org.springframework.beans.factory.config
Class PropertyOverrideConfigurer

java.lang.Object
  extended byorg.springframework.beans.factory.config.PropertyResourceConfigurer
      extended byorg.springframework.beans.factory.config.PropertyOverrideConfigurer
All Implemented Interfaces:
BeanFactoryPostProcessor, Ordered

public class PropertyOverrideConfigurer
extends PropertyResourceConfigurer

A property resource configurer that overrides bean property values in an application context definition. It pushes values from a properties file into bean definitions.

Configuration lines are expected to be of the following form:

  beanName.property=value

Example properties file:

  dataSource.driverClassName=com.mysql.jdbc.Driver
  dataSource.url=jdbc:mysql:mydb

In contrast to PropertyPlaceholderConfigurer, the original definition can have default values or no values at all for such bean properties. If an overriding properties file does not have an entry for a certain bean property, the default context definition is used.

Note that the context definition is not aware of being overridden; so this is not immediately obvious when looking at the XML definition file.

In case of multiple PropertyOverrideConfigurers that define different values for the same bean property, the last one will win (due to the overriding mechanism).

Since:
12.03.2003
Version:
$Id: PropertyOverrideConfigurer.java,v 1.5 2004/03/19 17:45:35 jhoeller Exp $
Author:
Juergen Hoeller
See Also:
PropertyPlaceholderConfigurer

Field Summary
 
Fields inherited from class org.springframework.beans.factory.config.PropertyResourceConfigurer
logger
 
Constructor Summary
PropertyOverrideConfigurer()
           
 
Method Summary
protected  void processKey(ConfigurableListableBeanFactory factory, java.lang.String key, java.lang.String value)
          Process the given key as 'beanName.property' entry.
protected  void processProperties(ConfigurableListableBeanFactory beanFactory, java.util.Properties props)
          Apply the given Properties to the bean factory.
 
Methods inherited from class org.springframework.beans.factory.config.PropertyResourceConfigurer
getOrder, postProcessBeanFactory, setIgnoreResourceNotFound, setLocation, setLocations, setOrder, setProperties
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PropertyOverrideConfigurer

public PropertyOverrideConfigurer()
Method Detail

processProperties

protected void processProperties(ConfigurableListableBeanFactory beanFactory,
                                 java.util.Properties props)
                          throws BeansException
Description copied from class: PropertyResourceConfigurer
Apply the given Properties to the bean factory.

Specified by:
processProperties in class PropertyResourceConfigurer
Parameters:
beanFactory - the bean factory used by the application context
props - the Properties to apply
Throws:
BeansException - in case of errors

processKey

protected void processKey(ConfigurableListableBeanFactory factory,
                          java.lang.String key,
                          java.lang.String value)
                   throws BeansException
Process the given key as 'beanName.property' entry.

Throws:
BeansException


Copyright (C) 2003-2004 The Spring Framework Project.