Package com.yahoo.gsheetjdbc.loader

Class DatabaseLoader

java.lang.Object

com.yahoo.gsheetjdbc.loader.DatabaseLoader

All Implemented Interfaces:

Closeable, AutoCloseable

public class DatabaseLoader
extends Object
implements Closeable

Loads data into an H2 database.

Constructor Summary

Constructors

Constructor	Description
DatabaseLoader(String dbName)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	close()
Connection	getConnection()	Fetches a JDBC connection to the underlying H2 database.
void	refreshTempTable(Table table, List<List<Object>> records)	Loads a temporary table with a set of newly fetched records.
void	swapTables(Table table)	Swaps a newly loaded temporary table with the existing primary table.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DatabaseLoader

public DatabaseLoader(String dbName)

Constructor.

Parameters:

dbName - The name of the database to create for this loader.

Method Detail

getConnection

public Connection getConnection()
                         throws SQLException

Fetches a JDBC connection to the underlying H2 database.

Returns:

a JDBC connection

Throws:

SQLException - on error

refreshTempTable

public void refreshTempTable(Table table,
                             List<List<Object>> records)
                      throws SQLException

Loads a temporary table with a set of newly fetched records.

Parameters:

table - The table to reload.

records - The records to load in.

Throws:

SQLException - If an error occurs.

swapTables

public void swapTables(Table table)
                throws SQLException

Swaps a newly loaded temporary table with the existing primary table.

Parameters:

table - The table to swap.

Throws:

SQLException - If an error occurs.

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException