JAVA API (javaDoc) Functionality

Hello all
I have come across the following idea after wasting some considerable time browsing the Java API (JavaDoc).
The API is a great tool in assisting programmers who are not so experienced and do not know the API so well. It also helps experienced programmers in browsing foreign packages.
However, something that is missing in the API is a function which allows you direct access to methods which return a specific object.
Example: I need an object X, and it is not possible to initialise or directly access this object (Iterator which is infact an Interface). How do I access methods in other classes that return object X ( Iterator I = (Hashmap.keySet()).iterator(); Therefore, the method iterator() from Interface Set, and subsequently the method keySet() from class Hashmap).
I am sure that such a functionality built in future javaDocs will help a lot of programmers browsing through the API.
Finally, I hope this is the right forum for such requests.
Faz

Do you mean you want to access a method on an object but the type of the object isn't known until runtime? If this is what you mean than you might want to take a look at the Reflection API:
http://java.sun.com/docs/books/tutorial/reflect/index.html

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Message was edited by: Tanveer Shaikh
Message was edited by: Tanveer Shaikh

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You may want to check your show() calls and see if
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in your Vowelm code, you have a static JFrame v.
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of JDK1.1, this has been deprecated in favour of
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not deprecated ..
show is not decrecated thats for sure ... i dontknow
y you said that ...
you can look in docs as well..
True - but this in turn overrides show() from
java.awt.Component, which has been deprecated. My
guess is that's where the problem comes from.
Thanks for the Dukes!
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Reg: Java API

Hi all,
I am implementing webdynpro with MDM. To start with it i need to include jar files only or anything else is needed.
Regards,
Jyothi
Edited by: jyothi beera on Feb 12, 2009 11:58 AM

Hi jyothi ,
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https://help.sap.com/javadocs/MDM/current/index.html (java api codes)
http://help.sap.com/javadocs/MDM/SP06P2/index.html (Java Docs for SP06)
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https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/b02f4f88-7bbb-2a10-67ad-d435b9f0c643
Hope It Helped
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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 ?
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3rd party software to encrypt the data stored in registry it
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http://aspnetresources.com/tools/machineKey
http://msdn.microsoft.com/en-us/library/ms998288.aspx
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Is there a way to read the encrypted data from Windows regsitry settings that is encrypted using the Auto-Generated Machine Key ?
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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.
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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
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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
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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 {
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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

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();
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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 ???

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
null

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

Image upload using Java API

Hi all,
I am trying to upload an image into MDM repository using the Java MDM4J API. I have referred to the earlier posting in this forum for the same problem I am not able to add images into Catalog thru java API. However I am working on SP3 version of MDM software and looks like the Images table structure changed a bit and the code in the earlier posting isn't working.
I am getting an error code -5586944 and the message that gets printed on the console is
a2i.core.StringException: AddRecord error
 at a2i.common.CatalogData.AddRecord(Unknown Source)
 at a2i.common.CatalogData.AddRecord(Unknown Source)
Here is the code that I am using to upload the image
String filePath = "C:\temp\Sunset.jpg";
File file = new File(filePath);
byte[] bytes = new byte[(int) file.length()];
try{
 //read byte from file, and set the large data
 FileInputStream inputStream = new FileInputStream(file);
 inputStream.read(bytes);
 mdmFields.Add(new A2iField("Data ID", new Value(bytes)));
}catch(IOException ioex){
 ioex.printStackTrace();
int dataGroupId = 0;//Hardcoded it to 0. There is one group already in the repository
mdmFields.Add(new A2iField("Data Group ID", new Value(dataGroupId)));
//adding the name
mdmFields.Add(new A2iField("Name", new Value(file.getName())));
mdmFields.Add(new A2iField("Original Name", new Value(file.getName())));
//adding OrigLocationId
int origLocationId =0;
try{
 origLocationId = catalog.AddDataLocation(filePath, 0, DataLocationType.ComputerLocation);
 System.out.println("Location id generated is " +origLocationId);
}catch(StringException ex){
 System.out.println("Error while generating the location id");
 ex.printStackTrace();
mdmFields.Add(new A2iField("Original Location ID", new Value(origLocationId)));
try {
 //adding the image to the "Images" table
 int newImageId = catalog.AddRecord("Images", mdmFields, 0, 0);
} catch (StringException e) {
 // TODO Auto-generated catch block
 System.out.println("Error while adding the image record " + e.GetErrorCode() + " " + e.GetRCMessage(e.GetErrorCode()));
 e.printStackTrace();
I am not able to figure out what is causing the problem. Any ideas would be greatly helpful. Thanks in advance.
Suman.

Hi Mausam,
Thanks for your help. However, the problem doesn't seem to be going.
I printed the records in the Data Groups table using a program to find the record ids that are already existing. My Data Groups table has 3 records. Here are the values.
ID :1 Value :MyGroup
ID :2 Value :Group2
ID :3 Value :Group3
I tried passing all the above 3 values (1,2,3) as input to the Data Group ID field. However, this time, I am getting a different error code this time
Error while adding the image record -2147483647 No message for RC (0x80000001)
a2i.core.StringException: AddRecord error
 at a2i.common.CatalogData.AddRecord(Unknown Source)
 at a2i.common.CatalogData.AddRecord(Unknown Source)
 at images.MyImageUpload.uploadImage(MyImageUpload.java:82)
The error code 2147483647 from the javadocs says RC_BADPARAM. Not able to figure out what exactly is causing the problem with Data Group ID.
Any ideas or pointers to solve this would be greatly helpful. Thanks in advance.
Regards
Suman
> Hi Suman,
>
> If you look at the description for the error code,
> you get RC_CM_DATAGROUPNOTFOUND.
>
> Try giving some other value ( 1 worked for me ) in
> the Data Group or try following the code given for
> the Data Group in other forum post that you have
> mentioned.
>
> Regards,
> Mausam

JAVA API (javaDoc) Functionality

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