| Package | Description | 
|---|---|
| org.springframework.beans.factory.config | SPI interfaces and configuration-related convenience classes for bean factories. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | PreferencesPlaceholderConfigurerDeprecated. 
 as of 5.2, along with  PropertyPlaceholderConfigurer | 
| class  | PropertyPlaceholderConfigurerDeprecated. 
 as of 5.2; use  org.springframework.context.support.PropertySourcesPlaceholderConfigurerinstead which is more flexible through taking advantage of theEnvironmentandPropertySourcemechanisms. |