@Override
  public void invalidateRegion(Object aCallbackArgument) throws TimeoutException {
    getDataView().checkSupportsRegionInvalidate();
    checkReadiness();
    checkForLimitedOrNoAccess();
    RegionEventImpl event = new RegionEventImpl(this, Operation.REGION_INVALIDATE,
        aCallbackArgument, false, getMyId(), generateEventID());

    basicInvalidateRegion(event);
  }
Makes a copy, if copy-on-get is enabled, of the specified object.

@since GemFire 4.0
geode-core/src/main/java/org/apache/geode/internal/cache/LocalRegion.java