URGENT: Subquery IN error

Question

Hi
I want to execute a select as follows -
select * from obj, re where re.obj_key in (select obj.obj_key from obj where obj.obj_name like '%' )
To handle this - I have the following code:
ReportQuery subQuery =new ReportQuery(Obj.class, objExpr);
subQuery.addAttribute("objKey", subQuery.getExpressionBuilder().get("objKey"));
subQuery.setShouldCacheStatement(false);
subQuery.setSelectionCriteria(objExpr);
System.out.println("reportqry ok:"+subQuery.getSQLString());
newExpr = new ExpressionBuilder().get("objKey").in(subQuery);
System.out.println("reportqry ok:"+subQuery.getSQLString());
newExpr = new ExpressionBuilder().get("objKey").in(subQuery);
I get error - "Invalid Query Key" error for "objKey". Also if I pring the SQLStatement for subQuery I get null.
Any suggestions on what I might be doing wrong here ?

Answer 1

Thx for your response. My descriptor has this query key defined.
Here is the snippet from my toplink xmlfile :
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>actKey</opm:attribute-name>
<opm:field table="RECON_EVENTS" name="ACT_KEY" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>objKey</opm:attribute-name>
<opm:field table="RECON_EVENTS" name="OBJ_KEY" xsi:type="opm:column"/>
</opm:attribute-mapping>
Full stacktrace is: Exception [TOPLINK-6015] (Oracle TopLink - 11g Release 1 (11.1.1.0.0) (Build 080228)): oracle.toplink.exceptions.QueryException
[junit] Exception Description: Invalid query key [objKey] in expression.
[junit] at oracle.toplink.exceptions.QueryException.invalidQueryKeyInExpression(QueryException.java:620)
[junit] at oracle.toplink.internal.expressions.QueryKeyExpression.getQueryKeyOrNull(QueryKeyExpression.java:362)
[junit] at oracle.toplink.internal.expressions.ObjectExpression.getDescriptor(ObjectExpression.java:215)
[junit] at oracle.toplink.internal.expressions.DataExpression.getOwnedTables(DataExpression.java:214)
at oracle.toplink.internal.expressions.ObjectExpression.getOwnedTables(ObjectExpression.java:304)
[junit] at oracle.toplink.internal.expressions.QueryKeyExpression.getOwnedTables(QueryKeyExpression.java:348)
[junit] at oracle.toplink.expressions.Expression.assignTableAliasesStartingAt(Expression.java:465)
[junit] at oracle.toplink.internal.expressions.SQLSelectStatement$1.iterate(SQLSelectStatement.java:697)
[junit] at oracle.toplink.expressions.Expression.iterateOn(Expression.java:2199)
[junit] at oracle.toplink.internal.expressions.DataExpression.iterateOn(DataExpression.java:305)
[junit] at oracle.toplink.internal.expressions.SubSelectExpression.iterateOn(SubSelectExpression.java:59)
at oracle.toplink.internal.expressions.FunctionExpression.iterateOn(FunctionExpression.java:311)
[junit] at oracle.toplink.internal.expressions.CompoundExpression.iterateOn(CompoundExpression.java:190)
[junit] at oracle.toplink.internal.expressions.ExpressionIterator.iterateOn(ExpressionIterator.java:65)
[junit] at oracle.toplink.internal.expressions.SQLSelectStatement.assignAliases(SQLSelectStatement.java:710)
[junit] at oracle.toplink.internal.expressions.SQLSelectStatement.normalize(SQLSelectStatement.java:1333)
[junit] at oracle.toplink.internal.queryframework.ExpressionQueryMechanism.buildReportQuerySelectStatement(ExpressionQueryMechanism.java:512)
[junit] at oracle.toplink.internal.queryframework.ExpressionQueryMechanism.buildReportQuerySelectStatement(ExpressionQueryMechanism.java:464)
[junit] at oracle.toplink.internal.queryframework.ExpressionQueryMechanism.prepareReportQuerySelectAllRows(ExpressionQueryMechanism.java:1489)
[junit] at oracle.toplink.queryframework.ReportQuery.prepareSelectAllRows(ReportQuery.java:1201)
[junit] at oracle.toplink.queryframework.ReadAllQuery.prepare(ReadAllQuery.java:767)
[junit] at oracle.toplink.queryframework.ReportQuery.prepare(ReportQuery.java:973)
[junit] at oracle.toplink.queryframework.DatabaseQuery.checkPrepare(DatabaseQuery.java:443)
[junit] at oracle.toplink.queryframework.ObjectLevelReadQuery.checkPrepare(ObjectLevelReadQuery.java:608)
[junit] at oracle.toplink.queryframework.DatabaseQuery.prepareCall(DatabaseQuery.java:1528)
[junit] at oracle.iam.reconciliation.dao.event.EventMgmtDao.getSearchResultCount(EventMgmtDao.java:434)
[junit] at oracle.iam.reconciliation.impl.EventMgmtServiceImpl.getSearchCount(EventMgmtServiceImpl.java:121)
Also my sql whereclause has more than just this condition - so here is the expression output I get:
Function operator IN
[junit] Query Key objKey
[junit] Base QUERY OBJECT
[junit] overall expr:
[junit] Logical operator OR
[junit] Logical operator OR
[junit] Logical operator OR
[junit] Relation operator =
[junit] Query Key reChangeType
[junit] Base QUERY OBJECT
[junit] Constant No Match Found
[junit] Relation operator =
[junit] Query Key reEntityType
[junit] Base QUERY OBJECT
[junit] Constant No Match Found
[junit] Relation operator =
[junit] Query Key reStatus
[junit] Base QUERY OBJECT
[junit] Constant No Match Found
[junit] Function operator IN
[junit] Query Key objKey
[junit] Base QUERY OBJECT
If I wanted to - is it possible to use SQL just to handle this expression alone ?