public RemoteProvider(WebHttpClient<IQueryService> client)
{
this.client = client;
this.visitor = new StripQuoteVisitor();
this.resolver = new TypeResolver(assemblies: null, knownTypes: client.knownTypes ?? new Type[0]);
CustomExpressionXmlConverter queryconverter = new QueryExpressionXmlConverter(creator: null, resolver: resolver);
CustomExpressionXmlConverter knowntypeconverter = new KnownTypeExpressionXmlConverter(resolver);
this.serializer = new ExpressionSerializer(resolver, new CustomExpressionXmlConverter[] { queryconverter, knowntypeconverter });
}
public RemoteProvider(WebHttpClient <IQueryService> client)
{
this.client = client;
visitor = new StripQuoteVisitor();
resolver = new TypeResolver(null, client.knownTypes ?? new Type[0]);
CustomExpressionXmlConverter queryconverter = new QueryExpressionXmlConverter(null, resolver);
CustomExpressionXmlConverter knowntypeconverter = new KnownTypeExpressionXmlConverter(resolver);
serializer = new ExpressionSerializer(resolver, new[] { queryconverter, knowntypeconverter });
}
static ExpressionSerializer CreateSerializer()
{
var assemblies = new Assembly[] { typeof(Customer).Assembly, typeof(ExpressionType).Assembly, typeof(IQueryable).Assembly };
var resolver = new TypeResolver(assemblies, new Type[]
{
typeof(Customer), typeof(Order), typeof(Product),
typeof(Supplier), typeof(Shipper)
});
//var creator = new QueryCreator();
CustomExpressionXmlConverter queryconverter = new QueryExpressionXmlConverter(creator: null, resolver: resolver);
CustomExpressionXmlConverter knowntypeconverter = new KnownTypeExpressionXmlConverter(resolver);
ExpressionSerializer serializer = new ExpressionSerializer(resolver, new CustomExpressionXmlConverter[] { queryconverter, knowntypeconverter });
return serializer;
//ExpressionSerializer serializer = new ExpressionSerializer()
}
public NorthwindService()
{
var connectionStrings = System.Configuration.ConfigurationManager.ConnectionStrings;
this.connectionString = connectionStrings["northwind"].ConnectionString;
this.creator = new QueryCreator(this.FnGetDatabaseObjects);
this.assemblies = new Assembly[] { typeof(Customer).Assembly, typeof(ExpressionType).Assembly, typeof(IQueryable).Assembly };
this.resolver = new TypeResolver(assemblies, new Type[]
{
typeof(Customer), typeof(Order), typeof(Product),
typeof(Supplier), typeof(Shipper)
});
CustomExpressionXmlConverter queryconverter = new QueryExpressionXmlConverter(creator, this.resolver);
CustomExpressionXmlConverter knowntypeconverter = new KnownTypeExpressionXmlConverter(this.resolver);
this.serializer = new ExpressionSerializer(resolver, new CustomExpressionXmlConverter[] { queryconverter, knowntypeconverter });
}
public void QueryExpressionXmlConverterTest()
{
Type elementType = typeof(Customer);
var creator = new QueryCreator(this.FnGetObjects);
var converter = new QueryExpressionXmlConverter(creator, this.resolver);
bool success;
XElement x;
Expression e;
MethodCallExpression m;
ConstantExpression cx;
IQueryProvider provider;
//the client Query. IQueryProvider has not real data.
Query<Customer> query = new Query<Customer>(default(IQueryProvider));
provider = ((IQueryable)query).Provider;
IQueryable<Customer> queryable;
queryable = from c in query
where c.ID == null //initialized with properties == null
select c;
//serialize to XML
e = Expression.Constant(queryable);
success = converter.TrySerialize(e, out x);
//deserialize to ConstantExpression(Query)
success = converter.TryDeserialize(x, out e);
cx = (ConstantExpression)e;
Query<Customer> serverquery = (Query<Customer>)cx.Value;
//upon deserialization, should have a new IQueryProvider
Assert.AreNotEqual(provider, ((IQueryable)serverquery).Provider);
provider = ((IQueryable)serverquery).Provider;
//Execute Query on server side.
int count = serverquery.Count();
}
