Bug 117148 Support Accessibility
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/model/attribute/util/AttributeValidator.java
case AttributePackage.EXTENDED_PROPERTY :
				return validateExtendedProperty( (ExtendedProperty) value,
						diagnostics,
						context );
			case AttributePackage.FILL :
				return validateFill( (Fill) value, diagnostics, context );
			case AttributePackage.FONT_DEFINITION :
				return validateFontDefinition( (FontDefinition) value,
						diagnostics,
						context );
			case AttributePackage.FORMAT_SPECIFIER :
				return validateFormatSpecifier( (FormatSpecifier) value,
						diagnostics,
						context );
			case AttributePackage.FRACTION_NUMBER_FORMAT_SPECIFIER :
				return validateFractionNumberFormatSpecifier( (FractionNumberFormatSpecifier) value,
						diagnostics,
						context );
			case AttributePackage.GRADIENT :
				return validateGradient( (Gradient) value, diagnostics, context );
			case AttributePackage.IMAGE :
				return validateImage( (Image) value, diagnostics, context );
			case AttributePackage.INSETS :
				return validateInsets( (Insets) value, diagnostics, context );
			case AttributePackage.INTERACTIVITY :
				return validateInteractivity( (Interactivity) value,
						diagnostics,
						context );
			case AttributePackage.JAVA_DATE_FORMAT_SPECIFIER :
				return validateJavaDateFormatSpecifier( (JavaDateFormatSpecifier) value,