One application module with 3 differente data base connections

I have 3 different servers for data base connections. The main is "sys", the second "stanby" and the third: "bdbatch". In the old application,that i m re programating, uses a properties to read the connection. If the main is not available then goes to the stanby an then to the third. With this new application with adf i have to do the same. So how can i configure the application module to do this? do i have to make extra code? or just configure an xml file??

i faced this problem before in Dynamic JDBC Credentials topic solution provided by Steve Muench (to make your AM Databse Connection to be dynamic as you need).
http://smuenchadf.samplecode.oracle.com/samples/11gDynamicCredentials.zip
Note : Example Contains the Full JDBC Connection String in dynamic way
i finished this solution in my App and Successed.
Thanks

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Only a connection with the data base

I have an application MDI - opening of some windows at the same time.
I use framework ADF Oracle - Swing/ADF JClient.
For each new JInternalFrame a BindingContext (bootstrap) is servant, with this a new connection in the data base is created. Already I tried to use the same, but generally an action in a screen intervenes with the other.
How I can make this (application MDI - ADF) only having a connection in the database?
Thank you!!!

If I have only one connection with
the Data Base, two threads can't to request the data
in the same time?.If two threads use the same database connection at the same time, bad things will happen. That is why each thread must use its own database connection. The easiest way to make that happen is to have a pool of connections.
This site will do translations for you:
http://world.altavista.com/
It is not very good but it knows Spanish better than I do.

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I have a number of programmatic bc view objects and entity objects which i have implemented through the time from different projects and now that i have collected them i want to add all of them in a reusable application module. However i don't need a connection to the database for this application module. Is it possible to enforce the application module to circumvent the db connection?

Hi user,
Just out of curiosity, why would you use ADF BC for that - if I had a bunch of non-db data sources, I'd probably use POJOs and create POJO data controls.
I didn't look in 10g, but in 11g, the ApplicationModule has a method called getDBConnectionRequired() that you could override to see if that solves your issue.
John

Defining one application module for several DBs

Hi,
Is it possible to define one application module that serves two different DBs?
In other words:
If I need to use two DBs in my application, how many application module should I define?
Thanks in advance

Shalom Moran,
So you only need to connect to one DB at time - but to different DBs at different times right?
If we are talking about changing this at development time then simply simply change the configuration of your application module to connect to a different DB. (right click on the AM in JDeveloper and choose preferences). You can also change this in a file somewhere (don't remember the name of the top of my head).
The other option is to have your AM use the application server's data-sources and you can change the parameters of the data-source in your application server configuration file.
Hope this helps.
Shay

How to change the Data base connection Dynamically

Hi
Hi create a crystal reports using crystal report 12.0 in this i use the standard wizard and local data base connection and create a dotnet programme for this .Now i want to change the database because because i want to instal it in client they use a different connection so i need to change the connection .How is it possible . PLzzzzz tell me it is urgen t
Addvance thnks

Hi
To change the database you can use DataSource Option that is present in the Menu Bar.
Go to Database
->Set Datasource Location
->Replace the current Data Source with the new Datasource.
Hope this helps
Shraddha

Commit on one application module also commits the other

Jdev 11.1.1.4
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One is called AppModuleDatacontrol and the other AppModuleWSDataControl.
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AppModuleWSImpl am=(AppModuleWSImpl)Util.getApplicationModule("AppModuleWSDataControl");
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AppModuleWSImpl am=(AppModuleWSImpl)Util.getApplicationModule("AppModuleWSDataControl");
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<PropertyManager> <loadProperty> [4149] WARNING: Property jbo.maxpoolcookieageset to null
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<BindingContext> <put> [4151] BindingContext.put( AppModuleWSDataControl@edu_esade_view_DataBindings_cpx, oracle.jbo.uicli.binding.JUApplication )
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<DebugDiagnostic> <print> [4154] DBG: DataControl:Looking for :_adf_dc_user_params_key_
<ADFLogger> <begin> Create nested Application Module
I don't know if "Create nested Application Module" is important but I don't want this AppModule to be nested of the other. I want them to be completly independent in order to achieve independance of the commit actions.
Any help ?

