Oracle JHeadstart Developer's Guide - Downloads - Oracle

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If the form item has an LOV associated the item display type will be set to “lov”, and a ListOfValues child element will be added to the JHeadstart item. The ListOfValues element will have child ReturnValue elements, one for each LOV Column Mapping in the form. 13.4.2.3. Region Containers, Item Regions and Group Regions Based on the placement of an item: • on a content canvas • on a stacked canvas • on a tab page • within a framed graphic and taking into account placement of parent and detail group items on the same canvas or tab page, or within the same framed graphic, the JFG will create the appropriate nested structure of region containers, item regions and group regions. The number of layout columns set on an item region, is based on the first line of items within the region in the original form. For example, if 3 items have the same Y position coordinate within the tab page or graphic, then the Columns property will be set to 3, regardless of the number of items on subsequent lines. 13.4.2.4. Domains A static domain will be created for the following form items: • Checkbox Items: a domain with two allowable values, the checked and unchecked value will be created. If the unchecked value is not set, the value ‘N’ is taken as unchecked value, since ADF only supports boolean value bindings for checkboxes that require both a checked and unchecked value. • List Items: for each list element an allowable value will be created within the domain • Radio group items: for each radio button element an allowable value will be created within the domain Note that the JFG will not create dynamic domains for drop down lists. This is not possible because Oracle Forms does not support Record Group Queries to be attached to drop down lists. To populate a drop down list with dynamic values in Oracle Forms, custom PL/SQL logic needs to be written. Since the JFG does not attempt to parse the PL/SQL logic, we cannot create dynamic domains for drop down lists. Subsequently drop down list items that are populated through PL/SQL will be created as a normal text item by the JFG. Of course, after you ran the JFG, you can easily change the text item into a drop down list and create the associated dynamic domain manually in the JHeadstart Application Definition Editor. JHeadstart Developer’s Guide Forms2ADF Generator 13 - 17
13.5. Handling Forms PL/SQL Logic 13.5.1. Moving PL/SQL Logic to the Database The JHeadstart Forms2ADF Generator allows you to “copy” the PL/SQL logic used in the form to the JHeadstart Application Definition, so you can easily see the logic in the editor, and determine what to do with it. Below we have listed common types of PL/SQL logic, with some suggestions on how you might handle it. Note that this is a high-level overview, not a detailed cookbook on how to handle each piece of PL/SQL logic. Always make sure you fully understand the PL/SQL logic before you take a final decision on how to re-implement it in the ADF/JHeadstart stack. • Canvas and window management logic: this kind of logic can typically be ignored, as it is specific to how Oracle Forms works. • Navigation logic: logic to navigate to detail windows within the same form can typically be ignored, since JHeadstart will generate buttons to navigate between parent and detail groups. Navigation logic to call other forms, passing along context parameter(s) used to query information in the called form can be implemented using the JHeadstart Deep Linking functionality. See chapter 6 “Generating User Interface Widgets” section 6.14 “Hyperlink to Navigate Context-Sensitive to Another Page (Deep Linking)” for more information. • Logic to implement conditionally dependent items: with this we mean PL/SQL logic that changes the user interface properties like required, enabled, or visible for one or more “dependent” items based on the value(s) of one or more “depends on” items. In other words, this kind of logic creates dynamic user interfaces that change based on the values you enter. JHeadstart offers extensive declarative support for conditionally dependent items. See chapter 6 “Generating User Interface Widgets”, section 6.12 “Conditionally Dependent Items” for more information. • Business rule logic: logic that causes error or messages or dialogs to be displayed when the user enters invalid data, or logic that automatically updates other values either directly in the form or by executing SQL DML statements (change event rules). This kind of logic can be implemented in ADF Business Components, as described in the Business Rules White Paper, or can be moved to the database (in case it is not yet implemented there). Reference: For information about enforcing business logic within the ADF BC Business Service, see the whitepaper Business Rules in ADF BC: otn.oracle.com/products/jdev/collateral/papers/10131/businessrulesinadfbc technicalwp.pdf When analyzing the PL/SQL logic in older forms, you might encounter a lot of PL/SQL logic to implement business rules or computations that might well be executed inside the Oracle Database. Using the “Move to database” icon in the JHeadstart Application Definition Editor, which is enabled when you select a PL/SQL program unit or trigger in the navigator tree, you can easily move such logic to the database. If you want to call out to PL/SQL procedures or functions that you moved to the database from a button in your ADF web page, you need to do the following: 13 - 18 Forms2ADF Generator JHeadstart Developer’s Guide
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ORACLE JHEADSTART 10g for ADF (RELE
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CONTENTS CHAPTER 1 GETTING STARTED
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4.7. Customizing Using Generator Te
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6.13.3. Generating the Button that
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CHAPTER 11 INTERNATIONALIZATION AND
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CHAPTER 1 Getting Started Developin
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1.1.3. What is Oracle JHeadstart? F
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1.2. Roadmap to Developing ADF Appl
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1.2.3. Design and Generate Web Page
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Web Reference: : Oracle Application
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CHAPTER 2 Set Up Project for Team-
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• The files that most often are m
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JHeadstart Developer's Guide Gettin
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• Create a New Application (choos
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2.2.4. Creating Database Connection
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2.3. Organizing JHeadstart Applicat
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2.4. Defining Java Package Structur
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CHAPTER 3 Creating ADF Business Com
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Reference: See the Oracle Applicati
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3.2. Creating the Entity Object Lay
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3.2.4. Generating Primary Key Value
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Weblog Steve Muench: “Why do I ge
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3.2.6. Implementing Business Rules
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2. Choose List Validator and enter
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3.3. Creating View Objects and Appl
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user action. The solution is shown
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It is also possible to let the user
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4. Make sure that the 'Mapped to Co
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Attention: You can have multiple le
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CHAPTER 4 Using JHeadstart T his ch
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4.1.1. Input Output • The type of
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4.2.2. Enabling JHeadstart on an ex
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4.3. Using the Create New Applicati
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4.4. Using the Application Definiti
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4.4.2. Service As you can see in th
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4.4.6. Regions An LOV is populated
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4.4.9. Manipulating Objects A dynam
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The new object is an exact copy of
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JHeadstart Developer’s Guide Usin
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You will see logging of what has be
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the radio button “Specify Host Na
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4.7. Customizing Using Generator Te
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• config/defaultTemplateBindings.
