Sun RPC - Java libraries (non XML based)

We are looking at replacing and existing Proprietary (Distinct) RPC interface with a Sun RPC (non-xml based) version. I've seen mentioned somewhere about the sun.sunrpc.* package but can't find anything else about it.
Something like rpcgen for java.
Your help will be much appreciated.

I think you mean RMI - Remote Method Invocation. No XML.

Similar Messages

Sun RPC - Java libraries (non XML)

We are looking at replacing and existing Proprietary (Distinct) RPC interface with a Sun RPC (non-xml based) version. I've seen mentioned somewhere about the sun.sunrpc.* package but can't find anything else about it.
Something like rpcgen for java.
Your help will be much appreciated.

I think you mean RMI - Remote Method Invocation. No XML.

RPC (non-xml based) for java

We are looking at replacing and existing Proprietary (Distinct) RPC interface with a Sun RPC (non-xml based) version. I've seen mentioned somewhere about the sun.sunrpc.* package but can't find anything else about it.
Something like rpcgen for java.
Your help will be much appreciated.

I think you mean RMI - Remote Method Invocation. No XML.

Unable to validate a java.util.Properties XML based File

I cannot for the life of me figure out what is wrong with this xml file, but it fails the validation of java.util.Properties and as such won't be parsed in. Help!
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
<properties version="1.0">
<entry key="bottleneckServer.address"></entry>
<entry key="bottleneckServer.port">8206</entry>
<entry key="bottleneckServer.confirmDelay">10</entry>
<entry key="bottleneckServer.cleanupDelay">120</entry>
</properties>Thanks in advance!

This xml file works perfectly.
Here is some test code:
 Properties p = new Properties();
 p.loadFromXML(getClass().getClassLoader().getResourceAsStream("someFilePath/someFileName.xml"));
 assert "8206".equals(p.getProperty("bottleneckServer.port")) : "Property 'bottleneckServer.port' != 8206";

Sun 7410 XML/RPC Java client

Hi,
Trying to make use of the XML/RPC which gives through the CLI on Sun 7410.
raw => Make raw XML-RPC calls
Again on raw I don't see any commands
ss_sun:raw> help
Subcommands that are valid in this context:
help [topic] => Get context-sensitive help. If [topic] is specified,
it must be one of "builtins", "commands", "general",
"help" or "script".
show => Show information pertinent to the current context
done => Finish operating on "raw"
ss_sun:raw>
I have written a sample java code and using the jar file tried to run.
But some basic thing I am missing could you please help anyone on it.
The command I want to execute the command status show.
I tried many way but I could not do it
The client code is
import java.util.Vector;
import org.apache.xmlrpc.XmlRpcClient;
public class TestClient {
public static void main( String args[] ) throws Exception {
XmlRpcClient client = new XmlRpcClient( "https://x.y.z.a:215/" );
client.setBasicAuthentication("login", "passwd");
Vector params = new Vector();
// params.addElement( "raw" );
// params.addElement( "status" );
params.addElement( "show" );
Object result = client.execute( "status", params );
if ( result != null )
System.out.println( "Successfully done." );
I am using xmlrpc-1.1.jar
Any help on it I appriciate.
Thanks & Regds,
tmohanta

Hi Satish !!!
Thanks for your answer!!!
I add com.sap.security.api.sda to classpat...is that what you mean with "i.e UME API"??? IF it's so still doesn't work... do you have any other suggestions?? it's very important, pls...
Best Regards
Walex

RPC and XML based ?

Hi
We are in mid of confusion :-) between confusion between JAX RPC and XML based
web services. Now as i understand there are 2 ways of doing web service
1) JAX RPC
2) JAXM
My questiuon when do we use each of them and which would be deciding factor ?
Also say i make a service using java and servicegen. Deploy on weblogic 7.0. I
have my WSDL in place. Now can any client ( C or .NET) access my webservice as
far as they are able to grab my WSDL ?
DO we have tools like WSDL2JAVA for other languages. WSDL2C or WSDL2NET etc.
I am be too offf but am confused and need something to go ahead with weblogic
and java based sewrvice.
Thanks

