/// <summary>
/// Compile the query into a MobileServiceTableQueryDescription.
/// </summary>
/// <returns>
/// The compiled OData query.
/// </returns>
internal MobileServiceTableQueryDescription Compile <T>(MobileServiceTableQuery <T> query)
{
// Compile the query from the underlying IQueryable's expression
// tree
MobileServiceTableQueryTranslator <T> translator = new MobileServiceTableQueryTranslator <T>(query);
MobileServiceTableQueryDescription compiledQuery = translator.Translate();
return(compiledQuery);
}
/// <summary>
/// Translate an expression tree into a compiled query description that
/// can be executed on the server.
/// </summary>
/// <param name="expression">The expression tree.</param>
/// <returns>A compiled query description.</returns>
public static MobileServiceTableQueryDescription Translate(Expression expression)
{
Debug.Assert(expression != null, "expression cannot be null!");
// Evaluate any independent subexpressions so we end up with a tree
// full of constants or things that depend directly on our values.
expression = PartialEvaulator.PartiallyEvalulate(expression);
// Build a new query from the expression tree
MobileServiceTableQueryTranslator translator = new MobileServiceTableQueryTranslator();
translator.Visit(expression);
return translator.query;
}
/// <summary>
/// Translate an expression tree into a compiled query description that
/// can be executed on the server.
/// </summary>
/// <param name="expression">The expression tree.</param>
/// <returns>A compiled query description.</returns>
public static MobileServiceTableQueryDescription Translate(Expression expression)
{
Debug.Assert(expression != null, "expression cannot be null!");
// Evaluate any independent subexpressions so we end up with a tree
// full of constants or things that depend directly on our values.
expression = PartialEvaulator.PartiallyEvalulate(expression);
// Build a new query from the expression tree
MobileServiceTableQueryTranslator translator = new MobileServiceTableQueryTranslator();
translator.Visit(expression);
return(translator.query);
}
/// <summary>
/// Compile the query into a MobileServiceTableQueryDescription.
/// </summary>
/// <returns>The compiled OData query.</returns>
internal MobileServiceTableQueryDescription Compile()
{
// Compile the query from the underlying IQueryable's expression
// tree
MobileServiceTableQueryDescription compiledQuery = MobileServiceTableQueryTranslator.Translate(this.Query.Expression);
// Forward along the request for the total count
compiledQuery.IncludeTotalCount = this.RequestTotalCount;
// Associate the current table with the compiled query
if (string.IsNullOrEmpty(compiledQuery.TableName))
{
SerializableType type = SerializableType.Get(
compiledQuery.ProjectionArgumentType ?? typeof(T));
compiledQuery.TableName = type.TableName;
}
return(compiledQuery);
}
