ADF Code Corner Sample #70 released – “How-to build ADF dependent list boxes with Web Services”
By frank.nimphius | January 21, 2011
A frequent question asked on the Oracle JDeveloper forum on OTN is how to create dependent select lists using ADF and Web Services as the business service. In this article, I walk you through building a sample that uses dependent choice lists from a POJO Web Service
model.
Frank
Topics: ADF, ADF Faces RC, JDeveloper | No Comments »
ADF Code Corner Sample #69 released: How-to create a custom LOV using bounded task flows
By frank.nimphius | January 19, 2011
Model driven list of values in ADF Business Components allow developers to build searchable select lists that open in a lightweight DHTML dialog. However, what if the list of value dialog is a multi step proces or needs a special layout or functionality? In this blog article I show how to create a custom list of value using a bounded task flow that opens in a dialog using the external dialog framework. This article also shows how to globally remove the the close icon from those list fo value dialogs so users must exit the dialog using the command provided in the dialog.
Frank
Topics: ADF, ADF Faces RC | No Comments »
ADF Code Corner Sample 68 released: “Solving the known range change event problem in ADF contextual events”
By frank.nimphius | January 16, 2011
Contextual events is an ADF binding feature that provides a public-subscribe communication channel for regions to interact with other regions or the parent view they reside in. Contextual events are usually invoked in response to a user action on a component,but may also be invoked from Java. Bug reports a problem with row change events published as contextual events in response to users selecting a table row different from the current. While waiting for the bug fix, which may not be before Oracle JDeveloper 11.1.1.6, I describe the work around that also explains some apsects of contextual events.
Frank
Topics: ADF, ADF Faces RC | No Comments »
ADF Code Corner: Sample 67 released – How-to create a query form in a popup dialog
By frank.nimphius | January 12, 2011
In this article I explain how to create a search form that opens in an af:popup dialog. Defining the search criteria and executing the query closes the dialog and refreshes the table. The solution uses the af:query component for building the searchform, which is a simple and straight forward approach that many may not be aware of
Frank
Topics: ADF, ADF Faces, ADF Faces RC | No Comments »
ADF Code Corner JDeveloper OTN Harvest December 2010 released
By frank.nimphius | December 23, 2010
The Oracle JDeveloper forum is in the Top 5 of the most active forums on the Oracle Technology Network (OTN). The number of questions and answers published on the forum is steadily increasing with the growing interest in and adoption of the Oracle Application Development Framework (ADF).
The ADF Code Corner “Oracle JDeveloper OTN Harvest” series is a monthly summary of selected topics posted on the OTN Oracle JDeveloper forum. It is an effort to turn knowledge exchange into an interesting read for developers who enjoy harvesting little nuggets of wisdom.
Read the December 2010 Issue : http://www.oracle.com/technetwork/developer-tools/adf/learnmore/dec2010-otn-harvest-199274.pdf
Merry Christmas and a Happy New Year 2011 !
Frank
Topics: ADF, ADF Faces, ADF Faces RC, JDeveloper, Taskflow | No Comments »
ADF Code Corner Sample 66 released: “How-to color-highlight the bar in a graph that represents the current row in a collection”
By frank.nimphius | December 13, 2010
An ADF Faces Data Visualization Tools (DVT) graphs can be configured to change the current row in the underlying collection when a user click into it. This allows developers to implement master-detail behavior between a graph as the master and a form or a table as the detail. However, there is no visual indication for the chart item, for example a bar in a bar chart, the user clicked on.
Also, navigating the underlying collection and partially refreshing the graph does not highlight the bar representing the current row.
This article explains how to highlight the current row in a bar chart for users to have a visual feedback.
Frank
Topics: ADF, ADF Faces RC | No Comments »
ADF Code Corner Sample 65. “Active Data Service Sample Twitter Client” released
By frank.nimphius | December 1, 2010
Active Data Service is a push event framework in Oracle ADF Faces that allows developers to implement real time server to client notification when a server side event, like RDBMS change notification or twitter stream notification, occurs.
Unlike other technologies in Oracle ADF, Actice data Services (ADS), except for the BAM Data Control, is not a declarative implementation and instead requires developers to write a fair amount of Java. This ADF Code Corner articles provides an Active Data Services sample that listens for Twitter messages of registered friends. Friends are registered within the part of the sample code that starts a Twitter4J instance to start the active service.
Frank
Topics: ADF Faces | No Comments »
ADF Code Corner OTN JDeveloper Harvest November 2010 issue released
By frank.nimphius | November 29, 2010
The Oracle JDeveloper forum is in the Top 5 of the most active forums on the Oracle Technology Network (OTN). The number of questions and answers published on the forum is steadily increasing with the growing interest in and adoption of the Oracle Application Development Framework (ADF).
The ADF Code Corner “Oracle JDeveloper OTN Harvest” series is a monthly summary of selected topics posted on the OTN Oracle JDeveloper forum. It is an effort to turn knowledge exchange into an interesting read for developers who enjoy harvesting little nuggets of wisdom.
Find the November 2010 issue here.
Frank
Topics: ADF Faces, JavaServer Faces | No Comments »
Sample #64 “How-to implement an ADF bound Select Many Shuttle with pre- selected values” released on ADF Code Corner
By frank.nimphius | November 22, 2010
The ADF binding layer currently only supports a single current row which works for single select lists updating he model. For multi select lists, developers need to manually perform the model update for user selected values. In this article, we show how to build an ADF bound Select Many Shuttle component that displays employees within a selected department as pre-selected values, allowing users to relocate other employees from the list of all employees to this department. The Oracle JDeveloper sample can be downloaded from ADF Code Corner as well
Frank
Topics: ADF, ADF Faces RC | No Comments »
ADF Code Corner Sample #63 released: How-to save DVT graphs to a file
By frank.nimphius | October 27, 2010
ADF Faces Data Visualization components render in different formats – Flash, SVG and PNG – dependent on the format setting defined by the application developer. To download graphs, or to merge them into documents, it is also possible to export graphs to an image file on the server. This how-to article provides a sample of how to export a bar graph to a PNG image file format.
Frank
Topics: ADF, ADF Faces | No Comments »
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