org.apache.cocoon.generation
Class SessionAttributeGenerator

java.lang.Object
  org.apache.cocoon.util.AbstractLogEnabled
      org.apache.cocoon.xml.AbstractXMLProducer
          org.apache.cocoon.generation.AbstractGenerator
              org.apache.cocoon.generation.SessionAttributeGenerator

All Implemented Interfaces:

org.apache.cocoon.generation.Generator, Poolable, Recyclable, org.apache.cocoon.sitemap.SitemapModelComponent, org.apache.cocoon.xml.XMLProducer

public class SessionAttributeGenerator

extends org.apache.cocoon.generation.AbstractGenerator

Generates a document from a session attribute. Generates a document from a session attribute. The attribute may be a DOM node, an XMLizable, or any other object, and is streamed using the same rules as for <xsp:expr> in XSPs (see org.apache.cocoon.components.language.markup.xsp.XSPObjectHelper).

Name of the session attribute is specified using src attribute of the generate tag, or, if no src tag present, using attr-name parameter.

This generator has 2 parameters:

• attr-name : the session attribute name (mandatory if no src attribute specified).
• root-element (optional) : the name of the root element of the produced document. This parameter is optional if the session attribute is a DOM or an XMLizable.

Example usage :

   <map:generator name="session-attr" logger="sitemap.generator.session-attr"
     src="org.apache.cocoon.generation.SessionAttributeGenerator"/>
   ...
   <map:generate type="session-attr">
     <map:parameter name="attr-name" value="myAttribute"/>
     <map:parameter name="root-element" value="root"/>
   </map:generate>
 

Version:

$Id: SessionAttributeGenerator.html 1304280 2012-03-23 11:18:01Z ilgrosso $

See Also:

ReadDOMSessionTransformer, WriteDOMSessionTransformer

Field Summary

static String	ATTR_NAME
static String	ELEMENT_NAME

Fields inherited from class org.apache.cocoon.generation.AbstractGenerator

objectModel, parameters, resolver, source

Fields inherited from class org.apache.cocoon.xml.AbstractXMLProducer

contentHandler, EMPTY_CONTENT_HANDLER, lexicalHandler, xmlConsumer

Fields inherited from interface org.apache.cocoon.generation.Generator

ROLE

Constructor Summary

SessionAttributeGenerator()

Method Summary

void	generate() Generate XML data
void	setup(org.apache.cocoon.environment.SourceResolver resolver, Map objectModel, String src, Parameters par) Setup the file generator :try to retrieve the session attribute given as sitemap parameter

Methods inherited from class org.apache.cocoon.generation.AbstractGenerator

recycle

Methods inherited from class org.apache.cocoon.xml.AbstractXMLProducer

setConsumer, setContentHandler, setLexicalHandler

Methods inherited from class org.apache.cocoon.util.AbstractLogEnabled

getLogger, setLogger

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.cocoon.xml.XMLProducer

setConsumer

Field Detail

ATTR_NAME

public static final String ATTR_NAME

See Also:

Constant Field Values

ELEMENT_NAME

public static final String ELEMENT_NAME

See Also:

Constant Field Values

Constructor Detail

SessionAttributeGenerator

public SessionAttributeGenerator()

Method Detail

setup

public void setup(org.apache.cocoon.environment.SourceResolver resolver,
                  Map objectModel,
                  String src,
                  Parameters par)
           throws org.apache.cocoon.ProcessingException,
                  SAXException,
                  IOException

Setup the file generator :try to retrieve the session attribute given as sitemap parameter

Throws:

org.apache.cocoon.ProcessingException

SAXException

IOException

generate

public void generate()
              throws IOException,
                     SAXException,
                     org.apache.cocoon.ProcessingException

Generate XML data

Throws:

IOException

SAXException

org.apache.cocoon.ProcessingException