WrapUtils (Starjava UTIL API)

java.lang.Object

uk.ac.starlink.util.WrapUtils

public class WrapUtils extends Object

Utilities relating to the Wrapper class.

Since:: 3 Apr 2008
Author:: Mark Taylor

Method Summary

Modifier and Type

Method

Description

static Object

getWrapped(Object obj)

Returns the object on which a given object is based.

static Object

getWrapped(Object obj, Class<?> clazz)

Attempts to return an object of a given class on which a given object is based.

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details
- getWrapped
  
  public static Object getWrapped(Object obj)
  
  Returns the object on which a given object is based. If obj is a Wrapper, it is unwrapped as far as possible and the base object is returned. Otherwise obj itself is returned.
  
  Parameters:
  
  obj - test object
  
  Returns:
  
  ultimate base object of obj
- getWrapped
  
  public static Object getWrapped(Object obj, Class<?> clazz)
  
  Attempts to return an object of a given class on which a given object is based. An object is unwrapped (see Wrapper.getBase()) until an object of class clazz is found, at which point it is returned. If no clazz object can be found, null is returned.
  
  Parameters:
  
  obj - test object
  
  Returns:
  
  object within the wrapping hierarchy of class clazz, or null