hu.juranyi.zsolt.pubsearch.data

Class Connection

java.lang.Object

hu.juranyi.zsolt.pubsearch.data.Connection

public class Connection
extends java.lang.Object

This class provides access to the MySQL database through JPA for the crawler.

Field Summary

Fields

Modifier and Type	Field and Description
static int	JPA_ERROR
static int	SQL_ERROR

Constructor Summary

Constructors

Constructor and Description
Connection()

Method Summary

Methods

Modifier and Type	Method and Description
static javax.persistence.EntityManager	getEntityManager()
static int	getLastError() Tells the type of the last occurred error
static boolean	tryInit() Tries to initialize connection.

Methods inherited from class java.lang.Object

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

Field Detail

SQL_ERROR

public static final int SQL_ERROR

See Also:

Constant Field Values

JPA_ERROR

public static final int JPA_ERROR

See Also:

Constant Field Values

Constructor Detail

Connection

public Connection()

Method Detail

getEntityManager

public static javax.persistence.EntityManager getEntityManager()

getLastError

public static int getLastError()

Tells the type of the last occurred error

Returns:

0 if there was no error, SQL_ERROR if there was an SQLException, JPA_ERROR otherwise.

tryInit

public static boolean tryInit()

Tries to initialize connection. Calls init(), then stores the error code.

Returns:

False on error, true on success.