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Groups > comp.lang.java.databases > #339 > unrolled thread

Generating the Entity Cla

Started by"Thufir" <thufir@THRWHITE.remove-dii-this>
First post2011-04-27 15:23 +0000
Last post2011-04-27 15:23 +0000
Articles 6 — 3 participants

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  Generating the Entity Cla "Thufir" <thufir@THRWHITE.remove-dii-this> - 2011-04-27 15:23 +0000
    Re: Generating the Entity "=?UTF-8?B?QXJuZSBWYWpow7h" <=?utf-8?b?qxjuzsbwywpow7h@THRWHITE.remove-dii-this> - 2011-04-27 15:23 +0000
      Re: Generating the Entity "Thufir" <thufir@THRWHITE.remove-dii-this> - 2011-04-27 15:23 +0000
        Re: Generating the Entity "=?UTF-8?B?QXJuZSBWYWpow7h" <=?utf-8?b?qxjuzsbwywpow7h@THRWHITE.remove-dii-this> - 2011-04-27 15:23 +0000
          Re: Generating the Entity "Lew" <lew@THRWHITE.remove-dii-this> - 2011-04-27 15:23 +0000
            Re: Generating the Entity "=?UTF-8?B?QXJuZSBWYWpow7h" <=?utf-8?b?qxjuzsbwywpow7h@THRWHITE.remove-dii-this> - 2011-04-27 15:23 +0000

#339 — Generating the Entity Cla

From"Thufir" <thufir@THRWHITE.remove-dii-this>
Date2011-04-27 15:23 +0000
SubjectGenerating the Entity Cla
Message-ID<%35Sk.4261$9Z6.119@newsfe01.iad>
  To: comp.lang.java.databases
I'm just doing some basic, introductory servlet web app stuff.  I'm 
connecting to a remote Microsoft SQL 2005 server, which I connect to
with:

driver:  com.microsoft.sqlserver.jdbc.SQLServerDriver
"url":   jdbc:sqlserver://foo.com


The db shows in the netbeans IDE, and I can add tables, etc, through
NetBeans.


Here's the manual which I'm referencing for generating the
bean which corresponds to the table:

# In the Projects window, right-click the ConsultingAgency node, and 
choose New > Entity Classes from Database.
# Select New Data Source from the Data Source drop-down list to open the 
Create Data Source dialog.
# Type jdbc/consult as the JNDI Name and select jdbc:derby://
localhost:1527/consult [consult on CONSULT] as the Database Connection. 
Click OK to close the dialog box and return to the wizard.

http://www.netbeans.org/kb/61/web/jsf-jpa-crud-wizard.html#03



However, I know nothing beyond wikipedia about JNDI 

What do I enter in the JNDI field?  This seems to lead into EJB
territory, which I'll stay out of for the time being.

I tried entering jdbc/myWebApp as the JNDI name, which sorta-kinda worked.
This allowed me to see some tables.  (Some were tables were greyed out
an unknown reason.)  I then use the TOP<something or other> from Oracle,
and an entity class *was* created automagically.  However, it failed to
compile.

Rather than deal with why it failed to compile, I thought I'd ask for
some general info about the process of generating an entity class (bean?)
automagically from within NB.

I'll keep looking for tutorials similar to the one referenced above for
context.




thanks,

Thufir

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#340 — Re: Generating the Entity

From"=?UTF-8?B?QXJuZSBWYWpow7h" <=?utf-8?b?qxjuzsbwywpow7h@THRWHITE.remove-dii-this>
Date2011-04-27 15:23 +0000
SubjectRe: Generating the Entity
Message-ID<4918ec9e$0$90266$14726298@news.sunsite.dk>
In reply to#339
  To: comp.lang.java.databases
Thufir wrote:
> I'm just doing some basic, introductory servlet web app stuff.  I'm 
> connecting to a remote Microsoft SQL 2005 server, which I connect to
> with:
> 
> driver:  com.microsoft.sqlserver.jdbc.SQLServerDriver
> "url":   jdbc:sqlserver://foo.com
> 
> 
> The db shows in the netbeans IDE, and I can add tables, etc, through
> NetBeans.
> 
> Here's the manual which I'm referencing for generating the
> bean which corresponds to the table:
> 
> # In the Projects window, right-click the ConsultingAgency node, and 
> choose New > Entity Classes from Database.
> # Select New Data Source from the Data Source drop-down list to open the 
> Create Data Source dialog.
> # Type jdbc/consult as the JNDI Name and select jdbc:derby://
> localhost:1527/consult [consult on CONSULT] as the Database Connection. 
> Click OK to close the dialog box and return to the wizard.
> 
> http://www.netbeans.org/kb/61/web/jsf-jpa-crud-wizard.html#03
> 
> However, I know nothing beyond wikipedia about JNDI 
> 
> What do I enter in the JNDI field?  This seems to lead into EJB
> territory, which I'll stay out of for the time being.
> 
> I tried entering jdbc/myWebApp as the JNDI name, which sorta-kinda worked.
> This allowed me to see some tables.  (Some were tables were greyed out
> an unknown reason.)

