RFC or Java API

Hi,
I want to get some data from R/3 into XI to do validations. Is it better to use an RFC or use Java API.
With JAVA API, can I do joins?
Thanks,
Ram

Hi,
Its a best practice to check the data validity at the place of the owner. In your case its best you do all ur validity check in RFC/ABAP Proxy.
Doing so you will be moving the complexity and data computation from XI to the source.
If the current SAP instance is 6.2+ you can use ABAP Proxies for getting the endresult(validated data)into xi.
Cheers,
Naveen

Similar Messages

Java API Failed to authenticate the user session with LDAP

I have created a Java class that uses the MDM Java Api's it works fine on our Development environment where the MDM server uses its own built in authentication, but when I moved it to our QA environment where MDM use LDAP for authentication its failed with a 'Failed to authenticate the user session'. Has anyone seen this before?

hi Dan,
The java class which u have created that suppose to works fine on MDM server because to execute that program there are no requirement of such protocols, the problem u will face while exporting those program to an client machine
LDAP(Lightweight Directory Access protocol) connector communicates with the SAP system using RFC and with the directory server using these standard communication protocol.
so try to select the protocol such that it should help in making connection between the server,direcotryserver and the client machine through which u can execute u r java class using java Api's.
i hope this will give u an idea to through ur problem.
regards,
swapnil

Unable to raise password expiry warning exception in OID using JAVA API

Hi,
We are maintaing the user information for our application in OID(9.2). During logon, it is required that a warning is given to the user according to the value set in "Password Expiration Warning" parameter.
A pl/sql program (using DBMS_LDAP/DBMS_LDAP_UTL packages) written to test password expiry raises the PWD_EXPIRE_WARN exception as expected. However we are unable to simulate the same using the JAVA APIs.
We did try some thing like the following:
public class SampleExpire {
public static void main(String argv[])
throws NamingException {
// Create InitialDirContext
InitialDirContext ctx = ConnectionUtil.getDefaultDirCtx( "TCS-UUODC4",
"4032",
"cn=orcladmin",
"welc0me" );
System.out.println("Hello");
// Create User Objects
User myuser = null,
try {
// Create User using a subscriber DN and the User DN
myuser = new User ( ctx,
Util.IDTYPE_DN,
"uid=C100013, ou=People, o=UUSD",
Util.IDTYPE_DN,
"ou=People, o=UUSD",
false );
catch ( UtilException e ) {
* Exception encountered in User object constructor
System.out.println("User creation failed");
// Authenticate User
try {
myuser.authenticateUser(ctx,User.CREDTYPE_PASSWD,"Z100013");
catch ( UtilException e ) {
* Authenticate fails
System.out.println("Authentication failed");
} // End of SampleExpire.java
The authenticate user does not raise any exception.
Am I missing something ?
Regards -
Adhiraj

Hi,
did you manage to solve this problem? Please let me know

Unable to run the 9.3 JAVA API in "embedded" mode without APS installed

Hello, I'm trying to run the 9.3 JAVA API in "embedded" modewithout APS installed. I first used build Build 242 which was supplied with 9.3beta. This worked great and exactly the way I wanted to.Now I'm trying to do the same with the production release of 9.3JAPI which is (to my knowledge) build 305. With build 305I'm not able to connect to Essbase without APS installed. The reason I do not want to install APS is because I'm runningthe Java code from with an Oracle database (the JAPI jars areloaded into the database) Please see below loglines (running the sampleConnect.class): Build 242 (whichworks ok)Java(TM) 2 Runtime Environment, Standard Edition (build1.4.2_06-b03) Java HotSpot(TM) Client VM (build 1.4.2_06-b03, mixed mode) WARN [main]: - Time: Mon Feb 12 08:53:24 CET 2007, AnalyticProvider Services - Release 9.3.0.0 Build 242 Copyright (c) 1991-2006 Hyperion Solutions Corporation. All rightsreserved. connection mode : EMBEDDED WARN [main]: - Time: Mon Feb 12 08:53:25 CET 2007, connection mode: EMBEDDED essbase.properties: essbase.properties WARN [main]: - Time: Mon Feb 12 08:53:25 CET 2007,essbase.properties: essbase.properties domain.db location: ./domain.db WARN [main]: - Time: Mon Feb 12 08:53:25 CET 2007, domain.dblocation: ./domain.db WARN [main]: - Time: Mon Feb 12 08:53:25 CET 2007,cluster.monitor.interval : 30INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: sign on (from user Administrator session number 5178) INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: get my analytics mode (from user Administrator sessionnumber 5178) INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: (from user '**aps_profile is Enabled**' session numberfalse) INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: connect to olap service (from user Administrator sessionnumber 5178) INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: (from user '**aps_profile is Enabled**' session numberfalse) Connection to Analyic server '10.130.60.78' was successful. INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: sign off (from user Administrator session number 5178) Process exited with exit code 0. Build 305 (whichdoes not work ok)Java(TM) 2 Runtime Environment, Standard Edition (build1.4.2_06-b03) Java HotSpot(TM) Client VM (build 1.4.2_06-b03, mixed mode) WARN [main]: - Time: Mon Feb 12 08:54:28 CET 2007, AnalyticProvider Services - Release 9.3.0.0 Build 305 Copyright (c) 1991-2006 Hyperion Solutions Corporation. All rightsreserved. connection mode : EMBEDDED WARN [main]: - Time: Mon Feb 12 08:54:28 CET 2007, connection mode: EMBEDDED essbase.properties: essbase.properties WARN [main]: - Time: Mon Feb 12 08:54:28 CET 2007,essbase.properties: essbase.properties domain.db location: ./domain.db WARN [main]: - Time: Mon Feb 12 08:54:28 CET 2007, domain.dblocation: ./domain.db WARN [main]: - Time: Mon Feb 12 08:54:28 CET 2007,cluster.monitor.interval : 30INFO [main]: - Time: Mon Feb 12 08:54:28 CET 2007, [Mon Feb 12 08:54:28 CET 2007] - Service using EMBEDDED Request: sign on (from user Administrator session number 68529) INFO [main]: - Time: Mon Feb 12 08:54:28 CET 2007, [Mon Feb 12 08:54:28 CET 2007] - Service using EMBEDDED Request: get my analytics mode (from user Administrator sessionnumber 68529) INFO [main]: - Time: Mon Feb 12 08:54:28 CET 2007, [Mon Feb 12 08:54:28 CET 2007] - Service using EMBEDDED Request: connect to olap service (from user Administrator sessionnumber 68529) Error: Cannot connect to olap service. null INFO [main]: - Time: Mon Feb 12 08:54:28 CET 2007, [Mon Feb 12 08:54:28 CET 2007] - Service using EMBEDDED Request: sign off (from user Administrator session number68529) Process exited with exit code 1.

