public void setNextToken(String nextToken) {
        this.nextToken = nextToken;
    }
An opaque token indicating that more items than <code>MaxNumberOfItems</code> were matched, the response size
exceeded 1 megabyte, or the execution time exceeded 5 seconds.

@param nextToken
       An opaque token indicating that more items than <code>MaxNumberOfItems</code> were matched, the response
       size exceeded 1 megabyte, or the execution time exceeded 5 seconds.
aws-java-sdk-simpledb/src/main/java/com/amazonaws/services/simpledb/model/SelectResult.java