Re: RES: Query Customizers

[Thomas Cornet]

   Here is one I've made, quite a basic one, which just adds 'equal' 
criterias.

         Thomas

*** ========= repository.xml ============== ***

                <collection-descriptor
                        name="sortsAttaque"
                        element-class-ref="net.aejase.avatar.MobSort"
                        proxy="true"
                >
                        <inverse-foreignkey field-ref="mobId"/>
                        <query-customizer 
class="net.aejase.ojb.AejaseQueryCustomizer">
                                <attribute attribute-name="cible" 
attribute-value="1" />
                        </query-customizer>
                </collection-descriptor>

*** =================================== ***

/*
 * Created on 29 juin 2003
 *
 */
package net.aejase.ojb;
import java.util.HashMap;
import java.util.Iterator;
import org.apache.ojb.broker.PersistenceBroker;
import org.apache.ojb.broker.accesslayer.QueryCustomizer;
import org.apache.ojb.broker.metadata.CollectionDescriptor;
import org.apache.ojb.broker.query.Criteria;
import org.apache.ojb.broker.query.Query;
import org.apache.ojb.broker.query.QueryByCriteria;
/**
 *
 *
 *  @author
 */
public class AejaseQueryCustomizer implements QueryCustomizer
{
        private HashMap map = null;
        /**
         *
         */
        public AejaseQueryCustomizer()
        {
                map = new HashMap();
        }
        /* (non-Javadoc)
         * @see 
org.apache.ojb.broker.accesslayer.QueryCustomizer#customizeQuery(java.lang.Object, 
org.apache.ojb.broker.PersistenceBroker, 
org.apache.ojb.broker.metadata.CollectionDescriptor, 
org.apache.ojb.broker.query.QueryByCriteria)
         */
        public Query customizeQuery(
                Object arg0,
                PersistenceBroker arg1,
                CollectionDescriptor arg2,
                QueryByCriteria query)
        {
                String tmp;

                Criteria c = query.getCriteria();
                Iterator i = map.keySet().iterator();
                while (i.hasNext())
                {
                        tmp = (String)i.next();
                        c.addEqualTo(tmp, this.getAttribute(tmp));
                }
                return query;
        }
        /* (non-Javadoc)
         * @see 
org.apache.ojb.broker.metadata.AttributeContainer#addAttribute(java.lang.String, 
java.lang.String)
         */
        public void addAttribute(String arg0, String arg1)
        {
                map.put(arg0, arg1);

        }

        /* (non-Javadoc)
         * @see 
org.apache.ojb.broker.metadata.AttributeContainer#getAttribute(java.lang.String, 
java.lang.String)
         */
        public String getAttribute(String arg0, String arg1)
        {
                if (map.containsKey(arg0))
                        return (String)map.get(arg0);

                return arg1;
        }
        /* (non-Javadoc)
         * @see 
org.apache.ojb.broker.metadata.AttributeContainer#getAttribute(java.lang.String)
         */
        public String getAttribute(String arg0)
        {
                return (String)map.get(arg0);
        }

}

*** ================================================== ***

At 02:44 11/07/2003, you wrote:
Hi All,

        Is there any one with a Query Customizer example ?

Thanks,
Vinicius Bomfim
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