Is it possible to split a single project into multiple overlapping SVNs?

Question

Is the following possible??...

checkout 'core'

CORE / INTERFACE / corefile
CORE / APP / corefile

checkout 'plugin_1'

PLUGIN_1 / INTERFACE / PLUGIN_1 / pluginfile
PLUGIN_1 / APP / PLUGIN_1 / pluginfile

checkout 'plugin_2'

PLUGIN_2 / INTERFACE / PLUGIN_2 / pluginfile
PLUGIN_2 / APP / PLUGIN_2 / pluginfile

checkout 'core' + 'plugin_1' + 'plugin_2'

ALL / INTERFACE / corefile
ALL / INTERFACE / PLUGIN_1 / pluginfile
ALL / INTERFACE / PLUGIN_2 / pluginfile
ALL / APP / corefile
ALL / APP / PLUGIN_1 / pluginfile
ALL / APP / PLUGIN_2 / pluginfile

I see from the comments below that svn:externals is the answer, and I think I now have it working.

Answer 1

Yes. You can even have one "inside" another.

Answer 2

In a matter of facts you can. You'd have to make those two different repositories and in the main (third) one just point to them with svn:externals. You could do that by editing properties of a folder to which you want to add a folder from different repository.

Answer 3

Could this be a case for svn:externals?