@Override
    public void setClassification(final String classification) {
        classificationWrapperView.setClassification(classification);
        if (this.classificationUiHandlers != null) {
            this.classificationUiHandlers.setClassification(classification);
        }
    }
Compare the {@link DataRange}s using on the from/to {@link Location};
stroom-core-client/src/main/java/stroom/data/client/presenter/SourcePresenter.java