What class is allowed to do what (ie access disk) is kind of up to your classloader. Applets are loaded with a restricted classloader (that is why epsg-hsql cannot be used with an applet). Some application servers also restrict what a web applicaiton is allowed to do (I am not sure what you are running? Jetty? Tomcat? WebSphere?).
So even if the geotools directory is creaed in /tmp (it may be from another run when you were testing?) - your applet or web application may not be able allowed to read it. Jody > My understanding is as long as Geotools directory is created in my > local /tmp then when I ask for a CRS by passing a EPSG code it should > go to this /tmp directory to query in hsql database. I'm not sure > about the performance monitor, does it change the policy to find the > /tmp? Or it's related to how oracle form works with java bean? > > Sun > Jody Garnett wrote: >> Okay... >> epsg-wkt works - in an application, the code using it is a Java Bean >> extending JPanel. >> This java is also called from an applet (an oracle form) - does it >> still work? I assume so >> >> Then we switch topics and start talking about epsg-hsql ... >> Your application should still work; and create a file in tmp >> Your applet should not work (since it is not allowed to see the disk >> drive) >> >> hsperf is a performance monitoring tool; perhaps you have a >> performance monitor going somewhere? >> >> Jody >> >> Lareina Sun wrote: >>> Sorry to bother you so many times but I'm really confused. I think I >>> didn't describe it clearly. I tried epsg-wkt and it works. But my >>> java app is just a bean extending JPanel. This bean is called by >>> oracle form which is an applet. All operation using Geotools is in >>> the java code. Since the EPSG database can be created in my local >>> /tmp I think the java bean should be able to access the EPSG >>> database. There is one thing weird: it not only created Geotools >>> directory and some "hsperfdata" directories in my local /tmp, it >>> also created "hsperfdata" directories in /tmp on server side >>> excluding Geotools directory. >>> Why that happened? >>> >>> Thanks for your patience. >>> >>> Sun >>> Jody Garnett wrote: >>>> Your applet should either use a real database installed on your >>>> sever and made available to the applet (ie epsg-oracle or >>>> epsg-postgres), or make use of something it can use on the client >>>> side (ie. epsg-wkt ). >>>> >>>> The epsg-hsql can only be used by a desktop application, or a >>>> server application (where the application container lets the web >>>> app work with some temporary files on disk). >>>> >>>> Cheers, >>>> Jody >>>>> Hi, >>>>> When I ran the app on the server it did create a Geotools >>>>> directory in my local /tem directory. But it still doesn't work >>>>> because it threw an exception to complain about no EPSG object >>>>> found which can be found if running locally. Could you tell me >>>>> that if the applet cannot access the EPSG database created on >>>>> either the client side nor server side and I must use epsg-wkt >>>>> plugin? >>>>> >>>>> Thanks >>>>> >>>>> >>>> >>>> >>>> >>> >> >> >> > ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Geotools-gt2-users mailing list Geotools-gt2-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
