Review

class ToStringStyle {
    /**
     * <p>Append to the <code>toString</code> an <code>int</code>
     * array.</p>
     *
     * @param buffer  the <code>StringBuffer</code> to populate
     * @param fieldName  the field name
     * @param array  the array to add to the <code>toString</code>
     * @param fullDetail  <code>true</code> for detail, <code>false</code>
     *  for summary info, <code>null</code> for style decides
     */
    public void append(StringBuffer buffer, String fieldName, int[] array, Boolean fullDetail) {
        appendFieldStart(buffer, fieldName);

        if (array == null) {
            appendNullText(buffer, fieldName);

        } else if (isFullDetail(fullDetail)) {
            appendDetail(buffer, fieldName, array);

        } else {
            appendSummary(buffer, fieldName, array);
        }

        appendFieldEnd(buffer, fieldName);
    }

}