@Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        ElementGap that = (ElementGap) o;
        return gap != null ? gap.equals(that.gap) : that.gap == null;
    }
The gap between positions in adjacent elements in multi-value fields.

@author toregge
config-model/src/main/java/com/yahoo/schema/ElementGap.java