StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POproblem with JNDI
primarykey
Id
4545593
data
AcceptedAnswerId
4546837
AnswerCount
3
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2010-12-28T11:13:54.817
FavoriteCount
0
LastActivityDate
2010-12-28T14:47:17.360
LastEditDate
2010-12-28T12:56:11.617
LastEditorUserId
95624
OwnerUserId
552402
ParentId
0
PostTypeId
1
Score
1
ViewCount
3741
LastEditorDisplayName
text
Body
I have code which uses JNDI.The code snippet as as follows: <pre><code>EntityManager createEM(String JNDI ){ EntityManager em = null; try{ InitialContext ic = new InitialContext(); em = (EntityManager) ic.lookup(JNDI); return em; } catch (Exception ex){ LOG.Error("error in creating em"); ex.printStackTrace(); } } </code></pre> Now i get error .The control enters catch block. <pre><code>javax.naming.NameNotFoundException: Name comp/env/persistence not found in context "java:". [12/28/10 15:51:07:086 GMT+05:30] 00000081 SystemErr R at com.ibm.ws.naming.ipbase.NameSpace.getParentCtxInternal(NameSpace.java:1837) [12/28/10 15:51:07:086 GMT+05:30] 00000081 SystemErr R at com.ibm.ws.naming.ipbase.NameSpace.lookupInternal(NameSpace.java:1166) [12/28/10 15:51:07:086 GMT+05:30] 00000081 SystemErr R at com.ibm.ws.naming.ipbase.NameSpace.lookup(NameSpace.java:1095) [12/28/10 15:51:07:086 GMT+05:30] 00000081 SystemErr R at com.ibm.ws.naming.urlbase.UrlContextImpl.lookup(UrlContextImpl.java:1233) [12/28/10 15:51:07:086 GMT+05:30] 00000081 SystemErr R at com.ibm.ws.naming.java.javaURLContextImpl.lookup(javaURLContextImpl.java:394) [12/28/10 15:51:07:086 GMT+05:30] 00000081 SystemErr R at com.ibm.ws.naming.java.javaURLContextRoot.lookup(javaURLContextRoot.java:214) [12/28/10 15:51:07:086 GMT+05:30] 00000081 SystemErr R at com.ibm.ws.naming.java.javaURLContextRoot.lookup(javaURLContextRoot.java:154) [12/28/10 15:51:07:086 GMT+05:30] 00000081 SystemErr R at javax.naming.InitialContext.lookup(Unknown Source) </code></pre> I have 2 projects say A and B.Now project B has the above method and from project A i am calling mehod from project B.persistent.xml is presnt only in project A.Do i need to place persistent.xml in project A too?I also get the folloing as a part of exception <pre><code> javax.naming.NameNotFoundException: Name comp/env/persistence not found in context "java:". </code></pre> What may be the cause.Am using websphere.
Tags
<java><websphere><jndi>
Title
problem with JNDI
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USm_vitaly
UserOwnerUserId
1. USakshay
plurals
PostLinksPostIdRelatedPostId
1. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
PostLinksRelatedPostIdPostId
1. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
3. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.