Re: Question on dynamic Select Columns
Hey Ritu, The dynamic tags examine the parameterMap or parameterClass not the resultMap. Also, since your select results will potentially differ you will need to set the remapResults=true attribute in the select. Brandon On 5/27/05, Ritu Kedia [EMAIL PROTECTED] wrote: Hello All, This is my first post to IBatis. We are planning to use IBatis as our OR-Mapping tool. First of all thanks to all the contributors for this great contribution. I particularly liked the dynamic SQl feature. I have a question on whether the select columns can also be made dynamic? Currently I am getting SQLException for Invalid Column Name when the framework is trying to map the fetched data to the declared Result Map. OR Could we bind the ResultMap dynamically to the Select statement? In other words could we have something like: select id=FindDynamic resultMap=$resultMap$ SELECT ID, NAME dynamic prepend=, isNotNull property=fetchDetails DESCRIPTION, /isNotNull /dynamic FROM SOME_TABLE dynamic prepend=WHERE isNotNull prepend=AND property=name NAME $name_operator$ #name# /isNotNull isNotNull prepend=AND property=description DESCRIPTION $description_operator$ #description# /isNotNull /dynamic /select Where $resultMap$ would be passed via the Java API. If the resultMap is hard bound to the following: resultMap id=Detail_ResultMap class=Some_Detail result property=name column=Name/ result property=description column=Description/ result property=id column=ID/ /resultMap In the above select if the resultMap=Detail_ResultMap then when property fetchDetails is not present then I get a SQLException Invalid Column Name for the Description column. Could someone please suggest a way to accommodate the above requirement of having dynamic select columns? Thanks and Regards, Ritu Kedia
Namespace Problem
Hi- Not sure if this is the right mail list, but having a little trouble using the namespace in the SQL map. I have something like this in a resultMap: result property=someProperty column=DB_COLUMN select=SomeNamespace.statementId/ I receive this error when trying to query: --- The error occurred in iBATIS/sqlmap-XXX.xml. --- The error occurred while applying a result map. --- Check the XXX.XXX. --- Check the result mapping for the 'someProperty' property. --- Cause: com.ibatis.sqlmap.client.SqlMapException: There is no statement named SomeNamespace.statementId in this SqlMap.]; SQL was [] for task [SqlMapClient operation] Any ideas? I the SQL maps doc said that was allowed. Thanks. Carson Reinke [EMAIL PROTECTED] P: 248.333.7700 x108
Re: Namespace Problem
Hi Carson, Did you enable namespaces in your sql-map-config? Did you declare a valid namespace for your maps file? Cheers, Daniel Silva. On 5/27/05, Carson Reinke [EMAIL PROTECTED] wrote: Hi- Not sure if this is the right mail list, but having a little trouble using the namespace in the SQL map. I have something like this in a resultMap: result property=someProperty column=DB_COLUMN select=SomeNamespace.statementId/ I receive this error when trying to query: --- The error occurred in iBATIS/sqlmap-XXX.xml. --- The error occurred while applying a result map. --- Check the XXX.XXX. --- Check the result mapping for the 'someProperty' property. --- Cause: com.ibatis.sqlmap.client.SqlMapException: There is no statement named SomeNamespace.statementId in this SqlMap.]; SQL was [] for task [SqlMapClient operation] Any ideas? I the SQL maps doc said that was allowed. Thanks. Carson Reinke [EMAIL PROTECTED] P: 248.333.7700 x108
RE: Namespace Problem
So I have to declare this in my sqlmap-config: settings useStatementNamespaces=true/ This forces me to use namespaces whenever I reference a statement, right? I declared a namespace like this: sqlMap namespace=SomeNamespace, are there any special rules with the naming? Thanks. Carson Reinke [EMAIL PROTECTED] P: 248.333.7700 x108 -Original Message- From: Daniel Henrique Ferreira e Silva [mailto:[EMAIL PROTECTED] Sent: Friday, May 27, 2005 1:35 PM To: ibatis-user-java@incubator.apache.org Subject: Re: Namespace Problem Hi Carson, Did you enable namespaces in your sql-map-config? Did you declare a valid namespace for your maps file? Cheers, Daniel Silva. On 5/27/05, Carson Reinke [EMAIL PROTECTED] wrote: Hi- Not sure if this is the right mail list, but having a little trouble using the namespace in the SQL map. I have something like this in a resultMap: result property=someProperty column=DB_COLUMN select=SomeNamespace.statementId/ I receive this error when trying to query: --- The error occurred in iBATIS/sqlmap-XXX.xml. --- The error occurred while applying a result map. --- Check the XXX.XXX. --- Check the result mapping for the 'someProperty' property. --- Cause: com.ibatis.sqlmap.client.SqlMapException: There is no statement named SomeNamespace.statementId in this SqlMap.]; SQL was [] for task [SqlMapClient operation] Any ideas? I the SQL maps doc said that was allowed. Thanks. Carson Reinke [EMAIL PROTECTED] P: 248.333.7700 x108
RE: Namespace Problem
