src/share/classes/javax/lang/model/type/WildcardType.java

Thu, 31 Aug 2017 15:17:03 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:17:03 +0800
changeset 2525
2eb010b6cb22
parent 554
9d9f26857129
parent 0
959103a6100f
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package javax.lang.model.type;
aoqi@0 27
aoqi@0 28
aoqi@0 29 /**
aoqi@0 30 * Represents a wildcard type argument.
aoqi@0 31 * Examples include: <pre><tt>
aoqi@0 32 * ?
aoqi@0 33 * ? extends Number
aoqi@0 34 * ? super T
aoqi@0 35 * </tt></pre>
aoqi@0 36 *
aoqi@0 37 * <p> A wildcard may have its upper bound explicitly set by an
aoqi@0 38 * {@code extends} clause, its lower bound explicitly set by a
aoqi@0 39 * {@code super} clause, or neither (but not both).
aoqi@0 40 *
aoqi@0 41 * @author Joseph D. Darcy
aoqi@0 42 * @author Scott Seligman
aoqi@0 43 * @author Peter von der Ah&eacute;
aoqi@0 44 * @since 1.6
aoqi@0 45 */
aoqi@0 46 public interface WildcardType extends TypeMirror {
aoqi@0 47
aoqi@0 48 /**
aoqi@0 49 * Returns the upper bound of this wildcard.
aoqi@0 50 * If no upper bound is explicitly declared,
aoqi@0 51 * {@code null} is returned.
aoqi@0 52 *
aoqi@0 53 * @return the upper bound of this wildcard
aoqi@0 54 */
aoqi@0 55 TypeMirror getExtendsBound();
aoqi@0 56
aoqi@0 57 /**
aoqi@0 58 * Returns the lower bound of this wildcard.
aoqi@0 59 * If no lower bound is explicitly declared,
aoqi@0 60 * {@code null} is returned.
aoqi@0 61 *
aoqi@0 62 * @return the lower bound of this wildcard
aoqi@0 63 */
aoqi@0 64 TypeMirror getSuperBound();
aoqi@0 65 }

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