1 /* JJT: 0.2.2 */
2
3 package mobisnap.mobile_trx;
4
5 import java.util.*;
6
7 /***
8 * Implements short-circuit AND
9 */
10 public class ASTPlSqlAndExpression extends mobisnap.mobile_trx.SimpleNode {
11 public Vector ands;
12
13 public ASTPlSqlAndExpression(int id) {
14 super(id);
15 ands = new Vector();
16 }
17
18 public ASTPlSqlAndExpression( MobisnapSQL p, int i) {
19 super( p, i);
20 id = i;
21 ands = new Vector();
22 }
23
24 /*** Accept the visitor. **/
25 public Object jjtAccept(MobisnapSQLVisitor visitor, Object data) {
26 return visitor.visit(this, data);
27 }
28
29 /***
30 * Returns the value of the expression
31 *
32 * @param msql_type Specifies which type of processing should be performed
33 * MobisnapConstants.MSQL_SERVER = 1
34 * MobisnapConstants.MSQL_TENTATIVE_CLIENT = 2
35 * MobisnapConstants.MSQL_STABLE_CLIENT = 3
36 * MobisnapConstants.MSQL_RESERVATION_CLIENT = 4
37 * @param cond True if reservations associated with transaction should be
38 * propagated to the current transaction
39 */
40 public Object value( int msql_type, boolean cond) throws Exception {
41 int n = ands.size();
42 if( n == 0)
43 throw new mobisnap.MobisnapException( "Internal error in expotent expression");
44 Object val = ((ASTPlSqlUnaryLogicalExpression)ands.elementAt(0)).value( msql_type, cond);
45 for( int i = 1; i < n; i++) {
46 Object aux = ((ASTPlSqlUnaryLogicalExpression)ands.elementAt( i)).value( msql_type, cond);
47 val = MSQLTypeUtil.and( val, aux);
48 }
49 return val;
50 }
51
52 }
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