ca.cbc.sportwire.servlet.data
Class BeanFactory

java.lang.Object
  |
  +--ca.cbc.sportwire.servlet.data.BeanFactory

All Implemented Interfaces:

SportPageProperties

public class BeanFactory

extends java.lang.Object

implements SportPageProperties

BeanFactory.java: create an instance of the specified class first by trying a getInstance(context) or getInstance(ExtendedProperties) method, then getInstance() and finally try for a null constructor. This can be used to dynamically load any JavaBean from within a template or page handler.

Created: Mon Jan 7 14:58:54 2002

 $Log: BeanFactory.java,v $
 Revision 1.4  2002/02/10 05:45:43  garym
 implement $xml.doms(perlregex)

 Revision 1.3  2002/01/29 21:08:00  garym
 beans now loaded after topic context is built

 Revision 1.2  2002/01/24 19:50:20  garym
 Major restructuring of beans and pagehandlers

 Revision 1.1  2002/01/09 04:28:59  garym
 Added test unit stubs and new News support


 

Version:

$Id: BeanFactory.java,v 1.4 2002/02/10 05:45:43 garym Exp $

Author:

Gary Lawrence Murphy

Field Summary

private static BeanFactory	_instance
(package private) static org.apache.log4j.Category	cat

Fields inherited from interface ca.cbc.sportwire.servlet.data.SportPageProperties

BEAN_SUFFIX, BEANFACTORY_VAR, CONTEXT_VAR, DATE_VAR, DEFAULT_EXTS, DEFAULT_INDEXES, DEFAULT_PAGE_SUFFIX, DEFAULT_SAX_DRIVER_CLASS, DEFAULT_TIMEZONE, DEFAULT_TOPIC, DOM_VAR, ERROR_TEMPLATE_VAR, EXCEPTION_VAR, EXTENSIONS_VAR, FALSE, GLOBAL_VAR, HOME_PROPERTY, INCLUDE_EXTS_PROPERTY, INCLUDE_VAR, INDEX_INDICATOR_VAR, INDEX_TEMPLATE_VAR, LAYOUT_TEMPLATE_VAR, MACRO_LIB_PROPERTY, MISSING_TEMPLATE_VAR, OUTPUT_VAR, PAGE_EXPIRE, PAGE_TEMPLATE_VAR, PANIC_404_PAGE, PANIC_404_PROPERTY, PANIC_500_PAGE, PANIC_500_PROPERTY, PARAM_PARSER_VAR, PATH_VAR, REQUEST_VAR, RESPONSE_VAR, SAX_CLASS_PROPERTY, SERVLET_DEBUG, SERVLET_LOGCONF_PROPERTY, SQL_SUFFIX, TEMPLATE_PATHS_PROPERTY, TIMEZONE_PROPERTY, TRUE, URI_VAR, VELOCITY_LOGFILE_DEFAULT, VELOCITY_LOGFILE_PROPERTY, XML_EXTS, XML_EXTS_PROPERTY, XML_PATHS_PROPERTY, XML_SUFFIX, XSL_EXTS, XSL_EXTS_PROPERTY, XSL_PATHS_PROPERTY

Constructor Summary

private

BeanFactory()

Method Summary

static java.lang.Object	getBean(org.apache.velocity.context.Context context, java.lang.String classname) getBean: For SportPage beans that depend on the page context, attempts a getInstance(Context) before falling back to the no-context case.
static java.lang.Object	getBean(org.apache.commons.collections.ExtendedProperties sc, java.lang.String classname) getBean: For SportPage beans that depend only on the system config properties, attempts a getInstance(ExtendedProperties) before falling back to the no-context case.
static java.lang.Object	getBean(java.lang.String classname) getBean: no context method for non-SportPage beans, tries for a getInstance() and the a null constructor.
static BeanFactory	getInstance(org.apache.commons.collections.ExtendedProperties sc) getInstance: BeanFactory can be used as class methods, or used within a Velocity template as a singleton variable value (ie $javabeans)

Methods inherited from class java.lang.Object

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

Field Detail

cat

static org.apache.log4j.Category cat

_instance

private static BeanFactory _instance

Constructor Detail

BeanFactory

private BeanFactory()

Method Detail

getInstance

public static BeanFactory getInstance(org.apache.commons.collections.ExtendedProperties sc)

getInstance: BeanFactory can be used as class methods, or used within a Velocity template as a singleton variable value (ie $javabeans)

Parameters:

sc - an ExtendedProperties value

Returns:

a BeanFactory value

getBean

public static java.lang.Object getBean(org.apache.velocity.context.Context context,
                                       java.lang.String classname)
                                throws java.lang.NoSuchMethodException,
                                       java.lang.ClassNotFoundException,
                                       java.lang.IllegalAccessException,
                                       java.lang.reflect.InvocationTargetException,
                                       java.lang.InstantiationException

getBean: For SportPage beans that depend on the page context, attempts a getInstance(Context) before falling back to the no-context case.

Parameters:

context - a Context value

classname - a String value

Returns:

an Object value

Throws:

java.lang.NoSuchMethodException - if an error occurs

java.lang.ClassNotFoundException - if an error occurs

java.lang.IllegalAccessException - if an error occurs

java.lang.reflect.InvocationTargetException - if an error occurs

java.lang.InstantiationException - if an error occurs

getBean

public static java.lang.Object getBean(org.apache.commons.collections.ExtendedProperties sc,
                                       java.lang.String classname)
                                throws java.lang.NoSuchMethodException,
                                       java.lang.ClassNotFoundException,
                                       java.lang.IllegalAccessException,
                                       java.lang.reflect.InvocationTargetException,
                                       java.lang.InstantiationException

getBean: For SportPage beans that depend only on the system config properties, attempts a getInstance(ExtendedProperties) before falling back to the no-context case.

Parameters:

sc - an ExtendedProperties value

classname - a String value

Returns:

an Object value

Throws:

java.lang.NoSuchMethodException - if an error occurs

java.lang.ClassNotFoundException - if an error occurs

java.lang.IllegalAccessException - if an error occurs

java.lang.reflect.InvocationTargetException - if an error occurs

java.lang.InstantiationException - if an error occurs

getBean

public static java.lang.Object getBean(java.lang.String classname)
                                throws java.lang.NoSuchMethodException,
                                       java.lang.ClassNotFoundException,
                                       java.lang.IllegalAccessException,
                                       java.lang.reflect.InvocationTargetException,
                                       java.lang.InstantiationException

getBean: no context method for non-SportPage beans, tries for a getInstance() and the a null constructor.

Parameters:

classname - a String value

Returns:

an Object value

Throws:

java.lang.NoSuchMethodException - if an error occurs

java.lang.ClassNotFoundException - if an error occurs

java.lang.IllegalAccessException - if an error occurs

java.lang.reflect.InvocationTargetException - if an error occurs

java.lang.InstantiationException - if an error occurs