RFID in JAVA

Anyone know how to get information on reading RFID signals into JAVA? What classes or wrapper classes does one need?
email me at [email protected]
Thanks!

A Google search
http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=Java+RFID
turned up this:
http://java.ittoolbox.com/news/dispnews.asp?i=109973&t=99
Google is always your friend. - MOD

Similar Messages

Sun Application Server 9.1_02 + Sun RFID Software 3.0 + Postgres8.3?

Hi all
I am working on some RFID-related project. I need to capture, fiter and then perform some other tasks on the data sensed by RFID readers, all in Java. So I choose Sun's software. There was no luck when I was trying to configure my system to work with Sun's software. Hope you experienced could do me a favor and help me out. Thanks in advance. Here are details.
In the installation guide of Sun Java System RFID Software 3.0, it says, to install RFID information server, Sun Java System Application Server Platform Edition 8.1 2005Q2 UR2 and PostgreSQL 8.0.4 are needed.
For the following 2 reasons:
1 PostgreSQL 8.0.4 is now not available to download on www.postgresql.org;
2 I think later version of PostgreSQL or Sun Application Server should be compatible to their earlier versions
I tried the following combination other than those stated in the installation guide:
1 PostgreSQL 8.3;
2 Sun Java System Application Server 9.1_02, bound with Sun Java Application Platform SDK Update 5;
3 Sun Java System RFID Software 3.0
Then, the application server successfully communicates with PostgreSQL, demonstrated by "ping success" through the connection pool built in application server's admin console.
The RFID information server communicates successfully with PostgreSQL, demonstrated by deploying RFID information server database successfully in PostgreSQL.
But, instructed by the installation guide, when I tried to validate my RFID information server installation by typing "http://localhost:8080/epcis" in the browser, the application server reported "the resource is not available".
I looked into many other internet resources and instructions about this, but no luck at all. I am now really, really stuck. Hope you could do me this favor. Thanks.
PS:
1 PostgreSQL8.3 is available on http://www.postgresql.org/download/
2 Sun Java System Application Server is available on http://java.sun.com/javaee/downloads/index.jsp
3 Sun Java System RFID Software and the installation guide are available on https://sun-rfid.dev.java.net/SJS_RFID_Software.html
4 Operation System is Windows XP

Would be a great idea to open-source the Sun RFID project, since the project is inactive over the last tree years.
Seems that this project have a great architecture, but the techonolgy is outdated ...
We have another open source initiave (google for Aspire RFID), but seems that this project still imature ...
Comercial options includes ALE Server, and Sendra Solutions (but I didn't evaluated these)
Mario Prado-Brazil

Port identification(com1 port)

Help me pl
I am developing an application for rfid in java.In that i am finding the ports in system.(com1..).I am not able to find the ports.It is throwing exception.How to find a port.
my code is,
CommPortIdentifier portId = CommPortIdentifier.getPortIdentifier("COM1");
the exception which i got is,
No port named COM1 foundjavax.comm.NoSuchPortException
javax.comm.NoSuchPortException
at javax.comm.CommPortIdentifier.getPortIdentifier(CommPortIdentifier.ja
at connectPro.main(connectPro.java:40)
Help me pl...

I think you can create a Socket instance yourself.
If it works, then the port was open.
If the constructor fails, the port may have been in use.
What would be nice, especially if you have to work through a firewall, is to have a property file which sets which ports / port range you can use.
Example: 2000 - 2050
Then you use a for loop to run through that range, attempting to open a socket.
To test whether this theory works, you can open a socket, then try opening it again with another socket.... see if it fails.. then you know you have a way to determine if a port is in use or not.
Ps. Steer clear of ports under 1024, as these are "well known ports" and by convention reserved for other applications eg. mail, telnet etc.
regards,
Owen

What are the Java libraries for RFID

I need to know the Java classes implemented in RFID infrastructure for processing data and events between readers and tags?

