CommonQueries.java

/*
 * Copyright 2011 Marc Grue.
 *
 * Licensed  under the  Apache License,  Version 2.0  (the "License");
 * you may not use  this file  except in  compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed  under the  License is distributed on an "AS IS" BASIS,
 * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY KIND, either  express  or
 * implied.
 *
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.qi4j.sample.dcicargo.sample_a.communication.query;

import java.util.ArrayList;
import java.util.List;
import org.apache.wicket.model.IModel;
import org.qi4j.api.query.Query;
import org.qi4j.api.query.QueryBuilder;
import org.qi4j.sample.dcicargo.sample_a.communication.query.dto.CargoDTO;
import org.qi4j.sample.dcicargo.sample_a.data.entity.CargoEntity;
import org.qi4j.sample.dcicargo.sample_a.data.shipping.location.Location;
import org.qi4j.sample.dcicargo.sample_a.infrastructure.model.EntityModel;
import org.qi4j.sample.dcicargo.sample_a.infrastructure.model.Queries;
import org.qi4j.sample.dcicargo.sample_a.infrastructure.model.QueryModel;

import static org.qi4j.api.query.QueryExpressions.orderBy;
import static org.qi4j.api.query.QueryExpressions.templateFor;

/**
 * Common queries
 *
 * Queries shared across packages.
 *
 * Used by the communication layer only. Can change according to ui needs.
 */
public class CommonQueries extends Queries
{
    public IModel<CargoDTO> cargo( String trackingId )
    {
        return EntityModel.of( CargoEntity.class, trackingId, CargoDTO.class );
    }

    public IModel<List<CargoDTO>> cargoList()
    {
        return new QueryModel<CargoDTO, CargoEntity>( CargoDTO.class )
        {
            public Query<CargoEntity> getQuery()
            {
                QueryBuilder<CargoEntity> qb = qbf.newQueryBuilder( CargoEntity.class );
                return uowf.currentUnitOfWork().newQuery( qb )
                    .orderBy( orderBy( templateFor( CargoEntity.class ).trackingId().get().id() ) );
            }
        };
    }

    public List<String> unLocodes()
    {
        QueryBuilder<Location> qb = qbf.newQueryBuilder( Location.class );
        Query<Location> locations = uowf.currentUnitOfWork().newQuery( qb )
            .orderBy( orderBy( templateFor( Location.class ).unLocode().get().code() ) );
        List<String> unLocodeList = new ArrayList<String>();
        for( Location location : locations )
        {
            unLocodeList.add( location.getCode() );
        }

        return unLocodeList;
    }
}