com.day.cq.commons.predicate.AbstractResourcePredicate Maven / Gradle / Ivy

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package com.day.cq.commons.predicate;

import org.apache.commons.collections.Predicate;
import org.apache.sling.api.resource.Resource;
/**
 * Predicate used to filter sling Resource
 *
 */
abstract public class AbstractResourcePredicate implements Predicate {
    /**
     * {@inheritDoc}
     *
     * @return true if o is a Resource the subsequent call to {@link #evaluate(Resource)}
     * returns true; false otherwise.
     */
    public boolean evaluate(Object o) {
        if (o != null && o instanceof Resource) {
            return evaluate((Resource) o);
        } 
        //return true if this predicate does not know how to evaluate it.
        return true;
    }

    /**
     * Evaluates this predicate on the given Resource.
     *
     * @param resource given resource
     * @return true if this resource satisfies this predicate
     */
    public abstract boolean evaluate(Resource res);
}