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

- Packages that use IndexWriter
  Package | Description
  --- | ---
  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
    Modifier and Type | Field and Description
    --- | ---
    `protected IndexWriter` | ConcurrentMergeScheduler.`writer` `IndexWriter` that owns this instance.

    Fields in org.apache.lucene.index with type parameters of type IndexWriter
    Modifier and Type | Field and Description
    --- | ---
    `protected SetOnce<IndexWriter>` | MergePolicy.`writer` `IndexWriter` that contains this instance.

    Methods in org.apache.lucene.index with parameters of type IndexWriter
    Modifier and Type | Method and Description
    --- | ---
    `protected abstract DirectoryReader` | DirectoryReader.`doOpenIfChanged(IndexWriter writer, boolean applyAllDeletes)` Implement this method to support `DirectoryReader.openIfChanged(DirectoryReader,IndexWriter,boolean)`.
    `protected ConcurrentMergeScheduler.MergeThread` | ConcurrentMergeScheduler.`getMergeThread(IndexWriter writer, MergePolicy.OneMerge merge)` Create and return a new MergeThread
    `void` | SerialMergeScheduler.`merge(IndexWriter writer)` Just do the merges in sequence.
    `void` | NoMergeScheduler.`merge(IndexWriter writer)`
    `abstract void` | MergeScheduler.`merge(IndexWriter writer)` Run the merges provided by `getNextMerge()`.
    `void` | ConcurrentMergeScheduler.`merge(IndexWriter writer)`
    `static DirectoryReader` | IndexReader.`open(IndexWriter writer, boolean applyAllDeletes)` Deprecated. Use `DirectoryReader.open(IndexWriter,boolean)`
    `static DirectoryReader` | DirectoryReader.`open(IndexWriter writer, boolean applyAllDeletes)` Open a near real time IndexReader from the `IndexWriter`.
    `static DirectoryReader` | DirectoryReader.`openIfChanged(DirectoryReader 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 IndexReader searching both committed and uncommitted changes from the writer; else, return null (though, the current implementation never returns null).
    `void` | UpgradeIndexMergePolicy.`setIndexWriter(IndexWriter writer)`
    `void` | NoMergePolicy.`setIndexWriter(IndexWriter writer)`
    `void` | MergePolicy.`setIndexWriter(IndexWriter writer)` Sets the `IndexWriter` to use by this merge policy.

    Constructors in org.apache.lucene.index with parameters of type IndexWriter
    Constructor and Description
    `ConcurrentMergeScheduler.MergeThread(IndexWriter writer, MergePolicy.OneMerge startMerge)` Sole constructor.
    `ReaderManager(IndexWriter writer, boolean applyAllDeletes)` Creates and returns a new ReaderManager from the given `IndexWriter`.

  - ### Uses of IndexWriter in org.apache.lucene.search

    Methods in org.apache.lucene.search that return IndexWriter
    Modifier and Type | Method and Description
    --- | ---
    `IndexWriter` | NRTManager.TrackingIndexWriter.`getIndexWriter()`

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

Copyright © 2000-2013 Apache Software Foundation. All Rights Reserved.