public String getContentDisposition() {
        return contentDisposition;
    }
Returns the content disposition response header override if it has been
specified, or null otherwise.

@return Returns the content disposition response header override if it
        has been specified, or null otherwise.
@see ResponseHeaderOverrides#RESPONSE_HEADER_CONTENT_DISPOSITION
aws-java-sdk-s3/src/main/java/com/amazonaws/services/s3/model/ResponseHeaderOverrides.java