Hello, I'm trying to run the 9.3 JAVA API in "embedded" modewithout APS installed. I first used build Build 242 which was supplied with 9.3beta. This worked great and exactly the way I wanted to.Now I'm trying to do the same with the production release of 9.3JAPI which is (to my knowledge) build 305. With build 305I'm not able to connect to Essbase without APS installed. The reason I do not want to install APS is because I'm runningthe Java code from with an Oracle database (the JAPI jars areloaded into the database) Please see below loglines (running the sampleConnect.class): Build 242 (whichworks ok)Java(TM) 2 Runtime Environment, Standard Edition (build1.4.2_06-b03) Java HotSpot(TM) Client VM (build 1.4.2_06-b03, mixed mode) WARN [main]: - Time: Mon Feb 12 08:53:24 CET 2007, AnalyticProvider Services - Release 9.3.0.0 Build 242 Copyright (c) 1991-2006 Hyperion Solutions Corporation. All rightsreserved. connection mode : EMBEDDED WARN [main]: - Time: Mon Feb 12 08:53:25 CET 2007, connection mode: EMBEDDED essbase.properties: essbase.properties WARN [main]: - Time: Mon Feb 12 08:53:25 CET 2007,essbase.properties: essbase.properties domain.db location: ./domain.db WARN [main]: - Time: Mon Feb 12 08:53:25 CET 2007, domain.dblocation: ./domain.db WARN [main]: - Time: Mon Feb 12 08:53:25 CET 2007,cluster.monitor.interval : 30INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: sign on (from user Administrator session number 5178) INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: get my analytics mode (from user Administrator sessionnumber 5178) INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: (from user '**aps_profile is Enabled**' session numberfalse) INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: connect to olap service (from user Administrator sessionnumber 5178) INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: (from user '**aps_profile is Enabled**' session numberfalse) Connection to Analyic server '10.130.60.78' was successful. INFO [main]: - Time: Mon Feb 12 08:53:25 CET 2007, [Mon Feb 12 08:53:25 CET 2007] - Service using EMBEDDED Request: sign off (from user Administrator session number 5178) Process exited with exit code 0. Build 305 (whichdoes not work ok)Java(TM) 2 Runtime Environment, Standard Edition (build1.4.2_06-b03) Java HotSpot(TM) Client VM (build 1.4.2_06-b03, mixed mode) WARN [main]: - Time: Mon Feb 12 08:54:28 CET 2007, AnalyticProvider Services - Release 9.3.0.0 Build 305 Copyright (c) 1991-2006 Hyperion Solutions Corporation. All rightsreserved. connection mode : EMBEDDED WARN [main]: - Time: Mon Feb 12 08:54:28 CET 2007, connection mode: EMBEDDED essbase.properties: essbase.properties WARN [main]: - Time: Mon Feb 12 08:54:28 CET 2007,essbase.properties: essbase.properties domain.db location: ./domain.db WARN [main]: - Time: Mon Feb 12 08:54:28 CET 2007, domain.dblocation: ./domain.db WARN [main]: - Time: Mon Feb 12 08:54:28 CET 2007,cluster.monitor.interval : 30INFO [main]: - Time: Mon Feb 12 08:54:28 CET 2007, [Mon Feb 12 08:54:28 CET 2007] - Service using EMBEDDED Request: sign on (from user Administrator session number 68529) INFO [main]: - Time: Mon Feb 12 08:54:28 CET 2007, [Mon Feb 12 08:54:28 CET 2007] - Service using EMBEDDED Request: get my analytics mode (from user Administrator sessionnumber 68529) INFO [main]: - Time: Mon Feb 12 08:54:28 CET 2007, [Mon Feb 12 08:54:28 CET 2007] - Service using EMBEDDED Request: connect to olap service (from user Administrator sessionnumber 68529) Error: Cannot connect to olap service. null INFO [main]: - Time: Mon Feb 12 08:54:28 CET 2007, [Mon Feb 12 08:54:28 CET 2007] - Service using EMBEDDED Request: sign off (from user Administrator session number68529) Process exited with exit code 1.

Get All group from LCES using Livecycle java API

Hello ,
Can anyone told me how i can retrieve all the groups that exist in my livecyle using JAVA API.
Some method who return all groups ??
Thanks!

First Thank you for your answer
I tried this part
//Set connection properties required to invoke LiveCycle ES
 Properties connectionProps = new Properties();
 connectionProps.setProperty(ServiceClientFactoryProperties.DSC_DEFAULT_EJB_ENDPOINT, "jnp://test:1099");
 connectionProps.setProperty(ServiceClientFactoryProperties.DSC_TRANSPORT_PROTOCOL,Service ClientFactoryProperties.DSC_EJB_PROTOCOL);
 connectionProps.setProperty(ServiceClientFactoryProperties.DSC_SERVER_TYPE, "JBoss");
 connectionProps.setProperty(ServiceClientFactoryProperties.DSC_CREDENTIAL_USERNAME, "administrator");
 connectionProps.setProperty(ServiceClientFactoryProperties.DSC_CREDENTIAL_PASSWORD, "password");
 ServiceClientFactory scf = ServiceClientFactory.createInstance(connectionProps);
 DirectoryManager directoryManager = new DirectoryManagerServiceClient(scf);
 PrincipalSearchFilter psf = new PrincipalSearchFilter();
 psf.setPrincipalType(Principal.PRINCIPALTYPE_GROUP); //Recommended - refines the search to a User or Group
 psf.setRetrieveOnlyActive(); // Recommended - returns only ative users/groups and not obsolete/deleted users/groups
 List<Principal> resultList = directoryManager.findPrincipals(psf);
 System.out.println("Done");
and when I check the result of my list I find incomprehensible informations.
So when I debug the code , my list contains little information.
NB : my LDAP contains hundreds of groups.
Any suggestion
Any code Source.

