Hi all,
I am a new bee for OJB.
I got an error in the m:n relationship.
I have two classes
1)Users - UserName(PK),pwd
2)Role - RoleId(PK),roleName
3)User_role - UserName(FK),RoleId(FK);
The users class contains the collection of the role class object and vice versa.
When I was tring to get a user object by Id the following exception is
encountered :-
org.apache.ojb.broker.metadata.MetadataException: IllegalAccess error setting
field:users in object:test.core.Role
at
org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImplNew.setValueFor(PersistentFieldDirectAccessImplNew.java:226)
at
org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImplNew.set(PersistentFieldDirectAccessImplNew.java:158)
at
org.apache.ojb.broker.core.QueryReferenceBroker.retrieveCollection(QueryReferenceBroker.java:584)
at
org.apache.ojb.broker.core.QueryReferenceBroker.retrieveCollections(QueryReferenceBroker.java:748)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getDBObject(PersistenceBrokerImpl.java:1303)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.doGetObjectByIdentity(PersistenceBrokerImpl.java:1367)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getObjectByIdentity(PersistenceBrokerImpl.java:1346)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getObjectByQuery(PersistenceBrokerImpl.java:1435)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getObjectByQuery(DelegatingPersistenceBroker.java:307)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getObjectByQuery(DelegatingPersistenceBroker.java:307)
at test.db.MySQLStorageEntity.read(MySQLStorageEntity.java:125)
at test.db.DataManager.read(DataManager.java:151)
at test.test.User.AssignRole.apply(AssignRole.java:46)
at test.test.Application.run(Application.[PersistentField] ERROR: while
set field:
[try to set 'object value' in 'target object'
target obj class: test.core.Role
target field name: users
target field type: class java.util.Vector
object value class: org.apache.ojb.broker.util.collections.ManageableArrayList
object value: []
]
[PersistentField] ERROR: while set field:
[try to set 'object value' in 'target object'
target obj class: test.core.User
target field name: roles
target field type: class java.util.Vector
object value class: org.apache.ojb.broker.util.collections.ManageableArrayList
object value: [[1] analyst, [2] programmer]
]
java:101)
at test.test.Application.main(Application.java:85)
Caused by: java.lang.IllegalArgumentException
at
sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:63)
at java.lang.reflect.Field.set(Field.java:656)
at
org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImplNew.setValueFor(PersistentFieldDirectAccessImplNew.java:213)
... 14 more
org.apache.ojb.broker.metadata.MetadataException: IllegalAccess error setting
field:roles in object:test.core.User
at
org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImplNew.setValueFor(PersistentFieldDirectAccessImplNew.java:226)
at
org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImplNew.set(PersistentFieldDirectAccessImplNew.java:158)
at
org.apache.ojb.broker.core.QueryReferenceBroker.retrieveCollection(QueryReferenceBroker.java:584)
at
org.apache.ojb.broker.core.QueryReferenceBroker.retrieveCollections(QueryReferenceBroker.java:748)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getDBObject(PersistenceBrokerImpl.java:1303)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.doGetObjectByIdentity(PersistenceBrokerImpl.java:1367)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getObjectByIdentity(PersistenceBrokerImpl.java:1346)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getObjectByQuery(PersistenceBrokerImpl.java:1435)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getObjectByQuery(DelegatingPersistenceBroker.java:307)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getObjectByQuery(DelegatingPersistenceBroker.java:307)
at test.db.MySQLStorageEntity.read(MySQLStorageEntity.java:125)
at test.db.DataManager.read(DataManager.java:151)
at test.test.User.AssignRole.apply(AssignRole.java:47)
at test.test.Application.run(Application.java:101)
at test.test.Application.main(Application.java:85)
Caused by: java.lang.IllegalArgumentException
at
sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:63)
at java.lang.reflect.Field.set(Field.java:656)
at
org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImplNew.setValueFor(PersistentFieldDirectAccessImplNew.java:213)
... 14 more
I will be very thankful If anyone gives me the solution for this problem.
-sachin
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