1 /*
2 * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
3 * the spring framework, http://el4j.sf.net
4 * Copyright (C) 2010 by ELCA Informatique SA, Av. de la Harpe 22-24,
5 * 1000 Lausanne, Switzerland, http://www.elca.ch
6 *
7 * EL4J is published under the GNU Lesser General Public License (LGPL)
8 * Version 2.1. See http://www.gnu.org/licenses/
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Lesser General Public License for more details.
14 *
15 * For alternative licensing, please contact info@elca.ch
16 */
17 package ch.elca.el4j.services.persistence.jpa.criteria;
18
19 /**
20 * The interface for the query builder. The one implements the expression gives ability to append sub expression into
21 * itself.
22 *
23 * @svnLink $Revision: 4253 $;$Date: 2010-12-21 11:08:04 +0100 (Di, 21. Dez 2010) $;$Author: swismer $;$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/branches/el4j_3_1/el4j/framework/modules/hibernate/src/main/java/ch/elca/el4j/services/persistence/jpa/criteria/Expression.java $
24 * @author Huy Hung Nguyen (HUN)
25 */
26 public interface Expression {
27
28 /**
29 * Appends sub query into the builder.
30 *
31 * @param query
32 * the query to append
33 */
34 void append(String query);
35 }