public void setS3KeyPrefix(String s3KeyPrefix) {
        this.s3KeyPrefix = s3KeyPrefix;
    }
<p>
The prefix applied to the log file names.
</p>
<p>
Constraints:
</p>
<ul>
<li>
<p>
Cannot exceed 512 characters
</p>
</li>
<li>
<p>
Cannot contain spaces( ), double quotes ("), single quotes ('), a backslash (\), or control characters. The
hexadecimal codes for invalid characters are:
</p>
<ul>
<li>
<p>
x00 to x20
</p>
</li>
<li>
<p>
x22
</p>
</li>
<li>
<p>
x27
</p>
</li>
<li>
<p>
x5c
</p>
</li>
<li>
<p>
x7f or larger
</p>
</li>
</ul>
</li>
</ul>

@param s3KeyPrefix
       The prefix applied to the log file names.</p>
       <p>
       Constraints:
       </p>
       <ul>
       <li>
       <p>
       Cannot exceed 512 characters
       </p>
       </li>
       <li>
       <p>
       Cannot contain spaces( ), double quotes ("), single quotes ('), a backslash (\), or control characters.
       The hexadecimal codes for invalid characters are:
       </p>
       <ul>
       <li>
       <p>
       x00 to x20
       </p>
       </li>
       <li>
       <p>
       x22
       </p>
       </li>
       <li>
       <p>
       x27
       </p>
       </li>
       <li>
       <p>
       x5c
       </p>
       </li>
       <li>
       <p>
       x7f or larger
       </p>
       </li>
       </ul>
       </li>
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/EnableLoggingRequest.java