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//------------------------------------------------------------------------------
// <copyright file="XmlSchemaParticle.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
//------------------------------------------------------------------------------
namespace System.Xml.Schema {
using System.Xml.Serialization;
/// <include file='doc\XmlSchemaParticle.uex' path='docs/doc[@for="XmlSchemaParticle"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public abstract class XmlSchemaParticle : XmlSchemaAnnotated {
[Flags]
enum Occurs {
None,
Min,
Max
};
decimal minOccurs = decimal.One;
decimal maxOccurs = decimal.One;
Occurs flags = Occurs.None;
/// <include file='doc\XmlSchemaParticle.uex' path='docs/doc[@for="XmlSchemaParticle.MinOccursString"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlAttribute("minOccurs")]
public string MinOccursString {
get {
return (flags & Occurs.Min) == 0 ? null : XmlConvert.ToString(minOccurs);
}
set {
if (value == null) {
minOccurs = decimal.One;
flags &= ~Occurs.Min;
}
else {
minOccurs = XmlConvert.ToInteger(value);
if (minOccurs < decimal.Zero) {
throw new XmlSchemaException(Res.Sch_MinOccursInvalidXsd, string.Empty);
}
flags |= Occurs.Min;
}
}
}
/// <include file='doc\XmlSchemaParticle.uex' path='docs/doc[@for="XmlSchemaParticle.MaxOccursString"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlAttribute("maxOccurs")]
public string MaxOccursString {
get {
return (flags & Occurs.Max) == 0 ? null : (maxOccurs == decimal.MaxValue) ? "unbounded" : XmlConvert.ToString(maxOccurs);
}
set {
if (value == null) {
maxOccurs = decimal.One;
flags &= ~Occurs.Max;
}
else {
if (value == "unbounded") {
maxOccurs = decimal.MaxValue;
}
else {
maxOccurs = XmlConvert.ToInteger(value);
if (maxOccurs < decimal.Zero) {
throw new XmlSchemaException(Res.Sch_MaxOccursInvalidXsd, string.Empty);
}
else if (maxOccurs == decimal.Zero && (flags & Occurs.Min) == 0) {
minOccurs = decimal.Zero;
}
}
flags |= Occurs.Max;
}
}
}
/// <include file='doc\XmlSchemaParticle.uex' path='docs/doc[@for="XmlSchemaParticle.MinOccurs"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public decimal MinOccurs {
get { return minOccurs; }
set {
if (value < decimal.Zero || value != decimal.Truncate(value)) {
throw new XmlSchemaException(Res.Sch_MinOccursInvalidXsd, string.Empty);
}
minOccurs = value;
flags |= Occurs.Min;
}
}
/// <include file='doc\XmlSchemaParticle.uex' path='docs/doc[@for="XmlSchemaParticle.MaxOccurs"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public decimal MaxOccurs {
get { return maxOccurs; }
set {
if (value < decimal.Zero || value != decimal.Truncate(value)) {
throw new XmlSchemaException(Res.Sch_MaxOccursInvalidXsd, string.Empty);
}
maxOccurs = value;
if (maxOccurs == decimal.Zero && (flags & Occurs.Min) == 0) {
minOccurs = decimal.Zero;
}
flags |= Occurs.Max;
}
}
internal virtual bool IsEmpty {
get { return maxOccurs == decimal.Zero; }
}
internal bool IsMultipleOccurrence {
get { return maxOccurs > decimal.One; }
}
internal virtual string NameString {
get {
return string.Empty;
}
}
internal XmlQualifiedName GetQualifiedName() {
XmlSchemaElement elem = this as XmlSchemaElement;
if (elem != null) {
return elem.QualifiedName;
}
else {
XmlSchemaAny any = this as XmlSchemaAny;
if (any != null) {
string ns = any.Namespace;
if (ns != null) {
ns = ns.Trim();
}
else {
ns = string.Empty;
}
return new XmlQualifiedName("*", ns.Length == 0 ? "##any" : ns);
}
}
return XmlQualifiedName.Empty; //If ever called on other particles
}
class EmptyParticle : XmlSchemaParticle {
internal override bool IsEmpty {
get { return true; }
}
}
internal static readonly XmlSchemaParticle Empty = new EmptyParticle();
}
}
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