Author: oheger
Date: Fri Jul 11 20:24:09 2014
New Revision: 1609804
URL: http://svn.apache.org/r1609804
Log:
Extended EventListenerList to query registration information.
A method was added which returns an unmodifiable list with event listener
registration information.
Modified:
commons/proper/configuration/trunk/src/main/java/org/apache/commons/configuration/event/EventListenerList.java
commons/proper/configuration/trunk/src/test/java/org/apache/commons/configuration/event/TestEventListenerList.java
Modified:
commons/proper/configuration/trunk/src/main/java/org/apache/commons/configuration/event/EventListenerList.java
URL:
http://svn.apache.org/viewvc/commons/proper/configuration/trunk/src/main/java/org/apache/commons/configuration/event/EventListenerList.java?rev=1609804&r1=1609803&r2=1609804&view=diff
==============================================================================
---
commons/proper/configuration/trunk/src/main/java/org/apache/commons/configuration/event/EventListenerList.java
(original)
+++
commons/proper/configuration/trunk/src/main/java/org/apache/commons/configuration/event/EventListenerList.java
Fri Jul 11 20:24:09 2014
@@ -16,6 +16,7 @@
*/
package org.apache.commons.configuration.event;
+import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
@@ -194,6 +195,17 @@ public class EventListenerList
}
/**
+ * Returns an (unmodifiable) list with registration information about all
+ * event listeners registered at this object.
+ *
+ * @return a list with event listener registration information
+ */
+ public List<EventListenerRegistrationData<?>> getRegistrations()
+ {
+ return Collections.unmodifiableList(listeners);
+ }
+
+ /**
* Helper method for calling an event listener with an event. We have to
* operate on raw types to make this code compile. However, this is safe
* because of the way the listeners have been registered and associated
with
Modified:
commons/proper/configuration/trunk/src/test/java/org/apache/commons/configuration/event/TestEventListenerList.java
URL:
http://svn.apache.org/viewvc/commons/proper/configuration/trunk/src/test/java/org/apache/commons/configuration/event/TestEventListenerList.java?rev=1609804&r1=1609803&r2=1609804&view=diff
==============================================================================
---
commons/proper/configuration/trunk/src/test/java/org/apache/commons/configuration/event/TestEventListenerList.java
(original)
+++
commons/proper/configuration/trunk/src/test/java/org/apache/commons/configuration/event/TestEventListenerList.java
Fri Jul 11 20:24:09 2014
@@ -428,6 +428,39 @@ public class TestEventListenerList
}
/**
+ * Tests whether all event listener registrations can be queried.
+ */
+ @Test
+ public void testGetRegistrations()
+ {
+ EventListenerRegistrationData<EventSub1> reg1 =
+ new EventListenerRegistrationData<EventSub1>(typeSub1,
+ new ListenerTestImpl());
+ EventListenerRegistrationData<EventSub2> reg2 =
+ new EventListenerRegistrationData<EventSub2>(typeSub2,
+ new ListenerTestImpl());
+ list.addEventListener(reg1);
+ list.addEventListener(reg2);
+
+ List<EventListenerRegistrationData<?>> registrations =
+ list.getRegistrations();
+ assertEquals("Wrong number of registrations", 2, registrations.size());
+ assertTrue("Registration 1 not found", registrations.contains(reg1));
+ assertTrue("Registration 2 not found", registrations.contains(reg2));
+ }
+
+ /**
+ * Tests that the list with registration information cannot be modified.
+ */
+ @Test(expected = UnsupportedOperationException.class)
+ public void testGetRegistrationsModify()
+ {
+ list.getRegistrations().add(
+ new EventListenerRegistrationData<EventBase>(typeBase,
+ new ListenerTestImpl()));
+ }
+
+ /**
* Test event class. For testing purposes, a small hierarchy of test event
* class is created. This way it can be checked whether event types are
* correctly evaluated and take the event hierarchy into account.
