@JsonIgnore
    public String getFilterInfo() {
        final StringBuilder sb = new StringBuilder();
        sb.append("filter id=");
        sb.append(id);

        if (uuid != null) {
            sb.append(", filter uuid=");
            sb.append(uuid);
        }
        if (processor != null && processor.getPipelineUuid() != null) {
            sb.append(", pipeline uuid=");
            sb.append(processor.getPipelineUuid());
        }
        if (pipelineName != null) {
            sb.append(", pipeline name=");
            sb.append(pipelineName);
        }
        return sb.toString();
    }
Zero means processing tasks are unbounded.
stroom-core-shared/src/main/java/stroom/processor/shared/ProcessorFilter.java