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spring ide_2.3.0 » javax » servlet » jsp » tagext » ValidationMessage.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/


package javax.servlet.jsp.tagext;


/**
 * A validation message from either TagLibraryValidator or TagExtraInfo.
 * <p>
 * As of JSP 2.0, a JSP container must support a jsp:id attribute
 * to provide higher quality validation errors.
 * The container will track the JSP pages
 * as passed to the container, and will assign to each element
 * a unique "id", which is passed as the value of the jsp:id
 * attribute.  Each XML element in the XML view available will
 * be extended with this attribute.  The TagLibraryValidator
 * can then use the attribute in one or more ValidationMessage
 * objects.  The container then, in turn, can use these
 * values to provide more precise information on the location
 * of an error.
 *  
 * <p>
 * The actual prefix of the <code>id</code> attribute may or may not be 
 * <code>jsp</code> but it will always map to the namespace
 * <code>http://java.sun.com/JSP/Page</code>.  A TagLibraryValidator
 * implementation must rely on the uri, not the prefix, of the <code>id</code>
 * attribute.
 */

public class ValidationMessage {

    /**
     * Create a ValidationMessage.  The message String should be
     * non-null.  The value of id may be null, if the message
     * is not specific to any XML element, or if no jsp:id
     * attributes were passed on.  If non-null, the value of
     * id must be the value of a jsp:id attribute for the PageData
     * passed into the validate() method.
     *
     * @param id Either null, or the value of a jsp:id attribute.
     * @param message A localized validation message.
     */
    public ValidationMessage(String id, String message) {
  this.id = id;
  this.message = message;
    }


    /**
     * Get the jsp:id.
     * Null means that there is no information available.
     *
     * @return The jsp:id information.
     */
    public String getId() {
  return id;
    }

    /**
     * Get the localized validation message.
     *
     * @return A validation message
     */
    public String getMessage(){
  return message;
    }

    // Private data
    private String id;
    private String message;
}
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