li.strolch.policy

Class StrolchPolicy

java.lang.Object

li.strolch.policy.StrolchPolicy

public abstract class StrolchPolicy
extends Object

Interface for all Strolch policies, which are instantiated by the PolicyHandler

Author:

Robert von Burg

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	logger

Constructor Summary

Constructors

Constructor and Description
StrolchPolicy(ComponentContainer container, StrolchTransaction tx) Instantiate a new Command

Method Summary

Modifier and Type	Method and Description
protected <V> V	getComponent(Class<V> clazz) Allows the concrete Command implementation access to StrolchComponents at runtime
protected ComponentContainer	getContainer()
protected Resource	getResource(Action action) Return the defined Resource on the given Action
protected StrolchTransaction	tx() Returns the StrolchTransaction bound to this Command's runtime
abstract void	undo()

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected static final org.slf4j.Logger logger

Constructor Detail

StrolchPolicy

public StrolchPolicy(ComponentContainer container,
                     StrolchTransaction tx)

Instantiate a new Command

Parameters:

container - the ComponentContainer to access components at runtime

tx -

Method Detail

getComponent

protected <V> V getComponent(Class<V> clazz)
                      throws IllegalArgumentException

Allows the concrete Command implementation access to StrolchComponents at runtime

Parameters:

clazz - the type of component to be returned

Returns:

the component with the given Class which is registered on the ComponentContainer

Throws:

IllegalArgumentException - if the component with the given class does not exist

getContainer

protected ComponentContainer getContainer()

Returns:

the container

tx

protected StrolchTransaction tx()

Returns the StrolchTransaction bound to this Command's runtime

Returns:

the StrolchTransaction bound to this Command's runtime

getResource

protected Resource getResource(Action action)
                        throws IllegalArgumentException,
                               StrolchException

Return the defined Resource on the given Action

Parameters:

action - the action for which to get the Resource

Returns:

the Resource

Throws:

IllegalArgumentException - if the resource is not defined on the action, i.e. fields are empty or a dash

StrolchException - if the resource does not exist, which is referenced by the action

undo

public abstract void undo()

See Also:

Command.undo()