public static OpenTypeMethodsImplementation GetImplementation(OpenTypeMethodsImplementations type, bool lazyEvaluation)
{
OpenTypeMethodsImplementation impl = null;
switch (type)
{
case OpenTypeMethodsImplementations.Default:
impl = new DefaultOpenTypeMethodsImplementation();
break;
case OpenTypeMethodsImplementations.Realistic:
impl = new RealisticOpenTypeMethodsImplementation();
break;
case OpenTypeMethodsImplementations.Tolerant:
impl = new TolerantOpenTypeMethodsImplementation();
break;
default:
return(null);
}
impl.UseLazyBooleanEvaluation = lazyEvaluation;
return(impl);
}
/// <summary>
/// Convert Late Bound Expression to CLR Expression
/// </summary>
/// <param name="ex">The Expression</param>
/// <param name="provider">The IDSQP provider instance</param>
/// <returns>The converted expression with no latebound methods</returns>
public static Expression ToClrExpression(Expression ex, IDataServiceQueryProvider provider)
{
if (OpenTypeMethodsImplementation == null)
{
OpenTypeMethodsImplementation = new DefaultOpenTypeMethodsImplementation();
}
if (DSPMethodsImplementation == null)
{
DSPMethodsImplementation = new DefaultDSPMethodsImplementation();
}
OpenTypeMethodsImplementation.QueryProvider = provider;
DSPMethodsImplementation.QueryProvider = provider;
LateBoundExpressionVisitor visitor = new LateBoundExpressionVisitor(OpenTypeMethodsImplementation, DSPMethodsImplementation);
return(visitor.Visit(ex));
}