org.netbeans.spi.viewmodel

Interface AsynchronousModelFilter

All Superinterfaces:

Model

All Known Implementing Classes:

CachedChildrenTreeModel

public interface AsynchronousModelFilter
extends Model

Change threading of implemented models. Methods implemented in TreeModel, NodeModel (ExtendedNodeModel) and TableModel can be called synchronously in AWT thread as a direct response to user action (this is the default behavior), or asynchronously in a Request Processor or other thread. Register an implementation of this along with other models, if you need to change the original threading.

Since:

1.20

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	AsynchronousModelFilter.CALL This enumeration identifies method(s) of view models for which threading information is provided by AsynchronousModelFilter.asynchronous(java.util.concurrent.Executor, org.netbeans.spi.viewmodel.AsynchronousModelFilter.CALL, java.lang.Object) method.

Field Summary

Fields

Modifier and Type	Field and Description
static Executor	CURRENT_THREAD Executor for invocation of models method calls in the current thread.
static Executor	DEFAULT Executor, which uses a shared RequestProcessor with throughoutput = 1 for models method calls, making the method invocation asynchronous.

Method Summary

Modifier and Type	Method and Description
Executor	asynchronous(Executor original, AsynchronousModelFilter.CALL asynchCall, Object node) Change the threading information for view models method calls.

Field Detail

CURRENT_THREAD

static final Executor CURRENT_THREAD

Executor for invocation of models method calls in the current thread. This will make method invocation synchronous. It's important that the methods execute fast so that they do not block AWT thread. This is the default executor for AsynchronousModelFilter.CALL.DISPLAY_NAME and AsynchronousModelFilter.CALL.SHORT_DESCRIPTION.

DEFAULT

static final Executor DEFAULT

Executor, which uses a shared RequestProcessor with throughoutput = 1 for models method calls, making the method invocation asynchronous. The UI gives a visual feedback to the user if models method calls take a long time. Use this to keep the UI responsive. This is the default executor for AsynchronousModelFilter.CALL.CHILDREN and AsynchronousModelFilter.CALL.VALUE.

Method Detail

asynchronous

Executor asynchronous(Executor original,
                      AsynchronousModelFilter.CALL asynchCall,
                      Object node)
               throws UnknownTypeException

Change the threading information for view models method calls. The returned Executor is used to call methods identified by AsynchronousModelFilter.CALL enum.

Parameters:

original - The original Executor

asynchCall - Identification of the method call

node - Object node

Returns:

an instance of Executor

Throws:

UnknownTypeException