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 } |