To keep it simple, JAX-RPC provides an API for building web services and web service
clients that use RPC and XML. While JAXM is an API for XML-based messaging, where
using a messaging provider you can send/receive SOAP messages.
JAXM is used when you are doing a messaging (a la JMS or JavaMail) with SOAP messages.
I would suggest to refer to the following links for good starter course on web
services :
http://java.sun.com/webservices/docs/1.1/tutorial/doc/
http://dev2dev.bea.com/technologies/webservices/tutorials.jsp
In BEA WebLogic we provide "wsdl2service", which is an Ant task that takes as
input an existing WSDL file, and generates the following WebLogic Web service
components:
- the web-services.xml deployment descriptor file
- a Java source file that partially implements the Web service.
Now we probably we could have utilities provided by other vendors to generate
service components in a certain implementation from a WSDL.
Regards
Shridhar
"pranav" <[email protected]> wrote:
>
Hi
We are in mid of confusion :-) between confusion between JAX RPC and
XML based
web services. Now as i understand there are 2 ways of doing web service
1) JAX RPC
2) JAXM
My questiuon when do we use each of them and which would be deciding
factor ?
Also say i make a service using java and servicegen. Deploy on weblogic
7.0. I
have my WSDL in place. Now can any client ( C or .NET) access my webservice
as
far as they are able to grab my WSDL ?
DO we have tools like WSDL2JAVA for other languages. WSDL2C or WSDL2NET
etc.
I am be too offf but am confused and need something to go ahead with
weblogic
and java based sewrvice.
Thanks

Can a Java Mapping be used on non-xml data

I would like to use a java mapping to transform non-xml formatted data to an IDOC or XML format.
1) Does the input or output of a Java Map have to be XML.
2) If possible can the test feature be used to load and test a non-xml data file.
3) Any comments or lessons learned in this area.

Hi Johan,
below are some suggestions for your scenario:

1) Structured flat picked up using J2EE FTP adapter.
Indeed; you can use the file adapter to receive/retrieve this file from "any" third party system.
2) Structured flat converted to XML (Using JAVA mapping?)
When you send any message to XI, it's the adapter's task to convert this message into a XI understandable format i.e. SOAP. So the flat file to XML conversion is not your concern.
However, if you need to perform any data transformation (input file to IDOC) then you can opt for XSLT (XML stylesheets), Java mappings or the XI mapping tool within the repository. Based on my own experience with IDOC mapping, I can tell you that XSLT and/or Java mapping is the best way to achieve this kind of mapping.
3) XML mapped to SAP IDoc using graphical editor.
See comments point 2)
Cheers,
Rob.
Message was edited by: Rob Viana

Java source code to compare XML based on ExamXML XML diff tool

I’m working on a project that includes comparing XML files and I need a source code on Java to compare XML fragments.
I’m using ExamXML from http://www.a7soft.com to compare XML files but I need the Java source code.
Can anybody help me.

You didn't notice there's a "Support" link on that page you referred to? Ask them for the source code. If they won't give it to you, then you are effectively asking us to give you a stolen copy of it. Don't ask for such things on this site.

Identity SSO API with non-web based appilcations

hi,
i can appreciate hwo this works with cookies etc for web based applications that use the api or one of the agents on apache etc.
but how does it go with non web based java and say windows applications?
can anyone point me to some docs?
thanks

I don't work for Sun but here are my thoughts
1. Yes, if you don't want to use the AM SDK then the
XML auth service is the way to go.
2 & 3. dunno
4. I think if you pass around the SSOToken ID
generated by AM then any application can issue a SAML
query to see if the session is still valid and get
identity/auth attributes back
5. I think SAML 2.0 supports authentication and
single signoff
6. If you are doing a lot of thick client apps you
should use kerberos instead of AM web based
Authentication. AM supports kerberos authentication,
most modern browsers support SPEGNO for passing
credentials to web server, AD supports Kerberos, and
even Solaris 10 comes with a free KDC built into the
OS. There is plenty of documentation around kerberos
and the JDK out of the box supports GSS-API for
Kerberos authenticationThank you for your feedback.
We looked at the use of kerberos as well, but this is not really an option as we are dealing with fat clients installed on desktops of clients. So these desktops do not fall within our span control (multiple domain controllers etc.).
Regards,
Thomas

