[hibernate-dev] EMF / EM properties

[Hardy Ferentschik]

I believe Steve is on the right track. As he is saying  
http://pastebin.com/m6add9d4b
describes the "second pull" approach which he have been talking about in  
one of the earlier
mails. This is very similar to what I had in mind as well, except I  
thought about sub-classing
java.util.Properties.

--Hardy


On Wed, 03 Feb 2010 14:26:59 -0300, Steve Ebersole <steve at hibernate.org>  
wrote:

> I specifically said I did not want to "consolidate the constants in a
> single place".  Not in terms of this anyway.  Because we will not know
> them all ahead of time.  Again, I don't see the difference between what
> you mention and what would be needed for caching.
>
> Emmanuel was asking specifically about the specific "second pull
> approach", which is the context of my answer.  There, given the way
> y'all decided to form these property names, the only real option is to
> process all properties starting with "hibernate.search" since that's the
> most common base.
>
> For caching (and search would fit here), I'd expect something like:
>
> interface PropertyConsumer {
>     public boolean consumes(String name);
>     public void consume(String name, Object value);
> }
>
> class ConfigPropertySet {
>     ...
>
>     void consumeProperties(PropertyConsumer consumer) {
>         Iterator itr = fullPropertySet.entries().iterator();
>         while ( itr.hasNext() ) {
>             Map.Entry entry = (Map.Entry) itr.next();
>             final String name = entry.getKey();
>             if ( consumer.consumes( name ) ) {
>                 register( name, entry.getValue() ):
>                 consumer.consume( name, entry.getValue() );
>             }
>         }
>     }
> }
>
> Or maybe even just:
>
> interface PropertyConsumer {
>     public boolean consume(String name, Object value);
> }
>
> class ConfigPropertySet {
>     ...
>
>     void consumeProperties(PropertyConsumer consumer) {
>         Iterator itr = fullPropertySet.entries().iterator();
>         while ( itr.hasNext() ) {
>             Map.Entry entry = (Map.Entry) itr.next();
>             final String name = entry.getKey();
>             if ( consumer.consume( name, entry.getValue() ) ) {
>                 register( name, entry.getValue() ):
>             }
>         }
>     }
> }