Nabble - iBATIS - Dev

Re: Ibatis with my own pool

2009-11-26T08:25:31Z

This does not belong on the development list. Please move the conversation to the users list and don't post the same question on multiple lists.

On Thu, Nov 26, 2009 at 8:18 AM, Kambix <kambiz.tavakoli@...> wrote:

Hi,

the <dataSource type="SIMPLE"> uses the iBATIS built-in Connection Pool.

You can use
<dataSource type="DBCP"> for jakarta commons database connection pool
or
<dataSource type="JNDI"> if you have a Container-based data source located
via JNDI

--
kambiz

Jeremy Jardin wrote:
>
> This is the part of my config file I'd like to change :
>
> <transactionManager type="JDBC">
> <dataSource type="SIMPLE">
> <property name="JDBC.Driver" value="${driver}" />
> <property name="JDBC.ConnectionURL" value="${url}" />
> <property name="JDBC.Username" value="${username}" />
> <property name="JDBC.Password" value="${password}" />
> <property name="JDBC.DefaultAutoCommit" value="true" />
> </dataSource>
> </transactionManager>
>
> I don't want to use that datasource, i just want to connect my common pool
> I set
> as the connectionUrl..
>
>
>
>
> Jeremy Jardin wrote:
>>
>> Hi,
>>
>> I'd like toconfigure ibatis with my own connection pool, so I set my pool
>> as the connnectionUrl in the sqlMapConfig.xml file.
>> But, unfortunately, it seems that ibatis still use his own pool ?
>> Can I disable the ibatis pool ?
>>
>>
>> Thx,
>>
>> Jeremy
>>
>
>

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Re: Ibatis with my own pool

2009-11-26T07:18:02Z

Hi,

the <dataSource type="SIMPLE"> uses the iBATIS built-in Connection Pool.

You can use
<dataSource type="DBCP"> for jakarta commons database connection pool
or
<dataSource type="JNDI"> if you have a Container-based data source located via JNDI

--
kambiz

This is the part of my config file I'd like to change :

<transactionManager type="JDBC">
<dataSource type="SIMPLE">
<property name="JDBC.Driver" value="${driver}" />
<property name="JDBC.ConnectionURL" value="${url}" />
<property name="JDBC.Username" value="${username}" />
<property name="JDBC.Password" value="${password}" />
<property name="JDBC.DefaultAutoCommit" value="true" />
</dataSource>
</transactionManager>

I don't want to use that datasource, i just want to connect my common pool I set
as the connectionUrl..

Jeremy Jardin wrote:

Hi,

I'd like toconfigure ibatis with my own connection pool, so I set my pool as the connnectionUrl in the sqlMapConfig.xml file.
But, unfortunately, it seems that ibatis still use his own pool ?
Can I disable the ibatis pool ?

Thx,

Jeremy

Re: Ibatis with my own pool

2009-11-26T06:42:40Z

This is the part of my config file I'd like to change :

<transactionManager type="JDBC">
<dataSource type="SIMPLE">
<property name="JDBC.Driver" value="${driver}" />
<property name="JDBC.ConnectionURL" value="${url}" />
<property name="JDBC.Username" value="${username}" />
<property name="JDBC.Password" value="${password}" />
<property name="JDBC.DefaultAutoCommit" value="true" />
</dataSource>
</transactionManager>

I don't want to use that datasource, i just want to connect my common pool I set
as the connectionUrl..

Jeremy Jardin wrote:

Hi,

I'd like toconfigure ibatis with my own connection pool, so I set my pool as the connnectionUrl in the sqlMapConfig.xml file.
But, unfortunately, it seems that ibatis still use his own pool ?
Can I disable the ibatis pool ?

Thx,

Jeremy

Ibatis with my own pool

2009-11-26T01:23:22Z

Hi,

I'd like toconfigure ibatis with my own connection pool, so I set my pool as the connnectionUrl in the sqlMapConfig.xml file.
But, unfortunately, it seems that ibatis still use his own pool ?
Can I disable the ibatis pool ?

Thx,

Jeremy

Ibatis with my own pool

2009-11-26T01:02:30Z

Hi,

I'm trying to use Ibatis with my own pool, and I don't want ibatis to handle it itself.
So, in the sqlmapConfig.xml file, I set the URL of my common pool.

But, I can see that ibatis still manage my connections, and I can't close it explicitely ?
What could I do ?

Thx,

Jeremy

Ibatis with my own pool

2009-11-26T00:59:20Z

Ibatis with my own pool

2009-11-26T00:58:27Z

[iBatis 3] Cache troubles

2009-11-17T12:23:14Z

Hi all guys,
I've been doing some experiment using the last beta of iBatis 3 and
I've the feeling you happily fixed the inglorious IBATIS-555 issue
about the CacheKey unique hashcode generation on different JVMs :)

Now I've been porting my old stuff to the new iBatis implementation
and everything has worked fine until I plugged-in the cache, I really
hope you can help me to understand where I'm wrong: I implemented a
Memcached-based Cache class, wrapping the spy memcached client
(code.google.com/p/spymemcached/), injecting a singleton instance to
the Configuration programmatically using google-guice 2 and finally
referenced in the sql-map via the snippet:

<cache-ref namespace="memcached"/>

What I noticed, reading the logs, is the following:
* when flushing the statements defined in the sql map, is called the
method org.apache.ibatis.cache.Cache#clear(): that makes me a little
worried, because in a memcached context I ideally want to use just one
memcached client instance and reference it in the whole application,
when performing an insert operation I wouldn't flush the whole cache,
but rather remove only the interested statements; since I'm still used
to the old iBatis2 cache model, how can I fix it?
* no data is cached, the method
org.apache.ibatis.cache.Cache#putObject(Object,Object) is never
called;

All the code I've been producing is public, you can find it on
google-code[1], and on the test directory you can find the scenario[2]
I described

Thanks in advance for your help, any kind of suggestion will be very
appreciated!!!
Simone

[1] http://code.google.com/p/ibaguice/source/browse/#svn/trunk
[2] http://code.google.com/p/ibaguice/source/browse/trunk/src/test/java/com/ibaguice/SimpleTestCase.java
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http://www.google.com/profiles/simone.tripodi

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Bug IBATIS-679

2009-11-03T11:49:59Z

Hi,

The correction made to bug https://issues.apache.org/jira/browse/IBATIS-679 is not appropriate in BETA 5.

