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1 package com.daffodilwoods.daffodildb.server.sessionsystem.sessioncondition;
2
3 import com.daffodilwoods.database.resource.DException;
4 import com.daffodilwoods.daffodildb.utils.field.FieldBase;
5 import com.daffodilwoods.daffodildb.server.sql99.dql.iterator._Iterator;
6 import java.lang.reflect.Array  ;
7 import com.daffodilwoods.database.general.*;
8
9 public class TransactionSessionCondition implements _SessionCondition {
10
11 Object [] condition;
12 private static int[] TITISS = {SystemFields.transactionId ,SystemFields.invalidTransactionId ,SystemFields.invalidSessionId ,SystemFields.sessionId };
13 public TransactionSessionCondition(Object [] presentConditionValues ) throws DException{
14 condition = new Object [6];
15 Object transactionId = presentConditionValues[0];
16 Object sessionIds = presentConditionValues[1];
17 condition[0] = transactionId;
18 condition[1] = transactionId ;
19 condition[2] = sessionIds;
20 condition[3] = transactionId ;
21 condition[4] = sessionIds;
22 condition[5] = sessionIds;
23 }
24
25
26
27
28 public boolean evaluate(_Iterator nonIndexedIterator) throws DException {
29 Object [] valuesToCompare = (Object [])nonIndexedIterator.getColumnValues( TITISS);
31 return ( StaticConditionHelper.compare((FieldBase)condition[0],valuesToCompare[0] ) >= 0 ) &&
32 (StaticConditionHelper.compare((FieldBase)condition[1], valuesToCompare[1] ) < 0 ) &&
33 ( ! StaticConditionHelper.solveInConditon((Object [])condition[2] , (FieldBase)valuesToCompare[2])) ? true
34 : ( (StaticConditionHelper.compare(condition[3] , valuesToCompare[0]) < 0) &&
35 ( StaticConditionHelper.solveInConditon((Object [])condition[4], (FieldBase)valuesToCompare[3]) ) &&
36 ( ! StaticConditionHelper.solveInConditon((Object [])condition[5] ,(FieldBase) valuesToCompare[2]) ) );
37
38 }
39
40 public void setParameterValues(Object [] values) throws DException{
41 Object transactionId = values[0];
42 Object sessionIds = (Object [])values[1];
43 condition[0] = transactionId;
44 condition[1] = transactionId ;
45 condition[2] = sessionIds;
46 condition[3] = transactionId ;
47 condition[4] = sessionIds;
48 condition[5] = sessionIds;
49 }
50
51 public String toString(){
52 return "[ TRANSACTION_SESSION_CONDITION => ((transactionId <= "+condition[0]+" and InvalidTransactionId > "+condition[1]+" and "+
53 " invalidSessionId not in ("+print(condition[2])+") ) or (transactionId > "+condition[3]+" and "+
54 " sessionId in ("+print(condition[4])+") and invalidSessionId not in ("+print(condition[5])+") )) ]" ;
55 }
56
57 private String print(Object array){
58 if(array == null )
59 return "[null]";
60 int length = Array.getLength (array);
61 String line = "";
62 for(int i = 0 ; i < length;i++){
63 Object obj = Array.get(array,i);
64 line += "["+ (check(obj) ? print(obj) : (""+obj)) +"]";
65 }
66 return line;
67 }
68
69 private static boolean check(Object array) {
70 if(array == null)
71 return false;
72 try{
73 Array.getLength (array);
74 return true;
75 }catch(IllegalArgumentException ia){return false;}
76 }
77
78
79 }
80
81 |
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