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

- Packages that use IndexWriterConfig
  Package | Description
  --- | ---
  org.apache.lucene.index | Code to maintain and access indices.

- - ### Uses of IndexWriterConfig in org.apache.lucene.index

    Methods in org.apache.lucene.index that return IndexWriterConfig
    Modifier and Type | Method and Description
    --- | ---
    `IndexWriterConfig` | IndexWriterConfig.`setCheckPendingFlushUpdate(boolean checkPendingFlushOnUpdate)`
    `IndexWriterConfig` | IndexWriterConfig.`setCodec(Codec codec)` Set the `Codec`.
    `IndexWriterConfig` | IndexWriterConfig.`setCommitOnClose(boolean commitOnClose)` Sets if calls `IndexWriter.close()` should first commit before closing.
    `IndexWriterConfig` | IndexWriterConfig.`setIndexCommit(IndexCommit commit)` Expert: allows to open a certain commit point.
    `IndexWriterConfig` | IndexWriterConfig.`setIndexCreatedVersionMajor(int indexCreatedVersionMajor)` Expert: set the compatibility version to use for this index.
    `IndexWriterConfig` | IndexWriterConfig.`setIndexDeletionPolicy(IndexDeletionPolicy delPolicy)` Expert: allows an optional `IndexDeletionPolicy` implementation to be specified.
    `IndexWriterConfig` | IndexWriterConfig.`setIndexSort(Sort sort)` Set the `Sort` order to use for all (flushed and merged) segments.
    `IndexWriterConfig` | IndexWriterConfig.`setInfoStream(InfoStream infoStream)` Information about merges, deletes and a message when maxFieldLength is reached will be printed to this.
    `IndexWriterConfig` | IndexWriterConfig.`setInfoStream(PrintStream printStream)` Convenience method that uses `PrintStreamInfoStream`.
    `IndexWriterConfig` | IndexWriterConfig.`setLeafSorter(Comparator<LeafReader> leafSorter)` Set the comparator for sorting leaf readers.
    `IndexWriterConfig` | IndexWriterConfig.`setMaxBufferedDocs(int maxBufferedDocs)`
    `IndexWriterConfig` | IndexWriterConfig.`setMaxFullFlushMergeWaitMillis(long maxFullFlushMergeWaitMillis)` Expert: sets the amount of time to wait for merges (during `IndexWriter.commit()` or `IndexWriter.getReader(boolean, boolean)`) returned by MergePolicy.findFullFlushMerges(...).
    `IndexWriterConfig` | IndexWriterConfig.`setMergedSegmentWarmer(IndexWriter.IndexReaderWarmer mergeSegmentWarmer)`
    `IndexWriterConfig` | IndexWriterConfig.`setMergePolicy(MergePolicy mergePolicy)`
    `IndexWriterConfig` | IndexWriterConfig.`setMergeScheduler(MergeScheduler mergeScheduler)` Expert: sets the merge scheduler used by this writer.
    `IndexWriterConfig` | IndexWriterConfig.`setOpenMode(IndexWriterConfig.OpenMode openMode)` Specifies `IndexWriterConfig.OpenMode` of the index.
    `IndexWriterConfig` | IndexWriterConfig.`setRAMBufferSizeMB(double ramBufferSizeMB)`
    `IndexWriterConfig` | IndexWriterConfig.`setRAMPerThreadHardLimitMB(int perThreadHardLimitMB)` Expert: Sets the maximum memory consumption per thread triggering a forced flush if exceeded.
    `IndexWriterConfig` | IndexWriterConfig.`setReaderPooling(boolean readerPooling)` By default, IndexWriter does not pool the SegmentReaders it must open for deletions and merging, unless a near-real-time reader has been obtained by calling `DirectoryReader.open(IndexWriter)`.
    `IndexWriterConfig` | IndexWriterConfig.`setSimilarity(Similarity similarity)` Expert: set the `Similarity` implementation used by this IndexWriter.
    `IndexWriterConfig` | IndexWriterConfig.`setSoftDeletesField(String softDeletesField)` Sets the soft deletes field.
    `IndexWriterConfig` | IndexWriterConfig.`setUseCompoundFile(boolean useCompoundFile)`

    Constructors in org.apache.lucene.index with parameters of type IndexWriterConfig
    Constructor and Description
    `IndexUpgrader(Directory dir, IndexWriterConfig iwc, boolean deletePriorCommits)` Creates index upgrader on the given directory, using an `IndexWriter` using the given config.
    `IndexWriter(Directory d, IndexWriterConfig conf)` Constructs a new IndexWriter per the settings given in `conf`.

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