portletrequest.java

portal越来越流行了

   * empty <code>Enumeration</code>. 
   * <p>
   * Only parameters targeted to the current portlet are returned.
   *
   *
   * @return		an <code>Enumeration</code> of <code>String</code>
   *			objects, each <code>String</code> containing
   * 			the name of a request parameter; or an 
   *			empty <code>Enumeration</code> if the
   *			request has no parameters.
   */

  public java.util.Enumeration<String> getParameterNames();


  /**
   * Returns an array of <code>String</code> objects containing 
   * all of the values the given request parameter has, or 
   * <code>null</code> if the parameter does not exist.
   * The returned parameters are "x-www-form-urlencoded" decoded.
   * <p>
   * If the parameter has a single value, the array has a length
   * of 1.
   *
   *
   * @param name	a <code>String</code> containing the name of 
   *			the parameter the value of which is requested
   *
   * @return		an array of <code>String</code> objects 
   *			containing the parameter values.
   *
   * @see		#getParameter
   *
   * @exception  java.lang.IllegalArgumentException 
   *                            if name is <code>null</code>.
   *
   */

  public String[] getParameterValues(String name);


  /** 
   * Returns a <code>Map</code> of the parameters of this request.
   * Request parameters are extra information sent with the request.  
   * The returned parameters are "x-www-form-urlencoded" decoded.
   * <p>
   * The values in the returned <code>Map</code> are from type
   * String array (<code>String[]</code>).
   * <p>
   * If no parameters exist this method returns an empty <code>Map</code>.
   *
   * @return     an immutable <code>Map</code> containing parameter names as 
   *             keys and parameter values as map values, or an empty <code>Map</code>
   *             if no parameters exist. The keys in the parameter
   *             map are of type String. The values in the parameter map are of type
   *             String array (<code>String[]</code>).
   */

  public java.util.Map<String, String[]> getParameterMap();


  /**
   * Returns a boolean indicating whether this request was made 
   * using a secure channel between client and the portal, such as HTTPS.
   * 
   * @return  true, if the request was made using a secure channel.
   */

  public boolean isSecure();


  /**
   * Stores an attribute in this request.
   *
   * <p>Attribute names should follow the same conventions as
   * package names. Names beginning with <code>java.*</code>,
   * <code>javax.*</code>, and <code>com.sun.*</code> are
   * reserved.
   *<br> If the value passed into this method is <code>null</code>, 
   * the effect is the same as calling {@link #removeAttribute}.
   *
   *
   * @param name			a <code>String</code> specifying 
   *					the name of the attribute
   *
   * @param o				the <code>Object</code> to be stored
   *
   *
   * @exception  java.lang.IllegalArgumentException 
   *                            if name is <code>null</code>.
   */
  
  public void setAttribute(String name, Object o);


  /**
   *
   * Removes an attribute from this request.  This method is not
   * generally needed, as attributes only persist as long as the request
   * is being handled.
   *
   * <p>Attribute names should follow the same conventions as
   * package names. Names beginning with <code>java.*</code>,
   * <code>javax.*</code>, and <code>com.sun.*</code> are
   * reserved.
   *
   * @param name			a <code>String</code> specifying 
   *					the name of the attribute to be removed
   *
   *
   * @exception  java.lang.IllegalArgumentException 
   *                            if name is <code>null</code>.
   */

  public void removeAttribute(String name);

   
  /**
   *
   * Returns the session ID indicated in the client request.
   * This session ID may not be a valid one, it may be an old 
   * one that has expired or has been invalidated.
   * If the client request
   * did not specify a session ID, this method returns
   * <code>null</code>.
   *
   * @return		a <code>String</code> specifying the session
   *			ID, or <code>null</code> if the request did
   *			not specify a session ID
   *
   * @see		#isRequestedSessionIdValid
   *
   */

  public String getRequestedSessionId();


  /**
   *
   * Checks whether the requested session ID is still valid.
   *
   * @return			<code>true</code> if this
   *				request has an id for a valid session
   *				in the current session context;
   *				<code>false</code> otherwise
   *
   * @see			#getRequestedSessionId
   * @see			#getPortletSession
   */

  public boolean isRequestedSessionIdValid();


  /**
   * Returns the portal preferred content type for the response.
   * <p>
   * The following restrictions apply:
   * <ul>
   * <li>The content type only includes the MIME type, not the
   * character set. The character set of the response
   * can be retrieved via the {@link RenderResponse#getCharacterEncoding}.</li>
   * <li>Only content types that the portlet has defined in its
   * deployment descriptor are valid return values for
   * this method call. If the portlet has defined
   * <code>'*'</code> or <code>'* / *'</code> as supported content
   * types, these may also be valid return values.</li>
   * </ul>
   * 
   * @return preferred MIME type of the response
   */

  public String getResponseContentType();


