public void setId(String id) {
        this.id = id;
    }
<p>
The unique identifier for the query result item id (<code>Id</code>) and the query result item document id (
<code>DocumentId</code>) combined. The value of this field changes with every request, even when you have the
same documents.
</p>

@param id
       The unique identifier for the query result item id (<code>Id</code>) and the query result item document id
       (<code>DocumentId</code>) combined. The value of this field changes with every request, even when you have
       the same documents.
aws-java-sdk-kendra/src/main/java/com/amazonaws/services/kendra/model/QueryResultItem.java