Hi,
You can install the Java proxy runtime on the SAP J2EE Engine Release 6.40 SP5 or higher.
The messaging system that the Java proxy runtime uses to send messages to the Integration Server must also be installed on the J2EE server.
To send messages from a J2EE application, the application must be programmed against beans that encapsulate all details about the Java runtime. The following classes are generated:
· Proxy classes that send or receive messages using the Java proxy runtime.
· Bean classes as an outer shell that conform to the J2EE standard. The beans call the proxy classes for communication.
The classes must be deployed on the J2EE server together with their J2EE application
see this link for the example scenario http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/f272165e-0401-0010-b4a1-e7eb8903501d

SAP AII & Sun Java RFID Architecture

Hello,
has anyone implemented or planned a RFID scenario with SAP AII and Sun Java RFID architecture going togheter?
I'm not sure if SAP AII is interfased with SUN Java RFID architecture in a standard mode or I'm wrong at this point?
Regards,

Hello,
I think there is some problem in uploading the jars. Or just check wether the connection with the PI database is working fine or not.
Thanks and Regards
Aman

Help:java card and rfid

I searched a lot about java card and rfid, but don't have a clear idea about the relationship between the two. Please help me....

They have NO common grounds.
A java card needs a real "smart" processor because it contains a Java Virtual Machine, can do crypto and other stuff. The cost to produce one is in the multi dollar range. Some java cards can communicate contactless by "radio".
RFID is the term to describe a very primitive device, all it can do is report a unique identification (ID) and it does this contactless (RF). the cost to produce one is in the cent range. You can use it to track products or containers or other stuff.
Since RFID is also a very popular buzzword these days, the exact meaning of RFID varies.
Of course, you could use a java card to play RFID tag, but that would be
very expensive. Java cards are usually used for bank cards and similar applications.

Need help for equipments for java card with RFID technology .

I 'm doin a project using java card with RFID technology.Can ne one give me exact equipments for java card reader & writer for RFID technology?
I need to buy these things from UK.Can ne one provide me some product list & as well as the exact pricelist?
plz reply me asap.

I 'm doin a project using java card with RFID
technology.Can ne one give me exact equipments for
r java card reader & writer for RFID technology?I guess with "RFID" you are referring to "contact-less javacards"?
If yes, one keyword for you is "Mifare", a industry standard for smartcards with dual interface (contact-based and contactless).
Jan

RFID Software for Java ME Devices

Anybody have tried RFID software for JME devices.. Can any one give some pointer to know on that...
I have only one link available: http://www.sun.com/software/solutions/rfid/ds/ds_rfid_javame.pdf

I am looking out for technical details how to develop JME devices as RF reader. It is said that RFID software for JME devices has components like Reader Adapter,Reader Management, ALE etc, But I could not find more information in the sun's website.
I would also like to know the memory requirement for CDC and CLDC devices.

Help needed in learning the basics of Java Smart Card and implementation?

Hello every body,
I am trying to develop the applications on java contactless smart cards technology.
Can any body give me the details like how to start?
What are the required softwares and installation procedure and path settings and etc.?
I am the beginner in java smart card application development.
plz help me out

Dear Friend,
I would advice to divide learning into two main parts: JavaCard technology and contactless RFID cards. For JavaCard technology you can find useful articles on Sun web-site (developers.sun.com/mobility/javacard/articles/javacard1/). For contactless RFID you can find few useful books at Amazon. Regarding software you need JC development kit. How to install it there is an instrunction in JCDK user guide.
If it is not a secret what a javacard contactless card you are going to use in your work?
Yours
Dmitri

How mobile device ( rfid/barcode reader) communicates with SAP transaction.

Dear Friends !
Good morning, How are you ?
I want to understand that in ITSmobile How Mobile device ( RFID Reader ot Barcode scanner/reader) to fetch the data and supply the ITS screen.
I believe every mobile device has some .dll file or something in that we have some methods if we call it say in .net or java application we can read the rfid or barcode and from the returning paramter of the .dll method we can get information what we want ( if i m not wrong).
now the question is if I have some barcode /rfid number which is assigned to sap material number. if on mobile device I run mm02 transaction code n trigger the gun can I get the material number in material number field . ( assume I have program which can fetch the material number from barcode/rfid number.) ? but to pass rfid number / barcode what should I do. I can write javascript and call that method but dont know weather I can use javascript or not in that.
to be simple:
How can I get barcode / rfid number to my sap transaction. if possible
please give me any suggestion. document link... help.... whatever may help me to understand this. I will greatly appreciate your reply
Thanking you
Regards
Naeem

