// Adds element to 'columns' for every element of 'properties'. Also returns a map from properties
// at this level to the corresponding columns.
private static Dictionary <EdmProperty, EntityDataSourcePropertyColumn> AddPropertyColumns(List <EntityDataSourceColumn> columns, MetadataWorkspace ocWorkspace, EntityDataSourceMemberPath parent, IEnumerable <EdmProperty> properties, ReadOnlyCollection <EdmMember> interestingMembers)
{
Dictionary <EdmProperty, EntityDataSourcePropertyColumn> result = new Dictionary <EdmProperty, EntityDataSourcePropertyColumn>();
foreach (EdmProperty property in properties)
{
bool isLocallyInteresting = interestingMembers.Contains(property);
EntityDataSourceMemberPath prefix = new EntityDataSourceMemberPath(ocWorkspace, parent, property, isLocallyInteresting);
EdmType propertyType = property.TypeUsage.EdmType;
// add column for this entity property
EntityDataSourcePropertyColumn propertyColumn = new EntityDataSourcePropertyColumn(prefix);
columns.Add(propertyColumn);
result.Add(property, propertyColumn);
if (propertyType.BuiltInTypeKind == BuiltInTypeKind.ComplexType)
{
// add nested properties
// prepend the property name to the members of the complex type
AddPropertyColumns(columns, ocWorkspace, prefix, ((ComplexType)propertyType).Properties, interestingMembers);
}
// other property types are not currently supported (or possible in EF V1 for that matter)
}
return(result);
}
internal EntityDataSourceMemberPath(MetadataWorkspace ocWorkspace, EntityDataSourceMemberPath parent, EdmProperty property, bool isLocallyInteresting)
{
EntityDataSourceUtil.CheckArgumentNull(ocWorkspace, "ocWorkspace");
EntityDataSourceUtil.CheckArgumentNull(property, "property");
this.property = property;
this.parent = parent;
this.isLocallyInteresting = isLocallyInteresting;
this.clrType = EntityDataSourceUtil.GetMemberClrType(ocWorkspace, property);
this.isKey = IsPropertyAKey(property);
// retrieve PropertyInfo (with respect to parent CLR type)
StructuralType parentType = property.DeclaringType;
Type parentClrType = EntityDataSourceUtil.GetClrType(ocWorkspace, parentType);
this.propertyInfo = EntityDataSourceUtil.GetPropertyInfo(parentClrType, this.property.Name);
}
private static IEnumerable <EntityDataSourceColumn> GetColumns(EntitySet entitySet, EntityType entityType,
MetadataWorkspace ocWorkspace, ReadOnlyCollection <EdmMember> interestingMembers)
{
List <EntityDataSourceColumn> columns = new List <EntityDataSourceColumn>();
// Primitive and complex properties
EntityDataSourceMemberPath parent = null; // top-level properties are not qualified
Dictionary <EdmProperty, EntityDataSourcePropertyColumn> entityProperties = AddPropertyColumns(columns, ocWorkspace, parent, entityType.Properties, interestingMembers);
// Navigation reference properties
AddReferenceNavigationColumns(columns, ocWorkspace, entitySet, entityType);
// Reference key properties
AddReferenceKeyColumns(columns, ocWorkspace, entitySet, entityType, entityProperties);
return(columns);
}
internal EntityDataSourceMemberPath(MetadataWorkspace ocWorkspace, EntityDataSourceMemberPath parent, EdmProperty property, bool isLocallyInteresting)
{
EntityDataSourceUtil.CheckArgumentNull(ocWorkspace, "ocWorkspace");
EntityDataSourceUtil.CheckArgumentNull(property, "property");
this.property = property;
this.parent = parent;
this.isLocallyInteresting = isLocallyInteresting;
this.clrType = EntityDataSourceUtil.GetMemberClrType(ocWorkspace, property);
this.isKey = IsPropertyAKey(property);
// retrieve PropertyInfo (with respect to parent CLR type)
StructuralType parentType = property.DeclaringType;
Type parentClrType = EntityDataSourceUtil.GetClrType(ocWorkspace, parentType);
this.propertyInfo = EntityDataSourceUtil.GetPropertyInfo(parentClrType, this.property.Name);
}
internal EntityDataSourcePropertyColumn(EntityDataSourceMemberPath memberPath)
: base(EntityDataSourceUtil.CheckArgumentNull(memberPath, "memberPath").GetDescription())
{
this.memberPath = memberPath;
}
internal EntityDataSourcePropertyColumn(EntityDataSourceMemberPath memberPath)
: base(EntityDataSourceUtil.CheckArgumentNull(memberPath, "memberPath").GetDescription())
{
this.memberPath = memberPath;
}
