things.thinger.service.httptool
Class ActionManager

java.lang.Object
  things.thinger.service.httptool.ActionManager

Direct Known Subclasses:

ActionManager_Stock

public abstract class ActionManager
extends java.lang.Object

The action manager handles all mapping actions to classes.

Version:

1.0

Version History

EPG - Initial - 17 NOV 07
 

Author:

Erich P. Gatejen

Field Summary

protected SystemInterface

si The system interface.

Constructor Summary

ActionManager()
Constructor.

Method Summary

Action	get(java.lang.String actionName) Get an action implementation.
abstract java.lang.String	getMainName() Get the main action.
protected abstract void	init_chain() The initialization chain.
void	init(SystemInterface si) Initialize the manager.
protected abstract Action	load(java.lang.String actionName) Load an action by name.

Methods inherited from class java.lang.Object

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

Field Detail

si

protected SystemInterface si

The system interface. It will be set by the system before get is ever called.

Constructor Detail

ActionManager

public ActionManager()

Constructor.

Method Detail

getMainName

public abstract java.lang.String getMainName()
                                      throws ThingsException

Get the main action. Consider this the index.html of the system.

Returns:

the name of the main action.

Throws:

ThingsException - for any problem.

load

protected abstract Action load(java.lang.String actionName)
                        throws java.lang.Throwable

Load an action by name. This will not come from the cache. Use get() if you want the cache. Most user applications should use get() instead.

Parameters:

actionName - the name of the action.

Returns:

the action or null if it could not be found.

Throws:

java.lang.Throwable - for any problem (except for it not being found). This is usually fatal.

init_chain

protected abstract void init_chain()
                            throws ThingsException

The initialization chain. This will be called when the system inits the manager. It gives the base class a chance to init. The si (SystemInterface) will be set and usable. The system may call this more than once. If it does, the state should be reset and the initialization done again.

Throws:

ThingsException - for any problem.

init

public void init(SystemInterface si)
          throws ThingsException

Initialize the manager. This will be called by the system, so there is no need to do it yourself.

Throws:

ThingsException - by the init_chain if applicable. The base will never throw it.

get

public Action get(java.lang.String actionName)
           throws java.lang.Throwable

Get an action implementation. It will get it from the cache. If it isn't in the cache, it'll load it. They are not pooled right now. It will return null if it could not be found.

Parameters:

actionName - the name of the action.

Returns:

The action implementation or null if it wasn't found.

Throws:

java.lang.Throwable