Albert,
You can store the data in a singleton class that you access
from your stateless session beans.
class MyStatelessSessionBean extends ...
{
public String getReadOnlyTableData1()
{
MySingleton singleton = MySingleton.getInstance();
return singleton.getData1();
}
public int getReadOnlyTableData2()
{
MySingleton singleton = MySingleton.getInstance();
return singleton.getData2();
}
.... etc.
}
class MySingleton
{
//Singleton instance
private static MySingleton singleton = null;
//Read-only RDBMS data
private String data1;
private int data2;
... et cetera
//Private constructor!
private MySingleton()
{
//Read the read-only RDBMS data here
}
public synchronized static MySingleton getInstance()
{
if(singleton == null)
{
singleton = new MySingleton();
}
return singleton;
}
public String getData1() {return data1;}
public int getData2() {return data2;}
... et cetera
}
Later,
Sean
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Albert Brotzer
> Sent: Wednesday, April 12, 2000 1:25 PM
> To: [EMAIL PROTECTED]
> Subject: Caching data
>
>
> Hello everybody,
>
> my application uses a databasetable with some readonly data. Almost every
> Bean in my application needs access to this data. I'd like avoid the
> overhead of reading the data from the database whenever some Bean
> needs it.
>
> I already tried to use a Stateless Session Bean as a cache for
> data. In the
> ejbCreate() method of this bean I read in the data from the database and
> store it in instance variables of that bean. I thought, that the
> ejbCreate()
> method for stateless session beans would only be called once. But
> apparently
> it is called every time a client invokes the create() method of
> my stateless
> session bean.
>
> Am I doing something stupid? Does someone know a
> solution/workaround for my
> problem?
>
> Thanks a lot for your help!
> Best Regards,
> Albert
>
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