Package org.apache.lucene.index
Class IndexWriter.IndexReaderWarmer
java.lang.Object
org.apache.lucene.index.IndexWriter.IndexReaderWarmer
- Direct Known Subclasses:
SimpleMergedSegmentWarmer
- Enclosing class:
- IndexWriter
If
DirectoryReader.open(IndexWriter,boolean)
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.-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionabstract void
warm
(AtomicReader reader) Invoked on theAtomicReader
for the newly merged segment, before that segment is made visible to near-real-time readers.
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Constructor Details
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IndexReaderWarmer
protected IndexReaderWarmer()Sole constructor. (For invocation by subclass constructors, typically implicit.)
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Method Details
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warm
Invoked on theAtomicReader
for the newly merged segment, before that segment is made visible to near-real-time readers.- Throws:
IOException
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