package liquibase.executor;

 import liquibase.database.Database;

 import liquibase.exception.DatabaseException;

 import liquibase.sql.visitor.SqlVisitor;

 import liquibase.statement.CallableSqlStatement;

 import liquibase.statement.SqlStatement;

 import java.util.List;

 import java.util.Map;

 public interface Executor {

     void setDatabase(Database database);

     /** Read methods */

     Object queryForObject(SqlStatement sql, Class requiredType) throws DatabaseException;

     Object queryForObject(SqlStatement sql, Class requiredType, List<SqlVisitor> sqlVisitors) throws DatabaseException;

     long queryForLong(SqlStatement sql) throws DatabaseException;

     long queryForLong(SqlStatement sql, List<SqlVisitor> sqlVisitors) throws DatabaseException;

     int queryForInt(SqlStatement sql) throws DatabaseException;

     int queryForInt(SqlStatement sql, List<SqlVisitor> sqlVisitors) throws DatabaseException;

     List queryForList(SqlStatement sql, Class elementType) throws DatabaseException;

     List queryForList(SqlStatement sql, Class elementType, List<SqlVisitor> sqlVisitors) throws DatabaseException;

     List<Map> queryForList(SqlStatement sql) throws DatabaseException;

     List<Map> queryForList(SqlStatement sql, List<SqlVisitor> sqlVisitors) throws DatabaseException;

     /** Write methods */

     void execute(SqlStatement sql) throws DatabaseException;

     void execute(SqlStatement sql, List<SqlVisitor> sqlVisitors) throws DatabaseException;

     int update(SqlStatement sql) throws DatabaseException;

     int update(SqlStatement sql, List<SqlVisitor> sqlVisitors) throws DatabaseException;

     Map call(CallableSqlStatement csc, List declaredParameters, List<SqlVisitor> sqlVisitors) throws DatabaseException;

     /**

      * Adds a comment to the database. Currently does nothing but is over-ridden in the output JDBC template

      * 

      * @param message

      * @throws liquibase.exception.DatabaseException

      */

     void comment(String message) throws DatabaseException;

     boolean updatesDatabase();

 }