db4o |

# com.db4o.io Namespace

Input/Output abstraction layer.

Namespace hierarchy

### Classes

Class | Description
--- | ---
IoAdapter | Base class for database file adapters, both for file and memory databases.
MemoryIoAdapter | IoAdapter for in-memory operation.
RandomAccessFileAdapter | IO adapter for random access files.
SymbianIoAdapter | Workaround for two I/O bugs in Symbian JDK versions: - seek() cannot move beyond the current file length. Fix: Write padding bytes up to the seek target if necessary - Under certain (rare) conditions, calls to RAF.length() seems to garble up following reads. Fix: Use a second RAF handle to the file for length() calls only. Usage: Db4o.configure().io(new com.db4o.io.SymbianIoAdapter()) TODO: - BasicClusterTest C/S fails (in AllTests context only)
VanillaIoAdapter | base class for IoAdapters that delegate to other IoAdapters (decorator pattern)