  /**
   * Gets a list of content types which the portal accepts for the response.
   * This list is ordered with the most preferable types listed first.
   * <p>
   * The following restrictions apply:
   * <ul>
   * <li>The content type only includes the MIME type, not the
   * character set.</li>
   * <li>Only content types that the portlet has defined in its
   * deployment descriptor are valid return values for
   * this method call. If the portlet has defined
   * <code>'*'</code> or <code>'* / *'</code> as supported content
   * types, these may also be valid return values.</li>
   * </ul>
   *
   * @return ordered list of MIME types for the response
   */

  public java.util.Enumeration<String> getResponseContentTypes();


  /**
   * Returns the preferred Locale in which the portal will accept content.
   * The Locale may be based on the Accept-Language header of the client.
   *
   * @return  the preferred Locale in which the portal will accept content.
   */

  public java.util.Locale getLocale();


  /**
   * Returns an Enumeration of Locale objects indicating, in decreasing
   * order starting with the preferred locale in which the portal will
   * accept content for this request.
   * The Locales may be based on the Accept-Language header of the client.
   * 
   * @return  an Enumeration of Locales, in decreasing order, in which 
   *           the portal will accept content for this request
   */

  public java.util.Enumeration<Locale> getLocales();


  /**
   * Returns the name of the scheme used to make this request.
   * For example, <code>http</code>, <code>https</code>, or <code>ftp</code>.
   * Different schemes have different rules for constructing URLs,
   * as noted in RFC 1738.
   *
   * @return		a <code>String</code> containing the name 
   *			of the scheme used to make this request
   */

  public String getScheme();
    

  /**
   * Returns the host name of the server that received the request.
   *
   * @return		a <code>String</code> containing the name 
   *			of the server to which the request was sent
   */

  public String getServerName();
    
    
  /**
   * Returns the port number on which this request was received.
   *
   * @return		an integer specifying the port number
   */

  public int getServerPort();

  /**
   * Returns the portlet window ID. The portlet window ID is 
   * unique for this portlet window and is constant for the lifetime
   * of the portlet window.
   * <p>
   * This ID is the same that is used by the portlet container for
   * scoping the portlet-scope session attributes.
   * 
   * @since 2.0
   * @return  the portlet window ID
   */
  public String getWindowID();
  
  
  /**
   * Returns an array containing all of the Cookie properties. 
   * <p>
   * This method returns <code>null</code> if no cookies exist.
   * 
   * @since 2.0
   * @return  array of cookie properties, or 
   *          <code>null</code> if no cookies exist.
   * @see MimeResponse#addProperty(Cookie) 
   */
  public javax.servlet.http.Cookie[] getCookies();
  
  /**
   * Returns a <code>Map</code> of the private parameters of this request.
   * Private parameters are not shared with other portlets or components.  
   * The returned parameters are "x-www-form-urlencoded" decoded.
   * <p>
   * The values in the returned <code>Map</code> are from type
   * String array (<code>String[]</code>).
   * <p>
   * If no private parameters exist this method returns an empty <code>Map</code>.
   *
   * @since 2.0
   * @return     an immutable <code>Map</code> containing private parameter names as 
   *             keys and private parameter values as map values, or an empty <code>Map</code>
   *             if no private parameters exist. The keys in the parameter
   *             map are of type String. The values in the parameter map are of type
   *             String array (<code>String[]</code>).
   */
  public java.util.Map<String, String[]> getPrivateParameterMap();
  
  /**
   * Returns a <code>Map</code> of the public parameters of this request.
   * Public parameters may be shared with other portlets or components and
   * defined in the portlet deployment descriptor with the 
   * <code>supported-public-render-parameter</code> element.  
   * The returned parameters are "x-www-form-urlencoded" decoded.
   * <p>
   * The values in the returned <code>Map</code> are from type
   * String array (<code>String[]</code>).
   * <p>
   * If no public parameters exist this method returns an empty <code>Map</code>.
   *
   * @since 2.0
   * @return     an immutable <code>Map</code> containing public parameter names as 
   *             keys and public parameter values as map values, or an empty <code>Map</code>
   *             if no public parameters exist. The keys in the parameter
   *             map are of type String. The values in the parameter map are of type
   *             String array (<code>String[]</code>).
   */
  public java.util.Map<String, String[]> getPublicParameterMap();

}