public Filter withField(FilterField field) {
        this.field = field.toString();
        return this;
    }
<p>
The field on which to filter.
</p>

@param field
       The field on which to filter.
@return Returns a reference to this object so that method calls can be chained together.
@see FilterField
aws-java-sdk-qconnect/src/main/java/com/amazonaws/services/qconnect/model/Filter.java