It enters an infinite loop when 2 resultMap point to each other with discrimator tags.

For example :

    <resultMap id="personMap" type="Person">
        <id property="id" column="id"/>
        <result property="firstName" column="firstName"/>
        <result property="lastName" column="lastName"/>
        <discriminator column="personType" javaType="String">
            <case value="EmployeeType" resultMap="employeeMap"/>
        </discriminator>
    </resultMap>
    <resultMap id="employeeMap" type="Employee" extends="personMap">
        <result property="jobTitle" column="jobTitle"/>
        <discriminator column="employeeType" javaType="String">
            <case value="PersonType" resultMap="personMap"/>
        </discriminator>
    </resultMap>

And a select that returns 'EmployeeType' as personType and 'PersonType' as employeeType.

I've also proposed a correction for this bug.

Is it possible to reopen the bug and apply the patch?

Thanks.

Christian

Default value for nested property: #query.maxResults:int:0#

2009-10-10T15:27:55Z

I am having some difficulties trying to set a default for a nested property. I basically have a a query object that contains a maxResults property and I pass this query object in a Map to the query. My query contains:

#query.maxResults:int:0#

When query is null, I am seeing a null value being passed and not 0. Am I missing something or is this as designed?

Thanks in advance,

Caching improvements

2009-10-03T11:27:56Z

Hi all folks,
I've been successfully using iBatis2 for 2 years - I'll never find the
right word to express my gratefulness to iBatis community to have
created such a powerful tool - and I'd like now to contribute sharing
with you some cache issues I've been finding. Since I already happily
contributed to Apache Cocoon3, I hope I'll be able to give my
contributions also to this fantastic project :)

Let me introduce the scenario: I realized a RESTful webservices using
Jersey and iBatis for a customer client, who asked me to replicate the
application on more than one tomcat and using a cache backend,
specifically Memcached; so, I implemented a proper
com.ibatis.sqlmap.engine.cache.CacheController wrapping the spy
memcached client (code.google.com/p/spymemcached/). With this
architecture I got 2 problems:

1) Null objects: once put the NULL_OBJECT (declared on
com.ibatis.sqlmap.engine.cache.CacheModel in line 39) to Memcached,
when retrieved the comparison

value != NULL_OBJECT (declared on
com.ibatis.sqlmap.engine.cache.CacheModel#getObject(CacheKey) line
267)

doesn't work anymore because the JVM lost the reference :( I resolved
by patching this class, modifying the code in this way:

!NULL.equals(value)

I know that in a easier scenario it is less efficent, but in that way
it works for all cases.

2) Cache key generation: I found an already open issue on Jira
(https://issues.apache.org/jira/browse/IBATIS-555), I got exacly the
same problem because the application replication on different servers.
I'd like to know exactly which objects are involved, so I'm able to
patch the code.

I thanks everyone can help me, I'll provide a patch on Jira as soon as
I'll finish the tests.
Have a nice weekend!!! Best regards,
Simone

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Re: Programmatically add a statement

2009-09-28T01:38:19Z

Thanks, I'll do this.

2009/9/28 Clinton Begin <clinton.begin@...>

You should probably post this to the user list, rather than the dev list. There's more people on it, and it will also make it clear which version you're using. Scanning this thread I see references to both Java and .NET...

Clinton

On Mon, Sep 28, 2009 at 2:01 AM, Joseph Piron <joseph.piron@...> wrote:

No one knows how to do this ?
I really need help as I'm rather stuck here... :)

Br all,
Joseph PIRON.

2009/9/25 Yuri de Wit <ydewit@...>

I am also interested in this. I would like to have a templatized CRUD sqlmap that can generate a final sqlmap for a specific POJO based on the POJO fields. Is creating statement dynamically something that can be done or has been done in the past?
thanks.

On Fri, Sep 25, 2009 at 4:34 AM, Joseph Piron <joseph.piron@...> wrote:

Hello Kambiz,

thanks for your answer.
Unfortunately, I'm not able to go further.
Indeed, the CachingStatement has a constructor which gets a MappedStatement as argument and I don't find the BaseStatement in the IBatisNet.DataMapper.MappedStatements namespace.
Are you sure this is not only available in Java ?
Would you have any example for me as a guideline ?

Thanks.

2009/9/25 Kambiz Tavakoli <Kambiz.Tavakoli@...>

Hello Joseph,

MappedStatement is an interface.

You can try BaseStatement or CachingStatement.

You can also use your own Class implementing the MappedStatement interface.

kambiz

Von: Joseph Piron [mailto:joseph.piron@...]
Gesendet: Donnerstag, 24. September 2009 22:03
An: dev@...
Betreff: Programmatically add a statement

Dears,

I'm looking for some information on ibatisnet api.
Indeed, I'm trying to add a statement in runtime and I haven't found enough information on how to do this... :)
I've tried the AddMappedStatement method, but the MappedStatement class doesn't seem to have a constructor..

Could someone help me ?

Thanks all!

Re: Programmatically add a statement

2009-09-28T01:03:06Z

You should probably post this to the user list, rather than the dev list. There's more people on it, and it will also make it clear which version you're using. Scanning this thread I see references to both Java and .NET...

