Casting object refrences in java
hello
i am stuck with a problem.i need a solution from you guys out there.i want to know how to cast object references in java.please provide me with a sampe code that does object casting.i need it very urgently.i hope you guys will help me in this matter and do the needful.
thanks & regards
vikamgdg
This may be a bit premature, but I call troll.
http://forum.java.sun.com/thread.jsp?thread=538948&forum=31
http://forum.java.sun.com/thread.jsp?thread=538801&forum=31
http://forum.java.sun.com/thread.jsp?thread=538785&forum=31
If vikramgdg doesn't actually possess the "Troll-nature"™, it needs to read "How To Ask Questions The Smart Way".
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... 58 more
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at java.math.BigDecimal.<init>(BigDecimal.java:728)
at oracle.jbo.common.JboTypeMapEntries$2.convert(JboTypeMapEntries.java:129)
... 76 more
Please can you let me know how I can resolve this issue.
ThanksHi, I have rechecked this issue. In the bug they say that Big Integer should be changed to Big Decimal to resolve the issue. I checked my application and saw that there is no Big Interger. Please can you guide me further.
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at oracle.toplink.sessions.DatabaseLogin.connect(Unknown Source)
at oracle.toplink.internal.databaseaccess.DatabaseAccessor.connect(Unknown Source)
at oracle.toplink.internal.databaseaccess.DatabaseAccessor.connect(Unknown Source)
at oracle.toplink.threetier.ConnectionPool.buildConnection(Unknown Source)
at oracle.toplink.threetier.ConnectionPool.startUp(Unknown Source)
at oracle.toplink.threetier.ServerSession.connect(Unknown Source)
at oracle.toplink.publicinterface.DatabaseSession.login(Unknown Source)
at oracle.toplink.tools.sessionmanagement.SessionManager.getSession(Unknown Source)
at oracle.toplink.tools.sessionmanagement.SessionManager.getSession(Unknown Source)
at com.configurator.datasource.ToplinkClientSessionManager.<init>(ToplinkClientSessionManager.java:18)
at com.configurator.datasource.ToplinkClientSessionManager.getInstance(ToplinkClientSessionManager.java:33
at com.configurator.persistence.PersistenceManagerImpl.<init>(PersistenceManagerImpl.java:16)
at com.configurator.ConfiguratorServiceMediatorImpl.getModelsFromDB(ConfiguratorServiceMediatorImpl.java:3
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 org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:384)
at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:281)
at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:319)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:450)
at org.apache.axis.server.AxisServer.invoke(AxisServer.java:285)
at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:653)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:301)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:765)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:790)
at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
at java.lang.Thread.run(Thread.java:595)
code:
initialContext = new InitialContext();
LocalStatelessREHome localHome = (LocalStatelessREHome)initialContext.lookup("java:comp/env/StatelessREBean");
in web.xml:
<ejb-local-ref>
<ejb-ref-name>StatelessREBean</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<local-home>com.re.stateless.ejb.LocalStatelessREHome</local-home>
<local>com.re.stateless.ejb.LocalStatelessRE</local>
<ejb-link>StatelessREBean</ejb-link>
</ejb-local-ref>
Any help will be appreciated! Thanks in advance.Try removing the JNDI fully qualified name (i.e. java:comp\env\) Use the name of your bean to lookup.
It worked for me when i used to get a similar exception. -
Unable to cast object of type 'Oracle.DataAccess.Types.OracleDecimal'......
I have some Oracle Tables with sequences for primary key and stored procs in packages to wrap up the insert commands. The sequences field are all declared as NUMBER.
I also have Datasets based on the tables and a DataAdapter for each package. The Datasets see the primary keys as System.Decimal. The DataAdapter sees the output primary key parameter to the stored procs as OracleDecimal.
tmp.Parameters.Add(new OracleParameter("P_ID", Oracle.DataAccess.Client.OracleDbType.Decimal, ParameterDirection.Output));
tmp.Parameters["P_ID"].SourceColumn = "ID";
When I call the Update on the DataAdapter the update happens on the DB and then I get the following error
System.ArgumentException : Unable to cast object of type 'Oracle.DataAccess.Types.OracleDecimal' to type 'System.IConvertible'.Couldn't store <231> in ID Column. Expected type is Decimal.
----> System.InvalidCastException : Unable to cast object of type 'Oracle.DataAccess.Types.OracleDecimal' to type 'System.IConvertible'.
If I change the Oracle parameter to Oracle.DataAccess.Client.OracleDbType.Int32 or Oracle.DataAccess.Client.OracleDbType.Int64 it works fine - any ideas why that would be ? I would expect System.Decimal to map to Oracle.DataAccess.Types.OracleDecimal.Hi,
If I change the Oracle parameter to Oracle.DataAccess.Client.OracleDbType.Int32 or Oracle.DataAccess.Client.OracleDbType.Int64 it works fine - any ideas why that would be ? I would expect System.Decimal to map to Oracle.DataAccess.Types.OracleDecimal.
