// Constructors
// ReSharper disable MemberCanBeProtected.Global
public SubQuery(ProjectionExpression projectionExpression, TranslatedQuery query, Parameter <Tuple> parameter, Tuple tuple, ItemMaterializationContext context)
// ReSharper restore MemberCanBeProtected.Global
{
this.provider = context.Session.Query.Provider;
var tupleParameterBindings = new Dictionary <Parameter <Tuple>, Tuple>(projectionExpression.TupleParameterBindings);
var currentTranslatedQuery = query;
var outerParameterContext = context.ParameterContext;
var parameterContext = new ParameterContext(outerParameterContext);
// Gather Parameter<Tuple> values from current ParameterScope for future use.
outerParameterContext.SetValue(parameter, tuple);
foreach (var tupleParameter in currentTranslatedQuery.TupleParameters)
{
var value = outerParameterContext.GetValue(tupleParameter);
tupleParameterBindings[tupleParameter] = value;
parameterContext.SetValue(tupleParameter, value);
}
this.projectionExpression = new ProjectionExpression(
projectionExpression.Type,
projectionExpression.ItemProjector,
tupleParameterBindings,
projectionExpression.ResultAccessMethod);
var translatedQuery = new TranslatedQuery(
query.DataSource,
query.Materializer,
query.ResultAccessMethod,
tupleParameterBindings,
EnumerableUtils <Parameter <Tuple> > .Empty);
delayedQuery = new DelayedQuery <TElement>(context.Session, translatedQuery, parameterContext);
context.Session.RegisterUserDefinedDelayedQuery(delayedQuery.Task);
context.MaterializationContext.MaterializationQueue.Enqueue(MaterializeSelf);
}
private TranslatedQuery Translate(ProjectionExpression projection,
IEnumerable <Parameter <Tuple> > tupleParameterBindings)
{
var newItemProjector = projection.ItemProjector.EnsureEntityIsJoined();
var result = new ProjectionExpression(
projection.Type,
newItemProjector,
projection.TupleParameterBindings,
projection.ResultAccessMethod);
var optimized = Optimize(result);
// Prepare cached query, if required
var prepared = compiledQueryScope != null
? PrepareCachedQuery(optimized, compiledQueryScope)
: optimized;
// Compilation
var dataSource = prepared.ItemProjector.DataSource;
var compiled = context.Domain.Handler.CompilationService.Compile(dataSource, context.RseCompilerConfiguration);
// Build materializer
var materializer = BuildMaterializer(prepared, tupleParameterBindings);
var translatedQuery = new TranslatedQuery(
compiled, materializer, prepared.ResultAccessMethod,
projection.TupleParameterBindings, tupleParameterBindings);
// Providing the result to caching layer, if required
if (compiledQueryScope != null && translatedQuery.TupleParameters.Count == 0)
{
var parameterizedQuery = new ParameterizedQuery(
translatedQuery,
compiledQueryScope.QueryParameter);
compiledQueryScope.ParameterizedQuery = parameterizedQuery;
return(parameterizedQuery);
}
return(translatedQuery);
}
// Constructors
// ReSharper disable MemberCanBeProtected.Global
public SubQuery(ProjectionExpression projectionExpression, TranslatedQuery query, Parameter <Tuple> parameter, Tuple tuple, ItemMaterializationContext context)
// ReSharper restore MemberCanBeProtected.Global
{
this.provider = context.Session.Query.Provider;
var tupleParameterBindings = new Dictionary <Parameter <Tuple>, Tuple>(projectionExpression.TupleParameterBindings);
var currentTranslatedQuery = ((TranslatedQuery <IEnumerable <TElement> >)query);
// Gather Parameter<Tuple> values from current ParameterScope for future use.
parameter.Value = tuple;
foreach (var tupleParameter in currentTranslatedQuery.TupleParameters)
{
var value = tupleParameter.Value;
tupleParameterBindings[tupleParameter] = value;
}
var parameterContext = new ParameterContext();
using (parameterContext.Activate())
foreach (var tupleParameter in currentTranslatedQuery.TupleParameters)
{
tupleParameter.Value = tupleParameter.Value;
}
this.projectionExpression = new ProjectionExpression(
projectionExpression.Type,
projectionExpression.ItemProjector,
tupleParameterBindings,
projectionExpression.ResultType);
var translatedQuery = new TranslatedQuery <IEnumerable <TElement> >(
query.DataSource,
(Func <IEnumerable <Tuple>, Session, Dictionary <Parameter <Tuple>, Tuple>, ParameterContext, IEnumerable <TElement> >)query.UntypedMaterializer,
tupleParameterBindings,
EnumerableUtils <Parameter <Tuple> > .Empty);
delayedSequence = new DelayedSequence <TElement>(context.Session, translatedQuery, parameterContext);
context.Session.RegisterUserDefinedDelayedQuery(delayedSequence.Task);
context.MaterializationContext.MaterializationQueue.Enqueue(MaterializeSelf);
}
public ParameterizedQuery(TranslatedQuery translatedQuery, Parameter parameter)
: base(translatedQuery.DataSource, translatedQuery.Materializer, translatedQuery.ResultAccessMethod)
{
QueryParameter = parameter;
}
public ParameterizedQuery(TranslatedQuery <TResult> translatedQuery, Parameter parameter)
: base(translatedQuery.DataSource, translatedQuery.Materializer)
{
QueryParameter = parameter;
}
static TResult ExecuteScalarQuery(TranslatedQuery query, Session session, ParameterContext parameterContext)
{
return(query.ExecuteScalar <TResult>(session, parameterContext));
}
public Grouping(ProjectionExpression projectionExpression, TranslatedQuery translatedQuery, Parameter <Tuple> parameter, Tuple tuple, TKey key, ItemMaterializationContext context)
: base(projectionExpression, translatedQuery, parameter, tuple, context)
{
Key = key;
}