How to use/access XML based DVMs in ODI 11.1.1.5.0

Hi All,
I want to use XML based DVMs in interface on ODI 11.1.1.5.0.
I have tried something like this. However while "Load Data" step, i am facing the error "
-4850 : 3F000 : java.sql.SQLException: invalid schema name: CURRENCYCODE
java.sql.SQLException: invalid schema name: CURRENCYCODE
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCPreparedStatement.<init>(Unknown Source)
at org.hsqldb.jdbc.JDBCConnection.prepareStatement(Unknown Source)
at com.sunopsis.jdbc.driver.xml.SnpsXmlConnection.prepareStatement(SnpsXmlConnection.java:1192)
at sun.reflect.GeneratedMethodAccessor314.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at oracle.odi.core.datasource.dwgobject.support.OnConnectOnDisconnectDataSourceAdapter$OnDisconnectCommandExecutionHandler.invoke(OnConnectOnDisconnectDataSourceAdapter.java:200)
at $Proxy138.prepareStatement(Unknown Source)
at oracle.odi.runtime.agent.execution.sql.SQLCommand.doInitializeStatement(SQLCommand.java:83)
at oracle.odi.runtime.agent.execution.sql.SQLCommand.getStatement(SQLCommand.java:117)
at oracle.odi.runtime.agent.execution.sql.SQLCommand.getStatement(SQLCommand.java:111)
at oracle.odi.runtime.agent.execution.sql.SQLDataProvider.readData(SQLDataProvider.java:76)
at oracle.odi.runtime.agent.execution.sql.SQLDataProvider.readData(SQLDataProvider.java:1)
at oracle.odi.runtime.agent.execution.DataMovementTaskExecutionHandler.handleTask(DataMovementTaskExecutionHandler.java:67)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.processTask(SnpSessTaskSql.java:2906)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.treatTask(SnpSessTaskSql.java:2609)
at com.sunopsis.dwg.dbobj.SnpSessStep.treatAttachedTasks(SnpSessStep.java:537)
at com.sunopsis.dwg.dbobj.SnpSessStep.treatSessStep(SnpSessStep.java:453)
at com.sunopsis.dwg.dbobj.SnpSession.treatSession(SnpSession.java:1740)
at com.sunopsis.dwg.dbobj.SnpSession.treatSession(SnpSession.java:1595)
at oracle.odi.runtime.agent.processor.impl.StartScenRequestProcessor$2.doAction(StartScenRequestProcessor.java:580)
at oracle.odi.core.persistence.dwgobject.DwgObjectTemplate.execute(DwgObjectTemplate.java:214)
at oracle.odi.runtime.agent.processor.impl.StartScenRequestProcessor.doProcessStartScenTask(StartScenRequestProcessor.java:513)
at oracle.odi.runtime.agent.processor.impl.StartScenRequestProcessor$StartScenTask.doExecute(StartScenRequestProcessor.java:1070)
at oracle.odi.runtime.agent.processor.task.AgentTask.execute(AgentTask.java:123)
at oracle.odi.runtime.agent.support.DefaultAgentTaskExecutor$2.run(DefaultAgentTaskExecutor.java:82)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.hsqldb.HsqlException: invalid schema name: CURRENCYCODE
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.SchemaManager.getSchemaHsqlName(Unknown Source)
at org.hsqldb.SchemaManager.getSchemaName(Unknown Source)
at org.hsqldb.Session.getSchemaName(Unknown Source)
at org.hsqldb.SchemaManager.getTable(Unknown Source)
at org.hsqldb.ParserDQL.readTableName(Unknown Source)
at org.hsqldb.ParserDQL.readTableOrSubquery(Unknown Source)
at org.hsqldb.ParserDQL.XreadTableReference(Unknown Source)
at org.hsqldb.ParserDQL.XreadFromClause(Unknown Source)
at org.hsqldb.ParserDQL.XreadTableExpression(Unknown Source)
at org.hsqldb.ParserDQL.XreadQuerySpecification(Unknown Source)
at org.hsqldb.ParserDQL.XreadSimpleTable(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryPrimary(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryTerm(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryExpressionBody(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryExpression(Unknown Source)
at org.hsqldb.ParserDQL.compileCursorSpecification(Unknown Source)
at org.hsqldb.ParserCommand.compilePart(Unknown Source)
at org.hsqldb.ParserCommand.compileStatement(Unknown Source)
at org.hsqldb.Session.compileStatement(Unknown Source)
at org.hsqldb.StatementManager.compile(Unknown Source)
at org.hsqldb.Session.execute(Unknown Source)
... 27 more"
Steps followed:
1. Created data server with below values.
JDBS Driver : com.sunopsis.jdbc.driver.xml.SnpsXmlDriver
JDBC URL : jdbc:snps:xml?f=/appl/oracle/dev/fmw/11g/product/Oracle_ODI1/oracledi/xml_odi/CURRENCY95CODE.xml&s=CURRENCYCODE&case_sens=true
2. Created a physical schemas out of it and passed SCHEMA as "CURRENCYCODE". Please note that it dint showup automatically. I had to type the schema name "CURRENCYCODE".
3. Implemented logic in interface and facing the above error when tried executing interface at "Load Data" step.
Note : Test Connection is working fine. And i have all the permissions to execute.
Kindly suggest the right way if i am doing something wrong.