Clinton

On Mon, Sep 28, 2009 at 2:01 AM, Joseph Piron <joseph.piron@...> wrote:

No one knows how to do this ?
I really need help as I'm rather stuck here... :)

Br all,
Joseph PIRON.

2009/9/25 Yuri de Wit <ydewit@...>

I am also interested in this. I would like to have a templatized CRUD sqlmap that can generate a final sqlmap for a specific POJO based on the POJO fields. Is creating statement dynamically something that can be done or has been done in the past?
thanks.

On Fri, Sep 25, 2009 at 4:34 AM, Joseph Piron <joseph.piron@...> wrote:

Hello Kambiz,

thanks for your answer.
Unfortunately, I'm not able to go further.
Indeed, the CachingStatement has a constructor which gets a MappedStatement as argument and I don't find the BaseStatement in the IBatisNet.DataMapper.MappedStatements namespace.
Are you sure this is not only available in Java ?
Would you have any example for me as a guideline ?

Thanks.

2009/9/25 Kambiz Tavakoli <Kambiz.Tavakoli@...>

Hello Joseph,

MappedStatement is an interface.

You can try BaseStatement or CachingStatement.

You can also use your own Class implementing the MappedStatement interface.

kambiz

Von: Joseph Piron [mailto:joseph.piron@...]
Gesendet: Donnerstag, 24. September 2009 22:03
An: dev@...
Betreff: Programmatically add a statement

Dears,

I'm looking for some information on ibatisnet api.
Indeed, I'm trying to add a statement in runtime and I haven't found enough information on how to do this... :)
I've tried the AddMappedStatement method, but the MappedStatement class doesn't seem to have a constructor..

Could someone help me ?

Thanks all!

Re: Programmatically add a statement

2009-09-28T01:01:03Z

No one knows how to do this ?
I really need help as I'm rather stuck here... :)

Br all,
Joseph PIRON.

2009/9/25 Yuri de Wit <ydewit@...>

I am also interested in this. I would like to have a templatized CRUD sqlmap that can generate a final sqlmap for a specific POJO based on the POJO fields. Is creating statement dynamically something that can be done or has been done in the past?
thanks.

On Fri, Sep 25, 2009 at 4:34 AM, Joseph Piron <joseph.piron@...> wrote:

Hello Kambiz,

thanks for your answer.
Unfortunately, I'm not able to go further.
Indeed, the CachingStatement has a constructor which gets a MappedStatement as argument and I don't find the BaseStatement in the IBatisNet.DataMapper.MappedStatements namespace.
Are you sure this is not only available in Java ?
Would you have any example for me as a guideline ?

Thanks.

2009/9/25 Kambiz Tavakoli <Kambiz.Tavakoli@...>

Hello Joseph,

MappedStatement is an interface.

You can try BaseStatement or CachingStatement.

You can also use your own Class implementing the MappedStatement interface.

kambiz

Von: Joseph Piron [mailto:joseph.piron@...]
Gesendet: Donnerstag, 24. September 2009 22:03
An: dev@...
Betreff: Programmatically add a statement

Dears,

I'm looking for some information on ibatisnet api.
Indeed, I'm trying to add a statement in runtime and I haven't found enough information on how to do this... :)
I've tried the AddMappedStatement method, but the MappedStatement class doesn't seem to have a constructor..

Could someone help me ?

Thanks all!

Re: Programmatically add a statement

2009-09-25T08:37:07Z

I am also interested in this. I would like to have a templatized CRUD sqlmap that can generate a final sqlmap for a specific POJO based on the POJO fields. Is creating statement dynamically something that can be done or has been done in the past?

thanks.

On Fri, Sep 25, 2009 at 4:34 AM, Joseph Piron <joseph.piron@...> wrote:

Hello Kambiz,

thanks for your answer.
Unfortunately, I'm not able to go further.
Indeed, the CachingStatement has a constructor which gets a MappedStatement as argument and I don't find the BaseStatement in the IBatisNet.DataMapper.MappedStatements namespace.
Are you sure this is not only available in Java ?
Would you have any example for me as a guideline ?

Thanks.

2009/9/25 Kambiz Tavakoli <Kambiz.Tavakoli@...>

Hello Joseph,

MappedStatement is an interface.

You can try BaseStatement or CachingStatement.

You can also use your own Class implementing the MappedStatement interface.

kambiz

Von: Joseph Piron [mailto:joseph.piron@...]
Gesendet: Donnerstag, 24. September 2009 22:03
An: dev@...
Betreff: Programmatically add a statement

Dears,

I'm looking for some information on ibatisnet api.
Indeed, I'm trying to add a statement in runtime and I haven't found enough information on how to do this... :)
I've tried the AddMappedStatement method, but the MappedStatement class doesn't seem to have a constructor..

Could someone help me ?

Thanks all!

Re: Programmatically add a statement

2009-09-25T01:34:51Z

Hello Kambiz,

thanks for your answer.
Unfortunately, I'm not able to go further.
Indeed, the CachingStatement has a constructor which gets a MappedStatement as argument and I don't find the BaseStatement in the IBatisNet.DataMapper.MappedStatements namespace.
Are you sure this is not only available in Java ?
Would you have any example for me as a guideline ?

Thanks.

2009/9/25 Kambiz Tavakoli <Kambiz.Tavakoli@...>

Hello Joseph,

MappedStatement is an interface.

You can try BaseStatement or CachingStatement.

You can also use your own Class implementing the MappedStatement interface.

kambiz

Von: Joseph Piron [mailto:joseph.piron@...]
Gesendet: Donnerstag, 24. September 2009 22:03
An: dev@...
Betreff: Programmatically add a statement

Dears,

I'm looking for some information on ibatisnet api.
Indeed, I'm trying to add a statement in runtime and I haven't found enough information on how to do this... :)
I've tried the AddMappedStatement method, but the MappedStatement class doesn't seem to have a constructor..

