| /* |
| * Copyright (c) 1997, 2012, 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 com.sun.xml.internal.bind.v2.model.nav; |
| |
| import java.lang.reflect.GenericArrayType; |
| import java.lang.reflect.ParameterizedType; |
| import java.lang.reflect.Type; |
| import java.lang.reflect.TypeVariable; |
| import java.lang.reflect.WildcardType; |
| |
| /** |
| * @author Kohsuke Kawaguchi |
| */ |
| abstract class TypeVisitor<T,P> { |
| public final T visit( Type t, P param ) { |
| assert t!=null; |
| |
| if (t instanceof Class) |
| return onClass((Class)t,param); |
| if (t instanceof ParameterizedType) |
| return onParameterizdType( (ParameterizedType)t,param); |
| if(t instanceof GenericArrayType) |
| return onGenericArray((GenericArrayType)t,param); |
| if(t instanceof WildcardType) |
| return onWildcard((WildcardType)t,param); |
| if(t instanceof TypeVariable) |
| return onVariable((TypeVariable)t,param); |
| |
| // covered all the cases |
| assert false; |
| throw new IllegalArgumentException(); |
| } |
| |
| protected abstract T onClass(Class c, P param); |
| protected abstract T onParameterizdType(ParameterizedType p, P param); |
| protected abstract T onGenericArray(GenericArrayType g, P param); |
| protected abstract T onVariable(TypeVariable v, P param); |
| protected abstract T onWildcard(WildcardType w, P param); |
| } |