## Uses of Class
org.apache.lucene.index.IndexWriter

Packages that use IndexWriter
org.apache.lucene.index: Code to maintain and access indices.
org.apache.lucene.search: Code to search indices.

Uses of IndexWriter in org.apache.lucene.index

Fields in org.apache.lucene.index declared as IndexWriter
`protected IndexWriter` `ConcurrentMergeScheduler.writer`

Fields in org.apache.lucene.index with type parameters of type IndexWriter
`protected SetOnce<IndexWriter>` `MergePolicy.writer`

Methods in org.apache.lucene.index with parameters of type IndexWriter
`protected IndexReader` `IndexReader.doOpenIfChanged(IndexWriter writer, boolean applyAllDeletes)` If the index has changed since it was opened, open and return a new reader; else, return `null`.
`protected ConcurrentMergeScheduler.MergeThread` `ConcurrentMergeScheduler.getMergeThread(IndexWriter writer, MergePolicy.OneMerge merge)` Create and return a new MergeThread
`void` `ConcurrentMergeScheduler.merge(IndexWriter writer)`
`abstract void` `MergeScheduler.merge(IndexWriter writer)` Run the merges provided by `getNextMerge()`.
`void` `NoMergeScheduler.merge(IndexWriter writer)`
`void` `SerialMergeScheduler.merge(IndexWriter writer)` Just do the merges in sequence.
`static IndexReader` `IndexReader.open(IndexWriter writer, boolean applyAllDeletes)` Open a near real time IndexReader from the `IndexWriter`.

`static IndexReader`

`IndexReader.openIfChanged(IndexReader oldReader, IndexWriter writer, boolean applyAllDeletes)`
Expert: If there changes (committed or not) in the `IndexWriter` versus what the provided reader is searching, then open and return a new read-only IndexReader searching both committed and uncommitted changes from the writer; else, return null (though, the current implementation never returns null).

`IndexReader` `IndexReader.reopen(IndexWriter writer, boolean applyAllDeletes)` Deprecated. Use `IndexReader.openIfChanged(IndexReader,IndexWriter,boolean)` instead
`void` `MergePolicy.setIndexWriter(IndexWriter writer)` Sets the `IndexWriter` to use by this merge policy.
`void` `NoMergePolicy.setIndexWriter(IndexWriter writer)`
`void` `UpgradeIndexMergePolicy.setIndexWriter(IndexWriter writer)`

Constructors in org.apache.lucene.index with parameters of type IndexWriter
`ConcurrentMergeScheduler.MergeThread(IndexWriter writer, MergePolicy.OneMerge startMerge)`

Uses of IndexWriter in org.apache.lucene.search

Methods in org.apache.lucene.search that return IndexWriter
`IndexWriter` `NRTManager.TrackingIndexWriter.getIndexWriter()`

Constructors in org.apache.lucene.search with parameters of type IndexWriter
`NRTManager.TrackingIndexWriter(IndexWriter writer)`
`SearcherManager(IndexWriter writer, boolean applyAllDeletes, SearcherFactory searcherFactory)` Creates and returns a new SearcherManager from the given `IndexWriter`.