Could someone help me ?

Thanks all!

AW: Programmatically add a statement

2009-09-25T00:57:04Z

Hello Joseph,

MappedStatement is an interface.

You can try BaseStatement or CachingStatement.

You can also use your own Class implementing the MappedStatement interface.

kambiz

Von: Joseph Piron [mailto:joseph.piron@...]
Gesendet: Donnerstag, 24. September 2009 22:03
An: dev@...
Betreff: Programmatically add a statement

Dears,

I'm looking for some information on ibatisnet api.
Indeed, I'm trying to add a statement in runtime and I haven't found enough information on how to do this... :)
I've tried the AddMappedStatement method, but the MappedStatement class doesn't seem to have a constructor..

Could someone help me ?

Thanks all!

Programmatically add a statement

2009-09-24T13:02:43Z

RE: DB portability for iBatis 3 Mappers

2009-09-22T10:33:18Z

OK. Thanks Clinton. If I have any trouble doing so I will send you a note. Thanks.

Russ

From: Clinton Begin [mailto:clinton.begin@...]
Sent: Tuesday, September 22, 2009 12:31 PM
To: dev@...
Subject: Re: DB portability for iBatis 3 Mappers

Best thing to do for this is create a Jira feature request ticket.

Clinton

On Tue, Sep 22, 2009 at 10:34 AM, <russ.jackson@...> wrote:

Hey iBatis team,

The feature in iBatis 3 to use getMapper() to obtain a dynamic implementation of the DAO interface is extremely cool. However, there is one serious shortcoming – mapped statement implementations that are DB product specific/variant are not currently supported by this.

For example, say I have a couple of vendor-specific SELECT statements that represent the same query. The way one can address this situation is described in the following blog posting by Jeff Hair (who happens to be a colleague of mine): http://jshair.blogspot.com/ (scroll down to the iBatis entry)

As you can see, Jeff describes adding a base DAO class that extends Spring’s SqlMapClientDaoSupport. Inside this base class the checkMappedStatement() method manipulates the statement name to be DB product specific (based on the db metadata obtained from the db connection) and attempts to look up a mapped statement based on that name. If that fails, the original/default name is used to find the mapped statement.

What I have done is basically push a variant of the implementation that Jeff describes down into your DefaultSqlSession class to provide the capability for your dynamic mapper methods to execute overloaded, vendor-specific SQL statements - all transparent to the DAO client. (see attached – I put the new work just after your constructor)

I built the iBatis project locally and deployed it to my environment and it seems to work fine. There is one kink that still needs to be worked out – I did not put this mapped SQL overload into your MapperMethod.determineCommandType() method and as a result, the xml mapper still requires that a non-db-specific SELECT statement exists. For example, consider the following: For argument’s sake I have getAll-Oracle and getAll-HSQL mapped SELECT statements representing some SELECT statements that are, for one reason or another, vendor-specific. But, I also have to provide an undesired getAll implementation to prevent an exception in the determineCommandType() method.

<resultMap id="get-transactionType-result"

type="TransactionType">

</resultMap>

SELECT code, title

FROM transaction_type

</select>

SELECT title, code

FROM transaction_type

</select>

SELECT title, code

FROM transaction_type

</select>

</mapper>

It would be great if you could eliminate this problem/requirement if you decide to use this implementation/idea.

Also, this evening was the first time I’ve looked at your source code and I didn’t spend a lot of time with it so I just wedged this solution in where it would work – it may not fit with your overall design/architecture and I’m sure it will have to be refactored.

Thanks and keep up the great work. Please let me know if I can clarify anything or be of further assistance. I do hope to provide some feedback on your iBatis 3 user guide in the not too distant future.

Thanks again.

Russ Jackson

Accenture

Sr. Consultant

407 S. Pennsylvania Ave, Suite 201

Joplin, MO 64801

(417) 626-6524

russ.jackson@...

This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the email by you is prohibited.

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Re: DB portability for iBatis 3 Mappers

2009-09-22T10:31:08Z

Best thing to do for this is create a Jira feature request ticket.

Clinton

On Tue, Sep 22, 2009 at 10:34 AM, <russ.jackson@...> wrote:

Hey iBatis team,

The feature in iBatis 3 to use getMapper() to obtain a dynamic implementation of the DAO interface is extremely cool. However, there is one serious shortcoming – mapped statement implementations that are DB product specific/variant are not currently supported by this.

For example, say I have a couple of vendor-specific SELECT statements that represent the same query. The way one can address this situation is described in the following blog posting by Jeff Hair (who happens to be a colleague of mine): http://jshair.blogspot.com/ (scroll down to the iBatis entry)

As you can see, Jeff describes adding a base DAO class that extends Spring’s SqlMapClientDaoSupport. Inside this base class the checkMappedStatement() method manipulates the statement name to be DB product specific (based on the db metadata obtained from the db connection) and attempts to look up a mapped statement based on that name. If that fails, the original/default name is used to find the mapped statement.

What I have done is basically push a variant of the implementation that Jeff describes down into your DefaultSqlSession class to provide the capability for your dynamic mapper methods to execute overloaded, vendor-specific SQL statements - all transparent to the DAO client. (see attached – I put the new work just after your constructor)

I built the iBatis project locally and deployed it to my environment and it seems to work fine. There is one kink that still needs to be worked out – I did not put this mapped SQL overload into your MapperMethod.determineCommandType() method and as a result, the xml mapper still requires that a non-db-specific SELECT statement exists. For example, consider the following: For argument’s sake I have getAll-Oracle and getAll-HSQL mapped SELECT statements representing some SELECT statements that are, for one reason or another, vendor-specific. But, I also have to provide an undesired getAll implementation to prevent an exception in the determineCommandType() method.

