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org.apache.cocoon.transformation.helpers
Class PreemptiveLoaderAction

java.lang.Object
  org.apache.avalon.framework.logger.AbstractLogEnabled
      org.apache.cocoon.acting.AbstractAction
          org.apache.cocoon.acting.ServiceableAction
              org.apache.cocoon.transformation.helpers.PreemptiveLoaderAction

All Implemented Interfaces:

Component, LogEnabled, Serviceable, ThreadSafe, Action

public class PreemptiveLoaderAction
extends ServiceableAction
implements ThreadSafe

This action starts the preemptive loader and runs forever.

Since:

2.1

Version:

CVS $Id: PreemptiveLoaderAction.html 1304258 2012-03-23 10:09:27Z ilgrosso $

Author:

Carsten Ziegeler

Field Summary

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

manager

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

EMPTY_MAP

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

ROLE

Constructor Summary

PreemptiveLoaderAction()

Method Summary

Map	act(Redirector redirector, SourceResolver resolver, Map objectModel, String source, Parameters parameters) This action starts the preemptive loading It runs forever and is stopped by the DefaultIncludeCacheManager.

Methods inherited from class org.apache.cocoon.acting.ServiceableAction

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

Constructor Detail

PreemptiveLoaderAction

public PreemptiveLoaderAction()

Method Detail

act

public Map act(Redirector redirector,
               SourceResolver resolver,
               Map objectModel,
               String source,
               Parameters parameters)
        throws Exception

This action starts the preemptive loading It runs forever and is stopped by the DefaultIncludeCacheManager.

Specified by:

act in interface Action

resolver - The SourceResolver in charge

objectModel - The Map with object of the calling environment which can be used to select values this controller may need (ie Request, Response).

source - A source String to the Action

parameters - The Parameters for this invocation

Returns:

Map The returned Map object with sitemap substitution values which can be used in subsequent elements attributes like src= using a xpath like expression: src="mydir/{myval}/foo" If the return value is null the processing inside the element of the sitemap will be skipped.

Throws:

Exception - Indicates something is totally wrong

See Also:

Action.act(Redirector, SourceResolver, Map, String, Parameters)