To answer my own questions, the settings useStatementNamespaces=true/ works and I now reference all statements with the namespace. Thanks for the help! Thanks. Carson Reinke [EMAIL PROTECTED] P: 248.333.7700 x108 -Original Message- From: Carson Reinke Sent: Friday, May 27, 2005 1:43 PM To: 'ibatis-user-java@incubator.apache.org'; 'Daniel Henrique Ferreira e Silva' Subject: RE: Namespace Problem So I have to declare this in my sqlmap-config: settings useStatementNamespaces=true/ This forces me to use namespaces whenever I reference a statement, right? I declared a namespace like this: sqlMap namespace=SomeNamespace, are there any special rules with the naming? Thanks. Carson Reinke [EMAIL PROTECTED] P: 248.333.7700 x108 -Original Message- From: Daniel Henrique Ferreira e Silva [mailto:[EMAIL PROTECTED] Sent: Friday, May 27, 2005 1:35 PM To: ibatis-user-java@incubator.apache.org Subject: Re: Namespace Problem Hi Carson, Did you enable namespaces in your sql-map-config? Did you declare a valid namespace for your maps file? Cheers, Daniel Silva. On 5/27/05, Carson Reinke [EMAIL PROTECTED] wrote: Hi- Not sure if this is the right mail list, but having a little trouble using the namespace in the SQL map. I have something like this in a resultMap: result property=someProperty column=DB_COLUMN select=SomeNamespace.statementId/ I receive this error when trying to query: --- The error occurred in iBATIS/sqlmap-XXX.xml. --- The error occurred while applying a result map. --- Check the XXX.XXX. --- Check the result mapping for the 'someProperty' property. --- Cause: com.ibatis.sqlmap.client.SqlMapException: There is no statement named SomeNamespace.statementId in this SqlMap.]; SQL was [] for task [SqlMapClient operation] Any ideas? I the SQL maps doc said that was allowed. Thanks. Carson Reinke [EMAIL PROTECTED] P: 248.333.7700 x108
Support for generics
Since apple is taking then sweet time I just got Java 1.5. I am diving in head first but I am curious about what the plans for Generics are. Will I batis support them? Could there be a way to specify the list type instead of Object? i.e. return a ListStudent back based on the result class of the query? Nathan
Re: Support for generics
This is definitely on our list to do... sometime :-p. But, it is a matter of compatibility. We have talked about creating a special ibatis version to take advantage of some of the java 5 features. But, we haven't really looked into it real deep and don't know what it would take to accomplish it and if it is something we need to add to ibatis. Have you tried to simply use generics with ibatis? Brandon On 5/27/05, Nathan Maves [EMAIL PROTECTED] wrote: Since apple is taking then sweet time I just got Java 1.5. I am diving in head first but I am curious about what the plans for Generics are. Will I batis support them? Could there be a way to specify the list type instead of Object? i.e. return a ListStudent back based on the result class of the query? Nathan
Re: Support for generics
I have done that with my DAO layer. SqlMap returns it as List, but you can cast it. Worked great. :) Larry On 5/27/05, Nathan Maves [EMAIL PROTECTED] wrote: Since apple is taking then sweet time I just got Java 1.5. I am diving in head first but I am curious about what the plans for Generics are. Will I batis support them? Could there be a way to specify the list type instead of Object? i.e. return a ListStudent back based on the result class of the query? Nathan
Re: Support for generics
Possibly the new early binding functionality (in the TRUNK) will allow for you to use generic typing for your lists then you wouldn't need to cast them. But, that is an untested suggestion. Brandon On 5/27/05, Larry Meadors [EMAIL PROTECTED] wrote: I have done that with my DAO layer. SqlMap returns it as List, but you can cast it. Worked great. :) Larry On 5/27/05, Nathan Maves [EMAIL PROTECTED] wrote: Since apple is taking then sweet time I just got Java 1.5. I am diving in head first but I am curious about what the plans for Generics are. Will I batis support them? Could there be a way to specify the list type instead of Object? i.e. return a ListStudent back based on the result class of the query? Nathan
Re: Support for generics
Yeah, I have used generics everywhere but the missing link is when it gets to the DAO layer. You can cast the List but you will always get the warning for and unchecked assignment when the List is returned from the sqlmap. ListStudent students = (ListStudent)executeQueryForList (getStudents,null); Looks good but does not resolve the warnings. Nathan On May 27, 2005, at 2:30 PM, Larry Meadors wrote: I have done that with my DAO layer. SqlMap returns it as List, but you can cast it. Worked great. :) Larry On 5/27/05, Nathan Maves [EMAIL PROTECTED] wrote: Since apple is taking then sweet time I just got Java 1.5. I am diving in head first but I am curious about what the plans for Generics are. Will I batis support them? Could there be a way to specify the list type instead of Object? i.e. return a ListStudent back based on the result class of the query? Nathan
Re: Querying Based on Date.
