diff -r 8db7e6cffaf4 -r d2a313368ccb jdk/src/java.management/share/classes/javax/management/ConstructorProperties.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/src/java.management/share/classes/javax/management/ConstructorProperties.java Wed Sep 23 14:25:02 2015 +0200 @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2006, 2015 Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package javax.management; + +import java.lang.annotation.*; +import static java.lang.annotation.ElementType.*; +import static java.lang.annotation.RetentionPolicy.*; + +/** + *

+ * An annotation on a constructor that shows how the parameters of + * that constructor correspond to the constructed object's getter + * methods. For example: +*

+ *
+ *
+ *         public class MemoryUsage {
+ *             // standard JavaBean conventions with getters
+ *             @ConstructorProperties({"init", "used", "committed", "max"})
+ *             public MemoryUsage(long init, long used,
+ *                                long committed, long max) {...}
+ *             long getInit() {...}
+ *             long getUsed() {...}
+ *             long getCommitted() {...}
+ *             long getMax() {...}
+ *         }
+ *     
+ *
+ *

+ * The annotation shows that the first parameter of the constructor + * can be retrieved with the {@code getInit()} method, the second one with + * the {@code getUsed()} method, and so on. Since parameter names are not in + * general available at runtime, without the annotation there would be + * no way of knowing which parameter corresponds to which property. + *

+ *

+ * If a constructor is annotated by the both {@code @java.beans.ConstructorProperties} + * and {@code @javax.management.annotation.ConstructorProperties} annotations + * the JMX introspection will give an absolute precedence to the later one. + *

+ * + * @since 1.9 + */ +@Documented @Target(CONSTRUCTOR) @Retention(RUNTIME) +public @interface ConstructorProperties { + /** +

The getter names.

+ @return the getter names corresponding to the parameters in the + annotated constructor. + */ + String[] value(); +}