Package com.alibaba.ttl

Class TtlUnwrap

java.lang.Object

com.alibaba.ttl.TtlUnwrap

public class TtlUnwrap
extends Object

Util methods for TTL Wrapper: unwrap TTL Wrapper and check TTL Wrapper.

Note: all methods is null-safe, when input parameter is null, return null.

Implementation Note: The util methods in this class should have been inside TtlWrappers.
But for Java 6 support, it's required splitting the util methods which involved Java 8 from TtlWrappers. In order to avoid loading Java 8 class (eg: Consumer, Supplier), when invoking any methods of TtlWrappers.

Since:

2.11.4

Author:

Jerry Lee (oldratlee at gmail dot com)

See Also:

TtlWrappers, TtlWrapper, TtlRunnable, TtlCallable

Method Summary

Modifier and Type	Method	Description
static <T> boolean	isWrapper(T obj)	check the input object is a TtlWrapper or not.
static <T> T	unwrap(T obj)	Generic unwrap method, unwrap TtlWrapper to the original/underneath one.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

unwrap

@Nullable
public static <T> T unwrap(@Nullable
                           T obj)

Generic unwrap method, unwrap TtlWrapper to the original/underneath one.

this method is null-safe, when input BiFunction parameter is null, return null; if input parameter is not a TtlWrapper just return input.

so unwrap will always return the same input object.

Since:

2.11.4

See Also:

TtlWrappers.wrap(java.util.function.Supplier), TtlWrappers.wrap(java.util.function.Consumer), TtlWrappers.wrap(java.util.function.BiConsumer), TtlWrappers.wrap(java.util.function.Function), TtlWrappers.wrap(java.util.function.BiFunction), TtlRunnable.unwrap(Runnable), TtlCallable.unwrap(Callable), TtlExecutors.unwrap(java.util.concurrent.Executor), TtlExecutors.unwrap(java.util.concurrent.ThreadFactory), TtlForkJoinPoolHelper.unwrap(java.util.concurrent.ForkJoinPool.ForkJoinWorkerThreadFactory)

isWrapper

public static <T> boolean isWrapper(@Nullable
                                    T obj)

check the input object is a TtlWrapper or not.

Since:

2.11.4