Tomas Jelinek has submitted this change and it was merged. Change subject: webadmin: introduce NullableFrontendActionAsyncCallback ...................................................................... webadmin: introduce NullableFrontendActionAsyncCallback The methods Frontend#RunAction expect to receive an instance of IFrontendActionAsyncCallback. but there are multiple places where the result of the action isn't interesting. in those cases an instance of empty IFrontendActionAsyncCallback is created and passed to those methods. This patch introduce Frontend#NULLABLE_ASYNC_CALLBACK which is an instance of Frontend#NullableFrontendActionAsyncCallback that we can passe to Frontend#RunAction methods instead. Using NULLABLE_ASYNC_CALLBACK instead of creating new empty implementation each time is better because: 1. the code is more readable as each creation of empty implementation of the callback interface is composed on several lines in the code 2. the code is more efficient as we create less objects Change-Id: Ic0cf37a9f4ffb973a3791323596af6d97c7365cb Signed-off-by: Arik Hadas <ahadas(a)redhat.com&gt; --- M frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/Frontend.java M frontend/webadmin/modules/uicommonweb/src/main/java/org/ovirt/engine/ui/uicommonweb/models/datacenters/DataCenterGuideModel.java M frontend/webadmin/modules/uicommonweb/src/main/java/org/ovirt/engine/ui/uicommonweb/models/storage/StorageListModel.java M frontend/webadmin/modules/uicommonweb/src/main/java/org/ovirt/engine/ui/uicommonweb/models/userportal/VmItemBehavior.java M frontend/webadmin/modules/uicommonweb/src/main/java/org/ovirt/engine/ui/uicommonweb/models/vms/VmListModel.java M frontend/webadmin/modules/uicommonweb/src/main/java/org/ovirt/engine/ui/uicommonweb/models/vms/VmSnapshotListModel.java 6 files changed, 41 insertions(+), 92 deletions(-) Approvals: Tomas Jelinek: Verified; Looks good to me, approved -- To view, visit http://gerrit.ovirt.org/11734 To unsubscribe, visit http://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: Ic0cf37a9f4ffb973a3791323596af6d97c7365cb Gerrit-PatchSet: 5 Gerrit-Project: ovirt-engine Gerrit-Branch: master Gerrit-Owner: Arik Hadas <ahadas(a)redhat.com&gt; Gerrit-Reviewer: Arik Hadas <ahadas(a)redhat.com&gt; Gerrit-Reviewer: Daniel Erez <derez(a)redhat.com&gt; Gerrit-Reviewer: Gilad Chaplik <gchaplik(a)redhat.com&gt; Gerrit-Reviewer: Kanagaraj M <kmayilsa(a)redhat.com&gt; Gerrit-Reviewer: Tomas Jelinek <tjelinek(a)redhat.com&gt; Gerrit-Reviewer: Vojtech Szocs <vszocs(a)redhat.com&gt;