Can you populate an ADF Tree using Just In Time ?

The application that I am currently working on requires a navigator.
This navigator will be a tree structure.
I have developed a prototype using standard Java Swing components - a JTree. The JTree is populated JIT (Just in Time), i.e. when a user clicks to expand a node the relevant database package is called to populate that branch of the tree. This process continues until the JTree has been expanded so that all of it's leaf nodes are displayed.
This works perfectly well in Swing, is it possible to acheive the same functionality using;
a) ADF Swing
b) ADF JSF
If so, and anyone has acheived this, I would appreciate any help/pointers/tutorials that you may have come across.
Thanks in advance for your help
David

Hi,
I think you can, but not using the default ADF tree bindings. You would have to create a custom tree model and then programmtically populate the model with data you access through ADF.
However, I understand your requirement is lazy loading of the child nodes. I will check with development if this feature is planned and if not file an enhancement request for the tree binding.
Frank

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[JHeadstart 10.1.3 build 78]
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"I am overriding JhsApplicationModule's advancedSearch in order to be able to search in childtables. I created transient attributes, display those in advanced search and in the overridden method I check if any of these are filled by the user and create a where clause like 'EXISTS (SELECT 1 FROM <childtable> WHERE <column in childtable> = <column in EO's table> AND <another column in childtable> LIKE '<value supplied by user>)'. I add this whereclause using ViewObject.setWhereClause.
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Toine"
Sandra Muller (JHeadstart Team) told me today: "This sounds like a JDeveloper/ADF issue that is not related to JHeadstart. The question is: how can you add a where clause using "OR" if there are already one or more ViewCriteria applied?
To simplify the test case, you could create a simple ADF BC test client class in a test Model project without JHeadstart (in the test class, use bc4jclient + Ctrl-Enter), in which you first apply a few ViewCriteriaRows to a View Object and also add a where clause.
Can you please log a TAR at MetaLink ( http://metalink.oracle.com/ ), or ask this question at the JDeveloper forum at http://otn.oracle.com/discussionforums/jdev.html ? (This what I am doing now ;-))
Thanks,
Sandra Muller
JHeadstart Team
Oracle Consulting"
Anyone knowing the answer or am I asking for an enhancement?
Toine

Hi,
Can you SET your whereclause as follows ?
('Y' = <isAnd>
and EXISTS (SELECT 1 FROM <childtable> WHERE <column in childtable> = <column in EO's table> AND <another column in childtable> LIKE '<value supplied by user>))
OR ('N' = <isAnd>
AND EXISTS (SELECT 1 FROM <childtable> WHERE <column in childtable> = <column in EO's table> OR <another column in childtable> LIKE '<value supplied by user>))
)

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