<mapper namespace="com.acme.banking.persistence.dao.ITransactionTypeDao">

    <resultMap id="get-transactionType-result"

               type="TransactionType">

        <result property="code" column="code"/>

        <result property="title" column="title"/>

    </resultMap>

    <select id="getAll-HSQL" resultType="TransactionType">

        SELECT code, title

        FROM transaction_type

    </select>

    <select id="getAll-Oracle" resultType="TransactionType">

        SELECT title, code

        FROM transaction_type

    </select>

    <select id="getAll" resultType="TransactionType">

        SELECT title, code

        FROM transaction_type

    </select>

</mapper>

It would be great if you could eliminate this problem/requirement if you decide to use this implementation/idea.

Also, this evening was the first time I’ve looked at your source code and I didn’t spend a lot of time with it so I just wedged this solution in where it would work – it may not fit with your overall design/architecture and I’m sure it will have to be refactored.

Thanks and keep up the great work. Please let me know if I can clarify anything or be of further assistance. I do hope to provide some feedback on your iBatis 3 user guide in the not too distant future.

Thanks again.

Russ Jackson

Accenture

Sr. Consultant

407 S. Pennsylvania Ave, Suite 201

Joplin, MO 64801

(417) 626-6524

russ.jackson@...

This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the email by you is prohibited.

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DB portability for iBatis 3 Mappers

2009-09-22T09:34:04Z

Hey iBatis team,

<resultMap id="get-transactionType-result"

type="TransactionType">

</resultMap>

SELECT code, title

FROM transaction_type

</select>

SELECT title, code

FROM transaction_type

</select>

SELECT title, code

FROM transaction_type

</select>

</mapper>

It would be great if you could eliminate this problem/requirement if you decide to use this implementation/idea.

Thanks again.

Russ Jackson

Accenture

Sr. Consultant

407 S. Pennsylvania Ave, Suite 201

Joplin, MO 64801

(417) 626-6524

russ.jackson@...

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Parameters mapping to same Property (.Net)

2009-09-17T14:08:16Z

Why is iBatis built to only allow you to map a single column to a single property?

Say you have:

The EnteredDt get set right before Save because of a custom hook that has been added in to set the Database time into the EnteredDt before saving, so we want to use the EnteredDt property. Why would iBatis be built to build 2 arrays with the property as the key? Making it impossible to have a 2 columns mapped to the same property because the keys conflict thus the the column array is larger than the property array throwing a ArgumentOutOfRange Exception?

Is there a way around this other than checking to see if OriginalEnteredDt is empty and if it is then return EnteredDt?

Re: Ibatis Migrator using a JNDI based connection

2009-09-14T06:56:39Z

Nope, hadn't thought of that. Can you create a JIRA Feature Request so that we don't forget about it?

Cheers,

Clinton

On Mon, Sep 14, 2009 at 7:23 AM, Leandro Sales <leandro.shp@...> wrote:

Hi,

I was wondering if wasn't possible to get the connection used by Ibatis Migrator from a JNDI resource.

I'm using migrator not as command line but inside a web application. Every time I redeploy my application, a servlet is started up and tries to "up" the version of the database (using the UpCommand Class). The problem is that now I need to repeat the database config inside the migrator property file. If I could just set a jndi resource like "comp/env/jdbc/myapp" would be very nice.

I don't know if you were thinking about this kind of usage for Ibatis Migrator, but it seems to be a good idea.

Leandro

Ibatis Migrator using a JNDI based connection

2009-09-14T06:23:52Z

Hi,

I was wondering if wasn't possible to get the connection used by Ibatis Migrator from a JNDI resource.

I'm using migrator not as command line but inside a web application. Every time I redeploy my application, a servlet is started up and tries to "up" the version of the database (using the UpCommand Class). The problem is that now I need to repeat the database config inside the migrator property file. If I could just set a jndi resource like "comp/env/jdbc/myapp" would be very nice.

I don't know if you were thinking about this kind of usage for Ibatis Migrator, but it seems to be a good idea.

Leandro

Increased memory footprint while mapping explicit NULL columns of a cursor to java String property

2009-08-31T08:32:21Z

Hi,

We are seeing a weird memory issue while using IBATIS for JAVA.

We call an Oracle 10g stored proc via IBatis. The proc returns a single cursor with 10 columns.

Out of the 10 columns, 3 column has been hardcoded to NULL (for business functionality reasons) in the SELET Statement of the CURSOR.

When we set a column explicitly NULL we see that IBATIS seems to take a huge amount of memory and this leads to FULL GCs – which block our application – hence degrading its performance.

But, if we set the column to a hardcoded string value (say ‘xyz’), we don’t see this high memory usage and hence no FULL GCs and hence does not degrade our performance.

To give an idea, when the sproc is with explicit NULL, the java service that calls this proc (via ibatis) takes 10 seconds (on a 60 concurrent user load). This 10 seconds is because of multiple FULL GCs.

But, when we change to a hardcoded string ‘xyz’, we see the same service return in less 500 ms (for the same load)

Is this a bug or are we configuring ibatis the incorrect way? Any help is much appreciated.

Please note, we are a Spring 3.0 based java web app, running on Weblogic 9.2 MP3.We are using IBATIS for JAVA version 2.3.0

We have checked and ensured that our JVM settings are appropriate (around 712MB) and the amount of data returned is very little ( 2 records per call, each with 10 string columns).

Here is an example sproc and the ibatis mapping xml to illustrate our setting:

OPEN cursor FOR

SELECT

First_name as FIRSTNAME,

Last_name as LASTNAME,

NULL as DESIGNATION

FROM

EMPLOYEE

Now the resultMap would look like this:

</resultMap>

All the three java properties are of java String type.

