org.lenskit.util.reflect

Class ClassQueries

java.lang.Object

org.lenskit.util.reflect.ClassQueries

public final class ClassQueries
extends java.lang.Object

Various utility function queries on classes.

Constructor Summary

Constructors

Constructor and Description
ClassQueries()

Method Summary

Modifier and Type	Method and Description
static boolean	isThreadSafe(java.lang.Class<?> cls) Query whether a class is marked as thread-safe.
static boolean	isThreadSafe(java.lang.Object obj) Query whether an object is thread-safe.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassQueries

public ClassQueries()

Method Detail

isThreadSafe

public static boolean isThreadSafe(@Nonnull
                                   java.lang.Class<?> cls)

Query whether a class is marked as thread-safe. A class can be marked as thread-safe through applying one of the following annotations:

• Shareable
• Immutable
• ThreadSafe

Note that the javax.concurrent annotations are not supported, as they do not have RUNTIME retention.

Parameters:

cls - The class.

Returns:

true if the class is marked as thread-safe.

isThreadSafe

public static boolean isThreadSafe(java.lang.Object obj)

Query whether an object is thread-safe. This first checks for the MaybeThreadSafe interface; if that is not present, then it checks the class using isThreadSafe(Class).

Parameters:

obj - The object.

Returns:

true if the object is marked as thread-safe. Null objects are trivially considered to be thread-safe.