Programming Guide - Actian

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How You Can Use Break ConditionsWhen a break condition occurs, control passes to the Debugger so that youcan examine the state of the program.The OpenROAD Debugger recognizes the following types of break conditions:• Source Breakpoints (see page 448)• Event Break Conditions (see page 450)• Error Break Conditions (see page 452)• Call Break Conditions (see page 454)• Method Invocation Break Conditions (see page 455)• Thread Start Breakpoints (see page 455)Debug TabYou use the Debug tab of the OpenROAD Workbench to view, set, deactivateand reactivate, and delete break conditions. The application that is selected onthe Applications portlet of the Develop tab is the application whosecomponents will be displayed on the Debug tab.Source components of the selected application are displayed in theComponents portlet of the Debug tab. The component selected in theComponents portlet is displayed in the Source Breakpoints portlet. This portletis where you can view, set, and delete source breakpoints.Break ConditionsSet Break ConditionsYou can set, deactivate, or delete break conditions. See the following sectionsfor instructions.You set break conditions in a component script on the Debug tab of OpenROADWorkbench.To set a break condition1. Click the Develop tab and select the application you want to debug in theApplications portlet.2. Click the Debug tab.The components of the selected application are displayed in the SourceComponents portlet on the left side of the window.446 <strong>Programming</strong> <strong>Guide</strong>
How You Can Use Break Conditions3. Select the component in whose script you want to set a breakpoint.The script for the component is displayed in the Source Breakpoints portleton the right side of the window.4. Click the line number where you want to set the breakpoint.You can also set source breakpoints using the View Processed Script option inthe Frame Editor or the 4GL Procedure Editor.For more information about types of break condition, see the appropriatesection.Deactivate and Reactivate Break ConditionsYou can deactivate a break condition without deleting it.To deactivate a break condition1. Click the Develop tab and select the application containing the componentwith break conditions in the Applications portlet.2. Click the Debug tab.The components of the selected application are displayed in the SourceComponents portlet on the left side of the window.3. (Optional.) Select the component in whose script you want to deactivate abreakpoint condition.The script for the component is displayed in the Source Breakpoints portleton the right side of the window.4. Click the Activations portlet tab on the left side of the window.5. Click the check box for the condition you want to deactivate so that it isunchecked.The Debugger will ignore a break condition while it is deactivated.The deactivated breakpoint is still marked in the script, but is displayed only asan outline:To reactivate a deactivated break condition1. Click the Develop tab and select the application containing the componentwith break conditions in the Applications portlet.2. Click the Debug tab.The components of the selected application are displayed in the SourceComponents portlet on the left side of the window.Debugging Your Application 447
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Ingres OpenROAD ® 2006Programming
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ContentsChapter 1: Introduction 13I
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Using an Object-oriented Approach t
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How You Can Retrieve Array Informat
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Chapter 12: Managing Event Queues 3
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Chapter 17: Preprocessing Your 4GL
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Chapter 1: IntroductionThis section
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ConventionsConventionsThe following
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Your Support OptionsYour Support Op
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OpenROAD NamesThe rules for these n
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OpenROAD Names3. Enclosing field sc
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OpenROAD NamesThe following code ex
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VariablesThe following illustrates
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VariablesIn the first example, film
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VariablesOpenROAD checks references
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VariablesHow You Can Declare Dynami
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VariablesFor example, assume that y
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ExpressionsHowever, you cannot use
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ExpressionsThe general syntax for h
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ExpressionsCurSessionSpecifies, for
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ExpressionsString OperatorThe conca
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ExpressionsOperatorlikenot likeOper
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Expressions• You can use the esca
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ExpressionsBecause procedures can r
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System-defined FunctionsThis rule h
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System-defined FunctionsNameOperand
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System-defined FunctionsName Operan
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System-defined FunctionsNameshift(c
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System-defined FunctionsSome date f
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System-defined FunctionsThe followi
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System-defined FunctionsCount Funct
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System-defined FunctionsResult Data
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Chapter 3: Writing Scripts and Proc
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ScriptsDeclare local variables that
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ScriptsUserEventSpecifies a user ev
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ScriptsExample—Field and Menu Ite
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ProceduresOpenROAD lets you create
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ProceduresReturning from a Procedur
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ProceduresExample—Local Procedure
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Procedures4GL DataTypedatemoneyfloa
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Calling Procedures• In this call
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Calling ProceduresparameterAssigns
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How Procedure Handles Work (ProcHan
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Compiler LimitationsYou can avoid t
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How You Can Invoke FramesHow the Cu
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How You Can Invoke FramesHow You Ca
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How You Can Invoke FramesFor more i
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How You Can Invoke FramesFor exampl
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How You Can Invoke FramesIf the obj
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How You Can Invoke FramesHow You Ca
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How You Can Invoke Frames• Prompt
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How You Can Invoke FramesThe syntax
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How You Can Run Non-interactive App
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How You Can Reference ObjectsHow Yo
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How You Can Reference ObjectsHow Yo
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How You Can Reference ObjectsUse an
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Using an Object-oriented Approach t
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InheritanceClass RelationshipsYou c
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InheritanceYou can specify a user c
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InheritanceThe Terminate method is
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How You Can Create a User ClassWhen
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How You Can Create a User ClassHow
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How You Can Create a User Class3. G
