Synchronizer (Eclipse Platform API Specification)

java.lang.Object
- org.eclipse.swt.widgets.Synchronizer

```
public class Synchronizer
extends Object
```
Instances of this class provide synchronization support for displays. A default instance is created automatically for each display, and this instance is sufficient for almost all applications.
IMPORTANT: Typical application code never needs to deal with this class. It is provided only to allow applications which require non-standard synchronization behavior to plug in the support they require. Subclasses which override the methods in this class must ensure that the superclass methods are invoked in their implementations

See Also:

Display.setSynchronizer(org.eclipse.swt.widgets.Synchronizer), Sample code and further information

Constructor Summary

Constructors
Constructor Description

Synchronizer(Display display)
Constructs a new instance of this class.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`asyncExec(Runnable runnable)`	Causes the `run()` method of the runnable to be invoked by the user-interface thread at the next reasonable opportunity.
`protected void`	`syncExec(Runnable runnable)`	Causes the `run()` method of the runnable to be invoked by the user-interface thread at the next reasonable opportunity.

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

- Constructor Detail
  - Synchronizer
```
public Synchronizer(Display display)
```
    Constructs a new instance of this class.
    
    Parameters:
    
    display - the display to create the synchronizer on
- Method Detail
  - asyncExec
```
protected void asyncExec(Runnable runnable)
```
    Causes the run() method of the runnable to be invoked by the user-interface thread at the next reasonable opportunity. The caller of this method continues to run in parallel, and is not notified when the runnable has completed.
    
    Parameters:
    
    runnable - code to run on the user-interface thread.
    
    See Also:
    
    syncExec(java.lang.Runnable)
  - syncExec
```
protected void syncExec(Runnable runnable)
```
    Causes the run() method of the runnable to be invoked by the user-interface thread at the next reasonable opportunity. The thread which calls this method is suspended until the runnable completes.
    Parameters:
    
    runnable - code to run on the user-interface thread.
    
    Throws:
    
    SWTException -
    
    ERROR_FAILED_EXEC - if an exception occurred when executing the runnable
    
    See Also:
    
    asyncExec(java.lang.Runnable)