How to get the parent value

Question

Hi
I am using jdev 11.1.1.5
In this i had used gl_acct_classes VO and gl_accounts VO and an updatable AccountsVO
select * from gl_acct_classes,gl_accounts from gl_acct_classes.acct = gl_accounts.acctI have the fields gacl_id , gacl_prim_id
In this which ever gaclid has the value null in gacl_prim_id had been consider as parent
for eg
sno        gacl_id       gacl_prim_id
1             a                                       //It is consider as parent since gacl_prim_id is null
2             o                  a
3             e                  a                  
//In this a is parent for o and e
4             b                                       //parent
5             t                   b
6             r                   b
// b is parent for t and rI need to get the sum of all the accounts having o,e as a class id in which a is a parent and t,r as a class id in which b is a parent
I hope that i may be clear for u..,

Answer 1

I had used ParentVO GlAccountClassVO
I had also created a viewlink
ParentVO.cl_id = AccountClasses.GACL_ID
Querry for ParentVO updatable
SELECT GlAccountClasses.GACL_ACCT_TYPE,
       GlAccountClasses.GACL_BU,
       GlAccountClasses.GACL_CRE_BY,
       GlAccountClasses.GACL_CRE_DATE,
       GlAccountClasses.GACL_DESC1,
       GlAccountClasses.GACL_DESC2,
       GlAccountClasses.GACL_GP_FLAG,
       GlAccountClasses.GACL_ID,
       GlAccountClasses.GACL_OPTYPE,
       GlAccountClasses.GACL_PRIM_ID,
       GlAccountClasses.GACL_PT_SEQ_NO,
       GlAccountClasses.GACL_SCH_NO,
       GlAccountClasses.GACL_SEQ_NO,
       GlAccountClasses.GACL_UPD_BY,
       GlAccountClasses.GACL_UPD_DATE
FROM GL_ACCOUNT_CLASSES GlAccountClasses
WHERE GACL_PRIM_ID is nullI had created a Transient attrbute with the following groovy expression sinct it doesnt work
AccountClass.sum("GapbDebitAmt")