Storage Engine

package org.apache.cassandra.db.engine;

import java.io.IOException; import java.sql.SQLException; import java.util.Map; import java.nio.ByteBuffer;

import org.apache.cassandra.db.ColumnFamily; import org.apache.cassandra.db.DecoratedKey;

public interface StorageEngine { /* * put cf in a row specified rowKey. * This method include insert, update and delete to a rowKey * / public int put(DecoratedKey key, ColumnFamily cf); / * get a column family specified rowKey * / public ColumnFamily get(DecoratedKey key); / * range query: from startWith to stopAt limit maxResults. * / public Map<ByteBuffer, ColumnFamily> getRangeSlice(DecoratedKey startWith, DecoratedKey stopAt, int maxResults); / * truncate table. * / public int truncate(); / * drop table. * / public int dropTable(); / * drop database. * */ public int dropDB(); }