Thu, 31 Aug 2017 15:18:52 +0800
merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1997, 2011, 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 com.sun.xml.internal.bind.v2.model.nav; |
aoqi@0 | 27 | |
aoqi@0 | 28 | import java.lang.reflect.GenericArrayType; |
aoqi@0 | 29 | import java.lang.reflect.ParameterizedType; |
aoqi@0 | 30 | import java.lang.reflect.Type; |
aoqi@0 | 31 | import java.lang.reflect.TypeVariable; |
aoqi@0 | 32 | import java.lang.reflect.WildcardType; |
aoqi@0 | 33 | |
aoqi@0 | 34 | /** |
aoqi@0 | 35 | * @author Kohsuke Kawaguchi |
aoqi@0 | 36 | */ |
aoqi@0 | 37 | abstract class TypeVisitor<T,P> { |
aoqi@0 | 38 | public final T visit( Type t, P param ) { |
aoqi@0 | 39 | assert t!=null; |
aoqi@0 | 40 | |
aoqi@0 | 41 | if (t instanceof Class) |
aoqi@0 | 42 | return onClass((Class)t,param); |
aoqi@0 | 43 | if (t instanceof ParameterizedType) |
aoqi@0 | 44 | return onParameterizdType( (ParameterizedType)t,param); |
aoqi@0 | 45 | if(t instanceof GenericArrayType) |
aoqi@0 | 46 | return onGenericArray((GenericArrayType)t,param); |
aoqi@0 | 47 | if(t instanceof WildcardType) |
aoqi@0 | 48 | return onWildcard((WildcardType)t,param); |
aoqi@0 | 49 | if(t instanceof TypeVariable) |
aoqi@0 | 50 | return onVariable((TypeVariable)t,param); |
aoqi@0 | 51 | |
aoqi@0 | 52 | // covered all the cases |
aoqi@0 | 53 | assert false; |
aoqi@0 | 54 | throw new IllegalArgumentException(); |
aoqi@0 | 55 | } |
aoqi@0 | 56 | |
aoqi@0 | 57 | protected abstract T onClass(Class c, P param); |
aoqi@0 | 58 | protected abstract T onParameterizdType(ParameterizedType p, P param); |
aoqi@0 | 59 | protected abstract T onGenericArray(GenericArrayType g, P param); |
aoqi@0 | 60 | protected abstract T onVariable(TypeVariable v, P param); |
aoqi@0 | 61 | protected abstract T onWildcard(WildcardType w, P param); |
aoqi@0 | 62 | } |