"class or interface in org.apache.lucene.index">addIndexes</a>, <a href="http://lucene.apache.org/core/5_1_0/core/org/apache/lucene/index/IndexWriter.html?is-external=true#commit()" title="class or interface in org.apache.lucene.index">commit</a>, <a href="http://lucene.apache.org/core/5_1_0/core/org/apache/lucene/index/IndexWriter.html?is-external=true#deleteAll()" title="class or interface in org.apache.lucene.index">deleteAll</a>, <a href="http://lucene.apache.org/core/5_1_0/core/org/apache/lucene/index/