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  • Book Overview & Buying Oracle JDeveloper 11gR2 Cookbook
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Oracle JDeveloper 11gR2 Cookbook

Oracle JDeveloper 11gR2 Cookbook

By : Nick Haralabidis
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Oracle JDeveloper 11gR2 Cookbook

Oracle JDeveloper 11gR2 Cookbook

4 (5)
By: Nick Haralabidis
Buy this Book

Overview of this book

Oracle's Application Development Framework (ADF) for Fusion Web Applications leverages Java EE best practices and proven design patterns to simplify constructing complex web solutions with JDeveloper, and this hands-on, task-based cookbook enables you to realize those complex, enterprise-scale applications. With the help of real-world implementations, practical recipes cover everything from design and construction, to deployment, testing, debugging and optimization. This practical, task-based cookbook takes you, the ADF developer, on a practical journey for building Fusion Web Applications. By implementing a range of real world use cases, you will gain invaluable and applicable knowledge for utilizing the ADF framework with JDeveloper 11gR2. "Oracle JDeveloper 11gR2 Cookbook"ù is a task-based guide to the complete lifecycle of Fusion Web Application development using Oracle JDeveloper 11gR2 and ADF.You will get quickly up and running with concepts like setting up Application Workspaces and Projects, before delving into specific Business Components such as Entity Objects, View Objects, Application Modules and more. Along the way you will encounter even more practical recipes about ADF Faces UI components and Backing Beans, and the book rounds off by covering security, session timeouts and exceptions.With "Oracle JDeveloper 11gR2 Cookbook"ù in hand you will be equipped with the practical knowledge of a range of ready to use implementation cases which can be applied to your own Fusion Web ADF Applications.
Table of Contents (19 chapters)
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Oracle JDeveloper 11gR2 Cookbook
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Oracle JDeveloper 11gR2 Cookbook
Credits
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Credits
Foreword
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Foreword
About the Author
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About the Author
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
Prerequisites to Success: ADF Project Setup and Foundations
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Prerequisites to Success: ADF Project Setup and Foundations
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Introduction
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Installation of JDeveloper on Linux
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Breaking up the application in multiple workspaces
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Setting up BC base classes
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Setting up logging
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Using a custom exception class
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Using ADFUtils/JSFUtils
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Using page templates
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Using a generic backing bean actions framework
2
Dealing with Basics: Entity Objects
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Dealing with Basics: Entity Objects
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Introduction
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Using a custom property to populate a sequence attribute
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Overriding doDML() to populate an attribute with a gapless sequence
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Creating and applying property sets
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Using getPostedAttribute() to determine the posted attribute's value
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Overriding remove() to delete associated children entities
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Overriding remove() to delete a parent entity in an association
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Using a method validator based on a view object accessor
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Using Groovy expressions to resolve validation error message tokens
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Using doDML() to enforce a detail record for a new master record
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A Different Point of View: View Object Techniques
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A Different Point of View: View Object Techniques
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Introduction
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Iterating a view object using a secondary rowset iterator
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Setting default values for view row attributes
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Controlling the updatability of view object attributes programmatically
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Setting the Queryable property of a view object attribute programmatically
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Using a transient attribute to indicate a new view object row
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Conditionally inserting new rows at the end of the rowset
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Using findAndSetCurrentRowByKey() to set the view object currency
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Restoring the current row after a transaction rollback
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Dynamically changing the WHERE clause of the view object query
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Removing a row from a rowset without deleting it from the database
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Important Contributors: List of Values, Bind Variables, View Criteria
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Important Contributors: List of Values, Bind Variables, View Criteria
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Introduction
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Setting up multiple LOVs using a switcher attribute
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Setting up cascading LOVs
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Creating static LOVs
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Overriding bindParametersForCollection() to set a view object bind variable
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Creating view criteria programmatically
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Clearing the values of bind variables associated with the view criteria
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Searching case insensitively using view criteria
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Putting them all together: Application Modules
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Putting them all together: Application Modules
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Introduction
