public ConnectionHttpParameters withQueryStringParameters(ConnectionQueryStringParameter... queryStringParameters) {
        if (this.queryStringParameters == null) {
            setQueryStringParameters(new java.util.ArrayList<ConnectionQueryStringParameter>(queryStringParameters.length));
        }
        for (ConnectionQueryStringParameter ele : queryStringParameters) {
            this.queryStringParameters.add(ele);
        }
        return this;
    }
<p>
Contains additional query string parameters for the connection.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setQueryStringParameters(java.util.Collection)} or
{@link #withQueryStringParameters(java.util.Collection)} if you want to override the existing values.
</p>

@param queryStringParameters
       Contains additional query string parameters for the connection.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-events/src/main/java/com/amazonaws/services/cloudwatchevents/model/ConnectionHttpParameters.java