public String getSourceDBClusterSnapshotIdentifier() {
        return this.sourceDBClusterSnapshotIdentifier;
    }
<p>
The identifier of the cluster snapshot to copy. This parameter is not case sensitive.
</p>
<p>
Constraints:
</p>
<ul>
<li>
<p>
Must specify a valid system snapshot in the <i>available</i> state.
</p>
</li>
<li>
<p>
If the source snapshot is in the same Amazon Web Services Region as the copy, specify a valid snapshot
identifier.
</p>
</li>
<li>
<p>
If the source snapshot is in a different Amazon Web Services Region than the copy, specify a valid cluster
snapshot ARN.
</p>
</li>
</ul>
<p>
Example: <code>my-cluster-snapshot1</code>
</p>

@return The identifier of the cluster snapshot to copy. This parameter is not case sensitive.</p>
        <p>
        Constraints:
        </p>
        <ul>
        <li>
        <p>
        Must specify a valid system snapshot in the <i>available</i> state.
        </p>
        </li>
        <li>
        <p>
        If the source snapshot is in the same Amazon Web Services Region as the copy, specify a valid snapshot
        identifier.
        </p>
        </li>
        <li>
        <p>
        If the source snapshot is in a different Amazon Web Services Region than the copy, specify a valid
        cluster snapshot ARN.
        </p>
        </li>
        </ul>
        <p>
        Example: <code>my-cluster-snapshot1</code>
aws-java-sdk-docdb/src/main/java/com/amazonaws/services/docdb/model/CopyDBClusterSnapshotRequest.java