ListenerList

java.lang.Object
- org.apache.commons.net.util.ListenerList<T>

Type Parameters:

T - the type of elements tracked by this list.

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<T>
```
public class ListenerList<T extends java.util.EventListener>
extends java.lang.Object
implements java.io.Serializable, java.lang.Iterable<T>
```
A list of event listeners.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

ListenerList()
Constructs a new instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addListener(T listener)`	Adds the given listener to the end of this list.
`int`	`getListenerCount()`	Gets the number of elements in this list.
`boolean`	`isEmpty()`	Tests whether if this listener list is empty.
`java.util.Iterator<T>`	`iterator()`	Return an `Iterator` for the `EventListener` instances.
`void`	`removeListener(T listener)`	Removes the first occurrence of the specified listener from this list, if it is present.

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

Methods inherited from interface java.lang.Iterable
forEach, spliterator

- Constructor Detail
  - ListenerList
```
public ListenerList()
```
    Constructs a new instance.
- Method Detail
  - addListener
```
public void addListener(T listener)
```
    Adds the given listener to the end of this list.
    
    Parameters:
    
    listener - A listener.
  - getListenerCount
```
public int getListenerCount()
```
    Gets the number of elements in this list.
    
    Returns:
    
    the number of elements in this list
  - isEmpty
```
public boolean isEmpty()
```
    Tests whether if this listener list is empty.
    
    Returns:
    
    whether if this listener list is empty.
    
    Since:
    
    3.12.0
  - iterator
```
public java.util.Iterator<T> iterator()
```
    Return an Iterator for the EventListener instances.
    
    Specified by:
    
    iterator in interface java.lang.Iterable<T extends java.util.EventListener>
    
    Returns:
    
    an Iterator for the EventListener instances
    
    Since:
    
    2.0 TODO Check that this is a good defensive strategy
  - removeListener
```
public void removeListener(T listener)
```
    Removes the first occurrence of the specified listener from this list, if it is present.
    
    Parameters:
    
    listener - listener to be removed from this list, if present.