public static FdbRangeQuery <KeyValuePair <Slice, Slice> > GetRangeStartsWith(this IFdbReadOnlyTransaction trans, [NotNull] IFdbSubspace subspace, FdbRangeOptions options = null)
{
//REVIEW: should we remove this method?
Contract.Requires(trans != null && subspace != null);
return(trans.GetRange(FdbKeyRange.StartsWith(subspace.ToFoundationDbKey()), options));
}
/// <summary>Clear the entire content of a subspace</summary>
public static void ClearRange(this IFdbTransaction trans, [NotNull] IFdbSubspace subspace)
{
Contract.Requires(trans != null && subspace != null);
//BUGBUG: should we call subspace.ToRange() ?
trans.ClearRange(FdbKeyRange.StartsWith(subspace.ToFoundationDbKey()));
}
public virtual FdbKeyRange ToRange <TKey>(TKey key)
where TKey : IFdbKey
{
if (key == null)
{
throw new ArgumentNullException("key");
}
return(FdbKeyRange.StartsWith(ConcatKey(key.ToFoundationDbKey())));
}
/// <summary>Create a new pair of key selectors that will select all the keys that start with the specified prefix</summary>
public static FdbKeySelectorPair StartsWith(Slice prefix)
{
var range = FdbKeyRange.StartsWith(prefix);
return(new FdbKeySelectorPair(
FdbKeySelector.FirstGreaterOrEqual(range.Begin),
FdbKeySelector.FirstGreaterOrEqual(range.End)
));
}
public static FdbRangeQuery <KeyValuePair <Slice, Slice> > GetRangeStartsWith(this IFdbReadOnlyTransaction trans, [NotNull] FdbSubspace subspace, FdbRangeOptions options = null)
{
Contract.Requires(trans != null && subspace != null);
return(trans.GetRange(FdbKeyRange.StartsWith(subspace.Key), options));
}
/// <summary>Clear the entire content of a subspace</summary>
public static void ClearRange(this IFdbTransaction trans, [NotNull] FdbSubspace subspace)
{
Contract.Requires(trans != null && subspace != null);
trans.ClearRange(FdbKeyRange.StartsWith(subspace.Key));
}
public virtual FdbKeyRange ToRange(Slice suffix)
{
return(FdbKeyRange.StartsWith(ConcatKey(suffix)));
}
public virtual FdbKeyRange ToRange(Slice prefix)
{
return(FdbKeyRange.StartsWith(prefix));
}