Package de.ubs.xdm3.batch.modification

Class MappingTableUtils

java.lang.Object

de.ubs.xdm3.batch.modification.ModificationUtils

de.ubs.xdm3.batch.modification.MappingTableUtils

All Implemented Interfaces:

Closeable, AutoCloseable

public class MappingTableUtils
extends ModificationUtils

This class offers functions to persist data in a database. It allows to store and retrieve data based on a key. The data can be stored in different tables. Each table can have a different key and data portion. The get and put methods are used to retrieve and put data into the respective table.
The first put operation to a specified table will internally create the table based on the provided data. This means that the key and data of the put is used to create a table in the background.

Field Summary

Fields inherited from class de.ubs.xdm3.batch.modification.ModificationUtils

AND, batchExecutionSize, password, url, user, WHERE_KEY

Constructor Summary

Constructors

Constructor	Description
MappingTableUtils()	Constructs a new MappingTableUtils object that uses the xdm database.
MappingTableUtils(String url, String user, String password)	Constructs a new MappingTableUtils object that uses a database with the provided properties.
MappingTableUtils(Connection connection)	Constructs a new MappingTableUtils object that uses the database with the specified connection.

Method Summary

Methods inherited from class de.ubs.xdm3.batch.modification.ModificationUtils

close, count, count, drop, executeStatement, get, getNextValueFor, hasKey, merge, merge, put, put, setBatchExecutionSize, tableExists

Methods inherited from class java.lang.Object

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

Constructor Details

MappingTableUtils

public MappingTableUtils()

Constructs a new MappingTableUtils object that uses the xdm database. The data will be stored in the xdm database.

MappingTableUtils

public MappingTableUtils(String url,
 String user,
 String password)

Constructs a new MappingTableUtils object that uses a database with the provided properties. The data will be stored at the location that has been specified in the URL.

Parameters:

url - A jdbc url of a database. The url must start with jdbc:.

user - A user to access the database.

password - A password to access the database.

MappingTableUtils

public MappingTableUtils(Connection connection)
                  throws SQLException

Constructs a new MappingTableUtils object that uses the database with the specified connection.

Parameters:

connection - A connection to an external database.

Throws:

SQLException