Java API to read the Encrypted Values from Windows Registry settings

Is there any Java API to read the Encrypted Values from Windows Registry settings ?
My Java Application invokes a 3rd party Tool that writes the key/value to windows registry settings under : “HKLM\Software\<3rdparty>\dataValue”.
This entry is in BINARY and encrypted with 3DES, using crypto API from Microsoft.
3rd party software to encrypt the data stored in registry it
either uses C++ code: and uses the call “CryptProtectData” and “CryptUnProtectData” or
If it is a .NET (C#) it uses the call “Protect” or “UnProtect” from class “ProtectData” of WinCrypt.h from the library “Crypt32.lib.
Note: The data is encrypted using auto-generated machinekey and there is no public key shared to decrypt the Encrypted data.
Since the data is encrypted using auto-generated machinekey the same can be decrypted from a .Net / C++ application using CryptUnprotectData or UnProtect() API of WinCrypt.h from the library “Crypt32.lib.
To know more about Auto-Generated MachineKey in Windows refer the links below
http://aspnetresources.com/tools/machineKey
http://msdn.microsoft.com/en-us/library/ms998288.aspx
I need to find a way in Java to find the equivalent API to decrypt (CryptUnprotectData) and Microsoft will automatically use the correct key.
But i couldn't find any informato related to Java APIs to enrypt or decrypt data using auto-generated machinekey.
Is there a way to read the encrypted data from Windows regsitry settings that is encrypted using the Auto-Generated Machine Key ?
Kindly let me know if Java provides any such API or mechanism for this.

If the symmetric key is "auto-generated" and is not being stored anywhere on the machine, it implies that the key is being regenerated based on known values on the machine. This is the same principle in generating 3DES keys using PBE (password-based-encryption). I would review the documentation on the C# side, figure out the algorithm or "seed" values being used by the algorithm, and then attempt to use the JCE to derive the 3DES key using PBE; you will need to provide the known values as parameters to the PBE key-generation function in JCE. Once derived, it can be used to decrypt the ciphertext from the Regiistry in exactly the same way as the CAPI/CNG framework.
An alternate way for Java to use this key, is to write a JNI library that will call the native Windows code to do the decryption; then the Java program does not need to know details about the key.
That said, there is a risk that if your code can derive the key based on known seeds, then so can an attacker. I don't know what your applicatiion is doing, but if this is anything related to compliance for some data-security regulation like PCI-DSS, then you will fail the audit (for being unable to prove you have adequate controls on the symmetric key) if a knowledgable QSA probes this design.
Arshad Noor
StrongAuth, Inc.

Which Java API could check the type of Operating System the JVM is running?

Does anyone know which Java API could check the type of Operating System the JVM is running?
thanks a lot!

check out System class.
regards
shyamAnd specifically, the getProperty() method.
- K

Performance of Java API 2

Hello,
we are currently using Java API 2 that comes with MDM 5.5 SP5 (Build 5.5.42.65) to read extended information from the mdm repository.
Our process:
We are export every product as a XML file over the MDM Syndicator and enrich this file with extended information from the API (This step is needed because we cannot export all data by the Syndicator, for example multilingual attributes / some product data like textblocks / id's for incremental updates ...).
Actually the performance is really bad, we need ca. 10-15 secs to process one file, that is really frustrating when you have stored near 70.000 products in your repository.
Are there some tricks to improve the performance or is the API really so slow? Or any better alternatives for an fast export?
Thanks for your help ....
Best Regards,
Jan

1 - If you are able to use the EJB connection with the LiveCycle SDK classes (you have are using a supported java version such as 1.5_xx, your network security doesn't prevent RMI calls, etc.) then that is your best bet.
2 - Yes, you will need the java APIs to be accessible for your application. The LiveCycle APIs have remote EJB endpoints so you can access them from another server.
3 - There are samples that ship with the LiveCycle server (located in your LCInstall\LiveCycle_ES_SDK\samples\Forms). There are also samples on the LiveDocs page at: http://livedocs.adobe.com/livecycle/8.2/programLC/programmer/help/000064.html

