gozirra-ws/src/main/java/com/hi3project/vineyard/comm/stomp/gozirraws/Stomp.java
public boolean hasReceipt( String receipt_id ) {
    synchronized( _receipts ) {
      for (Iterator i=_receipts.iterator(); i.hasNext();) {
        String o = (String)i.next();
        if (o.equals(receipt_id)) return true;
      }
    }
    return false;
  }
public boolean hasReceipt( String receipt_id ) {
    synchronized( _receipts ) {
      for (Iterator i=_receipts.iterator(); i.hasNext();) {
        String o = (String)i.next();
        if (o.equals(receipt_id)) return true;
      }
    }
    return false;
  }
Checks to see if a receipt has come in.

@param receipt_id the id of the receipts to find