public override bool Equals(object obj)
{
if (obj is KeySchema)
{
KeySchema keySchema = obj as KeySchema;
return(this.QualifiedName.Equals(keySchema.QualifiedName));
}
return(false);
}
/// <summary>
/// The constraints must be initialized after the tables are constructed.
/// </summary>
/// <param name="xmlSchema"></param>
private void InitializeConstraints(XmlSchema xmlSchema)
{
// This will scan each of the top-level element of the schema looking for Unique and Key constraints. These
// constraints must be defined before the KeyRef constraints are created because the KeyRef constraints reference the
// Unique and Key constraints.
foreach (XmlSchemaObject xmlSchemaObject in xmlSchema.Items)
{
if (xmlSchemaObject is XmlSchemaElement)
{
XmlSchemaElement xmlSchemaElement = xmlSchemaObject as XmlSchemaElement;
foreach (XmlSchemaIdentityConstraint xmlSchemaIdentityConstraint in xmlSchemaElement.Constraints)
{
if (xmlSchemaIdentityConstraint is XmlSchemaUnique)
{
UniqueSchema uniqueSchema = new UniqueSchema(this, xmlSchemaIdentityConstraint as XmlSchemaUnique);
uniqueSchema.Selector.Constraints.Add(uniqueSchema);
}
if (xmlSchemaIdentityConstraint is XmlSchemaKey)
{
KeySchema keySchema = new KeySchema(this, xmlSchemaIdentityConstraint as XmlSchemaKey);
keySchema.Selector.Constraints.Add(keySchema);
}
}
}
}
// Once the Key and Unique constraints are described, the schema can be scanned for Keyref schemas. The 'Refer'
// property of the KeyrefSchema objects points to the KeySchema or UniqueSchema.
foreach (XmlSchemaObject xmlSchemaObject in xmlSchema.Items)
{
if (xmlSchemaObject is XmlSchemaElement)
{
XmlSchemaElement xmlSchemaElement = xmlSchemaObject as XmlSchemaElement;
foreach (XmlSchemaIdentityConstraint xmlSchemaIdentityConstraint in xmlSchemaElement.Constraints)
{
if (xmlSchemaIdentityConstraint is XmlSchemaKeyref)
{
KeyrefSchema keyrefSchema = new KeyrefSchema(this, xmlSchemaIdentityConstraint as XmlSchemaKeyref);
keyrefSchema.Selector.Constraints.Add(keyrefSchema);
}
}
}
}
}
