/jboss-as-7.1.1.Final/jpa/core/src/main/java/org/jboss/as/jpa/config/AttributeDefinition.java

 1// $Id$
 2/*
 3 * Copyright (c) 2011, Red Hat Middleware LLC or third-party contributors as
 4 * indicated by the @author tags or express copyright attribution
 5 * statements applied by the authors.  All third-party contributions are
 6 * distributed under license by Red Hat Middleware LLC.
 7 *
 8 * This copyrighted material is made available to anyone wishing to use, modify,
 9 * copy, or redistribute it subject to the terms and conditions of the GNU
10 * Lesser General Public License, as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
15 * for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with this distribution; if not, write to:
19 * Free Software Foundation, Inc.
20 * 51 Franklin Street, Fifth Floor
21 * Boston, MA  02110-1301  USA
22 */
23package org.jboss.as.jpa.config;
24
25import org.jboss.as.server.parsing.PropertiesValueResolver;
26
27/**
28 * Defines properties of the attribute.
29 *
30 * @author kulikov
31 */
32public class AttributeDefinition {
33    //true when this attribute allow expression
34
35    private boolean allowExpression;
36
37    /**
38     * Creates new instance of this descriptor.
39     *
40     * @param allowExpression true if attribute's value allow expression
41     */
42    public AttributeDefinition(boolean allowExpression) {
43        this.allowExpression = allowExpression;
44    }
45
46    /**
47     * Expression support flag.
48     *
49     * @return true if attributes value can be an expression.
50     */
51    public boolean isAllowExpression() {
52        return allowExpression;
53    }
54
55    /**
56     * Resolves value of the attribute from text description.
57     *
58     * @param value textual expression
59     * @return value.
60     */
61    public String resolve(String value) {
62        return allowExpression ? PropertiesValueResolver.replaceProperties(value) : value;
63    }
64}