for (int i = 0; i < this.datasets.size(); i++) {
            Integer mappedAxis = (Integer) this.datasetToDomainAxisMap.get(
                    new Integer(i));
            if (mappedAxis == null) {
                if (axisIndex.equals(ZERO)) {
                    result.add(this.datasets.get(i));
                }
            }
            else {
                if (mappedAxis.equals(axisIndex)) {
                    result.add(this.datasets.get(i));