--- /dev/null	2018-06-17 23:18:20.806999507 +0800
+++ new/src/share/classes/jdk/jfr/SettingDefinition.java	2019-01-29 10:58:54.121890607 +0800
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2016, 2019, 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 jdk.jfr;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Annotation that signifies that a method in an event class should be used to
+ * filter out events.
+ * <p>
+ * For the method to be valid it must return a {@code SettingControl} and only have one
+ * parameter, which should be a non-abstract subclass of {@link SettingControl}
+ * <p>
+ * The return value of the method specifies whether the event is to be
+ * written to the Flight Recorder system or not.
+ * <p>
+ * Example.
+ *
+ * <pre>
+ * <code>
+ * class HelloWorld extend Event {
+ *
+ *   {@literal @}Label("Message");
+ *   String message;
+ *
+ *   {@literal @}SettingDefinition;
+ *   {@literal @}Label("Message Filter");
+ *   public boolean filter(RegExpControl regExp) {
+ *     return regExp.matches(message);
+ *   }
+ * }
+ * </code>
+ * </pre>
+ *
+ * For an example of how the setting controls are defined, see
+ * {@link SettingControl}.
+ *
+ * @see SettingControl
+ *
+ * @since 9
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ ElementType.METHOD })
+public @interface SettingDefinition {
+}