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1 package com.daffodilwoods.daffodildb.server.sql99.expression.booleanvalueexpression.predicates;
2
3 import com.daffodilwoods.daffodildb.server.sql99.common.*;
4 import com.daffodilwoods.daffodildb.server.sql99.dql.iterator.*;
5 import com.daffodilwoods.daffodildb.server.sql99.dql.plan.condition.*;
6 import com.daffodilwoods.daffodildb.server.sql99.dql.queryexpression.queryspecification.*;
7 import com.daffodilwoods.daffodildb.server.sql99.dql.tableexpression.fromclause.*;
8 import com.daffodilwoods.daffodildb.server.sql99.expression.booleanvalueexpression.*;
9 import com.daffodilwoods.daffodildb.server.sql99.expression.rowvalueexpression.*;
10 import com.daffodilwoods.daffodildb.server.sql99.token.*;
11 import com.daffodilwoods.daffodildb.server.sql99.utils.*;
12 import com.daffodilwoods.database.resource.*;
13 import com.daffodilwoods.database.utility.*;
14
15 public class existspredicate extends PredicateAbstract implements com.daffodilwoods.daffodildb.utils.parser.StatementExecuter, predicate, IntegerPool, ExecutionPlanConstants {
16 public tablesubquery _tablesubquery0;
17 public SNONRESERVEDWORD136444255 _SNONRESERVEDWORD1364442551;
18 private Boolean  subQueryFlag;
19
20 public double getCost(long rowCount, boolean index) throws DException {
21 return rowCount;
22 }
23
24 public _QualifiedBVE getQualifiedBVE(TableDetails[] tableDetails) throws DException {
25 return new QualifiedBVE(null, BVEPlanMerger.getBooleanFactor(this));
26 }
27
28 public int canUseForSeek() throws DException {
29 return TypeConstants.NOSEEK;
30 }
31
32 public int getPredicateType() throws DException {
33 return OperatorConstants.EXISTS;
34 }
35
36 public void setColumnPredicates(_AllColumnPredicates allColumnPredicates) throws DException {
37 allColumnPredicates.addToNonIndex(new booleanfactor(new booleantest(this)));
38 }
39
40 public int getConditionType() throws DException {
41 return PREDICATE;
42 }
43
44 public _BVEPlan getExecutionPlan() throws DException {
45 return new BVEAllTablePlan(null, null, BVEPlanMerger.getBooleanFactor(this));
46 }
47
48 private queryspecification querySpecification;
49
50 public Object run(Object object) throws com.daffodilwoods.database.resource.DException {
51 _Iterator iterator = (_Iterator) _tablesubquery0.run(object);
52 return iterator.first() ? IntegerPool.Integer0 : IntegerPool.Integer1;
53 }
54
55 public ParameterInfo[] getParameterInfo() throws DException {
56 ParameterInfo [] p0= _tablesubquery0.getParameterInfo()[0].getParameterInfoArray();
57 return p0==null ? new ParameterInfo[0]:p0; }
59
60 public AbstractRowValueExpression[] getChilds() {
61 AbstractRowValueExpression[] childs = new AbstractRowValueExpression[] { (AbstractRowValueExpression) (_tablesubquery0)};
62 return childs;
63 }
64
65 public void setDefaultValues(_VariableValueOperations variableValueOperation) throws DException {
66 }
67
68 public String toString() {
69 StringBuffer sb = new StringBuffer ();
70 sb.append(" ");
71 sb.append(_SNONRESERVEDWORD1364442551);
72 sb.append(" ");
73 sb.append(_tablesubquery0);
74 return sb.toString();
75 }
76
77 public com.daffodilwoods.daffodildb.server.sql99.utils._Reference[] checkSemantic(com.daffodilwoods.daffodildb.server.serversystem._ServerSession parent) throws DException {
78 return _tablesubquery0.checkSemantic(parent);
79 }
80
81 public Object clone() throws CloneNotSupportedException {
82 existspredicate tempClass = new existspredicate();
83 tempClass._tablesubquery0 = (tablesubquery) _tablesubquery0.clone();
84 tempClass._SNONRESERVEDWORD1364442551 = (SNONRESERVEDWORD136444255) _SNONRESERVEDWORD1364442551.clone();
85 try {
86 tempClass.getColumnDetails();
87 } catch (DException ex) {
88 throw new RuntimeException (ex.getMessage());
89 }
90 return tempClass;
91 }
92
93 }
94 |
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