public class ClassInfo extends Object
Handle for all information we want to keep about the class
This class handles caching internally and its advisable to not store
references directly to objects of this class. The static factory method
ClassInfo.getClassInfo should be used to retrieve an instance
from the cache. Internally the Class
associated with a ClassInfo
instance is kept as WeakReference, so it not safe to reference
and instance without the Class being either strongly or softly reachable.
Modifiers | Name | Description |
---|---|---|
interface |
ClassInfo.ClassInfoAction |
Modifiers | Name | Description |
---|---|---|
int |
hash |
Returns the MetaClass
for the Class
associated with this ClassInfo
.
If no MetaClass
exists one will be created.
It is not safe to call this method without a Class
associated with this ClassInfo
.
It is advisable to aways retrieve a ClassInfo instance from the cache by using the static
factory method ClassInfo.getClassInfo to ensure the referenced Class is
strongly reachable.
MetaClass
instance Returns the Class
associated with this ClassInfo
.
This method can return null
if the Class
is no longer reachable
through any strong or soft references. A non-null return value indicates that this
ClassInfo
is valid.
Class
associated with this ClassInfo
, else null
Removes a ClassInfo
from the cache.
This is useful in cases where the Class is parsed from a script, such as when
using GroovyClassLoader#parseClass, and is executed for its result but the Class
is not retained or cached. Removing the ClassInfo
associated with the Class
will make the Class and its ClassLoader eligible for garbage collection sooner that
it would otherwise.
cls
- the Class associated with the ClassInfo to remove
from cache