"1.Defining all BTF as "No controller transaction" I can assume both AppModule will always work with different transactions "
As long as they're defined as separate root AMs and you've used the <No Controller Transaction> option they will work with different db connections, therefore different transactions too.
"and one transaction in one AppModule will persist trough pages"
Within scope of one BTF yes. In scope of chained BTFs that's dependent on the BTF data control scope option. If you set that to isolated, each instance of a BTF will spawn a new instance of the AM in question (and new connections/transactions with the database). If you use shared, 1 instance of the AM will be shared (1 connection/transaction).
"2.What impact can have this in reusing BTF ? I have a jsf page reusing the same task flow in two regions. The taskflow performs some initialization. Will the regions undesirably interact one with the other ?"
That depends on the data control scope option as specified above. If you want them to be independent, use the isolated data control scope options on the BTF.
Consider reading the ADF Task Flow Transaction Fundamentals paper on this website for more information: http://www.oracle.com/technetwork/developer-tools/adf/learnmore/adfarchitect-1639592.html
CM.

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Hi,
I am using JDeveloper 1.1.1.6
I have a big headache trying to figure out why my application Module is retrieving different data than if I execute the query of my ViewObject directly to the data base. To prove me that I am not crazy I have created a non updateable view object based in this sql query
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If I connect to the same database using the same username, when I execute select * from hr_lookups; I get no rows!!!!
I don't know what else to do and I really will appreciate your help in this one.
Kind Regards

Hi Timo,
Thank you for your reply. Yes, I can see the exact same query. In fact all the rows are the same except one column. One attribute which is coming from a stored procedure. By this I mean the view object has the following structure;
select att1, att2, ... , mypackage.myprocedure(param1,param2) from tables where clauses;
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Regards

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Hi, I am using JDeveloper 11.1.1.2 with ADF BC.
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Hi Frank. Thank you for the reply.
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Is there a way for me to verify if the sessions are different? and if they are different, is there a way to verify if the application module created a new instance for the other session?

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Hello Jschell,
Thank you for your message.
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BPEL with TWO data base polling adapters????

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Hi,
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hi friend,
This link wont five u the complete help but if u ananyse it then it might provide u some idea......
BAPI change shipment doc
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Hi All,
I am facing an issue while adding an Application module to an ADF project as an ADF libray.
I have two applications - ADF Application1 with Model1 project having an Application module AM1, ADF Application2 with Model2 project having an Application Module AM2
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Hi,
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I created a component ZBOOKING with RAD Tool and will fill booking detail table with initial data during a creation of new booking objekt.
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Web UI of ZBooking component
Component structure of ZBooking
I have tried to do sample implementation in do_init_context method of ZACL_CLASS00000C_IMPL class to fill ZBOOKING_DETAILS with some data.
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CALL METHOD SUPER->DO_INIT_CONTEXT.
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Hi,
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CALL METHOD SUPER->DO_INIT_CONTEXT.
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Dmitry

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Solved!
Go to Solution.
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Stiffness Control V1.vi ‏119 KB

you could use stacked plots by right clicking on the chart and clicking on the stacked plots and than on the front panek you can put a bundle function on the FP and hook your signals up
Harold Timmis
[email protected]
Orlando,Fl
*Kudos always welcome
Attachments:
multiplotwaveform.JPG ‏138 KB

Can we link one application instance with multiple databases ?

We have R12.1.1 and db is 11.1.0.7 on redhat 5.3 ( 64 bit).
Can we link one application instance ( apps / , inst / ) with multiple database ( db / ),
is this possible ?
if yes how ?

>
Can we link one application instance ( apps / , inst / ) with multiple database ( db / ),
is this possible ?
No. You cant link application tier with more than one database.
Similar query already answered by Hussein in detail in the forum :Re: Multiple instances, single Apps tier Please check that for more details
-Rk

One application module with 3 differente data base connections

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