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Java > Open Source Codes > org > objectweb > jorm > mapper > rdb > metainfo > RdbFilterParameterTypeProvider


1 /**
2  * JORM: an implementation of a generic mapping system for persistent Java
3  * objects. Two mapping are supported: to RDBMS and to binary files.
4  * Copyright (C) 2001-2004 France Telecom R&D - INRIA
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  * Contact: jorm@objectweb.org
21  *
22  */
23 package org.objectweb.jorm.mapper.rdb.metainfo;
24
25 import org.objectweb.jorm.metainfo.api.Class;
26 import org.objectweb.jorm.metainfo.api.TypedElement;
27 import org.objectweb.jorm.metainfo.api.PrimitiveElement;
28 import org.objectweb.medor.expression.parser.api.ParameterTypeProvider;
29 import org.objectweb.medor.expression.api.MalformedExpressionException;
30 import org.objectweb.jorm.type.api.PType;
31
32 /**
33  * @author A. Lefebvre
34  */
35 public class RdbFilterParameterTypeProvider implements ParameterTypeProvider {
36
37     Class JavaDoc theClass;
38
39     public RdbFilterParameterTypeProvider(Class JavaDoc cl) {
40         theClass = cl;
41     }
42
43     public PType getParameterPType(String JavaDoc s)
44             throws MalformedExpressionException {
45         TypedElement tel = theClass.getTypedElement(s);
46         if (tel instanceof PrimitiveElement) {
47             return tel.getType();
48         } else {
49             throw new MalformedExpressionException("Parameter " + s + " is not a PrimitiveElement.");
50         }
51     }
52 }
53
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