Hi Ajay,
Please refer to note 1057759 for the delivered Drivers for Peripherals in SAP DOE. This lists all the supported barcode scanners for SAP Netweaver Mobile. Those derivers are certified after testing to work only with that device and OS configuration.
The Javadoc to get an idea about how to use those PIOS API for barcode scanner
http://help.sap.com/javadocs/nwmobile/SP3/laptops/com/sap/ip/me/api/pios/scanner/ScannerConnection.html
As input from Barcode scan have to be taken in Wedge Mode, there is no need to do any developments in MI JSP Application. To enable barcode scan one can download barcode scan tools available from Handheld Vendor sites
Regards,
Amith

Problem in MI integration with RFID

Hi All,
We are trying to integrate MI with RFID. For that we are using
WorkAboutPRO, PSION TEKLOGIX PDA with RFID reader.
on that we have installed-
CrEme 3.27a
MobileEngine jsp 2.5
DB2E 8.24
prifpsiwp_wm50_xsl_crm Driver Addon
connector_wm50_xsl_crm Connector
and our simple MI application which reads all tags in range.
When we are executing it in PC using Peripheral i/o emulator RFID2 its working fine.
But when we are trying to execute it on the RFID device its showing an exception as follows-
Error: 500
Location: /MIAPPLICATION/startInternal Servlet Error:
java.lang.NullPointerException
at miProjectPackage.MiProjectClass.readTag()
at miProjectPackage.MiProjectClass.doHandleEvent()
at com.sap.ip.me.api.runtime.jsp.AbstractMEHttpServlet.doGetNotThreadSafe()
at com.sap.ip.me.api.runtime.jsp.AbstractMEHttpServlet.doGet()
at com.sap.ip.me.api.runtime.jsp.AbstractMEHttpServlet.doPost()
at javax.servlet.http.HttpServlet.service()
at com.sap.ip.me.api.runtime.jsp.AbstractMEHttpServlet.service()
at javax.servlet.http.HttpServlet.service()
at org.apache.tomcat.core.ServletWrapper.doService()
at org.apache.tomcat.core.Handler.service()
at org.apache.tomcat.core.ServletWrapper.service()
at org.apache.tomcat.core.ContextManager.internalService()
at org.apache.tomcat.core.ContextManager.service()
at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection()
at org.apache.tomcat.service.TcpWorkerThread.runIt()
at org.apache.tomcat.util.ThreadPool$ControlRunnable.run()
at java.lang.Thread.run()
Kindly help.
Thanks & Regards,
Sahidur

Thanks for the reply.
In my case both Webcenter spaces and UCM are part of the same domain. But still i'm getting the error.
I'm able to login usnig AD user, Do i still need to configure JPS provider for webcenter spaces? Please help me what changes to be made to be able to search users while adding them to any newly created group space.
Please help.
Thanks

How to start/stop Event Mgr. and RFID information server?

I take over our form RFID admin (who quit) position.
I cannot find any document which tells me How to start/stop Event Mgr. and RFID information server.
Even the "Sun Java System RFID Software 3.0 Administration Guide" does not have this piece of info.
Would you please help? Points guaranteed. Thanks!

Ashley you are still not clear to me.
Please mention what applications are these??
Is it SAP Event Manager??
What is the RFID Information server??
Is it SAP based, or some other vendor??
How is the integration done?
Thanks

Java.lang.NoSuchMethodException: kodo.jdo.jdbc.JDOConnectionFactory. init

I am trying to update 3.x to 4.0.1
Cloning of JDOConnectionFactory is throwing following exception
(JDOConnectionFactory)pmf1.clone();
I had this working with 3.x the only difference was that JDBCConnectionFactory was being used instead of JDOConnectionFactory, and I have to use JDOConnectionFactory in 4.0.1 to get PersistenceManagerFactory.
com.solarmetric.util.ParseException: java.lang.NoSuchMethodException: kodo.jdo.jdbc.JDOConnectionFactory.<init>(boolean)
at com.solarmetric.conf.ConfigurationImpl.clone(ConfigurationImpl.java:752)
at com.bea.rfid.login.console.ejb.CredentialMapperBean.setSessionContext(CredentialMapperBean.java:125)
at com.bea.rfid.login.console.ejb.CredentialMapperEJB_ckhjzn_Impl.setSessionContext(CredentialMapperEJB_ckhjzn_Impl.java:124)
at weblogic.ejb.container.manager.StatelessManager.createBean(StatelessManager.java:296)
at weblogic.ejb.container.pool.StatelessSessionPool.createBean(StatelessSessionPool.java:174)
at weblogic.ejb.container.pool.StatelessSessionPool.getBean(StatelessSessionPool.java:105)
at weblogic.ejb.container.manager.StatelessManager.preInvoke(StatelessManager.java:143)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:133)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:81)
at weblogic.ejb.container.internal.StatelessEJBLocalObject.preInvoke(StatelessEJBLocalObject.java:48)

