X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-common-api%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fmd%2Fsal%2Fcommon%2Fapi%2Fdata%2FDataChangeListener.java;h=669baa8d9e96a6601bfe7cbe49cb99d2ffb00233;hp=8787a3fe8d82de85bc7e064177501e017d041cca;hb=9fda938ef6dc037ef1c5a9fbed25469d4a532150;hpb=9b07bd85d10b509d29b70b1e43b1919c5b4bcbb2

diff --git a/opendaylight/md-sal/sal-common-api/src/main/java/org/opendaylight/controller/md/sal/common/api/data/DataChangeListener.java b/opendaylight/md-sal/sal-common-api/src/main/java/org/opendaylight/controller/md/sal/common/api/data/DataChangeListener.java
index 8787a3fe8d..669baa8d9e 100644
--- a/opendaylight/md-sal/sal-common-api/src/main/java/org/opendaylight/controller/md/sal/common/api/data/DataChangeListener.java
+++ b/opendaylight/md-sal/sal-common-api/src/main/java/org/opendaylight/controller/md/sal/common/api/data/DataChangeListener.java
@@ -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);
 }