public abstract static class IndexWriter.IndexReaderWarmer extends Object
DirectoryReader.open(IndexWriter)
has
been called (ie, this writer is in near real-time
mode), then after a merge completes, this class can be
invoked to warm the reader on the newly merged
segment, before the merge commits. This is not
required for near real-time search, but will reduce
search latency on opening a new near real-time reader
after a merge completes.NOTE: warm is called before any deletes have been carried over to the merged segment.
Modifier | Constructor and Description |
---|---|
protected |
IndexReaderWarmer()
Sole constructor.
|
Modifier and Type | Method and Description |
---|---|
abstract void |
warm(LeafReader reader)
Invoked on the
LeafReader for the newly
merged segment, before that segment is made visible
to near-real-time readers. |
protected IndexReaderWarmer()
public abstract void warm(LeafReader reader) throws IOException
LeafReader
for the newly
merged segment, before that segment is made visible
to near-real-time readers.IOException
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