19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package javax.lang.model.util;
27
28 import javax.lang.model.element.*;
29 import javax.annotation.processing.SupportedSourceVersion;
30 import static javax.lang.model.element.ElementKind.*;
31 import javax.lang.model.SourceVersion;
32 import static javax.lang.model.SourceVersion.*;
33
34 /**
35 * A simple visitor of program elements with default behavior
36 * appropriate for the {@link SourceVersion#RELEASE_7 RELEASE_7}
37 * source version.
38 *
39 * Visit methods corresponding to {@code RELEASE_7} language
40 * constructs call {@link #defaultAction}, passing their arguments to
41 * {@code defaultAction}'s corresponding parameters.
42 *
43 * <p> Methods in this class may be overridden subject to their
44 * general contract. Note that annotating methods in concrete
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
72 */
73 @SupportedSourceVersion(RELEASE_7)
74 public class SimpleElementVisitor7<R, P> extends SimpleElementVisitor6<R, P> {
75 /**
76 * Constructor for concrete subclasses; uses {@code null} for the
77 * default value.
78 */
79 protected SimpleElementVisitor7(){
80 super(null);
81 }
82
83 /**
84 * Constructor for concrete subclasses; uses the argument for the
85 * default value.
86 *
87 * @param defaultValue the value to assign to {@link #DEFAULT_VALUE}
88 */
89 protected SimpleElementVisitor7(R defaultValue){
90 super(defaultValue);
91 }
92 }
|
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package javax.lang.model.util;
27
28 import javax.lang.model.element.*;
29 import javax.annotation.processing.SupportedSourceVersion;
30 import static javax.lang.model.element.ElementKind.*;
31 import javax.lang.model.SourceVersion;
32 import static javax.lang.model.SourceVersion.*;
33
34 /**
35 * A simple visitor of program elements with default behavior
36 * appropriate for the {@link SourceVersion#RELEASE_7 RELEASE_7}
37 * source version.
38 *
39 * Visit methods corresponding to {@code RELEASE_7} and earlier
40 * language constructs call {@link #defaultAction defaultAction},
41 * passing their arguments to {@code defaultAction}'s corresponding
42 * parameters.
43 *
44 * <p> Methods in this class may be overridden subject to their
45 * general contract. Note that annotating methods in concrete
46 * subclasses with {@link java.lang.Override @Override} will help
47 * ensure that methods are overridden as intended.
48 *
49 * <p> <b>WARNING:</b> The {@code ElementVisitor} interface
50 * implemented by this class may have methods added to it in the
51 * future to accommodate new, currently unknown, language structures
52 * added to future versions of the Java™ programming language.
53 * Therefore, methods whose names begin with {@code "visit"} may be
54 * added to this class in the future; to avoid incompatibilities,
55 * classes which extend this class should not declare any instance
56 * methods with names beginning with {@code "visit"}.
57 *
58 * <p>When such a new visit method is added, the default
59 * implementation in this class will be to call the {@link
60 * #visitUnknown visitUnknown} method. A new simple element visitor
61 * class will also be introduced to correspond to the new language
62 * level; this visitor will have different default behavior for the
73 */
74 @SupportedSourceVersion(RELEASE_7)
75 public class SimpleElementVisitor7<R, P> extends SimpleElementVisitor6<R, P> {
76 /**
77 * Constructor for concrete subclasses; uses {@code null} for the
78 * default value.
79 */
80 protected SimpleElementVisitor7(){
81 super(null);
82 }
83
84 /**
85 * Constructor for concrete subclasses; uses the argument for the
86 * default value.
87 *
88 * @param defaultValue the value to assign to {@link #DEFAULT_VALUE}
89 */
90 protected SimpleElementVisitor7(R defaultValue){
91 super(defaultValue);
92 }
93
94 /**
95 * This implementation calls {@code defaultAction}.
96 *
97 * @param e {@inheritDoc}
98 * @param p {@inheritDoc}
99 * @return the result of {@code defaultAction}
100 */
101 @Override
102 public R visitVariable(VariableElement e, P p) {
103 return defaultAction(e, p);
104 }
105 }
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