duke@1: /* ohair@554: * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved. duke@1: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. duke@1: * duke@1: * This code is free software; you can redistribute it and/or modify it duke@1: * under the terms of the GNU General Public License version 2 only, as ohair@554: * published by the Free Software Foundation. Oracle designates this duke@1: * particular file as subject to the "Classpath" exception as provided ohair@554: * by Oracle in the LICENSE file that accompanied this code. duke@1: * duke@1: * This code is distributed in the hope that it will be useful, but WITHOUT duke@1: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or duke@1: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License duke@1: * version 2 for more details (a copy is included in the LICENSE file that duke@1: * accompanied this code). duke@1: * duke@1: * You should have received a copy of the GNU General Public License version duke@1: * 2 along with this work; if not, write to the Free Software Foundation, duke@1: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. duke@1: * ohair@554: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA ohair@554: * or visit www.oracle.com if you need additional information or have any ohair@554: * questions. duke@1: */ duke@1: duke@1: package javax.lang.model.type; duke@1: duke@1: duke@1: /** duke@1: * Represents a wildcard type argument. duke@1: * Examples include:

duke@1:  *   ?
duke@1:  *   ? extends Number
duke@1:  *   ? super T
duke@1:  * 
duke@1: * duke@1: *

A wildcard may have its upper bound explicitly set by an duke@1: * {@code extends} clause, its lower bound explicitly set by a duke@1: * {@code super} clause, or neither (but not both). duke@1: * duke@1: * @author Joseph D. Darcy duke@1: * @author Scott Seligman duke@1: * @author Peter von der Ahé duke@1: * @since 1.6 duke@1: */ duke@1: public interface WildcardType extends TypeMirror { duke@1: duke@1: /** duke@1: * Returns the upper bound of this wildcard. duke@1: * If no upper bound is explicitly declared, duke@1: * {@code null} is returned. duke@1: * duke@1: * @return the upper bound of this wildcard duke@1: */ duke@1: TypeMirror getExtendsBound(); duke@1: duke@1: /** duke@1: * Returns the lower bound of this wildcard. duke@1: * If no lower bound is explicitly declared, duke@1: * {@code null} is returned. duke@1: * duke@1: * @return the lower bound of this wildcard duke@1: */ duke@1: TypeMirror getSuperBound(); duke@1: }