portletdata.java

来自「jetspeed源代码」· Java 代码 · 共 139 行

/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2000-2001 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" and
 *     "Apache Jetspeed" must not be used to endorse or promote products
 *    derived from this software without prior written permission. For
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 * 5. Products derived from this software may not be called "Apache" or
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 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

package org.apache.jetspeed.portlet;

import java.util.Enumeration;

/**
 * The <CODE>PortletData</CODE> contains information about the virtual
 * instance of a portlet. Also, it is through the data that the portlet has
 * access to the personalized data.
 * 
 * @author <A HREF="mailto:[e-mail]">Thomas F. Boehme</A>
 */
public interface PortletData
{
    /**
     ** Sets the attribute with the given name and value.
     **
     ** @param   name
     **          the attribute name
     ** @param   value
     **          the attribute value
     **
     ** @exception   AccessDeniedException
     **              if the caller isn't authorized to access
     **              this data object
     **/

    public void setAttribute (String name, String value) throws AccessDeniedException;

    /**
     ** Returns the value of the attribute with the given name,
     ** or <CODE>null</CODE> if no such attribute exists.
     **
     ** @param   name
     **          the attribute name
     **
     ** @return   the attribute value
     **
     ** @exception   AccessDeniedException
     **              if the caller isn't authorized to access
     **              this data object
     **/

    public String getAttribute (String name) throws AccessDeniedException;

    /**
     ** Returns an enumeration of all available attributes names.
     **
     ** @return   an enumeration of attribute names
     **
     ** @exception   AccessDeniedException
     **              if the caller isn't authorized to access
     **              this data object
     **
     ** @see   #getAttribute(String)
     **/

    public Enumeration getAttributeNames () throws AccessDeniedException;

    /**
     ** Removes the attribute with the given name. If no such
     ** attribute exists, this method does nothing.
     **
     ** @param   name
     **          the attribute name
     **
     ** @exception   AccessDeniedException
     **              if the caller isn't authorized to access
     **              this data object
     **/

    public void removeAttribute (String name) throws AccessDeniedException;

    /**
     ** Removes all attributes. If no attributes exist, this method
     ** does nothing.
     **
     ** @exception   AccessDeniedException
     **              if the caller isn't authorized to access
     **              this data object
     **/

    public void removeAllAttributes () throws AccessDeniedException;

}