ControllerState (sakai-velocity-tool 22.0 API)

java.lang.Object
- org.sakaiproject.cheftool.ControllerState

All Implemented Interfaces:

Observer
```
public abstract class ControllerState
extends Object
implements Observer
```
ControllerState is the core base class for the CHEF Tool's state objects.

State objects are used to store controller state for a tool. Specific state object implement this interface.

To support creation of controller state objects, make sure to supply a void constructor.

To support pooling of objects, implement the recycle() method to release any resources and restore the object to initial conditions before reuse.

Constructor Summary

Constructors
Constructor Description

ControllerState()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getId()`
`String`	`getKey()`	Access a unique key for this state, combining the set id and the state id.
`String`	`getSetId()`
`protected void`	`init()`	Init to startup values
`void`	`recycle()`	Release any resources and restore the object to initial conditions to be reused.
`void`	`setId(String id)`
`void`	`setSetId(String id)`
`void`	`update(Observable o, Object arg)`	This method is called whenever the observed object is changed.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ControllerState
```
public ControllerState()
```
- Method Detail
  - init
```
protected void init()
```
    Init to startup values
  - recycle
```
public void recycle()
```
    Release any resources and restore the object to initial conditions to be reused.
  - getId
```
public String getId()
```
  - setId
```
public void setId(String id)
```
  - getSetId
```
public String getSetId()
```
  - setSetId
```
public void setSetId(String id)
```
  - getKey
```
public String getKey()
```
    Access a unique key for this state, combining the set id and the state id.
    
    Returns:
    
    A unique key for this state, combining the set id and the state id.
  - update
```
public void update(Observable o,
                   Object arg)
```
    This method is called whenever the observed object is changed. An application calls an Observable object's notifyObservers method to have all the object's observers notified of the change. default implementation is to cause the courier service to deliver to the interface controlled by my controller. Extensions can override.
    
    Specified by:
    
    update in interface Observer
    
    Parameters:
    
    o - the observable object.
    
    arg - an argument passed to the notifyObservers method.