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Creating and using generic extension interfaces
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Exposing a custom method as a web service
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Accessing a service interface method from another application module
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A passivation/activation framework for custom session-specific data
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Displaying application module pool statistics
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Using a shared application module for static lookup data
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Using a custom database transaction
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Go with the Flow: Task Flows
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Go with the Flow: Task Flows
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Introduction
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Using an application module function to initialize a page
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Using a task flow initializer to initialize a task flow
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Calling a task flow as a URL programmatically
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Retrieving the task flow definition programmatically using MetadataService
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Creating a train
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Face Value: ADF Faces, JSF Pages, and User Interface Components
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Face Value: ADF Faces, JSF Pages, and User Interface Components
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Introduction
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Using an af:query component to construct a search page
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Using an af:pop-up component to edit a table row
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Using an af:tree component
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Using an af:selectManyShuttle component
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Using an af:carousel component
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Using an af:poll component to periodically refresh a table
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Using page templates for pop-up reuse
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Exporting data to a client file
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Backing not Baking: Bean Recipes
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Backing not Baking: Bean Recipes
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Introduction
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Determining whether the current transaction has pending changes
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Using a custom af:table selection listener
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Using a custom af:query listener to allow execution of a custom application module operation
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Using a custom af:query operation listener to clear both the query criteria and results
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Using a session scope bean to preserve session-wide information
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Using an af:popup during long running tasks
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Using an af:popup to handle pending changes
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Using an af:iterator to add pagination support to a collection
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Handling Security, Session Timeouts, Exceptions, and Errors
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Handling Security, Session Timeouts, Exceptions, and Errors
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Introduction
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Enabling ADF security
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Using a custom login page
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Accessing the application's security information
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Using OPSS to retrieve the authenticated user's profile from the identity store
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Detecting and handling session timeouts
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Using a custom error handler to customize how exceptions are reported to the ViewController
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Customizing the error message details
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Overriding attribute validation exceptions
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Deploying ADF Applications
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Deploying ADF Applications
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Introduction
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Configuring and using the Standalone WebLogic Server
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Deploying on the Standalone WebLogic Server
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Using ojdeploy to automate the build process
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Using Hudson as a continuous integration framework
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Refactoring, Debugging, Profiling, and Testing
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Refactoring, Debugging, Profiling, and Testing
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Introduction
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Synchronizing business components with database changes
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Refactoring ADF components
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Configuring and using remote debugging
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Logging Groovy expressions
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Dynamically configuring logging in WebLogic Server
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Performing log analysis
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Using CPU profiler for an application running on a standalone WebLogic server
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Configuring and using JUnit for unit testing
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Optimizing, Fine-tuning, and Monitoring
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Optimizing, Fine-tuning, and Monitoring
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Introduction
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Using Update Batching for entity objects
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Limiting the rows fetched by a view object
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Limiting large view object query result sets
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Limiting large view object query result sets by using required view criteria
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Using a work manager for processing of long running tasks
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Monitoring the application using JRockit Mission Control

