/// <summary>
/// Retrieve the root "Schema" node for current node. If there is no root mapping node, this will return null.
/// </summary>
internal override XNamespace GetRootNamespace(EFObject node)
{
var currNode = node;
EFRuntimeModelRoot runtimeModel = null;
EFDesignerInfoRoot designerInfo = null;
XNamespace ns = null;
while (currNode != null)
{
runtimeModel = currNode as EFRuntimeModelRoot;
designerInfo = currNode as EFDesignerInfoRoot;
if (runtimeModel != null)
{
ns = runtimeModel.XNamespace;
break;
}
else if (designerInfo != null)
{
ns = designerInfo.XNamespace;
break;
}
else
{
currNode = currNode.Parent;
}
}
return(ns);
}
private static bool CompareNamespaces(EFRuntimeModelRoot rootNode, XNamespace xnamespace)
{
Debug.Assert(xnamespace != null, "xnamespace != null");
Debug.Assert(rootNode == null || rootNode.XNamespace != null, "invalid model root namespace");
return(rootNode == null || rootNode.XNamespace == xnamespace);
}
private static string GetSchemaFromRuntimeModelRoot(EFRuntimeModelRoot modelRoot)
{
Debug.Assert(modelRoot != null, "EFRuntimeModelRoot is null ");
Debug.Assert(modelRoot.XElement != null,
"Could not find the runtime model root or its XElement in GetSchemaFromRuntimeModelRoot");
var sb = new StringBuilder();
if (modelRoot != null &&
modelRoot.XElement != null)
{
using (var writer = new StringWriter(sb, CultureInfo.CurrentCulture))
{
modelRoot.XElement.Save(writer);
}
}
return(sb.ToString());
}
private static bool CompareNamespaces(EFRuntimeModelRoot rootNode, XNamespace xnamespace)
{
Debug.Assert(xnamespace != null, "xnamespace != null");
Debug.Assert(rootNode == null || rootNode.XNamespace != null, "invalid model root namespace");
return rootNode == null || rootNode.XNamespace == xnamespace;
}
private static string GetSchemaFromRuntimeModelRoot(EFRuntimeModelRoot modelRoot)
{
Debug.Assert(modelRoot != null, "EFRuntimeModelRoot is null ");
Debug.Assert(modelRoot.XElement != null,
"Could not find the runtime model root or its XElement in GetSchemaFromRuntimeModelRoot");
var sb = new StringBuilder();
if (modelRoot != null
&& modelRoot.XElement != null)
{
using (var writer = new StringWriter(sb, CultureInfo.CurrentCulture))
{
modelRoot.XElement.Save(writer);
}
}
return sb.ToString();
}