/jboss-as-7.1.1.Final/host-controller/src/main/java/org/jboss/as/host/controller/JvmOptionsElement.java

 1/*
 2 * JBoss, Home of Professional Open Source.
 3 * Copyright 2010, 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 */
22
23package org.jboss.as.host.controller;
24
25import static org.jboss.as.host.controller.HostControllerMessages.MESSAGES;
26
27import java.util.ArrayList;
28import java.util.List;
29
30
31
32/**
33 * An element representing a list of jvm options.
34 *
35 * @author <a href="mailto:kkhan@redhat.com">Kabir Khan</a>
36 */
37public final class JvmOptionsElement {
38
39    private final List<String> options = new ArrayList<String>();
40
41    /**
42     * Construct a new instance.
43     *
44     */
45    public JvmOptionsElement() {
46    }
47
48    /**
49     * Adds an option to the Jvm options
50     *
51     * @param value the option to add
52     */
53    void addOption(final String value) {
54        synchronized (options) {
55            if (value == null) {
56                throw MESSAGES.nullVar("value");
57            }
58            options.add(value);
59        }
60    }
61
62    public int size() {
63        return options.size();
64    }
65
66    /**
67     * Get a copy of the options.
68     *
69     * @return the copy of the options
70     */
71    public List<String> getOptions() {
72        return new ArrayList<String>(options);
73    }
74
75}