/// <summary>
/// For internal use only.
/// </summary>
/// <param name="cacheQueryOptions"></param>
/// <param name="entityManagerParameterExpr"></param>
private CacheQueryExpressionVisitor(EntityQuery query, CacheQueryOptions cacheQueryOptions)
: base()
{
_query = query;
_cacheQueryOptions = cacheQueryOptions;
_entityManagerParameterExpr = Expression.Parameter(typeof(EntityManager));
}
public static bool NotEquals(String s1, String s2, CacheQueryOptions cqo)
{
if (cqo.UseSql92CompliantStringComparison)
{
s1 = (s1 ?? "").TrimEnd();
s2 = (s2 ?? "").TrimEnd();
}
return(!String.Equals(s1, s2, cqo.StringComparison));
}
/// <summary>
/// See <see cref="Object.Equals(Object)"/>.
/// </summary>
/// <param name="o"></param>
/// <returns></returns>
public override bool Equals(Object o)
{
if (o == null)
{
return(false);
}
CacheQueryOptions cqo = o as CacheQueryOptions;
if (cqo == null)
{
return(false);
}
return(cqo.StringComparison == this.StringComparison &&
cqo.UseSql92CompliantStringComparison == this.UseSql92CompliantStringComparison &&
cqo.GuidOrdering == this.GuidOrdering);
}
public static int IndexOf(String s1, String s2, CacheQueryOptions cqo)
{
return(s1.IndexOf(s2, cqo.StringComparison));
}
public static bool Contains(String s1, String s2, CacheQueryOptions cqo)
{
return(s1.IndexOf(s2, cqo.StringComparison) >= 0);
}
public static bool EndsWith(String s1, String s2, CacheQueryOptions cqo)
{
return(s1.EndsWith(s2, cqo.StringComparison));
}
public static Expression <Func <EntityManager, IEnumerable> > Visit(EntityQuery query, CacheQueryOptions cacheQueryOptions)
{
var visitor = new CacheQueryExpressionVisitor(query, cacheQueryOptions);
return(visitor.VisitRoot(query.Expression));
}
static CacheQueryOptions()
{
// same as DefaultSqlServerCompatibility.
// __default = new CacheQueryOptions(StringComparison.OrdinalIgnoreCase, true, GuidOrdering.SqlServer);
__default = new CacheQueryOptions(StringComparison.CurrentCultureIgnoreCase, true, GuidOrdering.SqlServer);
}