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Diffstat (limited to 'java/beans/beancontext/BeanContextServicesSupport.java')
| -rw-r--r-- | java/beans/beancontext/BeanContextServicesSupport.java | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/java/beans/beancontext/BeanContextServicesSupport.java b/java/beans/beancontext/BeanContextServicesSupport.java index 035a3b25e..ce09b86cc 100644 --- a/java/beans/beancontext/BeanContextServicesSupport.java +++ b/java/beans/beancontext/BeanContextServicesSupport.java @@ -609,11 +609,22 @@ public class BeanContextServicesSupport return (BeanContextServices) beanContextChildPeer; } + /** + * Returns <code>child</code> as an instance of + * {@link BeanContextServicesListener}, or <code>null</code> if + * <code>child</code> does not implement that interface. + * + * @param child the child (<code>null</code> permitted). + * + * @return The child cast to {@link BeanContextServicesListener}. + */ protected static final BeanContextServicesListener - getChildBeanContextServicesListener (Object child) - throws NotImplementedException + getChildBeanContextServicesListener(Object child) { - throw new Error ("Not implemented"); + if (child instanceof BeanContextServicesListener) + return (BeanContextServicesListener) child; + else + return null; } /** |
