edu.rutgers.md.sqltools

Class Main

java.lang.Object

edu.rutgers.md.sqltools.Main

public class Main
extends Object

A very simple, stand-alone program that stores a new entity in the database and then performs a query to retrieve it.

Field Summary

Fields

Modifier and Type	Field and Description
static String	persistenceUnitName This name will be used to configure the EntityManagerFactory based on the corresponding name in the META-INF/persistence.xml file

Constructor Summary

Constructors

Constructor and Description
Main()

Method Summary

Modifier and Type	Method and Description
static javax.persistence.EntityManager	getEM() Creates a new EntityManager from the EntityManagerFactory.
static javax.persistence.EntityManagerFactory	getFactory() Initializes the EntityManagerFactory using the System properties.
static int	getMyPid() Finds the process id of the UNIX process for this application.
static void	memory() Reports memory use
static void	memory(String title) Reports memory use
static String	memoryInfo(String title, boolean doGc)

Methods inherited from class java.lang.Object

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

Field Detail

persistenceUnitName

public static final String persistenceUnitName

This name will be used to configure the EntityManagerFactory based on the corresponding name in the META-INF/persistence.xml file

See Also:

Constant Field Values

Constructor Detail

Main

public Main()

Method Detail

getMyPid

public static int getMyPid()

Finds the process id of the UNIX process for this application. FIXME: This obviously is non-portable outside of UNIX.

Returns:

PID, or -1 on failure

getFactory

public static javax.persistence.EntityManagerFactory getFactory()

Initializes the EntityManagerFactory using the System properties. The "icd" name will be used to configure based on the corresponding name in the META-INF/persistence.xml file

getEM

public static javax.persistence.EntityManager getEM()

Creates a new EntityManager from the EntityManagerFactory.

memory

public static void memory()

Reports memory use

memory

public static void memory(String title)

Reports memory use

memoryInfo

public static String memoryInfo(String title,
                                boolean doGc)