public String getKey() {
        return this.key;
    }
<p>
The name of the file to transcode. Elsewhere in the body of the JSON block is the the ID of the pipeline to use
for processing the job. The <code>InputBucket</code> object in that pipeline tells Elastic Transcoder which
Amazon S3 bucket to get the file from.
</p>
<p>
If the file name includes a prefix, such as <code>cooking/lasagna.mpg</code>, include the prefix in the key. If
the file isn't in the specified bucket, Elastic Transcoder returns an error.
</p>

@return The name of the file to transcode. Elsewhere in the body of the JSON block is the the ID of the pipeline
        to use for processing the job. The <code>InputBucket</code> object in that pipeline tells Elastic
        Transcoder which Amazon S3 bucket to get the file from. </p>
        <p>
        If the file name includes a prefix, such as <code>cooking/lasagna.mpg</code>, include the prefix in the
        key. If the file isn't in the specified bucket, Elastic Transcoder returns an error.
aws-java-sdk-elastictranscoder/src/main/java/com/amazonaws/services/elastictranscoder/model/JobInput.java