@Override
    public Boolean setNodeEnabled(final String nodeName, final boolean enabled) {
        modifyNode(nodeName, enabled);

        return Boolean.TRUE;
    }
Sets all jobs on the given node to the supplied enabled state.

@param node    The node to set the enabled state on.
@param enabled The value of the enabled flag.
@return True if successful.
stroom-job/stroom-job-impl/src/main/java/stroom/job/impl/JobManagerImpl.java