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- Effect: The tree might still jump slightly when expanding/collapsing nodes, just for the time it repaints.
- Cause: There It is likely that there is some scroll position hack in
TreeTableConnectorconnectors that we should assert how useful it is.- FOUND! line 138 in
TableConnector:getWidget().updateFirstVisibleAndScrollIfNeeded(uidl); - It is even documented in
VScrollTableas/** For internal use only. May be removed or replaced in the future. */
- FOUND! line 138 in
- Fix: If experiment is convincing, this is also a matter of patching that Vaadin class Patch
TableConnectorto remove the call orVScrollTableto remove the body of that method.
Disculped
- It is interesting to note that our JCR containers are fine; they are not causing performance flaws.
- Some methods however should be left unsupported since the container should be read-only, in other words, persistance is not managed by the container.
- There is interesting insight on this in the Vaadin book section about SQL container.
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