Thanks for the suggestion.
I updated to kodo-4.1.2 now, and still I am getting following exception
javax.ejb.EJBException: Error during setSessionContext: org.apache.openjpa.lib.util.ParseException: java.lang.NoSuchMethodException: kodo.jdo.jdbc.JDOConnectionFactory.<init>(boolean)
at org.apache.openjpa.lib.conf.ConfigurationImpl.clone(ConfigurationImpl.java:873)
at com.bea.rfid.login.console.ejb.CredentialMapperBean.setSessionContext(CredentialMapperBean.java:125)
at com.bea.rfid.login.console.ejb.CredentialMapperEJB_ckhjzn_Impl.setSessionContext(CredentialMapperEJB_ckhjzn_Impl.java:124)
at weblogic.ejb.container.manager.StatelessManager.createBean(StatelessManager.java:296)
at weblogic.ejb.container.pool.StatelessSessionPool.createBean(StatelessSessionPool.java:174)
at weblogic.ejb.container.pool.StatelessSessionPool.getBean(StatelessSessionPool.java:105)
at weblogic.ejb.container.manager.StatelessManager.preInvoke(StatelessManager.java:143)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:133)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:81)
at weblogic.ejb.container.internal.StatelessEJBLocalObject.preInvoke(StatelessEJBLocalObject.java:48)
at com.bea.rfid.login.console.ejb.CredentialMapperEJB_ckhjzn_ELOImpl.getPersistenceManager(CredentialMapperEJB_ckhjzn_ELOImpl.java:42)
at com.connecterra.epcis.server.ejb.EPCISBean.ejbCreate(EPCISBean.java:147)
at com.connecterra.epcis.server.ejb.EPCIS_9tvcog_Impl.ejbCreate(EPCIS_9tvcog_Impl.java:150)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at weblogic.ejb.container.pool.StatelessSessionPool.createBean(StatelessSessionPool.java:178)
at weblogic.ejb.container.pool.StatelessSessionPool.getBean(StatelessSessionPool.java:105)
at weblogic.ejb.container.manager.StatelessManager.preInvoke(StatelessManager.java:143)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:133)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:81)
at weblogic.ejb.container.internal.StatelessEJBLocalObject.preInvoke(StatelessEJBLocalObject.java:48)
at com.connecterra.epcis.server.ejb.EPCIS_9tvcog_ELOImpl.getAllSubscriptionInfo(EPCIS_9tvcog_ELOImpl.java:1304)
at com.connecterra.epcis.server.ejb.scheduler.SchedulerBean.refreshTimer(SchedulerBean.java:131)
at com.connecterra.epcis.server.ejb.scheduler.SchedulerBean.initializeTimer(SchedulerBean.java:98)
at com.connecterra.epcis.server.ejb.scheduler.SubscriptionScheduler_jm2ekz_ELOImpl.initializeTimer(SubscriptionScheduler_jm2ekz_ELOImpl.java:63)
at com.connecterra.epcis.server.schedulerservlet.SchedulerServlet.init(SchedulerServlet.java:32)
at javax.servlet.GenericServlet.init(GenericServlet.java:256)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:276)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:68)
at weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:58)
at weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:48)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:504)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1698)
at weblogic.servlet.internal.WebAppServletContext.loadServletsOnStartup(WebAppServletContext.java:1675)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1595)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:2734)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:892)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:336)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:200)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:117)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:26)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:641)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:229)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:154)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:80)
at weblogic.deploy.internal.targetserver.BasicDeployment.activate(BasicDeployment.java:181)
at weblogic.deploy.internal.targetserver.BasicDeployment.activateFromServerLifecycle(BasicDeployment.java:352)
at weblogic.management.deploy.internal.DeploymentAdapter$1.doActivate(DeploymentAdapter.java:52)
at weblogic.management.deploy.internal.DeploymentAdapter.activate(DeploymentAdapter.java:186)
at weblogic.management.deploy.internal.AppTransition$2.transitionApp(AppTransition.java:30)
at weblogic.management.deploy.internal.ConfiguredDeployments.transitionApps(ConfiguredDeployments.java:233)
at weblogic.management.deploy.internal.ConfiguredDeployments.activate(ConfiguredDeployments.java:169)
at weblogic.management.deploy.internal.ConfiguredDeployments.deploy(ConfiguredDeployments.java:123)
at weblogic.management.deploy.internal.DeploymentServerService.resume(DeploymentServerService.java:173)
at weblogic.management.deploy.internal.DeploymentServerService.start(DeploymentServerService.java:89)
at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
Caused by: java.lang.NoSuchMethodException: kodo.jdo.jdbc.JDOConnectionFactory.<init>(boolean)
at java.lang.Class.getConstructor0(Class.java:2647)
at java.lang.Class.getConstructor(Class.java:1629)
at org.apache.openjpa.lib.conf.ConfigurationImpl.clone(ConfigurationImpl.java:863)
... 68 more
; nested exception is: org.apache.openjpa.lib.util.ParseException: java.lang.NoSuchMethodException: kodo.jdo.jdbc.JDOConnectionFactory.<init>(boolean)
at weblogic.ejb.container.internal.EJBRuntimeUtils.throwEJBException(EJBRuntimeUtils.java:141)
at weblogic.ejb.container.internal.BaseLocalObject.handleSystemException(BaseLocalObject.java:657)
