public void setAttachmentIds(java.util.Collection<String> attachmentIds) {
        if (attachmentIds == null) {
            this.attachmentIds = null;
            return;
        }

        this.attachmentIds = new java.util.ArrayList<String>(attachmentIds);
    }
<p>
A list of unique identifiers for the attachments.
</p>

@param attachmentIds
       A list of unique identifiers for the attachments.
aws-java-sdk-connectparticipant/src/main/java/com/amazonaws/services/connectparticipant/model/CompleteAttachmentUploadRequest.java