Package com.alibaba.ttl

Class TtlUnwrap

java.lang.Object

com.alibaba.ttl.TtlUnwrap

public final class TtlUnwrap
extends Object

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

Note:
all methods are 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:

• TtlRunnable
• TtlCallable
• TtlExecutors
• TtlForkJoinPoolHelper
• TtlWrappers

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 Details

unwrap

@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
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 parameter is null, return null; if input parameter is not a TtlWrapper just return input.

Since:

2.11.4

See Also:

• TtlRunnable.unwrap(Runnable)
• TtlCallable.unwrap(java.util.concurrent.Callable)
• TtlExecutors.unwrap(java.util.concurrent.Executor)
• TtlExecutors.unwrap(java.util.concurrent.ThreadFactory)
• TtlExecutors.unwrap(java.util.Comparator)
• TtlForkJoinPoolHelper.unwrap(java.util.concurrent.ForkJoinPool.ForkJoinWorkerThreadFactory)
• TtlWrappers.wrapSupplier(java.util.function.Supplier)
• TtlWrappers.wrapConsumer(java.util.function.Consumer)
• TtlWrappers.wrapBiConsumer(java.util.function.BiConsumer)
• TtlWrappers.wrapFunction(java.util.function.Function)
• TtlWrappers.wrapBiFunction(java.util.function.BiFunction)
• isWrapper(Object)

isWrapper

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

check the input object is a TtlWrapper or not.

Since:

2.11.4

See Also:

• unwrap(Object)