predicate missing library

[samuel786431]

Hi,

I'm using cq5.5 and i have a code like this:

import javax.jcr.Node; import javax.jcr.RepositoryException; import org.apache.felix.scr.annotations.Component; import org.apache.felix.scr.annotations.Property; import org.apache.felix.scr.annotations.Service; import org.apache.jackrabbit.commons.predicate.Predicate; import com.day.cq.commons.predicate.AbstractNodePredicate; @Component @Service @Property(name = "predicate.name", value = "PredicateVideo") public class PredicateVideo extends AbstractNodePredicate implements Predicate { public boolean evaluate(Node node) throws RepositoryException { return true; } }

Up to AbstractNodePredicate my eclipse raises an error:

The type org.apache.commons.collections.Predicate cannot be resolved. It is indirectly referenced from required .class files

So i add this dependency:

<dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.0</version> </dependency>

but it doesn't resolve my problem.

Is it a problem of dependency? Which is the right dependency?

On the other hand if i remove the interface:

import org.apache.jackrabbit.commons.predicate.Predicate; import org.apache.felix.scr.annotations.Component; import org.apache.felix.scr.annotations.Property; import org.apache.felix.scr.annotations.Service; import org.slf4j.Logger; import org.slf4j.LoggerFactory; @Component @Service @Property(name = "predicate.name", value = "PredicateVideo") public class PredicateVideo implements Predicate { protected final Logger log = LoggerFactory.getLogger(this.getClass()); public boolean evaluate(Object obj) { return true; } }

This code is correct but if i use it with the property predicate="PredicateVideo" the log raises the error:

Unable to retrieve predicate PredicateVideo

Any idea?

Thanks

[kautuk_sahni]

Hi

Check Sling/AEM dependencies you have in your POM file with Dependency Finder (you can find it there /system/console/depfinder). 

and put version in POM file accordingly.

Thanks and Regards

Kautuk Sahni

[smacdonald2008]

We have an AEM community that show how to work with com.day.cq.commons.predicate.AbstractNodePredicate. This will point you in the right direction. See:

https://helpx.adobe.com/experience-manager/using/creating-custom-cq-tree.html

Hope this helps. 

[kautuk_sahni · Accepted solution]

smacdonald2008 wrote...

We have an AEM community that show how to work with com.day.cq.commons.predicate.AbstractNodePredicate. This will point you in the right direction. See:

https://helpx.adobe.com/experience-manager/using/creating-custom-cq-tree.html

Hope this helps. 

Hi Scott

This is really a good article covering "how to use a custom predicate".

I hope this will help the samuel786431 .

Reference Link :-http://hashimkhan.in/tag/predicate/

//This links covers:-

1. Standard Predicates

2. Custom Predicate

Documentation link:- https://docs.adobe.com/docs/en/aem/6-0/develop/search/implementing-custom-predicate-evaluator.html

I hope this would help him.

Thanks and Regards

Kautuk Sahni