Using ADFUtils/JSFUtils

In this recipe, we will talk about how to incorporate and use the ADFUtils and JSFUtils utility classes in your ADF application. These are utility classes used at the ViewController level that encapsulate a number of lower level ADF and JSF calls into higher level methods. Integrating these classes in your ADF application early in the development process, and subsequently using them, will be of great help to you as a developer and contribute to the overall project's clarity and consistency. The ADFUtils and JSFUtils utility classes, at the time of writing, are not part of any official JDeveloper release. You will have to locate them, configure them, and expand them as needed in your project.

Getting ready

We will be adding the ADFUtils and JSFUtils classes to the SharedComponents ViewController project that we developed in the Breaking up the application in multiple workspaces recipe in this chapter.

How to do it…

  1. 1. To get the latest version of these classes, download and extract the latest version of the Fusion Order Demo application in your PC. This sample application can be found currently in the Fusion Order Demo (FOD) - Sample ADF Application page at the following address: http://www.oracle.com/technetwork/developer-tools/jdev/index-095536.html.

  2. 2. The latest version of the Fusion Order Demo application is 11.1.2.1 R2 at the time of this writing and is bundled in a zipped file. So go ahead download and extract the Fusion Order Demo application in your PC.

  3. 3. You should be able to locate the ADFUtils and JSFUtils classes in the location where you have extracted the Fusion Order Demo application. If multiple versions of the same class are found, compare them and use the ones that are most up-to-date. For this recipe, we have included in the source code the ADFUtils and JSFUtils found in the SupplierModule\ViewController\src\oracle\fodemo\supplier\view\utils directory.

  4. 4. Copy these classes to a specific location in your shared ViewController components project. For this recipe, we have copied them into the SharedComponents\SharedViewController\src\com\packt\jdeveloper\cookbook\shared\view\util directory.

  5. 5. Once copied, open both files with JDeveloper and change their package to reflect their new location, in this case to com.packt.jdeveloper.cookbook.shared.view.util.

How it works…

The public interfaces of both ADFUtils and JSFUtils define static methods, so you can call them directly without any class instantiations. The following are some of the methods that are commonly used.

Locating an iterator binding

To locate an iterator in the bindings, use the ADFUtils.findIterator() method. The method accepts the bound iterator's identifier and returns an oracle.adf.model.binding.DCIteratorBinding. The following is an example: 

DCIteratorBinding it = ADFUtils.findIterator("IteratorID");

Locating an operation binding

To locate an operation in the bindings, use the ADFUtils.findOperation() method. This method accepts the bound operation's identifier and returns an oracle.binding.OperationBinding. 

OperationBinding oper = ADFUtils.findOperation("OperationID");

Locating an attribute binding

Use ADFUtils.findControlBinding() to retrieve an attribute from the bindings. This method accepts the bound attribute's identifier and returns an oracle.binding.AttributeBinding. 

AttributeBinding attrib = ADFUtils.findControlBinding("AttributeId");

Getting and setting an attribute binding value

To get or set a bound attribute's value, use the ADFUtils.getBoundAttributeValue() and ADFUtils.setBoundAttributeValue() methods respectively. Both of these methods accept the identifier of the attribute binding as an argument. The getBoundAttributeValue() method returns the bound attribute's data value as a java.lang.Object. The setBoundAttributeValue() method accepts a java.lang.Object and uses it to set the bound attribute's value. 

// get some bound attribute data
String someData = (String)ADFUtils.getBoundAttributeValue("AttributeId");
// set some bound attribute data
ADFUtils.setBoundAttributeValue("AttributeId", someData);

Getting the binding container

You can get the oracle.adf.model.binding.DCBindingContainer binding container by calling the ADFUtils.getDCBindingContainer() method. 

DCBindingContainer bindings = ADFUtils.getDCBindingContainer();

Adding Faces messages

Use the JSFUtils.addFacesInformationMessage() and JSFUtils.addFacesErrorMessage() methods to display Faces information and error messages respectively. These methods accept the message to display as a String argument. 

JSFUtils.addFacesInformationMessage("Information message");
JSFUtils.addFacesErrorMessage ("Error message");

Finding a component in the root view

To locate a UI component in the root view based on the component's identifier, use the JSFUtils.findComponentInRoot() method. This method returns a javax.faces.component.UIComponent matching the specified component identifier. 

UIComponent component = JSFUtils.findComponentInRoot("ComponentID");

Getting and setting managed bean values

Use the JSFUtils.getManagedBeanValue() and JSFUtils.setManagedBeanValue() methods to get and set a managed bean value respectively. These methods both accept the managed bean name. The JSFUtils.getManagedBeanValue() method returns the managed bean value as a java.lang.Object. The JSFUtils.setManagedBeanValue() method accepts a java.lang.Object and uses it to set the managed bean value. 

Object filePath = JSFUtils.getManagedBeanValue ("bindings.FilePath.inputValue");
JSFUtils.setManagedBeanValue("bindings.FilePath.inputValue", null);
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