| 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).
Property values can be converted after reading them in, through overriding
the convertPropertyValue method. For example, encrypted values
can be detected and decrypted accordingly before processing them.
author:
Juergen Hoeller
author:
Rod Johnson
since:
12.03.2003
See Also: PropertyOverrideConfigurer.convertPropertyValue
See Also: PropertyPlaceholderConfigurer | 