On the dark side, the full source code of the book is not available for download, with only a few exceptions. The errata page has vanished for a while, so an older version perhaps incomplete, is available here. The book has not a tutorial step by step, practice on your own form, like the one by D. Mills. Sometimes, the paragraphs are so long and purely theoretical, that reading becomes tedious.
All in all, the book seems like a brief printed synopsis, of the official Oracle fusion Developer guide pdf file, available online for free in OTN. Whether you would like to have a printed version of it as well, is only up to you!
Further critical references concerning ADF:
Tales from the trenches by Dr. Dorsey. Coauthor of JDeveloper 10g handbook.
Performance and scalability criticism by several authors
ERRATA: "Oracle Fusion Developer Guide - Building Rich Internet Applications with Oracle ADF Business Components and ADF Faces" (ISBN - 978-0-07-162254-7)
Chapter 01:
Page 27 | Addition to using scope prefixes in EL when reading memory scope attributes |
The book has it correct. However, we want to make sure memory scope prefixes are understood correctly and that there is no question left open in regards to managed beans: Accessing a managed bean in a standard servlet scope like sessionScope or requestScope using the scope as a prefix fails if the bean instance does not exist. Thus, bean reference like #{sessionScope.myBean} may fail while #{myBean} always succeeds. The reason for this is that #{sessionScope….} and #{requestScope…} reference a Map in memory and not the JSF framework. Managed beans must be instantiated before they become available in the memory scope, which means they need to be accessed through JSF. Luckily, JSF does not allow to configure two managed beans with the same name in different scopes. So even without a scope prefix, there is no risk that application code accidentally accesses the wrong object.. Note that using ADFc specific scope, like viewScope and pageFlowScope, you always need to use the scope name as a prefix in the EL. |
Chapter 03:
Page 100 | Use Case; Using af:subform in ADF Forms - new sample provided |
A complimentary sample is posted on ADF Code Corner implementing this use case: See it here |
Chapter 05:
Page 168 | Creating and Registering a custom Exception Handler |
The custom exception handler example extends AdfcExceptionHandler, which is a class in an internal package. The risk associated with classes in internal packages is that changes may be made by Oracle without further notice. Oracle updated the upcoming version of the product documentation, "Oracle Fusion Middleware Fusion Developer's Guide for Oracle Application Development Framework 11g" with a sample that explains how to configure custom exception handlers, following our example in the book. They corrected the use of AdfcExceptionHandler by using ExceptionHandler, the class that is good to use with no strings attached. The sample thus would look like import javax.faces.context.ExternalContext; Note that using ExceptionHandler, the handleException method does not call super.handleException(...) but throws the exception so it is handled by the next registered exception handler, which most likely then is the internal AdfcExceptionhandler instance. The ExceptionHandler, class does not implement the handleException method itself and only acts as a template for defining ADF task Flow exception handlers.
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Chapter 06:
Page 199 | Accessing the Task Flow Binding from Java |
The code example casts the Task Flow Binding to DCTaskFlowBinding, which is an internal class used by the ADF framework. To avoid using internally packaged classes, yu can cast the region binding to DCBindingContainer, which is the public framework class that DCTaskFlowBinding extends. BindingContext bctx = BindingContext.getCurrent(); The primary use of accessing the region binding is to get a hold of the referenced binding container and its defined bindings, which you can also do using the DCBindingContainer. There is some more infromation available using DCTaskFlowBinding, but these you can get from other APIs, like ControllerContext as well.
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Chapter 09:
Page 309 | Note says: If the table is a child of the af:panelCollection component, then an implementation of the multiple column sort use case already exists using the PanelCollection View | Sort | Advanced menu option |
The book has it correct and the functionality exists. However, you need to set the table column selection to either single or multiple. This is not apparent because within the chapter, the column selection is enabled at the beginning to handle a different use case. The requirement to enable column selection has nothing to do with sorting but exists in the current JDeveloper 11g release. A bug has been filed to lift this requirement. | |
Page 309 | Selection Event |
The example shows you how to synchronize the table component row selection with the current row in ADF binding layer using Exression Language. If you prefer a pure Java solution, we released a generic Java handler example on ADF Code Corner: read more. | |
Page 296 | How to navigate in specific row in table. |
ADF Code Corner has an improved version of the sample in the book that is worth looking at. The sources are available for dwenload as well. See here. A related sample is here. | |
Page 281 | "invokeMethodBinding" should be "invokeMethodExpression" |
Chapter 9 uses a helper method to invoke method expression. The main method "invokeMethodExpression" has a overloaded method with a simplified signature. Unfortunately the name of this method in the book is "invokeMethodBinding". It should however look as shown below to work with the samples given in the book /** So please put a note on the first method name that the name has changed as shown above. | |
Page 311 | What You Should Know About the Data That Is Exported to Excel |
In this section of the book we provide a hint of how to add an Excel fomular to the exported table cell data so that it gets propery formatted when opened in Excel.This hint stopped working in the latest release of Oracle JDeveloper, which is Oracle JDeveloper 11g R1 PS2 (build number is Build JDEVADF_11.1.1.3.PS2_GENERIC_100408.2356.5660) because of a bug fix that prevents the export of hidden output text content. We assume that it requires a new enhancement request to properly implement the option to add excel formulars (adn some users unfortunately already started suffering from the side effect this bug fix has - including this book). |
Chapter 15:
Page 483 | Typo "exiting" instead of "existing" |
Luc Bors from Amis in the Netherlands found this interesting typo in the book: “A standard JSF component that is built from exiting ADF Faces Components …” . This of course should be "A standard JSF component that is built from existing ADF Faces Components ..." | |
Chapter 19:
Page 601 | Registering the adf-js-partition.xsd Schema |
The adf-js-partitions.xsd schema has been moved to <wls_jdev_install>\oracle_common\modules\oracle.adf.view_11.1.1\adf-richclient-api-11.jar | |
Page 601 | Creating te adf-js-partitions.xml file |
The custom adf-js-partitions.xml file structure has a typo and wrong xml tag. The correct XML is shown below
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