XmlSchemaInfo.cs

namespace System.Xml.Schema
{
    public class XmlSchemaInfo : IXmlSchemaInfo
    {
        private bool isDefault;

        private bool isNil;

        private XmlSchemaElement schemaElement;

        private XmlSchemaAttribute schemaAttribute;

        private XmlSchemaType schemaType;

        private XmlSchemaSimpleType memberType;

        private XmlSchemaValidity validity;

        private XmlSchemaContentType contentType;

        public XmlSchemaValidity Validity
        {
            get
            {
                return validity;
            }
            set
            {
                validity = value;
            }
        }

        public bool IsDefault
        {
            get
            {
                return isDefault;
            }
            set
            {
                isDefault = value;
            }
        }

        public bool IsNil
        {
            get
            {
                return isNil;
            }
            set
            {
                isNil = value;
            }
        }

        public XmlSchemaSimpleType MemberType
        {
            get
            {
                return memberType;
            }
            set
            {
                memberType = value;
            }
        }

        public XmlSchemaType SchemaType
        {
            get
            {
                return schemaType;
            }
            set
            {
                schemaType = value;
                if (schemaType != null)
                {
                    contentType = schemaType.SchemaContentType;
                }
                else
                {
                    contentType = XmlSchemaContentType.Empty;
                }
            }
        }

        public XmlSchemaElement SchemaElement
        {
            get
            {
                return schemaElement;
            }
            set
            {
                schemaElement = value;
                if (value != null)
                {
                    schemaAttribute = null;
                }
            }
        }

        public XmlSchemaAttribute SchemaAttribute
        {
            get
            {
                return schemaAttribute;
            }
            set
            {
                schemaAttribute = value;
                if (value != null)
                {
                    schemaElement = null;
                }
            }
        }

        public XmlSchemaContentType ContentType
        {
            get
            {
                return contentType;
            }
            set
            {
                contentType = value;
            }
        }

        internal XmlSchemaType XmlType
        {
            get
            {
                if (memberType != null)
                {
                    return memberType;
                }
                return schemaType;
            }
        }

        internal bool HasDefaultValue
        {
            get
            {
                if (schemaElement != null)
                {
                    return schemaElement.ElementDecl.DefaultValueTyped != null;
                }
                return false;
            }
        }

        internal bool IsUnionType
        {
            get
            {
                if (schemaType == null || schemaType.Datatype == null)
                {
                    return false;
                }
                return schemaType.Datatype.Variety == XmlSchemaDatatypeVariety.Union;
            }
        }

        public XmlSchemaInfo()
        {
            Clear();
        }

        internal XmlSchemaInfo(XmlSchemaValidity validity)
            : this()
        {
            this.validity = validity;
        }

        internal void Clear()
        {
            isNil = false;
            isDefault = false;
            schemaType = null;
            schemaElement = null;
            schemaAttribute = null;
            memberType = null;
            validity = XmlSchemaValidity.NotKnown;
            contentType = XmlSchemaContentType.Empty;
        }
    }
}