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VTL uses references to embed dynami
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In addition to the XSD attributes,
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Note that it only makes sense to cr
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4.8. Generating Mobile Applications
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4.8.5. Adding a View Type The jag-c
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CHAPTER 5 Generating Page Layouts T
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5.1.1. Hide Items on the Form Page
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Region layout style ‘horizontal
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managed bean Hashmap called createM
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Example In this example the Countri
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5.3.1. Hide Items in a Table The ge
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The example screenshot below shows
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5.3.6. Using Table Overflow Referen
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The above example shows the Employe
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When you choose a button for naviga
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5.5.1. Master-Detail on Separate Pa
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Note that the nested table could it
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So this is our database diagram: We
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Definition’ wizard. Anyway, you s
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8. By default, the tree is rendered
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Generating a tree for such a situat
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• Add a Query Where Clause to the
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• Regenerate. You should get this
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Warning: This issue (selecting a tr
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2. Create a new Dynamic Domain in t
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• An m:n relation exists between
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5.7.3. Understanding How JHeadstart
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5.8. Creating Wizard Layouts A wiza
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5.9. Changing the Overall Page Look
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After turning off the generation of
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5.9.3.2. Declaring the New Region T
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CHAPTER 6 Generating User Interface
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6.2. Default Display Value 6.2.1. U
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adio-vertical radio-horizontal edit
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6.4.2. Setting Maximum Length The n
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6.5.3. Dynamic dropdown list based
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6.7. Generating a List of Values (L
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In that case you must include all t
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3. Got to the newly created Locatio
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6.7.4. Use LOV for Validation 10. G
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the LINE_ITEM_ID of the ORDER_ITEMS
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When you have selected a row in the
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6.9. Generating a Checkbox You can
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6.10.1. Combining File Display Opti
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throw new JboException(e); } } retu
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6.11. Generating a Graph The values
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appearance of the graph changed to
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• Choose a value for the Clear/Re
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• In case of a table layout the d
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} } double convertedPercentage = ne
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As you can see, the buttons are inc
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6.13.4. Creating a Button that Call
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As you can see, the inputText and c
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6.14. Hyperlink to Navigate Context
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5. Insert inside the commandLink co
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6.15. Embedding Oracle Forms in JSF
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CHAPTER 7 Generating Query Behavior
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In the dropdown list, all the emplo
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6. Set the property Domain (on the
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Note that because of the value of t
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7.2.3. Using Advanced Search 7.2.4.
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• In the Departments View Object,
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Note the searchBinding managed prop
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7.3. Forcing a Requery 7.3.1. Imple
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CHAPTER 8 Generating Transactional
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8.1.3. Allowing the User to Insert
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8.3. Enabling Delete Example ‘Del
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8.5. Runtime Implementation of Tran
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8.5.4. Commit Handling The ‘Commi
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CHAPTER 9 Creating Menu Structures
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9.1.2. Preventing Generation of a M
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Another common scenario is to have
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9.2.2. Enabling Dynamic Menus You c
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• A SQL Script named DynamicMenuD
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For example, within the HRModule, l
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If you now restart the application,
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CHAPTER 10 Application Security A p
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10.1.2. JAAS Custom Login Module A
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10.1.4. Custom Security 10.1.5. ADF
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10.1.6. ADF BC Security • Regener
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You can right-mouse-click on the Jh
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10.3. Using JAAS-JAZN for Authentic
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Note that if you use the JDeveloper
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10.4.3. System-jazn-data.xml Note t
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10.4.5. Debugging the Custom Login
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10.5.3. Login Page and Login Bean 1
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Page 277 and 278: 11.4. Error Reporting The ADF SR De
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Page 281 and 282: 12.1. Creating the Database Tables
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Page 285 and 286: 12.2.3. Generating the Flex Region
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Page 289 and 290: Setting up another Item Region and
Page 291 and 292: 12.5. Internationalization and Flex
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Page 295 and 296: 13.1. Introduction into JHeadstart
Page 297 and 298: 13.2. Roadmap When you plan to use
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Page 303 and 304: 13.3.5. Processing the Selected For
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Page 307 and 308: 13.4. Understanding the Outputs of
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Page 317 and 318: lifecycle sequence. When you set th
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