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## org.springframework.beans.factory.config
Class DeprecatedBeanWarner

    java.lang.Object
      org.springframework.beans.factory.config.DeprecatedBeanWarner

All Implemented Interfaces:
  BeanFactoryPostProcessor

    public class DeprecatedBeanWarner

extends Object
implements BeanFactoryPostProcessor

Bean factory post processor that logs a warning for `@Deprecated` beans.

Since:
  3.0.3
Author:
  Arjen Poutsma

Field Summary
`protected Log` | `logger` Logger available to subclasses.

Constructor Summary
`DeprecatedBeanWarner()`

Method Summary
`protected boolean` | `isLogEnabled()` Determine whether the `logger` field is enabled.
`protected void` | `logDeprecatedBean(String beanName, BeanDefinition beanDefinition)` Logs a warning for a bean annotated with `@Deprecated`.
`void` | `postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)` Modify the application context's internal bean factory after its standard initialization.
`void` | `setLoggerName(String loggerName)` Set the name of the logger to use.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### logger

    protected transient Log logger

  Logger available to subclasses.

Constructor Detail

### DeprecatedBeanWarner

    public DeprecatedBeanWarner()

Method Detail

### setLoggerName

    public void setLoggerName(String loggerName)

  Set the name of the logger to use. The name will be passed to the underlying logger implementation through Commons Logging, getting interpreted as log category according to the logger's configuration.

  This can be specified to not log into the category of this warner class but rather into a specific named category.

  See Also:
    `LogFactory.getLog(String)`, `Logger.getLogger(String)`, `Logger.getLogger(String)`

### postProcessBeanFactory

    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
                                throws BeansException

  Description copied from interface: `BeanFactoryPostProcessor`
  Modify the application context's internal bean factory after its standard initialization. All bean definitions will have been loaded, but no beans will have been instantiated yet. This allows for overriding or adding properties even to eager-initializing beans.

  Specified by:
    `postProcessBeanFactory` in interface `BeanFactoryPostProcessor`
  Parameters:
    `beanFactory` - the bean factory used by the application context
  Throws:
    `BeansException` - in case of errors

### logDeprecatedBean

    protected void logDeprecatedBean(String beanName,
                                     BeanDefinition beanDefinition)

  Logs a warning for a bean annotated with `@Deprecated`.

  Parameters:
    `beanName` - the name of the deprecated bean
    `beanDefinition` - the definition of the deprecated bean

### isLogEnabled

    protected boolean isLogEnabled()

  Determine whether the `logger` field is enabled.

  Default is `true` when the "warn" level is enabled. Subclasses can override this to change the level under which logging occurs.

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