NightOwl888 commented on code in PR #1058:
URL: https://github.com/apache/lucenenet/pull/1058#discussion_r1997476884
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src/Lucene.Net.Spatial/Prefix/PrefixTreeStrategy.cs:
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@@ -157,17 +158,28 @@ public virtual Field[] CreateIndexableFields(IShape?
shape, double distErr)
IndexOptions = IndexOptions.DOCS_ONLY
}.Freeze();
- /// <summary>Outputs the tokenString of a cell, and if its a leaf,
outputs it again with the leaf byte.</summary>
+ /// <summary>
+ /// Outputs the tokenString of a cell, and if its a leaf, outputs it
again with the leaf byte.
+ /// </summary>
+ /// <remarks>
+ /// LUCENENET specific - This class originally took an enumerator,
which meant that it could not
+ /// be reused (since most IEnumerator implementations can only be
iterated once and throw on
Review Comment:
On another pass of this, I noticed that the `CellTokenStream` is internal.
So, the question here is whether or not the `Field[]` returned from
`CreateIndexableFields` is reusable. It is passed a `JCG.List<T>` from
`SpatialPrefixTree.GetCells()`, which supports `Reset()`. The only way to
change that is to create a custom subclass of `SpatialPrefixTree` to override
it. It seems like a minor thing to restrict this to only implementations of
`IEnumerable<T>` that support `Reset()` here, given that the user would have to
go out of their way to change it to something that does not.
What's the downside? The user passes an `IList<T>` that doesn't support
`Reset()` and it fails upon reuse. But in Lucene it would have failed upon
reuse, anyway.
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