1 package mobisnap.common.reservation;
2
3 import java.io.*;
4 import mobisnap.mobile_trx.*;
5
6 /***
7 * Represents a escrow reservation
8 *
9 * @version 0.045 12-Dec-2000
10 * @author Nuno Pregui�a
11 */
12 public class EscrowReservation
13 extends ReservationBase
14 implements Serializable
15 {
16 Object instances;
17
18 public EscrowReservation( String table, String column, Object instances) {
19 super( table, column);
20 this.instances = instances;
21 }
22
23 public Object getInstances(){
24 return instances;
25 }
26
27 /***
28 * Checks the given parameters are backed up by this reservation.
29 * If so, sets the reserved value to the variable and
30 * associate the reservation with the given variable - through a REservationUseBase
31 * class which is returned
32 * NOTE: Currently only select in the form of
33 * "select col(,col)* into var(,var)* from table where cond1 (AND cond2)*"
34 * can be checked
35 *
36 * @param var Variable involved
37 * @param table Table name of possible reservation
38 * @param column Column name of possible reservation
39 * @param where Table row specification
40 * @return Return null if there is no associateion between the given parameters
41 * ans this reservation. Otherwise returns a class to represent the reservation use
42 */
43 public ReservationUseBase checkReservation( MSQLTVariable var, String table, String column, SimpleNode where) {
44 if( checkReservation( table, column, where)) {
45 ReservationUseBase rub = new EscrowReservationUse( this);
46 var.associateRsrv( rub);
47 try {
48 var.setValue( instances);
49 } catch( Exception e) {
50 // do nothing
51 }
52 return rub;
53 }
54 return null;
55
56 }
57
58 /***
59 * Returns a readable representation of this reervation - format:<BR>
60 * escrow rsrv_id reservation column from table where row specification instances number
61 */
62 public String toString() {
63 return "ESCROW " + super.toString() + " INSTANCES " + instances;
64 }
65 }
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