WildcardType.java revision 2571:10fc81ac75b4 
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25227652Sgrehan
26319182Sngiepackage com.sun.javadoc;
27227652Sgrehan
28227652Sgrehan
29227652Sgrehan/**
30227652Sgrehan * Represents a wildcard type argument.
31227652Sgrehan * Examples include:    <pre>
32227652Sgrehan * {@code <?>}
33227652Sgrehan * {@code <? extends E>}
34 * {@code <? super T>}
35 * </pre>
36 * A wildcard type can have explicit <i>extends</i> bounds
37 * or explicit <i>super</i> bounds or neither, but not both.
38 *
39 * @author Scott Seligman
40 * @since 1.5
41 */
42public interface WildcardType extends Type {
43
44    /**
45     * Return the upper bounds of this wildcard type argument
46     * as given by the <i>extends</i> clause.
47     * Return an empty array if no such bounds are explicitly given.
48     *
49     * @return the extends bounds of this wildcard type argument
50     */
51    Type[] extendsBounds();
52
53    /**
54     * Return the lower bounds of this wildcard type argument
55     * as given by the <i>super</i> clause.
56     * Return an empty array if no such bounds are explicitly given.
57     *
58     * @return the super bounds of this wildcard type argument
59     */
60    Type[] superBounds();
61}
62