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

        this.accountIds = new java.util.ArrayList<String>(accountIds);
    }
<p>
A list of account IDs of the Amazon Web Services accounts that sent invitations to the current member account
that you want to delete invitations from.
</p>

@param accountIds
       A list of account IDs of the Amazon Web Services accounts that sent invitations to the current member
       account that you want to delete invitations from.
aws-java-sdk-guardduty/src/main/java/com/amazonaws/services/guardduty/model/DeleteInvitationsRequest.java