BytesRefSorter (Lucene 9.0.0 suggest API)

All Known Implementing Classes:

ExternalRefSorter, InMemorySorter
```
public interface BytesRefSorter
```
Collects BytesRef and then allows one to iterate over their sorted order. Implementations of this interface will be called in a single-threaded scenario.

WARNING: This API is experimental and might change in incompatible ways in the next release.

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`add(BytesRef utf8)`	Adds a single suggestion entry (possibly compound with its bucket).
`Comparator<BytesRef>`	`getComparator()`	Comparator used to determine the sort order of entries.
`BytesRefIterator`	`iterator()`	Sorts the entries added in `add(BytesRef)` and returns an iterator over all sorted entries.

- Method Detail
  - add
```
void add(BytesRef utf8)
  throws IOException,
         IllegalStateException
```
    Adds a single suggestion entry (possibly compound with its bucket).
    
    Throws:
    
    IOException - If an I/O exception occurs.
    
    IllegalStateException - If an addition attempt is performed after a call to iterator() has been made.
  - iterator
```
BytesRefIterator iterator()
                   throws IOException
```
    Sorts the entries added in add(BytesRef) and returns an iterator over all sorted entries.
    
    Throws:
    
    IOException - If an I/O exception occurs.
  - getComparator
```
Comparator<BytesRef> getComparator()
```
    Comparator used to determine the sort order of entries.