That is not the only thing that determines shadowing. If you look the
shadowing is actually determined here:
if ( !ruleBase.getConfiguration().isShadowProxy() || cls ==
null || !ruleBase.getConfiguration().isShadowed( cls.getName() ) ) {
return;
}
By default shadowing is turned on for all (none final) bjects, except
stuff in the org.drools namespace, you have to set exclusion lists.too.
So if your package has a null namespace it will still attempt to shadow it.
Mark
Chris West wrote:
OK, I just solved my own problem. My proxy had no package, since the
jdk based proxy is only in a package if it has at least 1 non public
interface, according to the javadoc.
The suspect code beginning on line 333 is:
String pkgName = cls.getPackage().getName();
if ( "org.drools.reteoo".equals( pkgName ) ||
"org.drools.base".equals( pkgName ) ) {
// We don't shadow internal classes
this.shadowEnabled = false;
return;
}
The getPackage() method returns null. In this case, it would be good
if JBoss Rules handled the null and went on to shadow the object
anyway, since it is obviously not in the org.drools packages.
Now I'll continue trying to build a test case for my original problem.
Shall I enter a JIRA for this issue?
Thanks,
-Chris West
On 7/12/07, *Chris West* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Hello,
I'm trying to use objects that are generated as dynamic proxies
(through the java.lang.reflect.Proxy class) as facts in JBoss
Rules 4.0 MR3. My project was using CGLib to generate proxies,
and they were working just fine in 3.0.6. However, when I tried
4.0, the CGLib based proxies seemed to have a final method that
kept the proxies from being proxied as shadow facts. So I rewrote
my code to try to use JDK based proxies, and version 4.0 MR3
accepts them and apparently creates shadow facts, but now my rules
don't fire correctly.
So, in an attempt to create a simple program to illustrate the
problem, I ran into a different problem. The attached eclipse
project illustrates this problem.
The error is:
java.lang.NullPointerException
at org.drools.reteoo.Rete$ObjectTypeConf.<init>(Rete.java:333)
at org.drools.reteoo.Rete.assertObject(Rete.java:152)
at
org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:190)
at
org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:70)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:772)
at org.drools.common.AbstractWorkingMemory.insert
(AbstractWorkingMemory.java:584)
at com.sample.DroolsTest.main(DroolsTest.java:42)
Has anyone successfully used JDK based dynamic proxies as facts?
Thanks,
-Chris West
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