public CopyDBClusterParameterGroupRequest withSourceDBClusterParameterGroupIdentifier(String sourceDBClusterParameterGroupIdentifier) {
        setSourceDBClusterParameterGroupIdentifier(sourceDBClusterParameterGroupIdentifier);
        return this;
    }
<p>
The identifier or Amazon Resource Name (ARN) for the source DB cluster parameter group. For information about
creating an ARN, see <a
href="https://docs.aws.amazon.com/neptune/latest/UserGuide/tagging.ARN.html#tagging.ARN.Constructing">
Constructing an Amazon Resource Name (ARN)</a>.
</p>
<p>
Constraints:
</p>
<ul>
<li>
<p>
Must specify a valid DB cluster parameter group.
</p>
</li>
<li>
<p>
If the source DB cluster parameter group is in the same Amazon Region as the copy, specify a valid DB parameter
group identifier, for example <code>my-db-cluster-param-group</code>, or a valid ARN.
</p>
</li>
<li>
<p>
If the source DB parameter group is in a different Amazon Region than the copy, specify a valid DB cluster
parameter group ARN, for example <code>arn:aws:rds:us-east-1:123456789012:cluster-pg:custom-cluster-group1</code>
.
</p>
</li>
</ul>

@param sourceDBClusterParameterGroupIdentifier
       The identifier or Amazon Resource Name (ARN) for the source DB cluster parameter group. For information
       about creating an ARN, see <a
       href="https://docs.aws.amazon.com/neptune/latest/UserGuide/tagging.ARN.html#tagging.ARN.Constructing">
       Constructing an Amazon Resource Name (ARN)</a>.</p>
       <p>
       Constraints:
       </p>
       <ul>
       <li>
       <p>
       Must specify a valid DB cluster parameter group.
       </p>
       </li>
       <li>
       <p>
       If the source DB cluster parameter group is in the same Amazon Region as the copy, specify a valid DB
       parameter group identifier, for example <code>my-db-cluster-param-group</code>, or a valid ARN.
       </p>
       </li>
       <li>
       <p>
       If the source DB parameter group is in a different Amazon Region than the copy, specify a valid DB cluster
       parameter group ARN, for example
       <code>arn:aws:rds:us-east-1:123456789012:cluster-pg:custom-cluster-group1</code>.
       </p>
       </li>
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/CopyDBClusterParameterGroupRequest.java