public void setSourceEnvironmentName(String sourceEnvironmentName) {
        this.sourceEnvironmentName = sourceEnvironmentName;
    }
<p>
The name of the source environment.
</p>
<p>
Condition: You must specify at least the <code>SourceEnvironmentID</code> or the
<code>SourceEnvironmentName</code>. You may also specify both. If you specify the
<code>SourceEnvironmentName</code>, you must specify the <code>DestinationEnvironmentName</code>.
</p>

@param sourceEnvironmentName
       The name of the source environment.</p>
       <p>
       Condition: You must specify at least the <code>SourceEnvironmentID</code> or the
       <code>SourceEnvironmentName</code>. You may also specify both. If you specify the
       <code>SourceEnvironmentName</code>, you must specify the <code>DestinationEnvironmentName</code>.
aws-java-sdk-elasticbeanstalk/src/main/java/com/amazonaws/services/elasticbeanstalk/model/SwapEnvironmentCNAMEsRequest.java