@Override
    public boolean equals(final Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        final PipelineElementBox that = (PipelineElementBox) o;
        return Objects.equals(pipelineElement, that.pipelineElement);
    }
Set the severity for this pipe element or null if there isn't one.
Not all severities are rendered.
stroom-core-client/src/main/java/stroom/pipeline/structure/client/view/PipelineElementBox.java