Hello everyone;
I'm fairly new to iBATIS and I seem to have hit a wall that I can't get
around.
I keep getting the error message "Error configuring DAO. Cause: Ambiguous
match found", when I try to access a Dao (CompanyDao) through the DaoManager
by calling the corresponding IDao (ICompanyDao).
The solution is made up of 4 projects:
Data.Domain ( domain/value classes, common code )
Data.Persistence ( Daos and their corresponding interfaces )
Data.Service ( Service classes that inherit a reference to a
DaoManager )
Data.Service.Test ( Unit tests for Data.Service )
********************************
Here is a sample Service class:
********************************
using System;
using Data.Service.Source.Base;
using Data.Domain.Source.Directory.Core;
using Data.Persistence.Interface.Directory.Core;
namespace Data.Service.Source.Directory.Core {
public class CompanyService : BaseService {
private static CompanyService _instance = new
CompanyService( );
private ICompanyDao _companyDao = null;
private CompanyService( ) {
_companyDao = ( ICompanyDao ) _daoManager.GetDao(
typeof( ICompanyDao ) );
}
public static CompanyService Instance( ) {
return _instance;
}
public CompanyVO GetByID( string companyId ) {
CompanyVO companyVo = null;
_daoManager.OpenConnection( );
companyVo = _companyDao.GetByID( companyId );
_daoManager.CloseConnection( );
return companyVo;
}
}
}
***********************************
I have been puzzling over this for quite a while.
Any hint as to what I might have done wrong would be very much appreciated.
Thanks in advance,
Jason Taylor
P.S. I have included the Exception Message and the Stack Trace below
MESSAGE:
System.TypeInitializationException : The type initializer for
'Data.Service.Source.Directory.Core.CompanyService' threw an exception.
----> IBatisNet.Common.Exceptions.ConfigurationException :
- The error occurred while add global properties.
- configure dao
- The error occurred in <dao
interface="Data.Persistence.Interface.Directory.Core.ICompanyDao,
Data.Persistence"
implementation="Data.Persistence.Source.Directory.Core.CompanyDao,
Data.Persistence" />.
- Check the Data.Persistence.Source.Directory.Core.CompanyDao,
Data.Persistence.
----> IBatisNet.Common.Exceptions.ConfigurationException : Error
configuring DAO. Cause: Ambiguous match found.
----> System.Reflection.AmbiguousMatchException : Ambiguous match found.
STACK TRACE:
at Data.Service.Source.Directory.Core.CompanyService.Instance()
at
Data.Service.Test.Source.Directory.Core.CompanyServiceTest.TestService() in
E:\Projects\The ESCO
Institute\Applications\Esco.2007\Data.Service.Test\Source\Directory\Core\Com
panyServiceTest.cs:line 13
--TypeInitializationException
at Data.Service.Source.Base.BaseService.setDaoManager() in
E:\Projects\The ESCO
Institute\Applications\Esco.2007\Data.Service\Source\Base\BaseService.cs:lin
e 19
at Data.Service.Source.Base.BaseService..ctor() in E:\Projects\The ESCO
Institute\Applications\Esco.2007\Data.Service\Source\Base\BaseService.cs:lin
e 25
at Data.Service.Source.Directory.Core.CompanyService..ctor() in
E:\Projects\The ESCO
Institute\Applications\Esco.2007\Data.Service\Source\Directory\Core\CompanyS
ervice.cs:line 14
at Data.Service.Source.Directory.Core.CompanyService..cctor() in
E:\Projects\The ESCO
Institute\Applications\Esco.2007\Data.Service\Source\Directory\Core\CompanyS
ervice.cs:line 10
--ConfigurationException
at IBatisNet.DataAccess.Configuration.Dao.Initialize(DaoManager
daoManager)
at
IBatisNet.DataAccess.Configuration.DomDaoManagerBuilder.ParseDaoFactory(Conf
igurationScope configurationScope, DaoManager daoManager)
at
IBatisNet.DataAccess.Configuration.DomDaoManagerBuilder.GetContexts(Configur
ationScope configurationScope)
at
IBatisNet.DataAccess.Configuration.DomDaoManagerBuilder.BuildDaoManagers(Xml
Document document, Boolean useConfigFileWatcher)
--ConfigurationException
at System.RuntimeType.GetMethodImpl(String name, BindingFlags
bindingAttr, Binder binder, CallingConventions callConv, Type[] types,
ParameterModifier[] modifiers)
at System.Type.GetMethod(String name)
at
Castle.DynamicProxy.Builder.CodeBuilder.SimpleAST.MethodTokenExpression.Emit
(IEasyMember member, ILGenerator gen)
at
Castle.DynamicProxy.Builder.CodeBuilder.SimpleAST.MethodInvocationExpression
.Emit(IEasyMember member, ILGenerator gen)
at
Castle.DynamicProxy.Builder.CodeBuilder.SimpleAST.AssignStatement.Emit(IEasy
Member member, ILGenerator gen)
at
Castle.DynamicProxy.Builder.CodeBuilder.AbstractCodeBuilder.Generate(IEasyMe
mber member, ILGenerator il)
at Castle.DynamicProxy.Builder.CodeBuilder.EasyMethod.Generate()
at
Castle.DynamicProxy.Builder.CodeBuilder.AbstractEasyType.EnsureBuildersAreIn
AValidState()
at Castle.DynamicProxy.Builder.CodeBuilder.AbstractEasyType.BuildType()
at
Castle.DynamicProxy.Builder.CodeGenerators.BaseCodeGenerator.CreateType()
at
Castle.DynamicProxy.Builder.CodeGenerators.InterfaceProxyGenerator.GenerateC
ode(Type[] interfaces, Type targetType)
at
Castle.DynamicProxy.Builder.DefaultProxyBuilder.CreateInterfaceProxy(Type[]
interfaces, Type type)
at Castle.DynamicProxy.ProxyGenerator.CreateProxy(Type[] interfaces,
IInterceptor interceptor, Object target)
at IBatisNet.DataAccess.Configuration.DaoProxy.NewInstance(Dao dao)
at IBatisNet.DataAccess.Configuration.Dao.Initialize(DaoManager
daoManager)
