001 /*
002 * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation. Sun designates this
008 * particular file as subject to the "Classpath" exception as provided
009 * by Sun in the LICENSE file that accompanied this code.
010 *
011 * This code is distributed in the hope that it will be useful, but WITHOUT
012 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
014 * version 2 for more details (a copy is included in the LICENSE file that
015 * accompanied this code).
016 *
017 * You should have received a copy of the GNU General Public License version
018 * 2 along with this work; if not, write to the Free Software Foundation,
019 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020 *
021 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022 * CA 95054 USA or visit www.sun.com if you need additional information or
023 * have any questions.
024 */
025
026 package com.sun.source.tree;
027
028 /**
029 * A tree node for an 'if' statement.
030 *
031 * For example:
032 * <pre>
033 * if ( <em>condition</em> )
034 * <em>thenStatement</em>
035 *
036 * if ( <em>condition</em> )
037 * <em>thenStatement</em>
038 * else
039 * <em>elseStatement</em>
040 * </pre>
041 *
042 * @see "The Java Language Specification, 3rd ed, section 14.9"
043 *
044 * @author Peter von der Ahé
045 * @author Jonathan Gibbons
046 * @since 1.6
047 */
048 public interface IfTree extends StatementTree {
049 ExpressionTree getCondition();
050 StatementTree getThenStatement();
051 /**
052 * @return null if this if statement has no else branch.
053 */
054 StatementTree getElseStatement();
055 }