com.sleepycat.db
Interface DbHash

public interface DbHash

An interface specifying a hashing function, which imposes a total ordering on the Hash database.

Method Summary

int	hash(Db db, byte[] data, int len) The DbHash interface is used by the Db.setHash method.

Method Detail

hash

public int hash(Db db,
                byte[] data,
                int len)

The DbHash interface is used by the Db.setHash method. This interface defines the database-specific hash function. The hash function must handle any key values used by the application (possibly including zero-length keys).

Parameters:

db - the enclosing database handle.

data - the byte string to be hashed.

len - the length of the byte string in bytes.

Returns:

The DbHash interface returns a hash value of type int.