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

- Packages that use AlreadyClosedException
  Package | Description
  --- | ---
  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
    Modifier and Type | Method | Description
    --- | --- | ---
    `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
    Modifier and Type | Method | Description
    --- | --- | ---
    `protected void` | BaseDirectory.`ensureOpen()` |
    `protected void` | Directory.`ensureOpen()` | Ensures this directory is still open.
    `protected void` | FilterDirectory.`ensureOpen()` |