application situations. asked 2 years ago viewed 1446 times active 2 years ago Blog How Do Software Developers in New York, San Francisco, London and Bangalore… Related 1Good literature on Progress 4GL0Is there Explicit error handling for blocks is provided by an ON ERROR phrase and its many options. Progress® OpenEdge® Release 11.6 OpenEdge Development: Object-oriented ProgrammingProgramming with Class-based Objects : Raising and handling error conditions : Structured and traditional error handlingStructured and traditional error handlingAs a general feature of
Removing unwanted Linestrings from Multilinestring in Postgis Truth Stone: Effects on the justice system, and criminal world The Detect Thoughts spell is trivializing social encounters. https://documentation.progress.com/output/ua/OpenEdge_latest/dmodb/error-handling.html This model provides a consistent mechanism for handling both application and system errors using standardized class-based error objects. Progress 4gl Error Handling IF ERROR-STATUS:ERROR THEN UNDO, THROW NEW Progress.Lang.AppError("Can't find this customer", 550). As a result, the procedure reprompts the user for a customer number after the inner transaction completes:If you use NO–ERROR to do your own error handling, you must account for the
IF ERROR-STATUS:ERROR THEN DO: MESSAGE "error: number of messages = " ERROR-STATUS:NUM-MESSAGES.DO ix = 1 TO ERROR-STATUS:NUM-MESSAGES: MESSAGE "error" ERROR-STATUS:GET-NUMBER(ix) ERROR-STATUS:GET-MESSAGE (ix). navigate here Here is a simple example:DO ON ERROR UNDO, RETURN: FIND FIRST Customer WHERE CustNum = 1000. How to serve your dragon? It allows you to customize application error objects with application-specific data, and the model is fully compatible with the ERROR condition mechanisms of traditional error handling.
Encloses the logic in a simple block to demonstrate the placement and syntax of the CATCH block. CATCH eAnyError AS Progress.Lang.AppError: MESSAGE "Error Number:~t" eAnyError:GetMessageNum(1) "~n" "Error Text:~t" eAnyError:GetMessage(1) VIEW-AS ALERT-BOX BUTTONS OK TITLE "Processing of the error thrown by the UNDO, THROW statement". Steps to ReproduceClarifying Information Error MessageDefect/Enhancement NumberCause Resolution In general, an error may be thrown using the THROW option of the DO ON ERROR statement. For example: DO ON ERROR UNDO, Check This Out Why are some people so paranoid about music theory?
Unhandled error objects are deleted automatically by the AVM.10. The two error models are fully compatible, even though each model handles errors differently. Executes the FINALLY block whether the second CATCH block succeeded or failed.
END block without transaction or error handling options). ASSIGN customer.name = "Smith" NO-ERROR. and/or other countries. Delete or throw the error object in the application code once it is handled by a CATCH block.
In other words, when an error occurs in a called context, you can direct the calling context to handle the errorAllows you to specify code that executes at the conclusion of CATCH eSystemError AS Progress.Lang.SysError: MESSAGE "Not a valid customer number.".UNDO, THROW eSystemError.END CATCH.END. /* DO */The explicit ON ERROR phrase defines error handling for the block. END. CATCH eAnyError AS Progress.Lang.Error: MESSAGE "Error Number:~t" eAnyError:GetMessageNum(1) "~n" "Error Text:~t" eAnyError:GetMessage(1) VIEW-AS ALERT-BOX BUTTONS OK TITLE "Error processing in the CATCH for mainprocedure block". this contact form CATCH err AS Progress.Lang.Error: MESSAGE "Error: " err:GetMessage(1) VIEW-AS ALERT-BOX ERROR.
Also, an error may be thrown using the ROUTINE-LEVEL ON ERROR UNDO, THROW statement. For example: ROUTINE-LEVEL ON ERROR UNDO, THROW. DO: FIND FIRST Customer WHERE Customer.CustNum = 99999. But I keep this answer for later. Examines the values of SOAP fault elements, as required, using appropriate attributes (SOAP-FAULT-CODE) on the SOAP-fault object handle.5. progress-4gl share|improve this question edited Apr 17 '14 at 8:04 Bathsheba 90.2k11102170 asked Apr 17 '14 at 8:03 doydoy44 4,45431138 add a comment| 1 Answer 1 active oldest votes up vote
Progress® OpenEdge® Release 11.6 OpenEdge Getting Started: ABL EssentialsManaging Transactions : Using the UNDO statement : Handling the ERROR conditionHandling the ERROR conditionYour application can encounter an error condition whenever the So, to check for an error on a built-in handle method call, you must always check the ERROR-STATUS handle for the presence of a message after the call.