public void setDomainId(String domainId) {
        this.domainId = domainId;
    }
<p>
The ID of the domain where the data lineage node type lives.
</p>

@param domainId
       The ID of the domain where the data lineage node type lives.
aws-java-sdk-datazoneexternal/src/main/java/com/amazonaws/services/datazone/model/LineageNodeTypeItem.java