public DescribeBatchPredictionsRequest withPrefix(String prefix) {
        setPrefix(prefix);
        return this;
    }
<p>
A string that is found at the beginning of a variable, such as <code>Name</code> or <code>Id</code>.
</p>
<p>
For example, a <code>Batch Prediction</code> operation could have the <code>Name</code>
<code>2014-09-09-HolidayGiftMailer</code>. To search for this <code>BatchPrediction</code>, select
<code>Name</code> for the <code>FilterVariable</code> and any of the following strings for the
<code>Prefix</code>:
</p>
<ul>
<li>
<p>
2014-09
</p>
</li>
<li>
<p>
2014-09-09
</p>
</li>
<li>
<p>
2014-09-09-Holiday
</p>
</li>
</ul>

@param prefix
       A string that is found at the beginning of a variable, such as <code>Name</code> or <code>Id</code>.</p>
       <p>
       For example, a <code>Batch Prediction</code> operation could have the <code>Name</code>
       <code>2014-09-09-HolidayGiftMailer</code>. To search for this <code>BatchPrediction</code>, select
       <code>Name</code> for the <code>FilterVariable</code> and any of the following strings for the
       <code>Prefix</code>:
       </p>
       <ul>
       <li>
       <p>
       2014-09
       </p>
       </li>
       <li>
       <p>
       2014-09-09
       </p>
       </li>
       <li>
       <p>
       2014-09-09-Holiday
       </p>
       </li>
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-machinelearning/src/main/java/com/amazonaws/services/machinelearning/model/DescribeBatchPredictionsRequest.java