at weblogic.ejb.container.internal.BaseLocalObject.handleSystemException(BaseLocalObject.java:604)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:141)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:81)
Truncated. see log file for complete stacktrace
>
<Dec 22, 2006 3:58:34 PM EST> <Error> <Deployer> <BEA-149231> <Unable to set the activation state to true for the application 'WLRFID-EPCIS'.
weblogic.application.ModuleException: [HTTP:101216]Servlet: "SchedulerServlet" failed to preload on startup in Web application: "schedulerservlet".
javax.ejb.EJBException: Error during setSessionContext: org.apache.openjpa.lib.util.ParseException: java.lang.NoSuchMethodException: kodo.jdo.jdbc.JDOConnectionFactory.<init>(boolean)
at org.apache.openjpa.lib.conf.ConfigurationImpl.clone(ConfigurationImpl.java:873)
at com.bea.rfid.login.console.ejb.CredentialMapperBean.setSessionContext(CredentialMapperBean.java:125)
at com.bea.rfid.login.console.ejb.CredentialMapperEJB_ckhjzn_Impl.setSessionContext(CredentialMapperEJB_ckhjzn_Impl.java:124)
at weblogic.ejb.container.manager.StatelessManager.createBean(StatelessManager.java:296)
at weblogic.ejb.container.pool.StatelessSessionPool.createBean(StatelessSessionPool.java:174)
at weblogic.ejb.container.pool.StatelessSessionPool.getBean(StatelessSessionPool.java:105)
at weblogic.ejb.container.manager.StatelessManager.preInvoke(StatelessManager.java:143)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:133)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:81)
at weblogic.ejb.container.internal.StatelessEJBLocalObject.preInvoke(StatelessEJBLocalObject.java:48)
at com.bea.rfid.login.console.ejb.CredentialMapperEJB_ckhjzn_ELOImpl.getPersistenceManager(CredentialMapperEJB_ckhjzn_ELOImpl.java:42)
at com.connecterra.epcis.server.ejb.EPCISBean.ejbCreate(EPCISBean.java:147)
at com.connecterra.epcis.server.ejb.EPCIS_9tvcog_Impl.ejbCreate(EPCIS_9tvcog_Impl.java:150)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at weblogic.ejb.container.pool.StatelessSessionPool.createBean(StatelessSessionPool.java:178)
at weblogic.ejb.container.pool.StatelessSessionPool.getBean(StatelessSessionPool.java:105)
at weblogic.ejb.container.manager.StatelessManager.preInvoke(StatelessManager.java:143)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:133)
at weblogic.ejb.container.internal.BaseLocalObject.preInvoke(BaseLocalObject.java:81)
at weblogic.ejb.container.internal.StatelessEJBLocalObject.preInvoke(StatelessEJBLocalObject.java:48)
at com.connecterra.epcis.server.ejb.EPCIS_9tvcog_ELOImpl.getAllSubscriptionInfo(EPCIS_9tvcog_ELOImpl.java:1304)
at com.connecterra.epcis.server.ejb.scheduler.SchedulerBean.refreshTimer(SchedulerBean.java:131)
at com.connecterra.epcis.server.ejb.scheduler.SchedulerBean.initializeTimer(SchedulerBean.java:98)
at com.connecterra.epcis.server.ejb.scheduler.SubscriptionScheduler_jm2ekz_ELOImpl.initializeTimer(SubscriptionScheduler_jm2ekz_ELOImpl.java:63)
at com.connecterra.epcis.server.schedulerservlet.SchedulerServlet.init(SchedulerServlet.java:32)
at javax.servlet.GenericServlet.init(GenericServlet.java:256)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:276)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:68)
at weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:58)
at weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:48)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:504)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1698)
at weblogic.servlet.internal.WebAppServletContext.loadServletsOnStartup(WebAppServletContext.java:1675)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1595)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:2734)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:892)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:336)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:200)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:117)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:26)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:641)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:229)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:154)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:80)
at weblogic.deploy.internal.targetserver.BasicDeployment.activate(BasicDeployment.java:181)
at weblogic.deploy.internal.targetserver.BasicDeployment.activateFromServerLifecycle(BasicDeployment.java:352)
at weblogic.management.deploy.internal.DeploymentAdapter$1.doActivate(DeploymentAdapter.java:52)
at weblogic.management.deploy.internal.DeploymentAdapter.activate(DeploymentAdapter.java:186)
at weblogic.management.deploy.internal.AppTransition$2.transitionApp(AppTransition.java:30)
at weblogic.management.deploy.internal.ConfiguredDeployments.transitionApps(ConfiguredDeployments.java:233)
at weblogic.management.deploy.internal.ConfiguredDeployments.activate(ConfiguredDeployments.java:169)
at weblogic.management.deploy.internal.ConfiguredDeployments.deploy(ConfiguredDeployments.java:123)
at weblogic.management.deploy.internal.DeploymentServerService.resume(DeploymentServerService.java:173)
at weblogic.management.deploy.internal.DeploymentServerService.start(DeploymentServerService.java:89)
at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
Caused by: java.lang.NoSuchMethodException: kodo.jdo.jdbc.JDOConnectionFactory.<init>(boolean)
at java.lang.Class.getConstructor0(Class.java:2647)
at java.lang.Class.getConstructor(Class.java:1629)
at org.apache.openjpa.lib.conf.ConfigurationImpl.clone(ConfigurationImpl.java:863)
... 68 more

