public static Db.OeBoundFunctionParameter CreateBoundFunctionParameter(OeQueryContext queryContext)
{
var expressionBuilder = new OeExpressionBuilder(queryContext.JoinBuilder);
Type sourceEntityType = queryContext.EntitySetAdapter.EntityType;
IEdmEntitySet sourceEntitySet = OeEdmClrHelper.GetEntitySet(queryContext.EdmModel, queryContext.EntitySetAdapter.EntitySetName);
Expression source = OeEnumerableStub.CreateEnumerableStubExpression(sourceEntityType, sourceEntitySet);
source = expressionBuilder.ApplyNavigation(source, queryContext.ParseNavigationSegments);
IEdmEntitySet targetEntitySet = OeOperationHelper.GetEntitySet(queryContext.ODataUri.Path);
if (sourceEntitySet != targetEntitySet)
{
queryContext.ODataUri.Path = new ODataPath(new EntitySetSegment(targetEntitySet));
}
expressionBuilder = new OeExpressionBuilder(queryContext.JoinBuilder);
Type targetEntityType = queryContext.EdmModel.GetClrType(targetEntitySet.EntityType());
Expression target = OeEnumerableStub.CreateEnumerableStubExpression(targetEntityType, targetEntitySet);
target = expressionBuilder.ApplySelect(target, queryContext);
var sourceQueryExpression = new OeQueryExpression(queryContext.EdmModel, sourceEntitySet, source);
var targetQueryExpression = new OeQueryExpression(queryContext.EdmModel, targetEntitySet, target)
{
EntryFactory = expressionBuilder.CreateEntryFactory(targetEntitySet)
};
Type boundFunctionParameterType = typeof(Db.OeBoundFunctionParameter <,>).MakeGenericType(new[] { sourceEntityType, targetEntityType });
ConstructorInfo ctor = boundFunctionParameterType.GetConstructor(new[] { typeof(OeQueryExpression), typeof(OeQueryExpression) });
return((Db.OeBoundFunctionParameter)ctor.Invoke(new Object[] { sourceQueryExpression, targetQueryExpression }));
}
public static Expression GetExpression(IEdmModel edmModel, String query, IQueryable source)
{
var queryExpression = new OeQueryExpression(edmModel, query);
return(OeQueryContext.TranslateSource(edmModel, null, queryExpression._expression, e => source));
}