I'm trying to do the same, but no matter what I do, I get the OracleDecimal error. Parameter is defined as:
bq. this._adapter.InsertCommand = new global::Oracle.DataAccess.Client.OracleCommand(); \\ this._adapter.InsertCommand.Connection = this.Connection; \\ this._adapter.InsertCommand.CommandText = "INSERT INTO PERSON\r\n (ID, SURNAME, NAME, BIRTHCITY, EMSO)\r\nV" + \\ +"ALUES (:ID, :SURNAME, :NAME, :BIRTHCITY, :EMSO) RETURNING ID INTO :ID";+ \\ this._adapter.InsertCommand.CommandType = global::System.Data.CommandType.Text; \\ param = new global::Oracle.DataAccess.Client.OracleParameter(); \\ param.ParameterName = "ID"; \\ param.DbType = global::System.Data.DbType.Int32; \\ param.OracleDbType = global::Oracle.DataAccess.Client.OracleDbType.Int32; \\ param.Direction = global::System.Data.ParameterDirection.Output; \\ param.IsNullable = true; \\ param.SourceColumn = "ID"; \\ this._adapter.InsertCommand.Parameters.Add(param);
But no luck... -
Unable to cast object of type OracleXmlType to type XmlDocument
Hello All:
I have an Oracle Procedure that is taking an XML Document as an output parameter.
oCommand.Parameters.Add("errorrecord", OracleDbType.XmlType).Value = System.DBNull.Value;
oCommand.Parameters["errorrecord"].Direction = System.Data.ParameterDirection.Output;
When I try to cast this as an XmlDocument so I can set it to my ErrorRecord variable (defined as XmlDocument) and pass it back out of the Web-Service
ErrorRecord = (XmlDocument)oCommand.Parameters["p_errorrecord"].Value;
I get the following error: "Unable to cast object of type 'Oracle.DataAccess.Types.OracleXmlType' to type 'System.Xml.XmlDocument'"
How do I cast / convert the Oracle XMLType back to a .Net XMLDocument to pass out of the function?
ThanksNo, I have not tried that yet, but I admit I don't fully understand the syntax in the document posted.
oCommand.Parameters.Add("p_errorrecord", OracleDbType.XmlType).Value = System.DBNull.Value;
ErrorRecord = GoCommand.Parameters["errorrecord"].Value; (this is returned as XmlType)
I don't quite understand the syntax in the posted URL:
Declaration
// C#
public XmlDocument GetXmlDocument();
How am I to use this to get the XMLDocument? -
Unable to cast object of type InfoObject to DestinationPlugin
I have created a web application to show the list of scheduled reports and with their destination Info using Business objects sdk. Locally on my computer i am able to show all the reports and the Ftp information. But when i move this application to QA server the application returns an error with a message.
"Unable to cast object of type 'CrystalDecisions.Enterprise.InfoObject' to type 'CrystalDecisions.Enterprise.DestinationPlugin"
I have noticed that the returned type of Object by the query on QA server is of type "InfoObject" and on localbox "CrystalDecisions.Enterprise.Dest.Ftp"
Query
Select * from ci_systemobjects where SI_NAME= ''", "CrystalEnterprise.Ftp"
Assemblies required by application are registered in the GAC with same version and same public token
Please let me know if anyone has a answer for this casting exception.Snippet:
Dim ftp As New Ftp(infoObject.PluginInterface)
Dim ftpOptions As New FtpOptions(ftp.ScheduleOptions)
You wouldn't be doing a direct runtime cast.
Sincerely,
Ted Ueda -
Unable to cast object of type 'System.Xml.XmlText' to type 'System.Xml.XmlE
Hi All,
We just migrated from BPC 5.1 to BPC 7.0 SP6. But when we want to run a package in the data manager we get the following error:
Exception Text **************
System.InvalidCastException: Unable to cast object of type 'System.Xml.XmlText' to type 'System.Xml.XmlElement'.
at OSoft.Consumers.DataMgr.PackageModify50.PackageDetail.LoadDetail(String strXMLString)
at OSoft.Consumers.DataMgr.PackageModify50.PackageDetail.GetPackageDetailfromServer(String strPackageName, String strPackageFilePath, String strTeamID)
at OSoft.Consumers.DataMgr.PackageModify50.frmMain.PackageListClickEvent(String strPackageID, String strPackageFileName, String strTeamID)
at OSoft.Consumers.DataMgr.PackageModify50.frmMain.SetStartUp()
at OSoft.Consumers.DataMgr.PackageModify50.frmMain.frmMain_Load(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
Any idea?
Br
StevenHi,
If you were running 5.1 version, that would also mean that you were running packages under SQL 2005.
And if you are now running SQL 2008 with BPC 7.0, you should also review all your customized packages. In fact, BPC tasks in SSIS are not the same between SQL 2005 and SQL 2008.
In addition, I would recommend to upgrade your SQL server version to SQL 2008 SP1 cumulative update package 6 (prerequisite). Not sure if you're still running this CU.
Hope this will help.
Best Regards,
Patrick
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