Invalid Argument Exception on Java API's DB Close

When closing the database via the Java API's close method, I am getting an invalid argument exception... how can this be fixed... subsequent access to the DB causes the JVM to crash??
ERROR: An exception has occurred: java.lang.IllegalArgumentException: Invalid argument
java.lang.IllegalArgumentException: Invalid argument
at com.sleepycat.db.internal.db_javaJNI.DbEnv_close0(Native Method)
at com.sleepycat.db.internal.DbEnv.close0(DbEnv.java:217)
at com.sleepycat.db.internal.DbEnv.close(DbEnv.java:77)
at com.sleepycat.db.Environment.close(Environment.java:39)
at com.sleepycat.dbxml.XmlManager.closeInternal(XmlManager.java:301)
at com.sleepycat.dbxml.XmlManager.delete(XmlManager.java:33)
at com.sleepycat.dbxml.XmlManager.close(XmlManager.java:310)
at com.iconnect.data.adapters.BerkleyXMLDBImpl.insert(BerkleyXMLDBImpl.java:827)
at com.iconnect.data.DataManagerFactory.insert(DataManagerFactory.java:182)
at Xindice2Berkley.main(Xindice2Berkley.java:99)

I had the same problem. I could fix it by carefully calling the delete() function on all those DBXML Xml..xyz objects that you create when you perform queries etc. It seems that those Java objects have some 'shadow' object in the underlying DLL and by calling delete() you free resources that remain otherwise assigned (maybe somebody with a C++ background who programmed this stuff?). Call delete() before the Java object gets out of scope. For instance:
results = mgr.query(collection,context,null);
XmlValue value;
try {
while ((value = results.next()) != null) {
XmlValue c = value.getFirstChild();
String ref = c.getNodeValue();
c.delete(); c = null;
value.delete(); value = null;
catch (Exception e) {
finally {
if (results != null) {
results.delete();
results = null;
Once i did this on all possible dbxml objects i used in my code, the java.lang.IllegalArgumentException: Invalid argument disappeared.
Message was edited by:
user562374

Can i create more than one attributes for the custom class created using java API

Hello everyone,
I have been creating class and its attributes programatically using java APIs, I want to know that is there any way to create multipal attributs for the same class in just one call of API with all the options for each attributes,
thanks

You can create a new class and define all of the Attributes at the time the class is created - this is the preferred way of creating classes. Use the addAttributeDefinition() method on ClassObjectDefinition. If you need to add attributes to existing classes, you can only add them one at a time (using the addAttribute() method on ClassObject).
(dave)

Replication of Berkeley DB Xml Edition with the help of JAVA API

hi,
i am trying to replicate berkeley DB to 2 other replicas.with the help of small program which along with its documentation(of chapter 3). And i'm using java API for the same(specifically replication framework program.)
All necessary files are get created at host side like log files, dll files, db files. But at replica(client) side nothing get created. Host and clients are placed in the same network.
But unfortunately its not working. don't know the reason. And its not giving any sort of error. And i dont know how to go ahead. Or is there any other way should i proceed with.
So could you help me out to get rid of this problem.
Thanks

What compiler are you running?
See this message and thread:
Re: Problem after update to 2.3.8
It may be necessary to apply the -fno-strict-aliasing flag to the Berkeley DB Java library as well.
Regards,
George

How to find bpel instance in 11g based on the index values using Java APIs

Hi ,
In SOA10G we had option to find the instances based on the index value using Java APIs like below.
WhereCondition criteria= new WhereCondition(SQLDefs.CX_index_1 + " = ?");
criteria.setString(1, "indexValue");
Locator mLoc = getLocator();
IInstanceHandle[] foundInstances = mLoc.listInstancesByIndex(criteria);
Please tell me how to achieve the same functionality in SOA 11G using Java APIs
Regards,
Saba

I have multiple bpel in my composite. I checked in ci_indexes table and it shows the instance number of the bpel process. But the em console is showing only the composite instance number. when I opened composite instance, I could see all the bpel process with instance number in the audit trail. How can I find the the actual composite instance number that I should search for in the em console ???

