private void ResolveAssociationEnd(XmlReader reader, MetadataAssociationEnd member)
{
int depth = reader.Depth;
var properties = new List <string>();
//解析关系顶点下的成员元素
while (reader.Read() && reader.Depth > depth)
{
if (reader.NodeType != XmlNodeType.Element)
{
continue;
}
switch (reader.Name)
{
case XML_PROPERTYREF_ELEMENT:
var propertyName = this.GetAttributeValue <string>(reader, XML_NAME_ATTRIBUTE, null);
if (!string.IsNullOrWhiteSpace(propertyName))
{
properties.Add(propertyName);
}
break;
case XML_CONSTRAINTS_ELEMENT:
while (reader.Read() && reader.Depth > depth + 1)
{
if (reader.NodeType != XmlNodeType.Element)
{
continue;
}
if (reader.Name == XML_CONSTRAINT_ELEMENT)
{
var constraint = new MetadataAssociationEndConstraint(reader.GetAttribute(XML_PROPERTYNAME_ATTRIBUTE),
reader.GetAttribute(XML_VALUE_ATTRIBUTE),
this.GetAttributeValue <ConditionOperator>(reader, XML_OPERATOR_ATTRIBUTE, ConditionOperator.Equal));
member.Constraints.Add(constraint);
}
else
{
this.ProcessUnrecognizedElement(reader, null, member);
}
}
break;
default:
this.ProcessUnrecognizedElement(reader, null, member);
break;
}
}
if (properties.Count > 0)
{
member.Properties = properties.ToArray();
}
}
private void ResolveAssociation(XmlReader reader, MetadataConceptContainer container)
{
//创建关系元素对象
var association = new MetadataAssociation(reader.GetAttribute(XML_NAME_ATTRIBUTE));
int depth = reader.Depth;
while (reader.Read() && reader.Depth > depth)
{
if (reader.NodeType != XmlNodeType.Element)
{
continue;
}
if (reader.Name == XML_END_ELEMENT)
{
var member = new MetadataAssociationEnd(reader.GetAttribute(XML_NAME_ATTRIBUTE), reader.GetAttribute(XML_ENTITY_ATTRIBUTE))
{
Multiplicity = this.GetAttributeValue <MetadataAssociationMultiplicity>(reader, XML_MULTIPLICITY_ATTRIBUTE, MetadataAssociationMultiplicity.One),
};
//解析当前关系顶点的内部元素
this.ResolveAssociationEnd(reader, member);
//将解析成功的命令参数元素加入到命令的参数集合
association.Members.Add(member);
}
else
{
this.ProcessUnrecognizedElement(reader, null, container);
}
}
container.Associations.Add(association);
}
public MetadataAssociationEndConstraintCollection(MetadataAssociationEnd owner) : base(owner)
{
}