Hello,
Your filemaker install should have come with a jdbc driver (.jar file). You'll need to check your filemaker pro documentation to confirm. Once you have the file, place it in the ODI/oracledi/agent/drivers folder where your agent lives (also place it on your client if you want to use the local agent for testing). You can then create a custom Technology in the Topology tab in ODI.
There are many options in the Technology definition which you will need to figure out based on what filemaker pro can handle and how it processes queries. Once the technology is created, add a Data Server and Physical Schema as you would any other technology. Then, build the model, datastores, interfaces, etc. just like any other tech.
Hope this gets you started.
Thank you,
Michael R.

How to register non-wsdl based URL in OEG

How do we register a non-wsdl based URL endpoint in OEG? We had no problem registering a simple WSDL based endpoint on an OEG server. However we cannot find documentation on how to secure/register a RESTful or JSON – URL based service (SOAP, XML over HTTP type service).
Does this functionality exist? Or are there best practices on what to do with OEG for these types of services?
Our use case looks like:
Akamai - - > OEG - -> OSB (WSDL, RESTful, JSON type web services) - -> .Net service (WSDL, RESTful, JSON type web services)

In case of REST and other non-WSDL type services, there is no SOAP/WSDL based web service like registration process, you'd use OEG as the proxy. You can receive REST based requests at OEG, retrieve parameters (there are convenience filters available for retrieval of attribute values and other types of REST related functions in OEG, as part of the Policy library, "Extract REST Request Attribute", "Validate REST filter", "Create REST Request" etc. - search for REST at the top using Policy Studio, drag it on to canvas and click help for docs on these filters) and do the routing to actual REST end point services. You have the option to receive and use the SOAP message as a basis of generation of the REST url.
REST to SOAP - http://www.soatothecloud.com/2008/11/how-to-convert-from-rest-to-soap.html
SOAP to REST - http://markoneill.sys-con.com/node/1989916
On use with JSON: you can convert XML to JSON on the outbound side to serve mobile clients etc. using script based(standard XSLT) conversions at the gateway. Conversions to Java using google gson library is also an option.
To register a REST service, simply map the path (e.g. "/MyRESTService") to the policy you're using to process the REST request.
Let's say you want to simply route a REST request through OEG (e.g. - to OSB). You would create a policy (right-click on "Policies" and add it). Drag in a "Static Router" filter and place in it the hostname and port of the host you want to route to (e.g. - to OSB). Then right-click on it and choose "Set as start" so that it is the first thing which is processed for this REST request. Then drag in a "Connection" filter, and chain it (using a green arrow) after the Static Router filter. The "Connection" filter actually makes the connection to the backend host.
Now, map the path (using "Add Relative Path") to the service so that if a REST request to "/MyRESTService" or "/MyRESTService/something" comes into OEG, it is routed on to the backend host.
Deploy your policy (using F6 or the "deploy" button on the Policy Studio toolbar). Then send in your REST request.
There is actually already a simple REST service setup on OEG, called "healthcheck". If you point a browser to http://<OEG_IP_ADDRESS:8080/healthcheck" then this is run.
If the backend REST service returns JSON, the response JSON will simply be sent back through OEG.

