'Oracle ADF - programmatically updating ApplicationModule properties

I want to set the application module configuration property(jbo.ampool.timetolive) value from a managed bean on a button click from the adf page, I have tried with following code but the property value is not getting set. 

public Object getInfo(String string, Object environment) {
    Hashtable envHashtable = (Hashtable)environment;      
    envHashtable.put(ApplicationModule.PROPERTY_LABEL.equals("jbo.ampool.timetolive"),"7200000");
    return null;
}

kindly help me out on this

javaoracleoracle-adf


Solution 1:[1]

OK, that's tricky stuff, but here is what I would try:

In your configurations (bc4j.xcfg file), set the jbo.ampool.sessioncookiefactoryclass to point to a class that you will provide (let's call it MySessionCookieFactory)

<BC4JConfig ...>
   <AppModuleConfigBag ...>
      <AppModuleConfig ...>
         <AM-Pooling jbo.ampool.sessioncookiefactoryclass="mypackage.MySessionCookieFactory"/>

That class, MySessionCookieFactory must extend oracle.jbo.common.ampool.SessionCookieFactory and override createSessionCookie to pass back a custom EnvInfoProvider.

public SessionCookie createSessionCookie(String applicationId, String sessionId, ApplicationPool pool,
                                         Properties properties) {
    final SessionCookie cookie = mFactory.createSessionCookie(applicationId, sessionId, pool, properties);
    final EnvInfoProvider provider = new MyEnvInfoProvider();
    cookie.setEnvInfoProvider(provider);
    return cookie;
}

MyEnvInfoProvider must extend oracle.jbo.common.ampool.EnvInfoProvider and override getInfo() to pass back and environment that has the value of jbo.ampool.timetolive that you want.

So, in MyEnvInfoProvider...

@Override
public Object getInfo(String infoType,
                       Object configurationEnvironmentObject) {
    // NOTE: Watch logging in this method.  It gets called for *every request* and it can really clutter up a log.
    // Cast the configuration environment passed in to it's correct type.  It's really lame that Oracle's signatures include Object types
    // instead of the correct classes or interfaces.
    final Hashtable<String, String> configurationEnvironmentHashtable =
                                     (Hashtable<String, String>) configurationEnvironmentObject;

//        if (EnvInfoProvider.INFO_TYPE_SESSION_ENVIRONMENT.equals(infoType)) {
        configurationEnvironmentHashtable.put(PropertyConstants.ENV_AMPOOL_TIME_TO_LIVE, (String) MyClass.getTTL());
//        }
    return configurationEnvironmentHashtable;
}

So, if you do all that, you'll control jbo.ampool.timetolive to be whatever gets returned by MyClass.getTTL(). So, all you need to do is update a variable that MyClass.getTTL() and it will get used as jbo.ampool.timetolive.

I have done this approach environment settings, but not with jbo.ampool.timetolive in particular, so I can't guarantee this will work for you.

Also, why do you need to set this dynamically? Why not just put 720000 in your bc4j.xcfg file and be done with it?

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Matthew McPeak

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