I think that wizard is EJB specific.

You can use JPA in non-EJB context though.

See:
 
http://en.wikibooks.org/wiki/Java_Persistence/Runtime#Java_Standard_Edition

Arne

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#341 — Re: Generating the Entity

From"Thufir" <thufir@THRWHITE.remove-dii-this>
Date2011-04-27 15:23 +0000
SubjectRe: Generating the Entity
Message-ID<gnmSk.3532$Gm3.3492@newsfe01.iad>
In reply to#340
  To: comp.lang.java.databases
On Mon, 10 Nov 2008 21:23:30 -0500, Arne Vajh|+j wrote:


> I think that wizard is EJB specific.
> 
> You can use JPA in non-EJB context though.
> 
> See:
>  
> http://en.wikibooks.org/wiki/Java_Persistence/
Runtime#Java_Standard_Edition



I'll read up, however it seems a bit of a daunting task.  Any pointers?  
Perhaps I'm not asking the right question(s)?



thanks,

Thufir

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#342 — Re: Generating the Entity

From"=?UTF-8?B?QXJuZSBWYWpow7h" <=?utf-8?b?qxjuzsbwywpow7h@THRWHITE.remove-dii-this>
Date2011-04-27 15:23 +0000
SubjectRe: Generating the Entity
Message-ID<4919fd3f$0$90274$14726298@news.sunsite.dk>
In reply to#341
  To: comp.lang.java.databases
Thufir wrote:
> On Mon, 10 Nov 2008 21:23:30 -0500, Arne Vajh|+j wrote:
> 
> 
>> I think that wizard is EJB specific.
>>
>> You can use JPA in non-EJB context though.
>>
>> See:
>>  
>> http://en.wikibooks.org/wiki/Java_Persistence/Runtime#Java_Standard_Edition
> 
> I'll read up, however it seems a bit of a daunting task.  Any pointers?  
> Perhaps I'm not asking the right question(s)?

The example looks simple to me.

Arne

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#343 — Re: Generating the Entity

From"Lew" <lew@THRWHITE.remove-dii-this>
Date2011-04-27 15:23 +0000
SubjectRe: Generating the Entity
Message-ID<gfd7jt$o8q$1@aioe.org>
In reply to#342
  To: comp.lang.java.databases
Arne Vajh|+j wrote:
> Thufir wrote:
>> On Mon, 10 Nov 2008 21:23:30 -0500, Arne Vajh|+j wrote:
>>
>>
>>> I think that wizard is EJB specific.
>>>
>>> You can use JPA in non-EJB context though.
>>>
>>> See:
>>>  
>>> http://en.wikibooks.org/wiki/Java_Persistence/Runtime#Java_Standard_Edition 
>>>
>>
>> I'll read up, however it seems a bit of a daunting task.  Any 
>> pointers?  Perhaps I'm not asking the right question(s)?
> 
> The example looks simple to me.

I've been studying JPA for a while, and it is a bit of a bear to set up, but 
not really very difficult.  You set up an XML file to define a data source, 
defining the JNDI name as the glue between the different parts of the 
application.  Then you annotate the entity classes, throw in an EntityManager 
and Bob's your uncle.

-- 
Lew

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#344 — Re: Generating the Entity

From"=?UTF-8?B?QXJuZSBWYWpow7h" <=?utf-8?b?qxjuzsbwywpow7h@THRWHITE.remove-dii-this>
Date2011-04-27 15:23 +0000
SubjectRe: Generating the Entity
Message-ID<491a3788$0$90273$14726298@news.sunsite.dk>
In reply to#343
  To: comp.lang.java.databases
Lew wrote:
> Arne Vajh|+j wrote:
>> Thufir wrote:
>>> On Mon, 10 Nov 2008 21:23:30 -0500, Arne Vajh|+j wrote:
>>>> I think that wizard is EJB specific.
>>>>
>>>> You can use JPA in non-EJB context though.
>>>>
>>>> See:
>>>>  
>>>> http://en.wikibooks.org/wiki/Java_Persistence/Runtime#Java_Standard_Edition 
>>>>
>>>
>>> I'll read up, however it seems a bit of a daunting task.  Any 
>>> pointers?  Perhaps I'm not asking the right question(s)?
>>
>> The example looks simple to me.
> 
> I've been studying JPA for a while, and it is a bit of a bear to set up, 
> but not really very difficult.  You set up an XML file to define a data 
> source, defining the JNDI name as the glue between the different parts 
> of the application.  Then you annotate the entity classes, throw in an 
> EntityManager and Bob's your uncle.

Except that in Java SE context you do not use JNDI.

Which was what this thread started with.

Arne

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