public void setCategory(java.util.Collection<DimensionField> category) {
        if (category == null) {
            this.category = null;
            return;
        }

        this.category = new java.util.ArrayList<DimensionField>(category);
    }
<p>
The aggregated category field wells of a combo chart.
</p>

@param category
       The aggregated category field wells of a combo chart.
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/ComboChartAggregatedFieldWells.java