JAX-RPC - dynamic wsdl - non-built-in data types

I thought my recent exp with developing a JAX-RPC client using a dynamic wsdl to communicate to a non-weblogic Web Service might help somebody out there. :-)
JAX-RPC Mechanism in Weblogic for dynamic_wsdl seems to work only with built-in data types. Weblogic also supports non-built-in data types, but you need to do some extra work! For the user-defined objects, you need to generate their types and register them.
Note: The samples given in Weblogic 8.1 do not use non-built-in data types!
Make sure you use the ant task "autotype" in your build.xml to generate the appropriate types (objects to support java-xml and xml-java converstion), types.xml from the wsdl. Register the types.xml file in your calling client code.
If you do not use register the types for the user-defined classes used in the web services method signatures, then you are likely to get the foll. exception.
javax.xml.soap.SOAPException: failed to serialize interface javax.xml.soap.SOAPElementw
eblogic.xml.schema.binding.SerializationException: mapping lookup failure. class=interface javax.xml
.soap.SOAPElement class context=TypedClassContext{schemaType=['http://svcVodafonePooled.wsdlgen.jipi
lot.vodafone.com']:getStock}
C:\Tutorial\WS\dynamic_wsdl>ant run
Buildfile: build.xml
run:
[java] Creating the service...
[java] Creating the call...
[java] invoking the call....
[java] javax.xml.rpc.JAXRPCException: failed to invoke operation 'getStock' due to an error in
the soap layer (SAAJ); nested exception is: Message[ failed to serialize interface javax.xml.soap.SO
APElementweblogic.xml.schema.binding.SerializationException: mapping lookup failure. class=interface
javax.xml.soap.SOAPElement class context=TypedClassContext{schemaType=['http://svcVodafonePooled.ws
dlgen.jipilot.vodafone.com']:getStock}]StackTrace[
[java] javax.xml.soap.SOAPException: failed to serialize interface javax.xml.soap.SOAPElementw
eblogic.xml.schema.binding.SerializationException: mapping lookup failure. class=interface javax.xml
.soap.SOAPElement class context=TypedClassContext{schemaType=['http://svcVodafonePooled.wsdlgen.jipi
lot.vodafone.com']:getStock}
[java] at weblogic.webservice.core.DefaultPart.invokeSerializer(DefaultPart.java:328)
[java] at weblogic.webservice.core.DefaultPart.toXML(DefaultPart.java:297)
[java] at weblogic.webservice.core.DefaultMessage.toXML(DefaultMessage.java:645)
[java] at weblogic.webservice.core.ClientDispatcher.send(ClientDispatcher.java:206)
[java] at weblogic.webservice.core.ClientDispatcher.dispatch(ClientDispatcher.java:143)
[java] at weblogic.webservice.core.DefaultOperation.invoke(DefaultOperation.java:457)
[java] at weblogic.webservice.core.DefaultOperation.invoke(DefaultOperation.java:443)
[java] at weblogic.webservice.core.rpc.CallImpl.invoke(CallImpl.java:558)
[java] at weblogic.webservice.core.rpc.CallImpl.invoke(CallImpl.java:411)
[java] at Main.main(Main.java:61)
[java] Caused by: weblogic.xml.schema.binding.SerializationException: mapping lookup failure. c
lass=interface javax.xml.soap.SOAPElement class context=TypedClassContext{schemaType=['http://svcVod
afonePooled.wsdlgen.jipilot.vodafone.com']:getStock}
[java] at weblogic.xml.schema.binding.RuntimeUtils.lookup_serializer(RuntimeUtils.java:151)
[java] at weblogic.xml.schema.binding.RuntimeUtils.invoke_serializer(RuntimeUtils.java:187)
[java] at weblogic.xml.schema.binding.RuntimeUtils.invoke_serializer(RuntimeUtils.java:174)
[java] at weblogic.webservice.core.DefaultPart.invokeSerializer(DefaultPart.java:324)
[java] ... 9 more
[java] ]
[java] at weblogic.webservice.core.rpc.CallImpl.invoke(CallImpl.java:578)
[java] at weblogic.webservice.core.rpc.CallImpl.invoke(CallImpl.java:411)
[java] at Main.main(Main.java:61)
[java] Exception in thread "main"
[java] Java Result: 1

