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