UpdateRunner (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

java.lang.Object
- elki.visualization.svg.UpdateRunner

```
public class UpdateRunner
extends java.lang.Object
```
Class to handle updates to an SVG plot, in particular when used in an Apache Batik UI.

Since:

0.3

Author:

Erich Schubert

Field Summary

Fields
Modifier and Type	Field	Description
`private java.util.concurrent.ConcurrentLinkedQueue<java.lang.Runnable>`	`queue`	The queue of pending updates
`private java.lang.Object`	`sync`	Owner/Synchronization object
`private UpdateSynchronizer`	`synchronizer`	Synchronizer that can block events from being executed right away.

Constructor Summary

Constructors
Modifier Constructor Description

protected UpdateRunner(java.lang.Object sync)
Construct a new update handler

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`	Clear queue.
`void`	`invokeLater(java.lang.Runnable r)`	Add a new update to run at any appropriate time.
`boolean`	`isEmpty()`	Check whether the queue is empty.
`void`	`runQueue()`	Run the processing queue now.
`void`	`synchronizeWith(UpdateSynchronizer newsync)`	Set a new update synchronizer.
`void`	`unsynchronizeWith(UpdateSynchronizer oldsync)`	Remove an update synchronizer

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

- Field Detail
  - sync
```
private java.lang.Object sync
```
    Owner/Synchronization object
  - queue
```
private final java.util.concurrent.ConcurrentLinkedQueue<java.lang.Runnable> queue
```
    The queue of pending updates
  - synchronizer
```
private UpdateSynchronizer synchronizer
```
    Synchronizer that can block events from being executed right away.
- Constructor Detail
  - UpdateRunner
```
protected UpdateRunner(java.lang.Object sync)
```
    Construct a new update handler
    
    Parameters:
    
    sync - Object to synchronize on
- Method Detail
  - invokeLater
```
public void invokeLater(java.lang.Runnable r)
```
    Add a new update to run at any appropriate time.
    
    Parameters:
    
    r - New runnable to perform the update
  - runQueue
```
public void runQueue()
```
    Run the processing queue now. This should usually be only invoked by the UpdateSynchronizer
  - clear
```
public void clear()
```
    Clear queue. For shutdown!
  - isEmpty
```
public boolean isEmpty()
```
    Check whether the queue is empty.
    
    Returns:
    
    queue status
  - synchronizeWith
```
public void synchronizeWith(UpdateSynchronizer newsync)
```
    Set a new update synchronizer.
    
    Parameters:
    
    newsync - Update synchronizer
  - unsynchronizeWith
```
public void unsynchronizeWith(UpdateSynchronizer oldsync)
```
    Remove an update synchronizer
    
    Parameters:
    
    oldsync - Update synchronizer to remove