org.dcm4chee.archive.query.dao.AbstractQuery.java Source code

Introduction

Here is the source code for org.dcm4chee.archive.query.dao.AbstractQuery.java

Source

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa Healthcare.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * See @authors listed below
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

package org.dcm4chee.archive.query.dao;

import org.dcm4che.data.Attributes;
import org.dcm4chee.archive.common.QueryParam;
import org.hibernate.ScrollMode;
import org.hibernate.ScrollableResults;

import com.mysema.query.jpa.hibernate.HibernateQuery;
import com.mysema.query.types.Expression;

/**
 * @author Gunter Zeilinger <gunterze@gmail.com>
 */
abstract class AbstractQuery {

    protected final QueryService queryService;
    protected final QueryParam queryParam;
    private final HibernateQuery query;
    private final Expression<?>[] select;
    private final boolean optionalKeyNotSupported;

    protected AbstractQuery(QueryService queryService, HibernateQuery query, QueryParam queryParam,
            boolean optionalKeyNotSupported, Expression<?>... select) {
        this.queryService = queryService;
        this.query = query;
        this.select = select;
        this.queryParam = queryParam;
        this.optionalKeyNotSupported = optionalKeyNotSupported;
    }

    public ScrollableResults execute() {
        return query.scroll(ScrollMode.FORWARD_ONLY, select);
    }

    public final HibernateQuery getQuery() {
        return query;
    }

    public final boolean optionalKeyNotSupported() {
        return optionalKeyNotSupported;
    }

    protected abstract Attributes toAttributes(ScrollableResults results);

}