SbEventHandler

java.lang.Object
- com.openinventor.inventor.SbEventHandler<E>

Type Parameters:

E - Type of event argument containing information about the event.
```
public abstract class SbEventHandler<E extends SbEventArg>
extends java.lang.Object
```
Base abstract class for all event handler.

Constructor Summary

Constructors
Constructor Description

SbEventHandler()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`addEventListener(SbEventListener<E> listener)`	Add a listener.
`void`	`clear()`
`boolean`	`removeEventListener(SbEventListener<E> listener)`	Remove a listener.

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

- Constructor Detail
  - SbEventHandler
```
public SbEventHandler()
```
- Method Detail
  - addEventListener
```
public boolean addEventListener(SbEventListener<E> listener)
```
    Add a listener.
    
    Parameters:
    
    listener -
    
    Returns:
  - removeEventListener
```
public boolean removeEventListener(SbEventListener<E> listener)
```
    Remove a listener. Note that when using method reference the remove method cannot be used. ChangeListener tabListener4 = this::tabChangeListener3; ChangeListener tabListener5 = this::tabChangeListener3 ; System.out.println(tabListener4.equals(tabListener5)); // <-- false
    
    Parameters:
    
    listener -
    
    Returns:
  - clear
```
public void clear()
```