public String getDatabaseInstallationFilesS3Prefix() {
        return this.databaseInstallationFilesS3Prefix;
    }
<p>
The Amazon S3 directory that contains the database installation files for your CEV. For example, a valid bucket
name is <code>123456789012/cev1</code>. If this setting isn't specified, no prefix is assumed.
</p>

@return The Amazon S3 directory that contains the database installation files for your CEV. For example, a valid
        bucket name is <code>123456789012/cev1</code>. If this setting isn't specified, no prefix is assumed.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/CreateCustomDBEngineVersionRequest.java