Eclipse Plug-in Developer Guide (Galileo) - WorkbenchObservables (Eclipse Platform API Specification)

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Eclipse Platform
Release 3.5

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org.eclipse.ui.databinding
Class WorkbenchObservables


java.lang.Object
  
org.eclipse.ui.databinding.WorkbenchObservables

public class WorkbenchObservables
extends Object
extends Object

Factory methods for creating observables for Workbench objects

Since:: 3.5

Constructor Summary

WorkbenchObservables ()


Method Summary

static IObservableValue observeAdaptedSingleSelection ( IServiceLocator locator, Class targetType)
          Returns an observable value that tracks the post selection of a selection service obtained through the given service locator, and adapts the first element of that selection to the given target type.

static IObservableValue observeDetailAdaptedValue ( IObservableValue master, Class adapter)
          Returns an observable with values of the given target type.

Methods inherited from class java.lang. Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WorkbenchObservables

public WorkbenchObservables()

Method Detail

observeDetailAdaptedValue

public static 
IObservableValue observeDetailAdaptedValue(
IObservableValue master,
                                                         
Class adapter)

Returns an observable with values of the given target type. If the wrapped observable's value is of the target type, or can be adapted to the target type, this is taken as the value of the returned observable, otherwise null.

Parameters:: master - the observable whose value should be adapted; adapter - the target type
Returns:: an observable with values of the given type, or null if the current value of the given observable does not adapt to the target type

observeAdaptedSingleSelection

public static 
IObservableValue observeAdaptedSingleSelection(
IServiceLocator locator,
                                                             
Class targetType)

Returns an observable value that tracks the post selection of a selection service obtained through the given service locator, and adapts the first element of that selection to the given target type.

This method can be used by view or editor implementers to tie into the selection service, for example as follows:

 IObservableValue selection = WorkbenchObservables
                .observeAdaptedSingleSelection(getSite(), IResource.class);

Parameters:: locator - a service locator with an available ISelectionService; targetType - the target type
Returns:: an observable value whose value type is the given target type