What is the driver and database (include version) are you using? What is the column type in the database? Brandon On 5/27/05, Cruz, Edward J. [EMAIL PROTECTED] wrote: I am having trouble with a query based on a date property. Basically I need to return data where a Transaction_Date in the database is equal to a date I pass in through an object to the Ibatis framework. The database holds Transaction_Date as a Date type and my parameter object also has a java.util.Date type. I created a Date using the java SimpleDateFormat as follows. SimpleDateFormat date = new SimpleDateFormat(MMdd); Date transactionDate = date.parse(20040205); I used DbUnit to insert the transactionDate into the database. Then I called the iBatis framework passing in an Transfer Object that holds transactionDate and has the appropriate getters and setters. My xml is as follows searchCriteria has the appropriate type alias. select id=queryForTotalRecords parameterClass=searchCriteria resultsClass=java.lang.Integer Select count(*) from orders dynamic prepend=where isNotNull prepend=AND property=transactionDate TRANSACTION_NUM = #transactionDate:date# /isNotNull /dynamic /select I have other properties that are all strings and work well in the same manner using isNotNull that is why I have the prepend=AND above. When looking at the log file when this runs it shows the following PreparedStatement: select count(*) from orders where TRANSACTION_NUM = ? Parameters: [2004-02-05 00:00:00.0] Types: [java.sql.Timestamp] The results of invoking this query when the same Date is entered into the database is 0. When it should return 1. Is there something special that needs to be done to compare Dates? I even tried using both greater than and less than operators and I always receive 0 as my count. Any Suggestions would be appreciated. Jamie Cruz Software Engineering [EMAIL PROTECTED]
Re: Support for generics
I believe the new Mapper binding functionality would resolve this Nathan, are you up for trying it out? Cheers, Clinton On 5/27/05, Nathan Maves [EMAIL PROTECTED] wrote: Yeah, I have used generics everywhere but the missing link is when itgets to the DAO layer.You can cast the List but you will always get the warning for andunchecked assignment when the List is returned from the sqlmap. ListStudent students = (ListStudent)executeQueryForList(getStudents,null);Looks good but does not resolve the warnings.NathanOn May 27, 2005, at 2:30 PM, Larry Meadors wrote: I have done that with my DAO layer. SqlMap returns it as List, but you can cast it. Worked great. :) Larry On 5/27/05, Nathan Maves [EMAIL PROTECTED] wrote: Since apple is taking then sweet time I just got Java 1.5.I am diving in head first but I am curious about what the plans for Generics are. Will I batis support them? Could there be a way to specify the list type instead of Object? i.e. return a ListStudent back based on the result class of the query? Nathan
Re: Support for generics
Of course! Do I need to build it from the trunk? Nathan On May 27, 2005, at 8:32 PM, Clinton Begin wrote: I believe the new Mapper binding functionality would resolve this Nathan, are you up for trying it out? Cheers, Clinton On 5/27/05, Nathan Maves [EMAIL PROTECTED]> wrote: gets to the DAO layer. You can cast the List but you will always get the warning for and unchecked assignment when the List is returned from the sqlmap. ListStudent> students = (ListStudent>)executeQueryForList (getStudents,null); Looks good but does not resolve the warnings. Nathan On May 27, 2005, at 2:30 PM, Larry Meadors wrote: > I have done that with my DAO layer. > > SqlMap returns it as List, but you can cast it. > > Worked great. :) > > Larry > > > On 5/27/05, Nathan Maves [EMAIL PROTECTED]> wrote: > >> Since apple is taking then sweet time I just got Java 1.5. I am >> diving in head first but I am curious about what the plans for >> Generics are. >> >> Will I batis support them? >> Could there be a way to specify the list type instead of Object? >> >> i.e. >> return a ListStudent> back based on the result class of the query? >> >> Nathan >> >> >
Re: Support for generics
yes, build it from the trunk. On 5/27/05, Nathan Maves [EMAIL PROTECTED] wrote: Of course! Do I need to build it from the trunk? Nathan On May 27, 2005, at 8:32 PM, Clinton Begin wrote: I believe the new Mapper binding functionality would resolve this Nathan, are you up for trying it out? Cheers, Clinton On 5/27/05, Nathan Maves [EMAIL PROTECTED] wrote: gets to the DAO layer. You can cast the List but you will always get the warning for and unchecked assignment when the List is returned from the sqlmap. ListStudent students = (ListStudent)executeQueryForList (getStudents,null); Looks good but does not resolve the warnings. Nathan On May 27, 2005, at 2:30 PM, Larry Meadors wrote: I have done that with my DAO layer. SqlMap returns it as List, but you can cast it. Worked great. :) Larry On 5/27/05, Nathan Maves [EMAIL PROTECTED] wrote: Since apple is taking then sweet time I just got Java 1.5.I am diving in head first but I am curious about what the plans for Generics are. Will I batis support them? Could there be a way to specify the list type instead of Object? i.e. return a ListStudent back based on the result class of the query? Nathan
