public static SelectSubqueryData Create(QueryParts parts, SubqueryParts subquery)
{
Contract.Requires(parts != null);
Contract.Requires(subquery != null);
var selects = new List<KeyValuePair<IQuerySource, Func<object, object>>>();
foreach (var s in subquery.Selects)
{
var factory = QuerySourceConverterFactory.Create(s.QuerySource, parts);
selects.Add(new KeyValuePair<IQuerySource, Func<object, object>>(factory.QuerySource, factory.Instancer));
}
return new SelectSubqueryData(selects);
}
public SubqueryParts(QueryParts parentQuery, bool canQueryInMemory, Expression selector, string contextName, QueryContext context)
: base(parentQuery.Locator,
contextName,
parentQuery.ConverterFactory,
parentQuery.Parameters,
context,
parentQuery.Simplifications,
parentQuery.ExpressionMatchers,
parentQuery.MemberMatchers,
parentQuery.ProjectionMatchers)
{
this.CanQueryInMemory = canQueryInMemory;
this.ParentQuery = parentQuery;
this.Selector = selector;
}
public SubqueryParts(QueryParts parentQuery, Expression selector, string contextName, QueryContext context)
: this(parentQuery, false, selector, contextName, context)
{
}
public static SubqueryParts ParseSubquery(QueryModel queryModel, QueryParts parentQuery, bool canQueryInMemory, string contextName, QueryContext context)
{
var visitor = new SubqueryGeneratorQueryModelVisitor(parentQuery, canQueryInMemory, queryModel.SelectClause.Selector, contextName, context);
visitor.VisitQueryModel(queryModel);
return visitor.QueryParts;
}
public static SubqueryParts ParseSubquery(QueryModel queryModel, QueryParts parentQuery, string contextName, QueryContext context)
{
return ParseSubquery(queryModel, parentQuery, false, contextName, context);
}
private SubqueryGeneratorQueryModelVisitor(QueryParts parentQuery, bool canQueryInMemory, Expression selector, string contextName, QueryContext context)
{
QueryParts = new SubqueryParts(parentQuery, canQueryInMemory, selector, contextName, context);
}