Re: lock operation locked more than one row issue! -- SOLVED
Re: lock operation locked more than one row issue! -- SOLVED
- Subject: Re: lock operation locked more than one row issue! -- SOLVED
- From: Chuck Hill <email@hidden>
- Date: Thu, 28 May 2009 11:12:28 -0700
On May 28, 2009, at 3:21 AM, David Avendasora wrote:
Hi Fred
Glad to hear that you have everything working!
On May 27, 2009, at 7:07 PM, Fred Wells wrote:
Two things, for some reason I thought that checking 'Generate
source' in the Table view also was for the columns as well, not so.
Also I'm not sure where the prototypes are from but the ones that
just show up in Entity Modeler have some issues specifically with
the number prototypes. Anyway after clearing those out and getting
the data types to show up correctly everything is on.
You must have the ERPrototypes framework added to your classpath.
This is what provides all the various prototypes. If you look in
your DB config, there's a place you can select the set of Prototypes
you want to use. The problem is that there isn't one that is
specifically for MSSQLServer.
I've created my own prototypes. It is simple to do and will make
your life much easier in the future - and will keep Chuck from
calling you stupid at WOWODC. :-)
Him perhaps, but not you! :-P
1) Take ERPrototypes out of your project's build path.
2) Create an entity in your Model called "EOJDBCPrototypes" then add
an attribute for each prototype you want.
I'd even use the same names as the WOnder ones you were using, just
change the external type to match SQLServer's. For example, I use
NVARCHAR instead of VARCHAR beause it is MSSQLServer's data type
that can store unicode strings without conversion.
At some point we should add MSSQLServer prototypes to ERPrototypes,
I'll look into it after WOWODC. Any chance you are going to be there?
thanks everybody.
Those of us afflicted with MSSQLServer need to stick together.
Thankfully Chuck is so afflicted (ha ha Chuck!).
David, David, David. Had I not told you? The Powers That Be on my
project have decreed that we no longer have to target The Accursed
Database (formerly known as SQL Server). This was followed by much
rejoicing and deleting of odious Accursed Database Hacks.
I find using MSSQLServer with WebObjects to be similar to Vertical
Inheritance in that it should work in theory and usually does at
first, but then the more you dig into it you start to find things
that just don't work quite as you'd expect and since most people on
the list don't use it, there are obscure bugs lurking waiting to
bite you.
Amen.
If you are not using Chuck's MSSQLServerPlugIn, You will want to,
otherwise you are going to end up with intermittent FK-constraint
errors. Even if you haven't yet, you will. Use it.
Yes.
You can find it here: http://www.gvcsitemaker.com/chill/ms_sql_server_eof_plugin
Dave
Chuck
Frederick Wells
MarketForward, a Publicis Groupe Company
427 South LaSalle St.
Chicago, Il 60605
312.220.3056
-----David Avendasora <email@hidden> wrote: -----
To: Fred Wells <email@hidden>
From: David Avendasora <email@hidden>
Date: 05/27/2009 03:33PM
cc: Development WebObjects <email@hidden>
Subject: Re: lock operation locked more than one row issue!
What ERPrototypes are you using? There is no set of MSSQLServer
Prototypes, and the JDBC define java.lang.Integer attributes (id,
intNumber, intBoolean, etc) as having an external type of INTEGER,
which is not what SQL Server calls an Integer data type. It uses
'int'.
Maybe that's it?
Dave
On May 27, 2009, at 3:18 PM, Fred Wells wrote:
Here is one of my plist:
{
attributes = (
{
allowsNull = Y;
columnName = duration;
name = duration;
prototypeName = intNumber;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = durationIsDays;
name = durationIsDays;
prototypeName = charFlag;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = N;
name = id;
prototypeName = id;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = idForTemplate;
name = idForTemplate;
prototypeName = intNumber;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = instruction;
name = instruction;
prototypeName = varchar255;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = isActive;
name = isActive;
prototypeName = charFlag;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = isFirstTask;
name = isFirstTask;
prototypeName = charFlag;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = isLastTask;
name = isLastTask;
prototypeName = charFlag;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = name;
name = name;
prototypeName = varchar100;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = N;
columnName = phaseID;
name = phaseID;
prototypeName = id;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = taskID;
name = taskID;
prototypeName = id;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = taskID1;
name = taskID1;
prototypeName = id;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = taskID2;
name = taskID2;
prototypeName = id;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = N;
columnName = taskTypeID;
name = taskTypeID;
prototypeName = id;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = threshold;
name = threshold;
prototypeName = intNumber;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = thresholdIsDays;
name = thresholdIsDays;
prototypeName = charFlag;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = workflowTemplateID;
name = workflowTemplateID;
prototypeName = id;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = N;