Bug report (and solution): adding multiple records through Java API in bulk

I have found some bugs in the Java API (version 4.1.25) that makes it impossible to add mulitple values in bulk to a RECNO database. The fixes are as follows:
MultipleEntry.java, line 80:
"DbUtil.int2array(curr_off, this.data, pos);"
should be replaced by
" DbUtil.int2array(recno, this.data, pos);"
MultipleRecnoDatabaseEntry.java, line 130:
"return append_internal(data, doff, dlen, recno);"
should be replaced by
"return append_internal(data, offset, len, recno);"
Regards,
Johan Walters

Hello,
It looks like there were some corrections to this area in the post 4.1 i.e. 4.2 release. And I do not see these same issues in the current 5.1.25 release. If you do find them in the current release, just let us know.
Thanks,
Sandra

How can I create a new User with the Java API like OIDDAS do?

Hello,
I'm currently working on an BPEL based process. And i need to create an OCS user. So far I can create an user in the OID. But I cant find any documentation about given this user an email account,calendar and content function etc.
Did anybody know if there are some OIDDAS Webservices? Or did anybody know how to do this using the Java APIs?

You are asking about a Database User I hope.
You can look into the Oracle 8i Documentation and find various privillages listed.
In particular, you may find:
Chapter 27 Privileges, Roles, and Security Policies
an intresting chapter.
You may want to do this with the various tools included with 8i - including the
Oracle DBA Studio - expand the Security node and you can create USERS and ROLES.
Or use SQL*Plus. To create a
user / password named John / Smith, you would login to SQL*Plus as System/manager (or other) and type in:
Create user John identified by Smith;
Grant CONNECT to John;
Grant SELECT ANY TABLE to John;
commit;
There is much more you can do
depending on your needs.
Please read the documentation.
-John
null

