45 * subclasses with {@link java.lang.Override @Override} will help
46 * ensure that methods are overridden as intended.
47 *
48 * <p> <b>WARNING:</b> The {@code ElementVisitor} interface
49 * implemented by this class may have methods added to it in the
50 * future to accommodate new, currently unknown, language structures
51 * added to future versions of the Java™ programming language.
52 * Therefore, methods whose names begin with {@code "visit"} may be
53 * added to this class in the future; to avoid incompatibilities,
54 * classes which extend this class should not declare any instance
55 * methods with names beginning with {@code "visit"}.
56 *
57 * <p>When such a new visit method is added, the default
58 * implementation in this class will be to call the {@link
59 * #visitUnknown visitUnknown} method. A new simple element visitor
60 * class will also be introduced to correspond to the new language
61 * level; this visitor will have different default behavior for the
62 * visit method in question. When the new visitor is introduced, all
63 * or portions of this visitor may be deprecated.
64 *
65 * <p>Note that adding a default implementation of a new visit method
66 * in a visitor class will occur instead of adding a <em>default
67 * method</em> directly in the visitor interface since a Java SE 8
68 * language feature cannot be used to this version of the API since
69 * this version is required to be runnable on Java SE 7
70 * implementations. Future versions of the API that are only required
71 * to run on Java SE 8 and later may take advantage of default methods
72 * in this situation.
73 *
74 * @param <R> the return type of this visitor's methods. Use {@code Void}
75 * for visitors that do not need to return results.
76 * @param <P> the type of the additional parameter to this visitor's methods. Use {@code Void}
77 * for visitors that do not need an additional parameter.
78 *
79 * @see SimpleElementVisitor6
80 * @see SimpleElementVisitor8
81 * @see SimpleElementVisitor9
82 * @since 1.7
83 */
84 @SuppressWarnings("deprecation") // Superclass deprecated
85 @SupportedSourceVersion(RELEASE_7)
86 public class SimpleElementVisitor7<R, P> extends SimpleElementVisitor6<R, P> {
87 /**
88 * Constructor for concrete subclasses; uses {@code null} for the
89 * default value.
90 */
91 protected SimpleElementVisitor7(){
92 super(null);
93 }
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45 * subclasses with {@link java.lang.Override @Override} will help
46 * ensure that methods are overridden as intended.
47 *
48 * <p> <b>WARNING:</b> The {@code ElementVisitor} interface
49 * implemented by this class may have methods added to it in the
50 * future to accommodate new, currently unknown, language structures
51 * added to future versions of the Java™ programming language.
52 * Therefore, methods whose names begin with {@code "visit"} may be
53 * added to this class in the future; to avoid incompatibilities,
54 * classes which extend this class should not declare any instance
55 * methods with names beginning with {@code "visit"}.
56 *
57 * <p>When such a new visit method is added, the default
58 * implementation in this class will be to call the {@link
59 * #visitUnknown visitUnknown} method. A new simple element visitor
60 * class will also be introduced to correspond to the new language
61 * level; this visitor will have different default behavior for the
62 * visit method in question. When the new visitor is introduced, all
63 * or portions of this visitor may be deprecated.
64 *
65 * @param <R> the return type of this visitor's methods. Use {@code Void}
66 * for visitors that do not need to return results.
67 * @param <P> the type of the additional parameter to this visitor's methods. Use {@code Void}
68 * for visitors that do not need an additional parameter.
69 *
70 * @see SimpleElementVisitor6
71 * @see SimpleElementVisitor8
72 * @see SimpleElementVisitor9
73 * @since 1.7
74 */
75 @SuppressWarnings("deprecation") // Superclass deprecated
76 @SupportedSourceVersion(RELEASE_7)
77 public class SimpleElementVisitor7<R, P> extends SimpleElementVisitor6<R, P> {
78 /**
79 * Constructor for concrete subclasses; uses {@code null} for the
80 * default value.
81 */
82 protected SimpleElementVisitor7(){
83 super(null);
84 }
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