Hi,

The current repository.xml configuration file and the related
o.a.j.core.config code is quite monolithic and essentially fixes the
structure of Jackrabbit internals. For example, almost all notable new
features require that you either modify the configuration handling
code (clustering, data store, ism locking) or just work around it
(indexing).

The configuration model also makes us duplicate lots of code. For
example, instead of using a single database configuration and an
associated class/object, we now need to duplicate database connection
code in persistence managers, file systems, cluster journals, and data
stores. It's a mess.

To fix this, I'd like to make Jackrabbit configuration more IoC-like,
eventually making it possible to use an existing IoC library/container
to configure Jackrabbit. To make this happen, I'd start by dropping
the type-specific SomeConfig classes from o.a.j.core.config and
replacing the init(...) methods with setters and more explicit
lifecycle management methods.

WDYT? This'll probably require some relatively heavy-handed
refactoring, changes to the repository.xml structure, and probably
some backwards-compatibility code to handle Jackrabbit 1.4 and earlier
configuration files, so I won't go forward unless we have a reasonable
consensus that the benefits are worth the effort.

BR,

Jukka Zitting

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