public IASTNode Translate(ISessionFactoryImplementor sessionFactory, bool filter)
{
if (ExpressionToHqlTranslationResults != null)
{
// Query has already been translated. Arguments do not really matter, because queries are anyway tied
// to a single session factory and cannot switch from being a filter query (query on a mapped collection)
// or not.
return(DuplicateTree(ExpressionToHqlTranslationResults.Statement.AstNode));
}
var requiredHqlParameters = new List <NamedParameterDescriptor>();
var queryModel = NhRelinqQueryParser.Parse(_expression);
var visitorParameters = new VisitorParameters(sessionFactory, _constantToParameterMap, requiredHqlParameters,
new QuerySourceNamer(), TargetType, QueryMode);
ExpressionToHqlTranslationResults = QueryModelVisitor.GenerateHqlQuery(queryModel, visitorParameters, true, ReturnType);
if (ExpressionToHqlTranslationResults.ExecuteResultTypeOverride != null)
{
Type = ExpressionToHqlTranslationResults.ExecuteResultTypeOverride;
}
ParameterDescriptors = requiredHqlParameters.AsReadOnly();
CanCachePlan = CanCachePlan &&
// If some constants do not have matching HQL parameters, their values from first query will
// be embedded in the plan and reused for subsequent queries: do not cache the plan.
!ParameterValuesByName
.Keys
.Except(requiredHqlParameters.Select(p => p.Name))
.Any();
// The ast node may be altered by caller, duplicate it for preserving the original one.
return(DuplicateTree(ExpressionToHqlTranslationResults.Statement.AstNode));
}
internal void CopyExpressionTranslation(NhLinqExpression other)
{
ExpressionToHqlTranslationResults = other.ExpressionToHqlTranslationResults;
ParameterDescriptors = other.ParameterDescriptors;
// Type could have been overridden by translation.
Type = other.Type;
}
