public boolean equals(Object obj) {
        if (obj == this) {
            return true;   
        }
        if (!(obj instanceof StandardXYURLGenerator)) {
            return false;
        }
        StandardXYURLGenerator that = (StandardXYURLGenerator) obj;
        if (!ObjectUtilities.equal(that.prefix, this.prefix)) {
            return false;
        }
        if (!ObjectUtilities.equal(that.seriesParameterName, 
                this.seriesParameterName)) {
            return false;
        }
        if (!ObjectUtilities.equal(that.itemParameterName, 
                this.itemParameterName)) {
            return false;
        }
        return true;