@PipelineProperty(
            description = "The number of elements at the split depth to count before the XML is split.",
            defaultValue = "10000",
            displayPriority = 2)
    public void setSplitCount(final int splitCount) {
        this.splitCount = splitCount;
    }
Make sure the event array is going to be big enough to hold the item that
is just about to be added.
stroom-pipeline/src/main/java/stroom/pipeline/filter/SplitFilter.java