// constructors
/// <summary>
/// Initializes a new instance of the MongoQueryable class.
/// </summary>
/// <param name="provider">The query provider.</param>
public SequoiaQueryable(SequoiaQueryProvider provider)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
_provider = provider;
_expression = Expression.Constant(this);
}
/// <summary>
/// Translate a MongoDB LINQ query.
/// </summary>
/// <param name="provider">The MongoDB query provider.</param>
/// <param name="expression">The LINQ query expression.</param>
/// <returns>A TranslatedQuery.</returns>
public static TranslatedQuery Translate(SequoiaQueryProvider provider, Expression expression)
{
expression = PartialEvaluator.Evaluate(expression, provider);
expression = ExpressionNormalizer.Normalize(expression);
// assume for now it's a SelectQuery
var documentType = GetDocumentType(expression);
var selectQuery = new SelectQuery(provider.Collection, documentType);
selectQuery.Translate(expression);
return(selectQuery);
}
/// <summary>
/// Initializes a new instance of the MongoQueryable class.
/// </summary>
/// <param name="provider">The query provider.</param>
/// <param name="expression">The expression.</param>
public SequoiaQueryable(SequoiaQueryProvider provider, Expression expression)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
if (expression == null)
{
throw new ArgumentNullException("expression");
}
if (!typeof(IQueryable <T>).IsAssignableFrom(expression.Type))
{
throw new ArgumentOutOfRangeException("expression");
}
_provider = provider;
_expression = expression;
}
/// <summary>
/// Returns an instance of IQueryable{{T}} for a MongoCollection.
/// </summary>
/// <typeparam name="T">The type of the returned documents.</typeparam>
/// <param name="collection">The name of the collection.</param>
/// <returns>An instance of IQueryable{{T}} for a MongoCollection.</returns>
public static IQueryable <T> AsQueryable <T>(this DBCollection <T> collection)
{
var provider = new SequoiaQueryProvider(collection);
return(new SequoiaQueryable <T>(provider));
}