Can I programming smart labels (or tags) with java?

I have a question.
Can I programming smart labels (or tags) with java?
I am doing an investigation over smart tags or label, but I don't know how programming the tags or that lenguage i can use to write or read information in the tags.
please, help me....
contact me:
[email protected]
[email protected]

There are 2 approches.
1. you can directly read and write through RFID Programmer or use a middleware. The RFID Programmer probably comes with a driver that you can only access from C. If you want to do it from Java, you will have to use native code. The problem with this approch is that you are tied to one particular hardware.
2. Use a RFID platform like the one Sun has.
http://wwws.sun.com/software/solutions/rfid/
Sun provides an API in Java and you can use the API in your application. The RFID platform supports multiple hardware and so will your application.

RFID Tags and Readers

I would like to know the implementation/development process of RFID Tags and Readers.
Is there any referece hardware architecture by which i can develop RFID readers with CDC/CLDC kit and use Java RFID software.
Or is there any RFID tag and reader referece platform available to have CDC/CLDC kit with Java RFID software.

I think you will get better answers if you post this to a forum that is for Flash. This one is for Director. Anyway, you can probably not stop it from reading a tag more than once. But you can store the last tag in an array, along with the time it was scanned. Then, before you do anything with this info, you would compare it to that array and if it is the same as the last scan, and the time is less than 3 seconds, then ignore it and don't do anything. If it is different or if it is more than 3 seconds, then do whatever you need to with the tag.

RFID in JAVA

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