Java tutorial
/* * Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.lang.model.element; import java.util.List; import javax.lang.model.type.TypeMirror; import javax.lang.model.type.TypeVariable; /** * Represents a formal type parameter of a generic class, interface, method, * or constructor element. * A type parameter declares a {@link TypeVariable}. * * @author Joseph D. Darcy * @author Scott Seligman * @author Peter von der Ahé * @see TypeVariable * @since 1.6 */ public interface TypeParameterElement extends Element { /** * Returns the {@linkplain TypeVariable type variable} corresponding to this type parameter element. * * @see TypeVariable * * @return the type variable corresponding to this type parameter element */ @Override TypeMirror asType(); /** * Returns the generic class, interface, method, or constructor that is * parameterized by this type parameter. * * @return the generic class, interface, method, or constructor that is * parameterized by this type parameter */ Element getGenericElement(); /** * Returns the bounds of this type parameter. * These are the types given by the {@code extends} clause * used to declare this type parameter. * If no explicit {@code extends} clause was used, * then {@code java.lang.Object} is considered to be the sole bound. * * @return the bounds of this type parameter, or an empty list if * there are none */ List<? extends TypeMirror> getBounds(); /** * Returns the {@linkplain TypeParameterElement#getGenericElement generic element} of this type parameter. * * @return the generic element of this type parameter */ @Override Element getEnclosingElement(); }