AsyncQueueFullPolicyFactory (Apache Log4j 2 2.12.4 API)

java.lang.Object
- org.apache.logging.log4j.core.async.AsyncQueueFullPolicyFactory

```
public class AsyncQueueFullPolicyFactory
extends java.lang.Object
```
Creates AsyncQueueFullPolicy instances based on user-specified system properties. The AsyncQueueFullPolicy created by this factory is used in AsyncLogger, AsyncLoggerConfig and AsyncAppender to control if events are logged in the current thread, the background thread, or discarded.
Property "log4j2.AsyncQueueFullPolicy" controls the routing behaviour. If this property is not specified or has value "Default", this factory creates DefaultAsyncQueueFullPolicy objects.

If this property has value "Discard", this factory creates DiscardingAsyncQueueFullPolicy objects. By default, this router discards events of level INFO, DEBUG and TRACE if the queue is full. This can be adjusted with property "log4j2.DiscardThreshold" (name of the level at which to start discarding).

For any other value, this factory interprets the value as the fully qualified name of a class implementing the AsyncQueueFullPolicy interface. The class must have a default constructor.

Since:

2.6

Constructor Summary

Constructors
Constructor Description

AsyncQueueFullPolicyFactory()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static AsyncQueueFullPolicy`	`create()`	Creates and returns `AsyncQueueFullPolicy` instances based on user-specified system properties.

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

- Constructor Detail
  - AsyncQueueFullPolicyFactory
```
public AsyncQueueFullPolicyFactory()
```
- Method Detail
  - create
```
public static AsyncQueueFullPolicy create()
```
    Creates and returns AsyncQueueFullPolicy instances based on user-specified system properties.
    Property "log4j2.AsyncQueueFullPolicy" controls the routing behaviour. If this property is not specified or has value "Default", this method returns DefaultAsyncQueueFullPolicy objects.
    
    If this property has value "Discard", this method returns DiscardingAsyncQueueFullPolicy objects.
    
    For any other value, this method interprets the value as the fully qualified name of a class implementing the AsyncQueueFullPolicy interface. The class must have a default constructor.
    
    Returns:
    
    a new AsyncQueueFullPolicy