public String getSourceSnapshotIdentifier() {
        return this.sourceSnapshotIdentifier;
    }
<p>
The identifier for the source snapshot.
</p>
<p>
Constraints:
</p>
<ul>
<li>
<p>
Must be the identifier for a valid automated snapshot whose state is <code>available</code>.
</p>
</li>
</ul>

@return The identifier for the source snapshot.</p>
        <p>
        Constraints:
        </p>
        <ul>
        <li>
        <p>
        Must be the identifier for a valid automated snapshot whose state is <code>available</code>.
        </p>
        </li>
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/CopyClusterSnapshotRequest.java