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DatabaseInterface.java
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73 lines (53 loc) · 1.4 KB
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import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class DatabaseInterface {
private Connection connection;
PreparedStatement statement;
// constructor, does nothing
public DatabaseInterface()
{
connection = null;
statement = null;
}
public Boolean connect()
{
Boolean success = true;
try {
@SuppressWarnings("unused")
PreparedStatement statement = null;
Class.forName("com.mysql.jdbc.Driver");
connection = DriverManager.getConnection("jdbc:mysql://localhost/biopeakdb", "root", "ELEPhant_792");
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
success = false;
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
success = false;
}
return (success);
}
// runQuery method: input: a query string, output a resultset
public ResultSet runQuery(String query) throws SQLException
{
ResultSet result;
statement = connection.prepareStatement(query);
result = statement.executeQuery();
return (result);
}
// disconnect method
public Boolean disconnect()
{
Boolean success = true;
try {
connection.close();
}catch (Exception e) {
success = false;
}
return (success);
}
}