Thanks,

Raga

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[jira] Created: (IBATISNET-293) Allow DataMapper to execute in Medium Trust environments

2009-08-19T06:52:14Z

Allow DataMapper to execute in Medium Trust environments
--------------------------------------------------------

Key: IBATISNET-293
URL: https://issues.apache.org/jira/browse/IBATISNET-293
Project: iBatis for .NET
Issue Type: Improvement
Components: DataAccess, DataMapper, Documentation, Testing
Affects Versions: DataMapper 1.6.2
Environment: ASP.net mostly, but perhaps WPF XBAP?
Reporter: Michael McCurrey

Ibatis.net isn't allowing execution in a medium trust environment. Given the popularity of this type of deployment, this is something that we should support out of the box.

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[jira] Closed: (IBATIS-438) SqlMapClient don't release connection in a clustered ejb based application

2009-08-15T06:23:14Z

[ https://issues.apache.org/jira/browse/IBATIS-438?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clinton Begin closed IBATIS-438.
--------------------------------

Resolution: Won't Fix

> SqlMapClient don't release connection in a clustered ejb based application
> --------------------------------------------------------------------------
>
> Key: IBATIS-438
> URL: https://issues.apache.org/jira/browse/IBATIS-438
> Project: iBatis for Java
> Issue Type: Bug
> Affects Versions: 2.3.0
> Environment: BEA Weblogic Server 9.2.1 Clustered, Oracle 9i, EJB 2.1, the trasaction manager type is JDBC with a JNDI Datasource type.
> Reporter: Nicola Amoruso
>
> I'm using JDBC transaction manager with very basic configuration. I do many
> database transactions as update and insert
> In every business method i call startTransaction() on SqlMapClient defined as private as instance variable into my ejb.
> At the end of my method i call commitTransaction() if the transaction end right and i call always endTransaction() in a finally block as specified in IBATIS tutorial.
> This architecture work fine in and environment without clustering, but in this last model i have a abnormal consuming of connections of weblogic connection pool with the following exception:
> com.ibatis.common.jdbc.exception.NestedSQLException:
> --- The error occurred in file: query.xml.
> --- The error occurred while executing mapped statement.
> --- Check the query.update.
> --- Check the statement or the result map.
> --- Cause: weblogic.rmi.extensions.RemoteRuntimeException: Unexpected Exception
> at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeUpdate(GeneralStatement.java:94)
> at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.update(SqlMapExecutorDelegate.java:505)
> at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.update(SqlMapSessionImpl.java:90)
> at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.update(SqlMapClientImpl.java:67)
> at it.mypkg.ejb.Business.unlockListaPersone(CqscPFBusiness.java:279)
> at it.mypkg.ejb.Business_17zvgu_EOImpl.businessMethod(Business_17zvgu_EOImpl.java:208)
> at it.mypkg.ejb.Business_17zvgu_EOImpl_WLSkel.invoke(Unknown Source)
> at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:518)
> at weblogic.rmi.cluster.ClusterableServerRef.invoke(ClusterableServerRef.java:224)
> at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:408)
> at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
> at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147)
> at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:404)
> at weblogic.rmi.internal.BasicServerRef.access$300(BasicServerRef.java:57)
> at weblogic.rmi.internal.BasicServerRef$BasicExecuteRequest.run(BasicServerRef.java:935)
> at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
> at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
> Caused by: weblogic.rmi.extensions.RemoteRuntimeException: Unexpected Exception
> at weblogic.jdbc.common.internal.RmiDataSource_920_WLStub.getConnection(Unknown Source)
> at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.init(JdbcTransaction.java:48)
> at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.getConnection(JdbcTransaction.java:89)
> at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeUpdate(GeneralStatement.java:78)
> ... 16 more
> Caused by: java.rmi.UnmarshalException: cannot unmarshaling return; nested exception is:
> java.io.NotSerializableException: weblogic.jdbc.common.internal.ConnectionEnv
> at weblogic.rmi.internal.ServerRequest.unmarshalReturn(ServerRequest.java:105)
> at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:338)
> at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:252)
> ... 20 more
> Caused by: java.io.NotSerializableException: weblogic.jdbc.common.internal.ConnectionEnv
> at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1075)
> at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1369)
> at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1341)
> at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1284)
> at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)
> at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:291)
> at weblogic.rmi.extensions.server.CBVOutputStream.writeObject(CBVOutputStream.java:84)
> at weblogic.rmi.internal.ServerRequest.unmarshalReturn(ServerRequest.java:97)
> ... 22 more
> I fix the problem adding the following code after every endTransaction() :
> sqlMapClient.getDatasource().getConnection().close().
> Thanks in advance.
> Nicola

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[jira] Closed: (IBATIS-360) iterate a property of array of objects and using isEqual tag to compare an attribute ex:(id) of this object with a value. ex: "list[].id"

2009-08-15T06:21:15Z

[ https://issues.apache.org/jira/browse/IBATIS-360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clinton Begin closed IBATIS-360.
--------------------------------

Resolution: Fixed
Fix Version/s: 2.3.4

> iterate a property of array of objects and using isEqual tag to compare an attribute ex:(id) of this object with a value. ex: "list[].id"
> -----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: IBATIS-360
> URL: https://issues.apache.org/jira/browse/IBATIS-360
> Project: iBatis for Java
> Issue Type: Bug
> Environment: JBuilder
> Reporter: marc khoury
> Fix For: 2.3.4
>
>
> <iterate property="list">
> <isEqual property="list[].id" compareValue="123">
> $list[].anotherProperty$
> </isEqual>
> </iterate>
> after running my query in ibatis that contains this mentioned part of it, i get an error on reading the property "list[].id" .
> it seems like ibatis can not read or iterate with each object inside the property of type collection to get to a specific attribute like "id" in my case.
> So is there any solution to it, or a differente writing of the property="..." inside the isEqual tag that i should follow to make it right. Please reply to me with the format of the iterate tag along with the isEqual tag in writing.
> Thank u regards, marquise

