Allow definition of class loader

[GoogleCodeExporter]

In OSGi based environments it might be necessary to define the class loader to 
use for creating Beans. Unfortunately, BeanIO does not enable the user to do 
so. A possible solution would be to extend StreamFactory's load methods by 
another parameter of type ClassLoader and use this ClassLoader anywhere a class 
is loaded or a bean is created.

Original issue reported on code.google.com by Leipol...@gmail.com on 8 Nov 2011 at 3:25

[GoogleCodeExporter]

I've haven't worked with any OSGi based environment, so forgive my ignorance if 
I'm not asking the right questions...

1. Would calling Thread.setContextClassLoader(...) be sufficient if BeanIO 
honored the setting throughout?

2. If no for #1, which objects would require instantiation by the overridden 
classloader?  A bean object read from a stream seems obvious, but what about 
type handlers, record reader/writer implementations, and the StreamFactory 
itself?

3. At what "level" should a classloader be allowed to be overridden?  I'm 
guessing per stream would be overkill, but is allowing it to overridden only 
once for the entire framework too little (i.e. 
StreamFactory.setClassloader(...))?

Going with #1 or keeping it as simple as StreamFactory.setClassloader() could 
be fairly straightforward, but other implementations may be more difficult...

Thanks,
Kevin

Original comment by kevin.s...@gmail.com on 8 Nov 2011 at 10:28

• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

As of release 1.2.2, BeanIO will honor a thread's context class loader in all 
cases.  Also note that all class loading is done when a mapping file is loaded.

A more direct interface for setting a class loader per StreamFactory will be 
provided in a future release.

Original comment by kevin.s...@gmail.com on 8 Jan 2012 at 9:31

[GoogleCodeExporter]

Release 2.0 will allow users to specify a ClassLoader instance when creating a 
StreamFactory.  The ClassLoader will be used to resolve all classpath resources 
and user defined bean classes.

Original comment by kevin.s...@gmail.com on 8 Feb 2012 at 4:00

• Changed state: Accepted
• Added labels: Milestone-2.0.0.M1

[GoogleCodeExporter]

Original comment by kevin.s...@gmail.com on 8 Feb 2012 at 4:00

[GoogleCodeExporter]

Fixed as of release 2.0.0.M1.

Original comment by kevin.s...@gmail.com on 3 Mar 2012 at 10:39

• Changed state: Fixed