May 26, 2018
Fast and lightweight key/value database library by Google
LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.
- Keys and values are arbitrary byte arrays.
- Data is stored sorted by key.
- Callers can provide a custom comparison function to override the sort order.
- The basic operations are Putkey,value, Getkey, Deletekey.
- Multiple changes can be made in one atomic batch.
- Users can create a transient snapshot to get a consistent view of data.
- Forward and backward iteration is supported over the data.
- Data is automatically compressed using the Snappy compression library.
- External activity file system operations etc. is relayed through a virtual interface so users can customize the operating system interactions.
- Detailed documentation about how to use the library is included with the source code.