Bug 500: Updated data APIs with new concepts.
[controller.git] / opendaylight / md-sal / sal-common-api / src / main / java / org / opendaylight / controller / md / sal / common / api / data / DataChangeListener.java
index 8787a3f..669baa8 100644 (file)
@@ -12,6 +12,12 @@ import java.util.EventListener;
 import org.opendaylight.yangtools.concepts.Path;
 
 public interface DataChangeListener<P extends Path<P>, D> extends EventListener {
-
+    /**
+     * Note that this method may be invoked from a shared thread pool, so
+     * implementations SHOULD NOT perform CPU-intensive operations and they
+     * definitely MUST NOT invoke any potentially blocking operations.
+     *
+     * @param change Data Change Event being delivered.
+     **/
     void onDataChanged(DataChangeEvent<P, D> change);
 }

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