Package org.apache.logging.log4j.util

Internal utility classes for the Log4j 2 API.

See: Description

Interface Summary

Interface	Description
BiConsumer<K,V>	An operation that accepts two input arguments and returns no result.
IndexedReadOnlyStringMap	An extension of ReadOnlyStringMap that imposes a total ordering on its keys.
IndexedStringMap	An extension of StringMap that imposes a total ordering on its keys.
MessageSupplier	Classes implementing this interface know how to supply Messages.
ReadOnlyStringMap	A read-only collection of String keys mapped to values of arbitrary type.
StringBuilderFormattable	Objects that implement this interface can be converted to text, ideally without allocating temporary objects.
StringMap	Exposes methods to add and remove key-value pairs to and from ReadOnlyStringMap.
Supplier<T>	Consider this class private. Classes implementing this interface know how to supply a value.
TriConsumer<K,V,S>	An operation that accepts three input arguments and returns no result.

Class Summary

Class	Description
Chars	Consider this class private.
Constants	Log4j API Constants.
EnglishEnums	Consider this class private.
LambdaUtil	Utility class for lambda support.
LoaderUtil	Consider this class private. Utility class for ClassLoaders.
LoaderUtil.ThreadContextClassLoaderGetter
LoaderUtil.UrlResource	URL and ClassLoader pair.
LowLevelLogUtil	PrintWriter-based logging utility for classes too low level to use StatusLogger.
PropertiesUtil	Consider this class private.
ProviderUtil	Consider this class private. Utility class for Log4j Providers.
ReflectionUtil	Consider this class private. Provides various methods to determine the caller class.
ReflectionUtil.PrivateSecurityManager
SortedArrayStringMap	Consider this class private. Array-based implementation of the ReadOnlyStringMap interface.
StringBuilders	Consider this class private.
Strings	Consider this class private.
Unbox	Utility for preventing primitive parameter values from being auto-boxed.
Unbox.State
Unbox.WebSafeState	State implementation that only puts JDK classes in ThreadLocals, so this is safe to be used from web applications.

Annotation Types Summary

Annotation Type	Description
PerformanceSensitive	Indicates that a particular annotated construct was written with certain performance constraints in mind that should be considered when modifying or testing.

Package org.apache.logging.log4j.util Description

Internal utility classes for the Log4j 2 API. Note that the use of any classes in this package is not supported. There are no guarantees for binary or logical compatibility in this package.