columnName = workgroupID;
name = workgroupID;
prototypeName = id;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = xCoordinate;
name = xCoordinate;
prototypeName = intNumber;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
},
{
allowsNull = Y;
columnName = yCoordinate;
name = yCoordinate;
prototypeName = intNumber;
userInfo = {"_EntityModeler" = {generateSource =
NO; }; };
}
);
attributesUsedForLocking = (
duration,
durationIsDays,
id,
idForTemplate,
instruction,
isActive,
isFirstTask,
isLastTask,
name,
phaseID,
taskID,
taskID1,
taskID2,
taskTypeID,
threshold,
thresholdIsDays,
workflowTemplateID,
workgroupID,
xCoordinate,
yCoordinate
);
className = "com.marketforward.mundo.data.TemplateTask";
classProperties = (
destinationApprovalTasks,
destinationRejectTasks,
destinationTasks,
duration,
durationIsDays,
idForTemplate,
instruction,
isActive,
isFirstTask,
isLastTask,
name,
phase,
sourceApprovalTask,
sourceRejectTask,
sourceTask,
taskType,
threshold,
thresholdIsDays,
workflowTemplate,
workgroup,
xCoordinate,
yCoordinate
);
externalName = TemplateTask;
fetchSpecificationDictionary = {};
name = TemplateTask;
parent = Task;
primaryKeyAttributes = (id);
relationships = (
{
destination = Task;
isToMany = Y;
joinSemantic = EOInnerJoin;
joins = ({destinationAttribute = taskID2;
sourceAttribute = id; });
name = destinationApprovalTasks;
},
{
destination = Task;
isToMany = Y;
joinSemantic = EOInnerJoin;
joins = ({destinationAttribute = taskID1;
sourceAttribute = id; });
name = destinationRejectTasks;
},
{
destination = Task;
isToMany = Y;
joinSemantic = EOInnerJoin;
joins = ({destinationAttribute = taskID;
sourceAttribute = id; });
name = destinationTasks;
},
{
destination = Phase;
isMandatory = Y;
isToMany = N;
joinSemantic = EOInnerJoin;
joins = ({destinationAttribute = id; sourceAttribute =
phaseID; });
name = phase;
},
{
destination = Task;
isToMany = N;
joinSemantic = EOInnerJoin;
joins = ({destinationAttribute = id; sourceAttribute =
taskID2; });
name = sourceApprovalTask;
},
{
destination = Task;
isToMany = N;
joinSemantic = EOInnerJoin;
joins = ({destinationAttribute = id; sourceAttribute =
taskID1; });
name = sourceRejectTask;
},
{
destination = Task;
isToMany = N;
joinSemantic = EOInnerJoin;
joins = ({destinationAttribute = id; sourceAttribute =
taskID; });
name = sourceTask;
},
{
destination = TaskType;
isMandatory = Y;
isToMany = N;
joinSemantic = EOInnerJoin;
joins = ({destinationAttribute = id; sourceAttribute =
taskTypeID; });
name = taskType;
},
{
destination = WorkflowTemplate;
isToMany = N;
joinSemantic = EOInnerJoin;
joins = ({destinationAttribute = id; sourceAttribute =
workflowTemplateID; });
name = workflowTemplate;
},
{
destination = Workgroup;
isMandatory = Y;
isToMany = N;
joinSemantic = EOInnerJoin;
joins = ({destinationAttribute = id; sourceAttribute =
workgroupID; });
name = workgroup;
}
);
}
Frederick Wells
MarketForward, a Publicis Groupe Company
427 South LaSalle St.
Chicago, Il 60605
312.220.3056
-----David Avendasora < email@hidden > wrote: -----
To: Fred Wells < email@hidden >
From: David Avendasora < email@hidden >
Date: 05/27/2009 01:53PM
cc: Chuck Hill < email@hidden >, Development
WebObjects < email@hidden >
Subject: Re: lock operation locked more than one row issue!
Hi Fred,
On May 27, 2009, at 2:29 PM, Fred Wells wrote:
OK, so after trying several different drivers and all throw some
type of locking error either lock failed to retrieve any rows or
lock operation locked more than one row. Right now I'm just
looking for any more ideas as to where look for a possible cause
on this. The EOModel files seem to be fine I can't find anythign
out of the ordinary I'm not sure where else to look or if there
are any parameters that can be changed to alter how locking is
handled.
Are you saying you looked at the EOModel's plist files?
If not, can you paste the contents of that entity's .plist file
here? You said you had been using Vertical Inheritance at one
point. I have seen stuff get left over in the .plist even when the
Entity Modeler UI doesn't show it.
Dave
Frederick Wells
MarketForward, a Publicis Groupe Company
427 South LaSalle St.
Chicago, Il 60605
312.220.3056
-----Chuck Hill < email@hidden > wrote: -----
To: Guido Neitzer < email@hidden >
From: Chuck Hill < email@hidden >
Date: 05/26/2009 07:18PM
cc: Development WebObjects < email@hidden >,
Fred Wells < email@hidden >
Subject: Re: lock operation locked more than one row issue!
On May 26, 2009, at 5:13 PM, Guido Neitzer wrote:
> On May 26, 2009, at 1:37 PM, Chuck Hill wrote:
>
>> I am not sure what you have done then. The problem is not
that it
>> is selecting multiple rows. The problem is that it is trying to
>> lock rows:
>>
>>> > > SELECT ... FROM TemplateTask t0 WITH (UPDLOCK, ROWLOCK)"
>>
>>
>> EOF should not be doing that, that is optimistic^H^H^H^H^H^H^H^
>> pessimistic locking. Something has confused EOF which causes
it to
>> do this (it is a bug).
>
> Do you have to tell the plugin that explicitly? Never used MS
SQL.
No, you don't. It is bad, but not that bad. ;-)
Chuck
--
Chuck Hill Senior Consultant / VP Development
Come to WOWODC'09 in San Fran this June!
http://www.wocommunity.org/wowodc09/
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Chuck Hill Senior Consultant / VP Development
Come to WOWODC'09 in San Fran this June!
http://www.wocommunity.org/wowodc09/
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