[jira] Closed: (IBATIS-299) Add a type mapper callback for java.net.URL

2009-08-15T06:21:15Z

[ https://issues.apache.org/jira/browse/IBATIS-299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clinton Begin closed IBATIS-299.
--------------------------------

Resolution: Won't Fix

> Add a type mapper callback for java.net.URL
> -------------------------------------------
>
> Key: IBATIS-299
> URL: https://issues.apache.org/jira/browse/IBATIS-299
> Project: iBatis for Java
> Issue Type: Wish
> Affects Versions: 2.1.7
> Reporter: Ken Weiner
>
> It would be nice if iBATIS came with a TypeHandlerCallback implementation for mapping URL object properties to their String representation stored in a database field. Here is some code that could be used to implement this:
> package com.ibatis.sqlmap.client.extensions;
> import java.net.MalformedURLException;
> import java.net.URL;
> import java.sql.SQLException;
> import java.sql.Types;
> /**
> * An iBATIS type handler callback for java.net.URLs that are mapped to
> * Strings in the database. If a URL cannot be constructed based on the
> * String, then the URL will be set to <code>null</code>.
> * <p>
> * @author Ken Weiner
> */
> public class UrlTypeHandlerCallback implements TypeHandlerCallback {
> public Object getResult(ResultGetter getter) throws SQLException {
> String value = getter.getString();
> if (getter.wasNull()) {
> return null;
> }
> return this.valueOf(value);
> }
> public void setParameter(ParameterSetter setter, Object parameter) throws SQLException {
> if (parameter == null) {
> setter.setNull(Types.VARCHAR);
> } else {
> URL url = (URL) parameter;
> setter.setString(url.toExternalForm());
> }
> }
> public Object valueOf(String s) {
> URL url;
> try {
> url = new URL(s);
> } catch (MalformedURLException e) {
> url = null;
> }
> return url;
> }
> }

[jira] Closed: (IBATIS-585) Expose transaction state as public API

2009-08-15T06:19:15Z

[ https://issues.apache.org/jira/browse/IBATIS-585?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clinton Begin closed IBATIS-585.
--------------------------------

Resolution: Fixed
Fix Version/s: 3.0 Beta 2

> Expose transaction state as public API
> --------------------------------------
>
> Key: IBATIS-585
> URL: https://issues.apache.org/jira/browse/IBATIS-585
> Project: iBatis for Java
> Issue Type: New Feature
> Affects Versions: 2.3.2
> Reporter: yair ogen
> Priority: Critical
> Fix For: 3.0 Beta 2
>
>
> In several times we need to check what is the transaction state in runtime to avoid nested transactions and so on.
> Please expose the Transaction State in public API s it can be evaluated in runtime.

[jira] Closed: (IBATIS-247) Triage Wish List TXT file from old doc directory

2009-08-15T06:19:15Z

[ https://issues.apache.org/jira/browse/IBATIS-247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clinton Begin closed IBATIS-247.
--------------------------------

Resolution: Fixed

> Triage Wish List TXT file from old doc directory
> ------------------------------------------------
>
> Key: IBATIS-247
> URL: https://issues.apache.org/jira/browse/IBATIS-247
> Project: iBatis for Java
> Issue Type: Task
> Reporter: Clinton Begin
>
> ------------------------------------------------------------
> Wish List
> ------------------------------------------------------------
> Ease of Use
> - Optional new line stripping
> - Cross file resource management (currently works, but order dependent --ok?)
> - Circular relationships
> - Per result Lazy Load configuration
> - Optional results/exclusions (i.e. don't require all results)
> - Automap remaining columns, ignore missing columns
> - DAO lazy initialization option (quiet failure?)
> - <generate> tag for CRUD methods (as per iBATIS.NET)
> - Improved Dynamic SQL syntax/flexibility
> - Pluggable SQL Scripting languages
> Flexibility
> - Constructor based results (not fields at this time)
> - Field based results
> - Improved configuration API and logging
> - Flush cache at specific time (e.g. 22:30)
> - Cache dependency on other cache (flush-on-dependant)
> Database Support
> - Save point support
> - Add true autocommit support (mostly for SYBASE procs)
> Database Support
> - Trim whitespace from CHAR data
> Tools
> - XDoclet/QDox Tags (@ibatis)
> - SQL Map Editor GUI
> - Ant Tasks?
> Unconfirmed
> - RowSet|ResultSet results?
> - Multiple result sets/update results
> - Get warnings (conn, ps, rs)
> - Asynchronous updates (queued)
> - Idle Connection Timeout in SimpleDataSource
> - Map with 1:M relationship with other Map? (i.e. map key contains list of other maps)
> - On-the-fly configuration reload? (out of scope? external responsibility?)
> - Cancel long running statements (cross thread)

[jira] Closed: (IBATIS-588) Please add Abator JARs to Maven repository

2009-08-15T06:19:15Z

[ https://issues.apache.org/jira/browse/IBATIS-588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clinton Begin closed IBATIS-588.
--------------------------------

Resolution: Fixed

> Please add Abator JARs to Maven repository
> -------------------------------------------
>
> Key: IBATIS-588
> URL: https://issues.apache.org/jira/browse/IBATIS-588
> Project: iBatis for Java
> Issue Type: Task
> Reporter: Sergio Moretto
> Priority: Critical
>
> Please add Abator JAR to central maven repository.
> Documente here: http://opensource.atlassian.com/confluence/oss/display/IBATIS/iBATIS+Release+Process#iBATISReleaseProcess-deployingtoibiblio

