public CustomEntitySetOfT(
CustomMetadataWorkspace metadata,
CustomEntitySetType entitySetType,
CustomEntitySetContainer parentContainer
)
: base(metadata, entitySetType, parentContainer)
{
}
public CustomEntitySet(
CustomMetadataWorkspace metadata,
CustomEntitySetType entitySetType,
CustomEntitySetContainer parentContainer
)
{
Debug.Assert(null != metadata);
Debug.Assert(null != entitySetType);
_metadata = metadata;
_entitySetType = entitySetType;
_parentContainer = parentContainer;
}
protected virtual CustomEntitySet GetEntitySetByName(string entitySetName)
{
CustomEntitySet entitySet;
if (_entitySetMap.TryGetValue(entitySetName, out entitySet))
{
return(entitySet);
}
CustomEntitySetType entitySetType = MetadataWorkspace.GetEntitySet(entitySetName);
Type entitySetOfT = typeof(CustomEntitySetOfT <>).MakeGenericType(entitySetType.BaseElementType.ClrObjectType);
entitySet = (CustomEntitySet)Activator.CreateInstance(entitySetOfT, MetadataWorkspace, entitySetType, this);
return(_entitySetMap[entitySetName] = entitySet);
}
public IQueryable <EntityObjectType> CreateQueryOfT <EntityObjectType>(string entitySetName)
{
CustomUtils.CheckArgumentNotNull(entitySetName, "entitySetName");
CustomEntitySetType entitySetType = _metadata.GetEntitySet(entitySetName);
CustomEntityType entityType = _metadata.GetEntityType(typeof(EntityObjectType));
if (!entitySetType.BaseElementType.IsAssignableFrom(entityType))
{
throw new InvalidOperationException(String.Format(
"The base element type '{0}' of the entity set '{1}' is not compatible with " +
"the queried entity type '{2}'.",
entitySetType.BaseElementType, entitySetName, entityType
));
}
CustomEntitySet entitySet = GetEntitySetByName(entitySetName);
Debug.Assert(null != entitySet);
Debug.Assert(typeof(IEnumerable <EntityObjectType>).IsAssignableFrom(entitySet.GetType()));
return(((IEnumerable <EntityObjectType>)entitySet).AsQueryable());
}