The foll. code worked fine for me in Weblogic 8.1 SP3, on Windows 2000.
Note: the 2 important lines of code:
TypeMappingRegistry registry service.getTypeMappingRegistry();
registry.registerDefault(new DefaultTypeMapping("types.xml"));
package auth;
import java.net.URL;
import javax.xml.rpc.ServiceFactory;
import javax.xml.rpc.Service;
import javax.xml.rpc.Call;
import javax.xml.rpc.ParameterMode;
import javax.xml.namespace.QName;
import javax.xml.rpc.encoding.TypeMapping;
import javax.xml.rpc.encoding.TypeMappingRegistry;
import weblogic.webservice.core.encoding.stream.SOAPElementCodec;
import javax.xml.rpc.encoding.*;
import weblogic.webservice.encoding.DefaultTypeMapping;
public class DClient1 {
static private void print(String msg) {
     System.out.println("DClient1: " + msg);
public static void main(String[] argv) throws Exception {
System.setProperty("javax.xml.soap.MessageFactory", "weblogic.webservice.core.soap.MessageFactoryImpl");
System.setProperty( "javax.xml.rpc.ServiceFactory", "weblogic.webservice.core.rpc.ServiceFactoryImpl");
ServiceFactory factory = ServiceFactory.newInstance();
String targetNamespace = "http://www.vishwa.com/amazingworld";
QName serviceName = new QName(targetNamespace, "GeminiPasswordService");
QName portName = new QName(targetNamespace, "GeminiPasswordServicePort");
QName operationName = new QName("", "checkPassword");
URL wsdlLocation = new URL("http://localhost:7001/GeminiPasswordService/GeminiPasswordService?WSDL");
     print("Creating the service...");
Service service = factory.createService(wsdlLocation, serviceName);
     print("Creating the call...");
Call call = service.createCall(portName, operationName);
     TypeMappingRegistry registry = service.getTypeMappingRegistry();
     registry.registerDefault(new DefaultTypeMapping("types.xml"));
     print("invoking the call....");
Object[] inParams = new Object[2];
inParams[0] = "clark1";
inParams[1] = "kent1";
Object result = call.invoke(inParams);
print("Client return value: = " + result.toString());
QName operationName1 = new QName("", "getBook");
print("Creating the call...");
Call call1 = service.createCall(portName, operationName1);
print("invoking the call....");
Name n = new Name();
     n.setFirstname("Walker");
     n.setAge(50);
     Object[] inParams1 = new Object[1];
     inParams1[0] = n;
Book b = (Book) call1.invoke(inParams1);
print("author: " + b.getAuthor());
print("money: " + b.getMoney());
}

Session Facade and Access to a Non SQL Based Persistent Data Store

Hi,
We are currently using jDeveloper 10.1.3.5 and Oracle Application Server 10.1.3.5. We develop all our applications as Java portlets using Oracle PDK and they are exposed through Oracle Portal.
In our environment, the persistent data is stored on a combination of an Oracle database and a non SQL based persistent data store.
The way we access the non SQL persistent data store is by posting a URL and receiving an XML document back in response. This mechanism is used both for enquiry and update of the persistent store.
We have to create a new XML schema for each entity that we need to access and there are software changes on both our environment (Java) and the non SQL based persistent data store.
In an attempt to shorten development times we are looking to start using ADF faces and EJB3.
We have downloaded the SRDemo tutorial and made it work but there are some challenges.
1. The SRDemo seem to have a very minimal implementation of a business layer. From what I can see, it is essentially some straightforward wiring between database attributes and their viewable representation. Is there a demo/tutorial containing a bit more meat in the business layer that you are aware of?
2. Given our non SQL based persistent data store, how would you go about implementing EJB3 for such scenario. Is it recommended at all? How would you go about integrating the rest of the application (business layer and representation layer) to data arriving from such source?
3. SRDemo is not intended to be exposed as a portlet. Is there a tutorial that we can use incorporating JSR168, ADF Faces and EJB3 in the same application? I also understand that there is a JSF-JSR168 bridge available. Can you provide some pointers here? Where can we find it? Would we be able to use it in jDeveloper 10.1.3.5?
Regards