[jira] Closed: (IBATIS-533) Thread blocking on AutoResultMap

2009-08-15T06:19:14Z

[ https://issues.apache.org/jira/browse/IBATIS-533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clinton Begin closed IBATIS-533.
--------------------------------

Resolution: Fixed

> Thread blocking on AutoResultMap
> --------------------------------
>
> Key: IBATIS-533
> URL: https://issues.apache.org/jira/browse/IBATIS-533
> Project: iBatis for Java
> Issue Type: Bug
> Affects Versions: 2.3.2
> Reporter: Robert McIntosh
> Priority: Critical
>
> The AutoResultMap class' getResults method is synchronized. This causes threads to get backed up when a moderate load is on the system. The end result is that our heap gets overloaded and eventually the app stops.
> it appears from looking at the code that the synchronize only needs to be on the remapping and/or initial construction of the result mappings. Would suggest making the the initialize method synchronized at the very least, so that once the mapping is created no blocking of threads is necessary.
> May be related to issue 519 as well.

[jira] Closed: (IBATIS-449) Is there a way to specify a timeout for Pool.PingQuery when using a jdbc SimpleDataSource?

2009-08-15T06:19:14Z

[ https://issues.apache.org/jira/browse/IBATIS-449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clinton Begin closed IBATIS-449.
--------------------------------

Resolution: Invalid

> Is there a way to specify a timeout for Pool.PingQuery when using a jdbc SimpleDataSource?
> ------------------------------------------------------------------------------------------
>
> Key: IBATIS-449
> URL: https://issues.apache.org/jira/browse/IBATIS-449
> Project: iBatis for Java
> Issue Type: Improvement
> Environment: Red Hat Enterprise Linux 4 Update 5 x86-64, JBOSS 4.0.5
> Reporter: Anton Rothenbacher
> Priority: Critical
> Attachments: SimpleDataSource.java
>
>
> It seems there is no way to specify a timeout when implementing the Pool.PingQuery to test pooled connections before use. We are in an environment that is closing connections on us and when the app is inactive for a long time, the first connection to be tested out of the pool is bad, and it takes 15 minutes before the connection is deemed bad and the connection recycled.
> 2007-08-11 06:38:14,032 DEBUG [com.ibatis.common.jdbc.SimpleDataSource] Checked out connection 2865240 from pool.
> 2007-08-11 06:38:14,032 DEBUG [com.ibatis.common.jdbc.SimpleDataSource] Testing connection 2865240 ...
> .....
> 2007-08-11 06:53:40,695 WARN [com.ibatis.common.jdbc.SimpleDataSource] Execution of ping query 'select 1 from DUAL' failed: Io exception: Connection timed out
> 2007-08-11 06:53:40,695 DEBUG [com.ibatis.common.jdbc.SimpleDataSource] Connection 2865240 is BAD: Io exception: Connection timed out
> 2007-08-11 06:53:40,696 DEBUG [com.ibatis.common.jdbc.SimpleDataSource] A bad connection (2865240) was returned from the pool, getting another connection.
> 2007-08-11 06:53:40,750 DEBUG [com.ibatis.common.jdbc.SimpleDataSource] Created connection 10545003.
> This is a problem since the app hangs for the time when it is waiting for the connection. We are looking for a way to speed up the PingQuery test so that if it does not respond in x seconds, (it is a very fast query) then recycle the connection right away, not 15min later when the connection times out.
> Here is the relevent section from our SqlMapConfig.xml
> 
> <transactionManager type="JDBC" commitRequired="true">
> <dataSource type="SIMPLE">
> <property name="JDBC.Driver" value="${driver}"/>
> <property name="JDBC.ConnectionURL" value="${url}"/>
> <property name="JDBC.Username" value="${username}"/>
> <property name="JDBC.Password" value="${password}"/>
> <property name="JDBC.DefaultAutoCommit" value="${jdbc.default.auto.commit}" />
> <property name="Pool.MaximumActiveConnections" value="${pool.maximum.active.connections}"/>
> <property name="Pool.MaximumIdleConnections" value="${pool.maximum.idle.connections}"/>
> <property name="Pool.MaximumCheckoutTime" value="${pool.maximum.checkout.time}"/>
> <property name="Pool.TimeToWait" value="${pool.time.to.wait}"/>
> <property name="Pool.PingQuery" value="select 1 from DUAL"/>
> <property name="Pool.PingEnabled" value="true"/>
> <property name="Pool.PingConnectionsOlderThan" value="1"/>
> <property name="Pool.PingConnectionsNotUsedFor" value="1"/>
> </dataSource>
> </transactionManager>
> Is DBCP type connection better for what we wish to accomplish? It seems it can test connections idle connections out of the pool on a regular basis but as far as I can tell SimpleDataSource can only test connections as they are requested out of the pool. Am I correct, does anyone have any suggestions?
> Thanks much for your time!

[jira] Closed: (IBATIS-581) Drive-by foot-shooting on petstore.html page

2009-08-15T06:17:14Z

[ https://issues.apache.org/jira/browse/IBATIS-581?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clinton Begin closed IBATIS-581.
--------------------------------

Resolution: Won't Fix

> Drive-by foot-shooting on petstore.html page
> --------------------------------------------
>
> Key: IBATIS-581
> URL: https://issues.apache.org/jira/browse/IBATIS-581
> Project: iBatis for Java
> Issue Type: Bug
> Components: Documentation
> Environment: Firefox 3.0.6 / Mac
> Reporter: Kevin Murphy
> Priority: Minor
>
> http://ibatis.apache.org/petstore.html doesn't seem to be worth much. I was looking for a download of JPetStore, and Google directed me to this page.
> 1) I expected the "Demo" image to be a button, but it isn't.
> 2) There's no link to a download on this page.
> Every little obstacle like this affects uptake. Obviously I can go find the download, but I just thought I'd report the foot-shooting.