Bug 210609 [Smoke]Crosstab is failed to preview in runtime
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/extension/ExtendedElementUIPoint.java
*/
	ExtendedElementUIPoint() {
		
		setAttribute(IExtensionConstants.ATTRIBUTE_EDITOR_SHOW_IN_DESIGNER, Boolean.TRUE);
		setAttribute(IExtensionConstants.ATTRIBUTE_EDITOR_SHOW_IN_MASTERPAGE,
				Boolean.TRUE);
		setAttribute(IExtensionConstants.ATTRIBUTE_EDITOR_CAN_RESIZE, Boolean.TRUE);
		setAttribute(IExtensionConstants.ATTRIBUTE_PALETTE_CATEGORY,
				IPreferenceConstants.PALETTE_CONTENT);
	}
	/**
	 * Gets the extension name of the element
	 * 
	 * @return Returns the extension name;
	 */
	public String getExtensionName() {
		return extensionName;
	}
	/**
	 * Gets the UI instance of the element
	 * 
	 * @return Returns the UI instance;
	 */
	public IReportItemFigureProvider getReportItemUI() {
		return reportItemUI;
	}
	public IReportItemBuilderUI getReportItemBuilderUI() {
		return (IReportItemBuilderUI) classMap.get(IExtensionConstants.ELEMENT_BUILDER);
	}
	/**