Matt,
The only way to associate an "x-axis" with a signal in the Write Data VI would be to feed it waveforms, which are constrained to use time as the x-axis unit. There is really no way around this, so in my opinion, the best solution for you would be to use the "rows are channels" conversion and write the frequency and amplitude values to the file independently. Then when you read the file in DIAdem, take the two channels and build a graph out of them there.
Regards,
E. Sulzer
Applications Engineer
National Instruments
E. Sulzer
Applications Engineer
National Instruments

Reading XML based on DTD

HI All
i need a solution.
if we have a dtd file and a xml file and read the file using SAX i am able to read it where i use the startElement() and endElement() and in these i will use a hardcoded my tag names so that upon reaching this tag name i do something or print.
THis is fine.
But what if i have different DTDs and their corresponding XMLs
Can i read an XML by parsing first a DTD,getting the elements from the DTD and use those element names in the XML parsing by SAX.
That is i need a generic program where given a DTD and XML, i can parse the XML based on DTD
Is this possiblew with SAX or any other parser.
if so how.
i found that if i read 10 XML files from a parser. i can do that only if all are of the same DTD type.
but can i have 10 XML with each one with different DTD and even then use a single program to read all the files
Please help me
Thanks
Vijay Sunder

Normally, XML is done for writing XML instances, respecting a specific DTD or SCHEMA.
In the XML content you can set the DTD for the instance. So, instances can have reference to a DTD, not necessarily the same, of sure.
In that case, the PARSER is responsible for validating the instance against the defined DTD. Simply, be careful to locate the right DTD for each instance.
There is a very good tutorial, and short, here [http://java.sun.com/j2ee/1.4/docs/tutorial/doc/] and go to "Chapter 2: Understanding XML". You will learn how to parse a XML document, how to validate its content...
Naturally, a Java program can read multiple XML documents, extract valuable data for your stuff. For example transform a echo.java source explained in the tutorial, for handling multiple input document which is your need, and you will experience that this code can parse different documents having different DTD references.

Using XML-based object structures to represent data in code/at run-time

Hello,
I have quite a "high level" question which has be bothering me for some time, and I haven't found the subject tackled in any books. I believe J2SE/J2EE is not an important divide here.
Lets say I want to develop a J2SE game application with two programs: a "level designer", and a "level viewer", and I want to store the level files in an XML format.
My question, and I use this example only to try and illustrate it, is:
when coding the level designer or viewer, is it reasonable to use an XML-based object hierarchy for representing a level in code/at run-time, i.e. using the standard Java DOM APIs? Or should one (as I would have done before XML came along) develop a set of classes much closer to modelling the real form of a level, and then add a means to convert those objects to/from to XML format?
This second option of course I would use/would have used if I wasn't thinking about XML, but isn't it sometimes easier to just read in an XML file into a DOM representation and just use the data straight out of that structure, rather than go through the bother of parsing the XML into a set of unrelated objects defined by a different family of classes? What shapes your decision here? And if the second option is best, what is the easiest way of converting to/from the XML?
Thank you for any advice.
Greg

Hi Christian,
Can I ask: what about if your domain was quite 'close' to an object/DOM representation of XML?
For instance, what if a game operated by acting out a theatrical script, a spoken conversation, between two characters, perhaps somehow influenced at points by the user, and a particular level was just a different script for the characters.
One could imagine that the object representation of this would in the end be quite similar to how you'd represent XML, i.e. like a tree of nodes, where each node was a line from the script, and some nodes were a decision point where different nodes could be chosen from.
Would you still want to avoid using XML-based classes to represent the underlying 'game', or is there a point where you would 'give it' to the similarity and use existing XML structures directly?
Thank you for any advice
Greg

Sun RPC - Java libraries (non XML based)

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