Bug 117148 Support Accessibility
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/model/attribute/util/AttributeValidator.java
case AttributePackage.STYLED_COMPONENT :
				return validateStyledComponent( (StyledComponent) value,
						diagnostics,
						context );
			case AttributePackage.TICK_STYLE :
				return validateTickStyle( (TickStyle) value,
						diagnostics,
						context );
			case AttributePackage.TRIGGER_CONDITION :
				return validateTriggerCondition( (TriggerCondition) value,
						diagnostics,
						context );
			case AttributePackage.TRIGGER_FLOW :
				return validateTriggerFlow( (TriggerFlow) value,
						diagnostics,
						context );
			case AttributePackage.UNITS_OF_MEASUREMENT :
				return validateUnitsOfMeasurement( (UnitsOfMeasurement) value,
						diagnostics,
						context );
			case AttributePackage.VERTICAL_ALIGNMENT :
				return validateVerticalAlignment( (VerticalAlignment) value,
						diagnostics,
						context );
			case AttributePackage.ACTION_TYPE_OBJECT :
				return validateActionTypeObject( (ActionType) value,
						diagnostics,
						context );
			case AttributePackage.ANCHOR_OBJECT :
				return validateAnchorObject( (Anchor) value,