jdk/src/share/classes/java/beans/Transient.java
author malenkov
Tue, 11 Sep 2012 10:58:39 +0400
changeset 13773 69665c88db93
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child 19213 c360667a0da2
permissions -rw-r--r--
7193977: REGRESSION:Java 7's JavaBeans persistence ignoring the "transient" flag on properties Reviewed-by: rupashka
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/*
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 * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package java.beans;
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import java.lang.annotation.Retention;
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import java.lang.annotation.Target;
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import static java.lang.annotation.ElementType.METHOD;
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import static java.lang.annotation.RetentionPolicy.RUNTIME;
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/**
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 * Indicates that an attribute called "transient"
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 * should be declared with the given {@code value}
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 * when the {@link Introspector} constructs
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 * a {@link PropertyDescriptor} or {@link EventSetDescriptor}
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 * classes associated with the annotated code element.
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 * A {@code true} value for the "transient" attribute
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 * indicates to encoders derived from {@link Encoder}
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 * that this feature should be ignored.
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 * <p/>
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 * The {@code Transient} annotation may be be used
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 * in any of the methods that are involved
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 * in a {@link FeatureDescriptor} subclass
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 * to identify the transient feature in the annotated class and its subclasses.
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 * Normally, the method that starts with "get" is the best place
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 * to put the annotation and it is this declaration
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 * that takes precedence in the case of multiple annotations
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 * being defined for the same feature.
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 * <p/>
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 * To declare a feature non-transient in a class
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 * whose superclass declares it transient,
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 * use {@code @Transient(false)}.
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 * In all cases, the {@link Introspector} decides
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 * if a feature is transient by referring to the annotation
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 * on the most specific superclass.
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 * If no {@code Transient} annotation is present
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 * in any superclass the feature is not transient.
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 *
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 * @since 1.7
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 */
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@Target({METHOD})
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@Retention(RUNTIME)
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public @interface Transient {
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    boolean value() default true;
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}