/jboss-as-7.1.1.Final/cmp/src/main/java/org/jboss/as/cmp/jdbc/JDBCQueryCommand.java

 1/*
 2 * JBoss, Home of Professional Open Source.
 3 * Copyright 2011, Red Hat, Inc., and individual contributors
 4 * as indicated by the @author tags. See the copyright.txt file in the
 5 * distribution for a full listing of individual contributors.
 6 *
 7 * This is free software; you can redistribute it and/or modify it
 8 * under the terms of the GNU Lesser General Public License as
 9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22package org.jboss.as.cmp.jdbc;
23
24import java.lang.reflect.Method;
25import java.util.ArrayList;
26import java.util.Collection;
27import java.util.List;
28import javax.ejb.FinderException;
29import org.jboss.as.cmp.context.CmpEntityBeanContext;
30
31/**
32 * Common interface for all query commands.
33 *
34 * @author <a href="mailto:dain@daingroup.com">Dain Sundstrom</a>
35 * @version $Revision: 81030 $
36 */
37public interface JDBCQueryCommand {
38    Collection execute(Method finderMethod, Object[] args, CmpEntityBeanContext ctx, EntityProxyFactory factory) throws FinderException;
39
40    JDBCStoreManager getSelectManager();
41
42    interface EntityProxyFactory {
43        Object getEntityObject(final Object primaryKey);
44
45        class Util {
46            static Collection<Object> getEntityCollection(final EntityProxyFactory factory, final Collection<Object> ids) {
47                List<Object> result = new ArrayList<Object>();
48                if (!ids.isEmpty()) {
49                    for (Object id : ids) {
50                        result.add(id != null ? factory.getEntityObject(id) : null);
51                    }
52                }
53                return result;
54            }
55        }
56    }
57}