Bug 117148 Support Accessibility
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/model/attribute/util/AttributeValidator.java
import org.eclipse.birt.chart.model.attribute.AttributePackage;
import org.eclipse.birt.chart.model.attribute.AxisOrigin;
import org.eclipse.birt.chart.model.attribute.AxisType;
import org.eclipse.birt.chart.model.attribute.Bounds;
import org.eclipse.birt.chart.model.attribute.CallBackValue;
import org.eclipse.birt.chart.model.attribute.ChartDimension;
import org.eclipse.birt.chart.model.attribute.ChartType;
import org.eclipse.birt.chart.model.attribute.ColorDefinition;
import org.eclipse.birt.chart.model.attribute.DataPoint;
import org.eclipse.birt.chart.model.attribute.DataPointComponent;
import org.eclipse.birt.chart.model.attribute.DataPointComponentType;
import org.eclipse.birt.chart.model.attribute.DataType;
import org.eclipse.birt.chart.model.attribute.DateFormatDetail;
import org.eclipse.birt.chart.model.attribute.DateFormatSpecifier;
import org.eclipse.birt.chart.model.attribute.DateFormatType;
import org.eclipse.birt.chart.model.attribute.Direction;
import org.eclipse.birt.chart.model.attribute.EmbeddedImage;
import org.eclipse.birt.chart.model.attribute.ExtendedProperty;
import org.eclipse.birt.chart.model.attribute.Fill;
import org.eclipse.birt.chart.model.attribute.FontDefinition;
import org.eclipse.birt.chart.model.attribute.FormatSpecifier;
import org.eclipse.birt.chart.model.attribute.Gradient;
import org.eclipse.birt.chart.model.attribute.GroupingUnitType;
import org.eclipse.birt.chart.model.attribute.HorizontalAlignment;
import org.eclipse.birt.chart.model.attribute.Image;
import org.eclipse.birt.chart.model.attribute.Insets;
import org.eclipse.birt.chart.model.attribute.Interactivity;
import org.eclipse.birt.chart.model.attribute.IntersectionType;
import org.eclipse.birt.chart.model.attribute.JavaDateFormatSpecifier;
import org.eclipse.birt.chart.model.attribute.JavaNumberFormatSpecifier;