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How You Can Create a User ClassTo e
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External ClassesHow You Can Use Ext
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External ClassesExample—ActiveX C
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How You Can Manipulate Objects Gene
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Overview of the OpenROAD System Cla
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How You Can Access a Database with
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How You Can Manage TransactionsHow
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How You Can Manage TransactionsDivi
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How You Can Manage TransactionsTo c
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How Programming for Multiple Sessio
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Handling Database ErrorsIn OpenROAD
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Handling Database ErrorsIf a databa
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Handling Database ErrorsFor example
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Handling Database Errorsbeginerr_no
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Arrays and Table Fields—Conceptua
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ArraysBecause an individual attribu
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ArraysDeclaring an array variable d
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ArraysThe following statement puts
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Arraysfor i = custtable.FirstRow to
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ArraysHow You Can Add Rows to an Ar
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ArraysThe inserted row is blank bec
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ArraysThe following code fragment i
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ArraysThese attributes are:AllRowsR
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ArraysAttributes used in a sort can
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ArraysThe format parameter can be a
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Table FieldsTable Fields and Associ
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Table FieldsThe following applicati
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Table FieldsThis syntax references
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Table FieldsFor example, the follow
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Table Field OperationsTable Field C
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Table Field OperationsHow You Can U
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Table Field OperationsWhen you use
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Table Field OperationsBiases can be
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Table Field OperationsThe following
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Table Field OperationsHow You Can T
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Table Field OperationsTableField Me
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Table Field OperationsFor example,
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Table Field OperationsControlling M
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CollectionsCollectionsA collection
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Collections// Open a workbook and p
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Listview_Treeview_DemoImport the De
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Listview FieldsListview FieldsA lis
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Listview FieldsextensionSpecifies a
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Listview FieldsImageIndexSpecifies
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TreeNode and Tree ClassesHeaderClic
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TreeNode and Tree ClassesMaintenanc
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Treeview FieldsHow You Can Build a
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Treeview FieldsThe second window is
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Treeview FieldsThe tree_ex2_class h
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Chapter 9: Working with Images and
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How You Can Work with ImagesThe fol
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How You Can Work with ImagesThe Col
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How You Can Work with ImagesThe Bit
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How You Can Work with Images5. Add
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How You Can Work with Text StringsD
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How You Can Work with Text StringsH
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How You Can Call 3GL ProceduresIn t
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How You Can Use Exec 4GL Statements
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How You Can Link 3GL ProceduresHow
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Sample 3GL ProceduresExec 4GL and E
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How You Can Use Data Entry Error Ha
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Chapter 12: Managing Event QueuesTh
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Event-based ProgrammingThe followin
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Event-based ProgrammingEvent TypesT
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Event-based ProgrammingField Events
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Event-based ProgrammingBecause all
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Event-based ProgrammingThe followin
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Event-based ProgrammingThe resume s
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Event-based ProgrammingNote: The da
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Communicating Between OpenROAD Fram
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How You Can Communicate with an Ext
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How You Can Communicate Between Ope
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How You Can Communicate Between Ope
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Chapter 14: Creating Dynamic Frames
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How You Can Change Field and Frame
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How You Can Create and Modify Field
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How You Can Remove Fields Dynamical
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How You Can Declare a Composite Fie
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How You Can Manipulate Data in Dyna
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How You Can Manage Operations with
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How You Can Build a Frame Dynamical
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How You Can Build a Frame Dynamical
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Page 435 and 436: PreprocessorGeneral Preprocessor St
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Page 439 and 440: Error ProcessingGuidelines for Usin
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Page 465 and 466: How Debugging an Application WorksS
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Page 483 and 484: Appendix A: SQL Syntax SummaryThis
Page 485 and 486: SQL Syntax Summarygrant all [privil
Page 487: OpenSQL Syntax SummaryOpenSQL Synta
Page 490 and 491: Operating System CommandsThe follow
Page 492 and 493: BitmapObject classThe BitmapObject
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local variableLocal variables conta
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StringObject classThe StringObject
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Index'' ' (single quotation marks)c
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Attributesdefined • 28referencing
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using to copy data • 244using wit
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application threads • 444array di
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examining values • 473hexadecimal
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Gmoney • 51numeric list • 53pad
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Namesapplication • 21dynamic •
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ReadOps attributesettings • 243Re
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concat function • 54functions •
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event chains • 323event queue •
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