public String getSourceDBSnapshotIdentifier() {
        return this.sourceDBSnapshotIdentifier;
    }
<p>
The identifier for the source DB snapshot.
</p>
<p>
If the source snapshot is in the same Amazon Web Services Region as the copy, specify a valid DB snapshot
identifier. For example, you might specify <code>rds:mysql-instance1-snapshot-20130805</code>.
</p>
<p>
If the source snapshot is in a different Amazon Web Services Region than the copy, specify a valid DB snapshot
ARN. For example, you might specify
<code>arn:aws:rds:us-west-2:123456789012:snapshot:mysql-instance1-snapshot-20130805</code>.
</p>
<p>
If you are copying from a shared manual DB snapshot, this parameter must be the Amazon Resource Name (ARN) of the
shared DB snapshot.
</p>
<p>
If you are copying an encrypted snapshot this parameter must be in the ARN format for the source Amazon Web
Services Region.
</p>
<p>
Constraints:
</p>
<ul>
<li>
<p>
Must specify a valid system snapshot in the "available" state.
</p>
</li>
</ul>
<p>
Example: <code>rds:mydb-2012-04-02-00-01</code>
</p>
<p>
Example: <code>arn:aws:rds:us-west-2:123456789012:snapshot:mysql-instance1-snapshot-20130805</code>
</p>

@return The identifier for the source DB snapshot.</p>
        <p>
        If the source snapshot is in the same Amazon Web Services Region as the copy, specify a valid DB snapshot
        identifier. For example, you might specify <code>rds:mysql-instance1-snapshot-20130805</code>.
        </p>
        <p>
        If the source snapshot is in a different Amazon Web Services Region than the copy, specify a valid DB
        snapshot ARN. For example, you might specify
        <code>arn:aws:rds:us-west-2:123456789012:snapshot:mysql-instance1-snapshot-20130805</code>.
        </p>
        <p>
        If you are copying from a shared manual DB snapshot, this parameter must be the Amazon Resource Name
        (ARN) of the shared DB snapshot.
        </p>
        <p>
        If you are copying an encrypted snapshot this parameter must be in the ARN format for the source Amazon
        Web Services Region.
        </p>
        <p>
        Constraints:
        </p>
        <ul>
        <li>
        <p>
        Must specify a valid system snapshot in the "available" state.
        </p>
        </li>
        </ul>
        <p>
        Example: <code>rds:mydb-2012-04-02-00-01</code>
        </p>
        <p>
        Example: <code>arn:aws:rds:us-west-2:123456789012:snapshot:mysql-instance1-snapshot-20130805</code>
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/CopyDBSnapshotRequest.java