org.apache.cocoon.portal.layout.renderer.aspect.impl
Class CompositeContentAspect

java.lang.Object
  org.apache.avalon.framework.logger.AbstractLogEnabled
      org.apache.cocoon.portal.layout.renderer.aspect.impl.AbstractAspect
          org.apache.cocoon.portal.layout.renderer.aspect.impl.AbstractCompositeAspect
              org.apache.cocoon.portal.layout.renderer.aspect.impl.CompositeContentAspect

All Implemented Interfaces:

Component, LogEnabled, Serviceable, ThreadSafe, RendererAspect

Direct Known Subclasses:

TabContentAspect

public class CompositeContentAspect
extends AbstractCompositeAspect

Add several contents.

Example XML:

  <composite>
   <item param1="value1" param2="value2">
     <!-- included content from following renderers for this item's layout-->
   </item>
   <item>
     <!-- included content from following renderers for this item's layout-->
   </item>
   <item param1="value1">
     <!-- included content from following renderers for this item's layout-->
   </item>
  </composite>
 

Applicable to:

• CompositeLayout

Parameters

root-tag	Enclose result in root tag?		boolean	true
tag-name	Name of root tag to use.		String	"composite"
item-tag	Enclose each item in item tag?		boolean	true
item-tag-name	Name of item tag to use.		String	"item"
root-tag-id	Value of optional id attribute for the root tag.		String	-
root-tag-class	Value of optional class attribute for the root tag.		String	-

Version:

CVS $Id:CompositeContentAspect.java 30932 2004-07-29 17:35:38Z vgritsenko $

Author:

Carsten Ziegeler, Volker Schmitt

Nested Class Summary

protected class

CompositeContentAspect.PreparedConfiguration

Field Summary

protected static String

ITEM_STRING

Fields inherited from class org.apache.cocoon.portal.layout.renderer.aspect.impl.AbstractAspect

manager

Fields inherited from interface org.apache.cocoon.portal.layout.renderer.aspect.RendererAspect

ROLE

Constructor Summary

CompositeContentAspect()

Method Summary

Object	prepareConfiguration(Parameters configuration) Compile the configuration.
protected void	processItem(RendererAspectContext context, Item item, ContentHandler handler, PortalService service) Process a single layout element.
void	toSAX(RendererAspectContext context, Layout layout, PortalService service, ContentHandler handler) Stream out raw layout

Methods inherited from class org.apache.cocoon.portal.layout.renderer.aspect.impl.AbstractCompositeAspect

processLayout

Methods inherited from class org.apache.cocoon.portal.layout.renderer.aspect.impl.AbstractAspect

getAspectDescriptions, isRequired, service

Methods inherited from class org.apache.avalon.framework.logger.AbstractLogEnabled

enableLogging, getLogger, setupLogger, setupLogger, setupLogger

Methods inherited from class java.lang.Object

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

Field Detail

ITEM_STRING

protected static final String ITEM_STRING

See Also:

Constant Field Values

Constructor Detail

CompositeContentAspect

public CompositeContentAspect()

Method Detail

toSAX

public void toSAX(RendererAspectContext context,
                  Layout layout,
                  PortalService service,
                  ContentHandler handler)
           throws SAXException

Description copied from interface: RendererAspect

Stream out raw layout

Specified by:

toSAX in interface RendererAspect

Overrides:

toSAX in class AbstractCompositeAspect

Throws:

SAXException

See Also:

AbstractCompositeAspect.toSAX(org.apache.cocoon.portal.layout.renderer.aspect.RendererAspectContext, org.apache.cocoon.portal.layout.Layout, org.apache.cocoon.portal.PortalService, org.xml.sax.ContentHandler)

processItem

protected void processItem(RendererAspectContext context,
                           Item item,
                           ContentHandler handler,
                           PortalService service)
                    throws SAXException

Description copied from class: AbstractCompositeAspect

Process a single layout element.

Specified by:

processItem in class AbstractCompositeAspect

item - layout item to be processed

handler - SAX handler taking events

service - portal service providing component access

Throws:

SAXException

See Also:

AbstractCompositeAspect.processItem(org.apache.cocoon.portal.layout.renderer.aspect.RendererAspectContext, org.apache.cocoon.portal.layout.Item, org.xml.sax.ContentHandler, org.apache.cocoon.portal.PortalService)

prepareConfiguration

public Object prepareConfiguration(Parameters configuration)
                            throws ParameterException

Description copied from interface: RendererAspect

Compile the configuration. A renderer aspect can "compile" the configuration in order to increase performance. If the renderer does not want to compile it should simply return the configuration. The "compiled" configuration is passed to the RendererAspect.getAspectDescriptions(Object) method and is available during streaming via the context object. This method can also be used for validation the configuration.

Specified by:

prepareConfiguration in interface RendererAspect

Overrides:

prepareConfiguration in class AbstractAspect

Throws:

ParameterException

See Also:

RendererAspect.prepareConfiguration(org.apache.avalon.framework.parameters.Parameters)