/*
 * Copyright (c) 2005, 2010, 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 com.sun.xml.internal.txw2.annotation;

import com.sun.xml.internal.txw2.TypedXmlWriter;

import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

/**
 * Specifies that the invocation of the method will produce an attribute.
 *
 * <p>
 * The method signature has to match the form <tt>R foo(DT1,DT2,..)</tt>
 *
 * <p>
 * R is either <tt>void</tt> or the type to which the interface that declares
 * this method is assignable. In the case of the latter, the method will return
 * <tt>this</tt> object, allowing you to chain the multiple attribute method
 * invocations like {@link StringBuffer}.
 *
 * <p>
 * DTi must be datatype objects.
 *
 * <p>
 * When this method is called, a new attribute is added to the current element,
 * whose value is whitespace-separated text from each of the datatype objects.
 *
 * @author Kohsuke Kawaguchi
 */
@Retention(RUNTIME)
@Target({METHOD})
public @interface XmlAttribute {
    /**
     * The local name of the attribute.
     *
     * <p>
     * If left unspecified, the method name is used as the attribute name.
     *
     */
    String value() default "";

    /**
     * The namespace URI of the attribute.
     */
    String ns() default "";
}
