## Uses of Class
org.apache.lucene.store.AlreadyClosedException

Packages that use AlreadyClosedException
org.apache.lucene.index: Code to maintain and access indices.
org.apache.lucene.store: Binary i/o API, used for all index data.

### Uses of AlreadyClosedException in org.apache.lucene.index

Methods in org.apache.lucene.index that throw AlreadyClosedException
`protected void` IndexReader.`ensureOpen()` Throws AlreadyClosedException if this IndexReader or any of its child readers is closed, otherwise returns.
`protected void` IndexWriter.`ensureOpen()` Used internally to throw an `AlreadyClosedException` if this IndexWriter has been closed (`closed=true`) or is in the process of closing (`closing=true`).
`protected void` IndexWriter.`ensureOpen(boolean failIfClosing)` Used internally to throw an `AlreadyClosedException` if this IndexWriter has been closed or is in the process of closing.

### Uses of AlreadyClosedException in org.apache.lucene.store

Methods in org.apache.lucene.store that throw AlreadyClosedException
`protected void` BaseDirectory.`ensureOpen()`
`protected void` Directory.`ensureOpen()` Ensures this directory is still open.