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

Packages that use IndexWriterConfig
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
`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.`setMaxBufferedDocs(int maxBufferedDocs)`
`IndexWriterConfig` IndexWriterConfig.`setMaxCommitMergeWaitMillis(long maxCommitMergeWaitMillis)` Expert: sets the amount of time to wait for merges (during `IndexWriter.commit()`) 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`.