/// <summary>
/// Tries to generate the Oftype or OfTypeOnly query view for a given entity set and type.
/// Returns false if the view could not be generated.
/// Possible reasons for failing are
/// 1) Passing in OfTypeOnly on an abstract type
/// 2) In user-specified query views mode a query for the given type is absent
/// </summary>
internal bool TryGetGeneratedViewOfType(MetadataWorkspace workspace, EntitySetBase entity, EntityTypeBase type, bool includeSubtypes, out GeneratedView generatedView)
{
OfTypeQVCacheKey key = new OfTypeQVCacheKey(entity, new Pair <EntityTypeBase, bool>(type, includeSubtypes));
generatedView = this.m_generatedViewOfTypeMemoizer.Evaluate(key);
return(generatedView != null);
}
/// <summary>
/// Note: Null return value implies QV was not generated.
/// </summary>
/// <returns></returns>
private GeneratedView SerializedGeneratedViewOfType(OfTypeQVCacheKey arg)
{
GeneratedView generatedView;
//See if we have collected user-defined QueryView
if (TryGetUserDefinedQueryViewOfType(arg, out generatedView))
{
return(generatedView);
}
//Now we have to generate the type-specific view
EntitySetBase entity = arg.First;
EntityTypeBase type = arg.Second.First;
bool includeSubtypes = arg.Second.Second;
if (!TryGenerateQueryViewOfType(entity.EntityContainer, entity, type, includeSubtypes, out generatedView))
{
generatedView = null;
}
return(generatedView);
}
/// <summary>
/// Note: Null return value implies QV was not generated.
/// </summary>
/// <returns> </returns>
private GeneratedView SerializedGeneratedViewOfType(OfTypeQVCacheKey arg)
{
GeneratedView generatedView;
//See if we have collected user-defined QueryView
if (TryGetUserDefinedQueryViewOfType(arg, out generatedView))
{
return generatedView;
}
//Now we have to generate the type-specific view
var entity = arg.First;
var type = arg.Second.First;
var includeSubtypes = arg.Second.Second;
if (!TryGenerateQueryViewOfType(entity.EntityContainer, entity, type, includeSubtypes, out generatedView))
{
generatedView = null;
}
return generatedView;
}
/// <summary>
/// Tries to generate the Oftype or OfTypeOnly query view for a given entity set and type.
/// Returns false if the view could not be generated.
/// Possible reasons for failing are
/// 1) Passing in OfTypeOnly on an abstract type
/// 2) In user-specified query views mode a query for the given type is absent
/// </summary>
internal bool TryGetGeneratedViewOfType(
EntitySetBase entity, EntityTypeBase type, bool includeSubtypes, out GeneratedView generatedView)
{
var key = new OfTypeQVCacheKey(entity, new Pair<EntityTypeBase, bool>(type, includeSubtypes));
generatedView = m_generatedViewOfTypeMemoizer.Evaluate(key);
return (generatedView != null);
}
/// <summary>
/// Tries to generate the Oftype or OfTypeOnly query view for a given entity set and type.
/// Returns false if the view could not be generated.
/// Possible reasons for failing are
/// 1) Passing in OfTypeOnly on an abstract type
/// 2) In user-specified query views mode a query for the given type is absent
/// </summary>
internal bool TryGetGeneratedViewOfType(MetadataWorkspace workspace, EntitySetBase entity, EntityTypeBase type, bool includeSubtypes, out GeneratedView generatedView)
{
OfTypeQVCacheKey key = new OfTypeQVCacheKey(entity, new Pair<EntityTypeBase, bool>(type, includeSubtypes));
generatedView = this.m_generatedViewOfTypeMemoizer.Evaluate(key);
return (generatedView != null);
}
