org.apache.lenya.cms.cocoon.acting
Class FirstChildExistsAction

java.lang.Object
  org.apache.avalon.framework.logger.AbstractLogEnabled
      org.apache.cocoon.acting.AbstractAction
          org.apache.lenya.cms.cocoon.acting.FirstChildExistsAction

All Implemented Interfaces:

org.apache.avalon.framework.component.Component, org.apache.avalon.framework.logger.LogEnabled, org.apache.cocoon.acting.Action

public class FirstChildExistsAction
extends org.apache.cocoon.acting.AbstractAction

Action that checks the sitetree if there is a child document with the current language.

Field Summary

Fields inherited from class org.apache.cocoon.acting.AbstractAction

EMPTY_MAP

Fields inherited from interface org.apache.cocoon.acting.Action

ROLE

Constructor Summary

FirstChildExistsAction()

Method Summary

java.util.Map

act(org.apache.cocoon.environment.Redirector redirector, org.apache.cocoon.environment.SourceResolver resolver, java.util.Map objectModel, java.lang.String source, org.apache.avalon.framework.parameters.Parameters parameters) Check if the current document-id has a child document for the currently requested language.

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

Constructor Detail

FirstChildExistsAction

public FirstChildExistsAction()

Method Detail

act

public java.util.Map act(org.apache.cocoon.environment.Redirector redirector,
                         org.apache.cocoon.environment.SourceResolver resolver,
                         java.util.Map objectModel,
                         java.lang.String source,
                         org.apache.avalon.framework.parameters.Parameters parameters)
                  throws PageEnvelopeException,
                         DocumentDoesNotExistException,
                         DocumentException,
                         SiteTreeException,
                         DocumentBuildException

Check if the current document-id has a child document for the currently requested language. If yes return an empty map, if not return null.

Parameters:

redirector - a Redirector value

resolver - a SourceResolver value

objectModel - a Map value

source - a String value

parameters - a Parameters value

Returns:

an empty Map if there is a version of this document for the current language, null otherwiese

Throws:

DocumentDoesNotExistException - if there is no document with the specified document-id.

PageEnvelopeException - if the PageEnvelope could not be created.

DocumentException - if the language information could not be fetched from the document.

SiteTreeException - if the sitetree couldn't be created

DocumentBuildException - if the DocumentBuilder couldn't be created