Hi Dustin, Lazy loading is a very powerful optimization technique that allows you not to load full object graphs when you need just one. There are a lot of articles on the web about this topic, check [1] for basic information or [2] for details on IBatis [1] http://www.google.com/search?q=lazy+loading [2] http://www.google.com/search?q=ibatis+lazy+loading Regards Carlos Peix
_____ De: Dustin Aleksiuk [mailto:dustin.aleks...@huskyenergy.com] Enviado el: Jueves, 30 de Julio de 2009 12:00 p.m. Para: user-cs@ibatis.apache.org Asunto: RE: Medium Trust Environments What do you mean by this? Thanks, Dustin From: Carlos Peix [mailto:peix-lis...@praxia.com.ar] Sent: Thursday, July 30, 2009 8:54 AM To: user-cs@ibatis.apache.org; mich...@mccurrey.com Subject: RE: Medium Trust Environments Erin, Be careful, resigning lazy loading nowadays is equivalent to resign the Queen and two Bishops in chess. Just as a warning. Regards. Carlos Peix _____ De: Erin Rollenhagen [mailto:e...@entrepreneurialtechnologies.com] Enviado el: Jueves, 30 de Julio de 2009 11:43 a.m. Para: user-cs@ibatis.apache.org; mich...@mccurrey.com Asunto: RE: Medium Trust Environments Bingo!!! That solved the reflection error. Thank you! From: Ron Grabowski [mailto:rongrabow...@yahoo.com] Sent: Wednesday, July 29, 2009 10:35 PM To: user-cs@ibatis.apache.org; mich...@mccurrey.com Subject: Re: Medium Trust Environments I think there is a <setting /> to turn off the IL optimizations which means you can't use any of the lazy loading. _____ From: Michael McCurrey <mmccur...@gmail.com> To: user-cs@ibatis.apache.org Sent: Tuesday, July 28, 2009 9:02:13 PM Subject: Re: Medium Trust Environments I'm not around a compiler at the moment; but I do recall reading someplace that the Castle.DynamicProxy (old version) as is doesn't allow partially trusted calls. You'd either have to link it to a version that does or ILMerge it into the iBatis DLL. It's a pain. On Tue, Jul 28, 2009 at 5:39 PM, Erin Rollenhagen <e...@entrepreneurialtechnologies.com> wrote: An update: I've now recompiled the Ibatis.Net dlls using AllowPartiallyTrustedCallers and have come up with a new exception: [SecurityException: Request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.] System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0 System.Security.CodeAccessPermission.Demand() +58 System.Reflection.Emit.DynamicMethod.PerformSecurityCheck(Module m, StackCrawlMark& stackMark, Boolean skipVisibility) +191 System.Reflection.Emit.DynamicMethod..ctor(String name, Type returnType, Type[] parameterTypes, Module m, Boolean skipVisibility) +49 IBatisNet.Common.Utilities.Objects.Members.DelegatePropertySetAccessor..ctor (Type targetObjectType, String propName) +700 IBatisNet.Common.Utilities.Objects.Members.SetAccessorFactory.CreateDynamicP ropertySetAccessor(Type targetType, String propertyName) +235 IBatisNet.Common.Utilities.Objects.Members.SetAccessorFactory.CreateSetAcces sor(Type targetType, String name) +453 IBatisNet.DataMapper.Configuration.ResultMapping.ResultProperty.Initialize(C onfigurationScope configScope, Type resultClass) +336 IBatisNet.DataMapper.Configuration.ResultMapping.ResultMap.GetChildNode(Conf igurationScope configScope) +1570 IBatisNet.DataMapper.Configuration.ResultMapping.ResultMap.Initialize(Config urationScope configScope) +194 I've Googled around a bit and it seems the solution to this is making any members that need to be reflected public. This doesn't really seem realistic - does anyone have any ideas? From: Michael McCurrey [mailto:mmccur...@gmail.com] Sent: Tuesday, July 28, 2009 7:29 PM To: user-cs@ibatis.apache.org Subject: Re: Medium Trust Environments What type of ado.net driver are you using? On Tue, Jul 28, 2009 at 4:08 PM, Erin Rollenhagen <e...@entrepreneurialtechnologies.com> wrote: Hi Everyone, I know I've brought this up before but I don't think there was ever an answer.I got around it at the time by switching from a GoDaddy account to a HostMySite account that was running in a higher-trust environment. Now my host has sent out an email saying that they're switching to medium trust in a week. I decided to test this out by setting the trust level to medium in my application, and sure enough, my ibatis calls no longer work. I've tried marking the EntrepreneurialTechnologies.DatabaseHelper class (which calls Ibatis) with the AllowPartiallyTrustedCallers attribute and signing it, but to no avail. I still get the security exception. What I'd like to know is if this is something that just cannot be done, if Ibatis is fundamentally incompatible with medium-trust environments, or if there is a way to configure things so that it will run in medium trust. Does anyone have this working currently? If this is something obvious that I am not getting about how medium trust works, please forgive me. I've never had to deal with this much before. Any and all guidance is appreciated. Here is the stack trace: [SecurityException: That assembly does not allow partially trusted callers.] EntrepreneurialTechnologies.DatabaseHelper.SelectMapperClient.selectList(Str ing selectName, Object params) +0 ET.IowaChiropracticSociety.HomePageBannerService.getActive() +82 _DefaultPage.Page_Load(Object sender, EventArgs e) +308 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Adapters.ControlAdapter.OnLoad(EventArgs e) +15 System.Web.UI.Control.LoadRecursive() +8683053 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6785 System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +242 System.Web.UI.Page.ProcessRequest() +80 System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21 System.Web.UI.Page.ProcessRequest(HttpContext context) +49 ASP.default_aspx.ProcessRequest(HttpContext context) +37 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionSte p.Execute() +181 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75 Thanks! Erin Rollenhagen Entrepreneurial Technologies 12257 University Avenue, Suite 200 Clive, Iowa 50325 515.440.1242 e...@entretechno.com http://www.entretechno.com <http://www.entretechno.com/> -- Michael J. McCurrey Read with me at http://www.mccurrey.com http://chaoticmindramblings.blogspot.com/ -- Michael J. McCurrey Read with me at http://www.mccurrey.com http://chaoticmindramblings.blogspot.com/
