1 /* |
1 /* |
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. Oracle designates this |
7 * published by the Free Software Foundation. Oracle designates this |
63 * visitor class will also be introduced to correspond to the new |
63 * visitor class will also be introduced to correspond to the new |
64 * language level; this visitor will have different default behavior |
64 * language level; this visitor will have different default behavior |
65 * for the visit method in question. When the new visitor is |
65 * for the visit method in question. When the new visitor is |
66 * introduced, all or portions of this visitor may be deprecated. |
66 * introduced, all or portions of this visitor may be deprecated. |
67 * |
67 * |
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68 * <p>Note that adding a default implementation of a new visit method |
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69 * in a visitor class will occur instead of adding a <em>default |
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70 * method</em> directly in the visitor interface since a Java SE 8 |
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71 * language feature cannot be used to this version of the API since |
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72 * this version is required to be runnable on Java SE 7 |
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73 * implementations. Future versions of the API that are only required |
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74 * to run on Java SE 8 and later may take advantage of default methods |
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75 * in this situation. |
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76 * |
68 * @param <R> the return type of this visitor's methods. Use {@link |
77 * @param <R> the return type of this visitor's methods. Use {@link |
69 * Void} for visitors that do not need to return results. |
78 * Void} for visitors that do not need to return results. |
70 * @param <P> the type of the additional parameter to this visitor's |
79 * @param <P> the type of the additional parameter to this visitor's |
71 * methods. Use {@code Void} for visitors that do not need an |
80 * methods. Use {@code Void} for visitors that do not need an |
72 * additional parameter. |
81 * additional parameter. |