public DefaultExpressionManager(Net.Vpc.Upa.PersistenceUnit persistenceUnit)
{
this.persistenceUnit = persistenceUnit;
translationManager = new Net.Vpc.Upa.Impl.Uql.ExpressionTranslationManager(this, persistenceUnit);
validationManager = new Net.Vpc.Upa.Impl.Uql.ExpressionValidationManager(persistenceUnit);
expressionMetadataBuilder = new Net.Vpc.Upa.Impl.Uql.ExpressionMetadataBuilder(this, persistenceUnit);
parser = persistenceUnit.GetFactory().CreateObject <Net.Vpc.Upa.QLExpressionParser>(typeof(Net.Vpc.Upa.QLExpressionParser));
}
public virtual Net.Vpc.Upa.Expressions.Expression EvalString(string expression, object context)
{
if (expression == null)
{
return(null);
}
if ((expression).Length == 0)
{
return(new Net.Vpc.Upa.Expressions.Literal(""));
}
if (IsVarName(expression))
{
return(GetRegistry().GetTypeEvaluator(typeof(Net.Vpc.Upa.Expressions.Var)).EvalObject(new Net.Vpc.Upa.Expressions.Var(expression), this, context));
}
Net.Vpc.Upa.QLExpressionParser parser = Net.Vpc.Upa.UPA.GetBootstrapFactory().CreateObject <Net.Vpc.Upa.QLExpressionParser>(typeof(Net.Vpc.Upa.QLExpressionParser));
Net.Vpc.Upa.Expressions.Expression exprObj = parser.Parse(expression);
return(EvalObject(exprObj, context));
}
