Bug 126839 [DataBinding] IObservable refactoring
bundles/org.eclipse.jface.databinding/src/org/eclipse/jface/internal/provisional/databinding/BindingEvent.java
/**
	 * (Non-API Method) Construct a BindingEvent.
	 * 
	 * @param changeEvent
	 *            The ChangeEvent that is being processed.
	 * @param copyType
	 *            The type of copy that is being processed.
	 * @param pipelinePosition
	 *            The initial processing pipeline position.
	 */
	public BindingEvent(ChangeEvent changeEvent, int copyType,
			int pipelinePosition) {
		this.changeEvent = changeEvent;
		this.eventType = copyType;
		this.pipelinePosition = pipelinePosition;
		createSymbolTable();
	}