how can i store config file

[kiran25]

Hi,

I need to read config file during ejb creation time and store it in memory.
This ejb is simple stateless session bean. How can I achive it.

I mean, I dont want read the config file for every request.

[jaikiran]

Have a singleton utility class which will read the file once when it is instantiated. Invoke this singleton utility class from your EJB whenever you want the values for your properties

[g_nagesh]

Thanks, I am thinking of having a Config Mgr as singleton. But not sure where to put the logic of invoking this ConfigMgr (from ejbCreate or setSessionContext())

"jaikiran" wrote:
Have a singleton utility class which will read the file once when it is instantiated. Invoke this singleton utility class from your EJB whenever you want the values for your properties

[jaikiran]

You need not write the code of instantiating the singleton in the ejbCreate or any other specific method. You can do something similar to:

MyEJB implements SessionBean {

 public void someMethod() {

 //do some logic
 .....
 //at this point, i need the value for a property. So do the following
 ConfigMgr.getInstance().getPropertyValue("someProperty");

 }

}

ConfigMgr {


 private static ConfigMgr configMgr;

 private Properties properties;

 private ConfigMgr() {

 //load the properties file
 properties = someCodeToLoadPropertiesFile();
 }
 public synchronized static getInstance() {

 if (configMgr == null) {
 configMgr = new ConfigMgr();
 }
 return configMgr;
 }


}