Cannot convert value of type [flex.messaging.io.amf.ASObject] to required type
Hi,
Thanks for your coming here.
I have encountered a error when I use Spring BlazeDS Integration(version 1.5.0.M1).
I have two java beans as below:
Code:public class UserFilter{ private Long userFilterOid; private Employee employee; private String name; private int sort; private String module; private boolean isAll; private Set<UserSearchCriteria> userSearchCriterias; //set get method...... }two actionscript beans as below:Code:public class UserSearchCriteria{ private Long userSearchCriteriaOid; private UserFilter userFilter; private String fieldName; private String searchCondition; private String fieldValue; //set get method...... }
Code:package com.kaidi.eas.model { import com.kaidi.eas.model.Employee; import com.kaidi.eas.model.UserSearchCriteria; [Bindable] [RemoteClass(alias="com.kaidi.eas.model.UserSearchCriteria")] public class UserSearchCriteria { public var userSearchCriteriaOid:Number; public var employee:Employee; public var fieldName:String; public var searchCondition:String; public var fieldValue:String; public var oid:Number; } }Code:package com.kaidi.eas.model { import com.kaidi.eas.model.Employee; import com.kaidi.eas.model.UserFilter; import mx.collections.ArrayCollection; [Bindable] [RemoteClass(alias="com.kaidi.eas.model.UserFilter")] public class UserFilter { public var userFilterOid:Number; public var employee:Employee; public var name:String; public var sort:String; public var module:String; public var isAll:Boolean; public var userSearchCriterias : ArrayCollection; public var oid:Number; } }
I am using hibernate HQL to fetch a list:
List<UserFilter> filterList = userFilterDao.getFilters(userOid, moduleName);
the userFilterDao->getFilters code as below:
Code:public List<UserFilter> getFilters(long userOid, String module) { final String queryString = "from UserFilter filter " + " left join fetch filter.userSearchCriterias " + " left join fetch filter.employee empl " + " where empl.employeeOid = :userOid " + " and filter.module = :module " + " order by filter.sort " ; String[] paramNames = { "userOid", "module" }; Object[] parameters = { userOid, module }; List<UserFilter> list = this.getHibernateTemplate().findByNamedParam(queryString, paramNames, parameters); return list; }
the filterList will pass to the flex side.but the UserSearchCriteria in filterList items will not serialize success. just show as Object type but I can get the values in this Object. The application works well.
But when I pass an UserFilter(filterList.getItemAt(0)) back to the java side. the sever will throw exception as below:
the flex log show as below:Code:[BlazeDS]Error deserializing client message. org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'flex.messaging.io.ArrayCollection' to required type 'java.util.Set' for property 'userSearchCriterias'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [flex.messaging.io.amf.ASObject] to required type [com.kaidi.eas.model.UserSearchCriteria] for property 'userSearchCriterias[0]': no matching editors or conversion strategy found at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:462) at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:499) at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:1071) at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:876) at org.springframework.flex.core.io.SpringPropertyProxy.setValue(SpringPropertyProxy.java:98) at flex.messaging.io.amf.Amf3Input.readScriptObject(Amf3Input.java:438) at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:152) at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:130) at flex.messaging.io.amf.Amf3Input.readArray(Amf3Input.java:358) at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:156) at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:130) at flex.messaging.io.amf.Amf3Input.readScriptObject(Amf3Input.java:437) at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:152) at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:130) at flex.messaging.io.amf.Amf0Input.readObjectValue(Amf0Input.java:123) at flex.messaging.io.amf.Amf0Input.readArrayValue(Amf0Input.java:359) at flex.messaging.io.amf.Amf0Input.readObjectValue(Amf0Input.java:127) at flex.messaging.io.amf.Amf0Input.readObject(Amf0Input.java:94) at flex.messaging.io.amf.AmfMessageDeserializer.readObject(AmfMessageDeserializer.java:227) at flex.messaging.io.amf.AmfMessageDeserializer.readBody(AmfMessageDeserializer.java:206) at flex.messaging.io.amf.AmfMessageDeserializer.readMessage(AmfMessageDeserializer.java:126) at flex.messaging.endpoints.amf.SerializationFilter.invoke(SerializationFilter.java:145) at flex.messaging.endpoints.BaseHTTPEndpoint.service(BaseHTTPEndpoint.java:291) at flex.messaging.endpoints.AMFEndpoint$$EnhancerByCGLIB$$4b5262f7.service(<generated>) at org.springframework.flex.servlet.MessageBrokerHandlerAdapter.handle(MessageBrokerHandlerAdapter.java:108) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:774) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.IllegalStateException: Cannot convert value of type [flex.messaging.io.amf.ASObject] to required type [com.kaidi.eas.model.UserSearchCriteria] for property 'userSearchCriterias[0]': no matching editors or conversion strategy found at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:231) at org.springframework.beans.TypeConverterDelegate.convertToTypedCollection(TypeConverterDelegate.java:520) at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:173) at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:447) ... 42 more
Code:[RPC Fault faultString="Error deserializing client message." faultCode="Client.Packet.Encoding" faultDetail="null"] at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::faultHandler()[E:\dev\4.0.0\frameworks\projects\rpc\src\mx\rpc\AbstractInvoker.as:345] at mx.rpc::Responder/fault()[E:\dev\4.0.0\frameworks\projects\rpc\src\mx\rpc\Responder.as:68] at mx.rpc::AsyncRequest/fault()[E:\dev\4.0.0\frameworks\projects\rpc\src\mx\rpc\AsyncRequest.as:113] at NetConnectionMessageResponder/statusHandler()[E:\dev\4.0.0\frameworks\projects\rpc\src\mx\messaging\channels\NetConnectionChannel.as:609] at mx.messaging::MessageResponder/status()[E:\dev\4.0.0\frameworks\projects\rpc\src\mx\messaging\MessageResponder.as:264]
Do you have any good suggestions to fix it?
Thank you.
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