org.j2ee.dao
Class DAOFactory

java.lang.Object
  |
  +--org.j2ee.dao.DAOFactory

Direct Known Subclasses:

DefaultDAOFactoryImpl

public abstract class DAOFactory

extends java.lang.Object

Initial Factory for the DAO Pattern It will locate daofactory.properties file in four differente way: First: Test for the system propertie: org.j2ee.dao.factory and try to open it as File Usage: java -Dorg.j2ee.dao.factory=file:/tmp/daofactory.properties Second: Test for the JNDI name: java:comp/env/daoFactoryProperty and try to open it as ResourceBoundle class loader spec Usage (Define it in your ejb-jar.xml): daoFactoryProperty java.lang.String my.pkg.daofactory Third: Test in the root classpath and try to load it using Resource Boundle semantic Usage: put daofactory.properties in the root classpath of your .jar Fourth: Test in the DAO classpath (org.j2ee.dao) and try to load it using Resource Boundle semantic Usage: put daofactory.properties in org/j2ee/dao directory of your .jar Based on an example of book Code Notes for J2EE, Edited by GREGORY BRILL, e-ISBN 0-679-64727-9 Last modified $Date: 2004/05/18 10:50:12 $

Version:

$Revision: 1.1.1.1 $

Author:

jvlio (jvlio@users.sourceforge.net)

See Also:

ResourceBundle

Field Summary

static java.lang.String	ACTION_CLASS_SUFFIX
static java.lang.String	ACTIONS_ENTRY
static java.lang.String	DEFAULT_FACTORY_ENTRY
static java.lang.String	FACTORIES_ENTRY
static java.lang.String	FACTORY_CLASS_SUFFIX
protected static java.util.Map	factoryMap
static java.lang.String	GROUPS_ENTRY
protected static java.util.ResourceBundle	rb

Constructor Summary

DAOFactory()

Method Summary

abstract org.j2ee.dao.DAOAction	getAction(java.lang.String action_name)
static org.j2ee.dao.DAOFactory	getDAOFactory() Returns a default factory
static org.j2ee.dao.DAOFactory	getDAOFactory(java.lang.String whichFactory) Search in factories Map if find a key named "whichFactory", if find is succefully then compare the object instance, if is a string, then load class named in this way, otherwise the object is a Factory.
abstract org.j2ee.dao.DAOActionProcessor	getProcessor()
abstract org.j2ee.dao.DAOActionProcessor	getProcessor(java.lang.String processor_name)
static java.util.ResourceBundle	getProperties()
protected static java.lang.String	getResourceString(java.util.ResourceBundle resources, java.lang.String key)
protected abstract void	inizialize(java.lang.String factoryName)
protected static java.lang.String[]	tokenize(java.lang.String input) Take the given string and chop it up into a series of strings on whitespace boundries.

Methods inherited from class java.lang.Object

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

Field Detail

FACTORIES_ENTRY

public static final java.lang.String FACTORIES_ENTRY

See Also:

Constant Field Values

DEFAULT_FACTORY_ENTRY

public static final java.lang.String DEFAULT_FACTORY_ENTRY

See Also:

Constant Field Values

FACTORY_CLASS_SUFFIX

public static final java.lang.String FACTORY_CLASS_SUFFIX

See Also:

Constant Field Values

ACTIONS_ENTRY

public static final java.lang.String ACTIONS_ENTRY

See Also:

Constant Field Values

GROUPS_ENTRY

public static final java.lang.String GROUPS_ENTRY

See Also:

Constant Field Values

ACTION_CLASS_SUFFIX

public static final java.lang.String ACTION_CLASS_SUFFIX

See Also:

Constant Field Values

factoryMap

protected static java.util.Map factoryMap

rb

protected static java.util.ResourceBundle rb

Constructor Detail

DAOFactory

public DAOFactory()

Method Detail

inizialize

protected abstract void inizialize(java.lang.String factoryName)

getDAOFactory

public static final org.j2ee.dao.DAOFactory getDAOFactory()

Returns a default factory

getDAOFactory

public static final org.j2ee.dao.DAOFactory getDAOFactory(java.lang.String whichFactory)

Search in factories Map if find a key named "whichFactory", if find is succefully then compare the object instance, if is a string, then load class named in this way, otherwise the object is a Factory. If the key not found, then i guest is a class name and load this Factory class.

getProperties

public static java.util.ResourceBundle getProperties()

getResourceString

protected static java.lang.String getResourceString(java.util.ResourceBundle resources,
                                                    java.lang.String key)

tokenize

protected static java.lang.String[] tokenize(java.lang.String input)

Take the given string and chop it up into a series of strings on whitespace boundries. This is useful for trying to get an array of strings out of the resource file.

getProcessor

public abstract org.j2ee.dao.DAOActionProcessor getProcessor()

getProcessor

public abstract org.j2ee.dao.DAOActionProcessor getProcessor(java.lang.String processor_name)

getAction

public abstract org.j2ee.dao.DAOAction getAction(java.lang.String action_name)