Indeed, it does :(
Tracing code in ManagedEntityIdentityInterceptor:
private static final Log log =
LogFactory.getLog(ManagedEntityIdentityInterceptor.class);
| private void getFromWrapper(Object bean, Field field, Object dataModel)
| throws Exception {
| Object value =
Contexts.getConversationContext().get(getFieldId(field));
| if (value != null) {
| if (dataModel == null) {
| if (field.getName().equals("resultList"))
| log.warn("getFromWrapper: "
| +
bean.getClass().getSimpleName() + "."
| + field.getName() + " =
" + value);
| Reflections.set(field, bean, value);
| } else {
| setWrappedData(dataModel, value);
| }
| }
| }
| private void saveWrapper(Object bean, Field field, Object dataModel,
| Object value) throws Exception {
| if (field.getName().equals("resultList"))
| log.warn("saveWrapper: conversation." +
getFieldId(field) + " = "
| + value);
| Contexts.getConversationContext().set(getFieldId(field), value);
| if (dataModel == null) {
| if (field.getName().equals("resultList"))
| log.warn("saveWrapper: " +
bean.getClass().getSimpleName()
| + "." + field.getName() + " =
null");
| Reflections.set(field, bean, null);
| } else {
| setWrappedData(dataModel, null);
| }
| }
|
Tracing in EntityQuery:
private void initResultList() {
| if (getEjbql() != null && getEjbql().startsWith("FROM
Account")) {
| log.warn("Entered initResultList: hashcode " +
this.hashCode()
| + ", list = " + resultList);
| }
| if (resultList == null) {
| javax.persistence.Query query = createQuery();
| resultList = query == null ? null :
query.getResultList();
| }
| if (getEjbql() != null && getEjbql().startsWith("FROM
Account")) {
| log.warn("Exited initResultList: hashcode " +
this.hashCode()
| + ", list = " + resultList);
| }
| }
| @Transactional
| @Override
| public List getResultList() {
| if (getEjbql() != null && getEjbql().startsWith("FROM
Account")) {
| log.warn("Entered getResultList: hashcode " +
this.hashCode()
| + ", list = " + resultList);
| }
| if (isAnyParameterDirty()) {
| refresh();
| }
| initResultList();
| try {
| return truncResultList(resultList);
| } finally {
| if (getEjbql() != null && getEjbql().startsWith("FROM
Account")) {
| log.warn("Exited getResultList: hashcode " +
this.hashCode()
| + ", list = " + resultList);
| }
| }
| }
| @Override
| public void refresh() {
| if (getEjbql() != null && getEjbql().startsWith("FROM
Account")) {
| log.warn("Entered refresh: hashcode " + this.hashCode()
| + ", list = " + resultList);
| }
| super.refresh();
| resultCount = null;
| resultList = null;
| singleResult = null;
| if (getEjbql() != null && getEjbql().startsWith("FROM
Account")) {
| log.warn("Exited refresh: hashcode " + this.hashCode()
| + ", list = " + resultList);
| }
| }
|
Tracing in AccountController (my code):
@Transactional
| public void save() {
| log.warn("save: before persist");
| em.persist(selectedAccount);
| log.warn("save: before flush");
| em.flush();
| selectedAccount = null;
| log.warn("save: before refresh");
| userAccounts.refresh();
| log.warn("save: after refresh");
| }
|
Log output on new record insert (resultList is supposed to go from one item to
two):
WARN [com.tdam.ptss.controller.AccountController] - save: before persist
| Hibernate: select SEQ_ACCOUNT.nextval from dual
| WARN [com.tdam.ptss.controller.AccountController] - save: before flush
| Hibernate: insert into Account (CREATED_BY, CREATED_ON, MODIFIED_BY,
MODIFIED_ON, ACCOUNT_NUMBER, closed, DEALER_NAME, discretionary,
FAMILY_EXEMPTION, NAME_ON_STATEMENT, USER_ID, id) values (?, ?, ?, ?, ?, ?, ?,
?, ?, ?, ?, ?)
| WARN [com.tdam.ptss.controller.AccountController] - save: before refresh
| WARN [org.jboss.seam.persistence.ManagedEntityIdentityInterceptor] -
getFromWrapper: EntityQuery.resultList = [Account[87]]
| WARN [org.jboss.seam.framework.EntityQuery] - Entered refresh: hashcode
27469166, list = [Account[87]]
| WARN [org.jboss.seam.framework.EntityQuery] - Exited refresh: hashcode
27469166, list = null
| WARN [com.tdam.ptss.controller.AccountController] - save: after refresh
| WARN [org.jboss.seam.persistence.ManagedEntityIdentityInterceptor] -
getFromWrapper: EntityQuery.resultList = [Account[87]]
| WARN [org.jboss.seam.framework.EntityQuery] - Entered getResultList:
hashcode 27469166, list = [Account[87]]
| WARN [org.jboss.seam.framework.EntityQuery] - Entered initResultList:
hashcode 27469166, list = [Account[87]]
| WARN [org.jboss.seam.framework.EntityQuery] - Exited initResultList:
hashcode 27469166, list = [Account[87]]
| WARN [org.jboss.seam.framework.EntityQuery] - Exited getResultList:
hashcode 27469166, list = [Account[87]]
| WARN [org.jboss.seam.persistence.ManagedEntityIdentityInterceptor] -
saveWrapper: conversation.userAccounts.resultList = [Account[87]]
| WARN [org.jboss.seam.persistence.ManagedEntityIdentityInterceptor] -
saveWrapper: EntityQuery.resultList = null
| WARN [org.jboss.seam.persistence.ManagedEntityIdentityInterceptor] -
getFromWrapper: EntityQuery.resultList = [Account[87]]
| WARN [org.jboss.seam.framework.EntityQuery] - Entered getResultList:
hashcode 27469166, list = [Account[87]]
| WARN [org.jboss.seam.framework.EntityQuery] - Entered initResultList:
hashcode 27469166, list = [Account[87]]
| WARN [org.jboss.seam.framework.EntityQuery] - Exited initResultList:
hashcode 27469166, list = [Account[87]]
| WARN [org.jboss.seam.framework.EntityQuery] - Exited getResultList:
hashcode 27469166, list = [Account[87]]
| WARN [org.jboss.seam.persistence.ManagedEntityIdentityInterceptor] -
saveWrapper: conversation.userAccounts.resultList = [Account[87]]
| WARN [org.jboss.seam.persistence.ManagedEntityIdentityInterceptor] -
saveWrapper: EntityQuery.resultList = null
|
Indeed, it does gets reset to old value right after I try to set it to null,
and, as it uses reflection, it's no wonder why debugger wasn't catching it :(.
Now, is that considered to be the normal behavior (in which case - are there
any ways to disable this interception?), or is this a bug (in which case I'll
submit it to JIRA)?
Thanks,
Alex
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http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4066216#4066216
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http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4066216
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