public void setSingularConstant(String singularConstant) {
        this.singularConstant = singularConstant;
    }
<p>
A singular constant used in a category filter. This element is used to specify a single value for the constant.
</p>

@param singularConstant
       A singular constant used in a category filter. This element is used to specify a single value for the
       constant.
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/TopicCategoryFilterConstant.java