Java API's supported in the Jdeveloper, IAS, and RDBMS product components

If there are any technical errors or "mistatement of the facts" in this posting, please let me know about them ..
This article is being delivered in Draft form and may contain
errors. Please use the MetaLink "Feedback" button to advise
Oracle of any issues related to this article.
PURPOSE
This article describes the "Enterprise Java Beans" (EJB), "Java Server Pages"
(JSP) and servlets Application Programming Interfaces (API) supported by the
Oracle products, Jdeveloper, Internet Application Server (IAS) and the Oracle
RDBMS release 2 and release 3, also known as Version 8.1.6 and 8.1.7,
respectively.
SCOPE & APPLICATION
All parties interested in the Java API's supported by these products.
Java API's supported in the Jdeveloper, IAS, and RDBMS product components
JDEVELOPER
JDEVELOPER is Oracle's Java development tool designed for coding / development,
testing / debugging, and deployment of Java Applications to the IAS and
RDBMS platforms.
With the java software api's being in a constant state of evolution, each new
release of Jdeveloper adds support for the "then current" version of the java
software api's, if it does not already have it implemented.
JDEVELOPER SERVLET API JSP API EJB API
VERSION VERSION VERSION VERSION
3.2.X.X 2.2 1.1 1.1
3.1.X.X 2.1 1.0 1.0
NOTE :
Sun Microsystems and their advisory teams (Oracle is on it) is working on
"draft" specifications for the next version of all of these API's
EJB -------> http://java.sun.com/products/ejb/index.html
JSP -------> http://java.sun.com/products/jsp/index.html
Servlets --> http://java.sun.com/products/servlet/?frontpage-javaplatform
It is anticipated that future releases of Jdeveloper will continue to be
upgraded to include support for the next version of each api.
To obtain the latest information on Oracle's Internet Development Suite (IDS)
of tools, please review the "Internet Developer Suite" information located
on Oracle's technet web site at :
http://technet.oracle.com/products/index.htm
IAS
IAS is Oracle's next evolution of the web server and application server
product technology superceeding the Web Application Server (WAS) and Oracle
Application Server (OAS) product lines.
IAS SERVLET API JSP API EJB API EJE VERSION
VERSION VERSION VERSION VERSION SUPPORTED
9I(1.0.2) 2.2 1.1 1.1 817
8i(1.0.1-NT) 2.0 1.0 1.0 816
8i(1.0.0-UNIX) 2.0 1.0 1.0 816
The IAS product contains two Java Virtual Machines (JVM) within it's
architecture.
They are called :
1) APACHE JSERV servlet engine
2) ORACLE ENTERPRISE JAVA ENGINE (EJE)
APACHE JSERV servlet engine
The APACHE JSERV servlet engine is an EXISTING product licensed from the
apache group which supports the servlet api 2.0.ONLY.
The APACHE JSERV product does not support ANY JSP's unless the customer
installs a third party jsp engine.
The IAS 8i/9i which has the APACHE JSERV product embedded in it, comes with
Oracle's JSP engine (OJSP) already integrated into it. OJSP supports JSP's up
to the specific JSP engine version documented in the Oracle Universal
Installer (OUI) for the 8.1.7 RDBMS or the IAS products. It is also documented
in the product's release notes.
Oracle ENTERPRISE JAVA ENGINE (EJE)
The EJE formerly known as :
1) Oracle 8i Java Virtual Machine (JVM)
2) JSERVER component,
3) Aurora JVM
was originally releas ed in the RDBMS 8.1.5 database with jdk 1.1.6 based java
support.
The currently supported versions of the Oracle 8i RDBMS, versions 2 and 3,
also known as Version 8.1.6 and 8.1.7, respectively, provides a jdk 1.2.1
based java virtual machine support.
"EJE" Version 816
This EJE, found in rdbms 8.1.6 and IAS 8i, contains support for the ejb
api 1.0, corba, and java stored procedures.
"EJE" Version 817
This EJE, found in rdbms 8.1.7 and IAS 9i, contains support for the ejb,
corba, and java stored procedures as well as the Oracle Servlet Engine (OSE)
which provides support for the servlets 2.2 api and JSP 1.1 api.
Note :
EJB support in the "EJE" Version 817 has been upgraded to comply with the EJB
1.1 api specification which includes "entity beans" support.
What is the bottom line ??
1) Servlets deployed to the APACHE JSERV must comply with servlet api 2.0.
2) Servlets 2.1 or higher are only supported in EJE's OSE component found in
the rdbms 817 or ias 9i products. Servlets api 2.0 can also run in the OSE.
References
1) "Oracle9i Application Server Technical White Paper" located at :
http://technet.oracle.com/products/ias/pdf/9ias_102.pdf
2) "Whats New? Oracle8i JVM Accelerator, Oracle Servlet Engine, OracleJSP ..."
located at :
http://technet.oracle.com/products/oracle8i/pdf/504.pdf
3) "Oracle8i Release 3 New Features Summary" located at :
http://technet.oracle.com/products/oracle8i/pdf/8iR3_nfs.pdf
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which jvm is used by jserv ?? EJE or a separate jdk ?
The Jserv servlet engine is running in a separate jdk JVM external to the EJE jvm which is embedded within the "database" component of ias and the RDBMS.
See the reference below for more details ...
if jserv only support old apis, why it is in oracle's products ?
i would assume that the oracle servlet engine was under development when ias 8i was released and became available in time for the ias 9i and rdbms 817 products.
looking back in history leads me to believe ias 8i was a migration path to get to ias 9i or rdbms 817.
Based upon the long history of new releases of every oracle product being upgraded with new features, it's reasonable to assume that these products will continue to evolve.
when I deploy a jsp how to deploy in the right servlet container ("EJE") ?
as documented in the reference below, you can deploy JSP's to either the apache jserv jvm or the EJE since the ORACLE JSP engine functionality is in both jvm's.
there are many posts where you can see that people have deploy in jserv and they have problems because they don't use the right container (servlet 2.0 instead of
servlet 2.2) http://technet.oracle.com:89/ubb/Forum2/HTML/006349.html
when ias 8i came out this was clearly an issue since servlet support was at api 2.0, and the current servlet api was probably at 2.1.
oracle clearly made every effort to get ias 9i released quickly to supply a servlet 2.1 and 2.2 capable engine to resolve this issue.
since ias 9i and rdbms 8.1.7 are available this is no longer an issue.
The reference below explains the architecture and understanding it would eliminate a lot of "deploy to the wrong ias 9i component" issues.
so why jserv is bundled with oracle 8i/9ias since EJE support the right api version ?
if in ias 9i release , oracle had removed the jserv component without any advance warning, many customers would have been very upset since oracle makes every attempt to give advance notice before removal of functionality.
References
1) "Oracle9i Application Server Technical White Paper" located at :
http://technet.oracle.com/products/ias/pdf/9ias_102.pdf

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