What is meant by administered objects in jms

what is meant by administered objects in jms..
and
is this Analogy true : JMS Provider like JDBC Driver
or JMS Provider like DBMS(IBM MQ)
what that provider is.....

In my previous job I was developer/administrator etc for the was environment and although I don't know if there are any hard and fast rules to what administered objects are I classed anything that get created in WAS as adminstered objects so that would be the likes of:
JMS Queues
JMS Queue Connection Factories
Datasources
J2C Aliases
JDBC Providers e.g. Sybase driver
In the case of WAS 6+ then that would also include your service integration buses, foreign MQ buses etc.
Basically anything that you can script using wsadmin
Hope that helps.
Matt

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What are administered objects

Examples of administered objects are apparently JMS destinations and connection factories, but what exactly are they?
Can anything "managed" by the container be called an administered object (e.g. EJBs, DataSources, etc)?
resource-ref is used to indicate "resource manager connection factory" objects, while resource-env-ref is used to indicate "admistered objects associated with resources", though that doesn't clear up much...
Could anybody please clarify?
Thanks.

Administered object is a term used by the connector specification to describe global resources exposed by resource adapters and other backend systems. JMS destinations and connection factories are two good examples.
Regarding the Java EE private component environment (java:comp/env),
the original intent was that resource-refs be used to refer to
factory objects such as JMS Connection Factories and Datasources, whereas resource-env-refs
refer to opaque resources such as JMS Destinations. In retrospect it
didn't help that much to make that distinction and it has caused a lot of confusion.
The annotations in Java EE 5 help abstract a lot of this by allowing @Resource
to be used for anything that would map to either a resource-ref or resource-env-ref.
Things like ejb references, web service references, and persistence unit/context references
each have special enough behavior that they are assigned their own unique environment
types, so those would not be refered to as administered objects.
--ken

JMS Administered Objects

Why are "ConnectionFactory" and "Destination" administered objects?
What does the spec mean by saying that they are administered objects?
What are the advantages of having them as administered objects? (and not any other objects in the spec)?
What are the difficulties in maintaining them programatically? Why should some one admin them? What does the admin do?
Besides the above, I have another Question:
What makes anyone use multiple Sessions in one Connection, instead of using a Single Session to send messages? Why is there a Concept of a Session? Can't it just be Connection?
Can someone throw light on (any of) these?
Thanks,
Kalyan.

hi.
all applications that have a JMS Connection in order to send and receive messages, should have their Connection objects hook to the same server (the JMS provider). It is therefore appropriate that they all use a ConnectionFactory that has the same characteristics and metadata. The easiest way to do it, is to register the ConnectionFactory somewhere in the system that's well-known - e.g. a JNDI service. It doesn't make sense to have all clients configured individually. This is why you administer a ConnectionFactory.
Destination objects are also common to all clients. everyone who uses your JMS provider should have access to the correct list of destinations. again - it just doesn't make sense to configure each client separately, so you register all public Destination objects in the same service (again - JNDI is a good choice).
All other objects are application-specific. a Connection/Session/MessageConsumer (and so on) object is valid only for the application that created it. there's no need to register it elsewhere, because no one else should have access to those objects. Basically, you could say, that only objects that every client should access - are to be administered.
Multiple Session objects on a Connection are used when you want to separate parts of the application. a Session means that you are serializing the delivery of messages. if you have multiple threads in your app, you might want to give each sending thread a different Session object, because otherwise - they will all block on the communal Session.
additionally - you should not use one Session object for both consuming and producing of messages, so -if your app wishes to do both, it should have at least two Session objects.
moreover - when consuming messages, you do not use the same Session object for synchronous and a-synchronous consuming. so - if you need a consumer to block until it gets a message, and you need another consumer to wake up as a listener when a message arrives - you will need two Session objects.
Last but not least, suppose you have two producers in your application. one of them needs to use a transacted Session, and the other one does not - (or you need different acknowledge modes) - you must use multiple Session objects.
hope that helps.
Nimo.

Creating jms administered object

I am getting the message "Object Not Found Code - 32" while creating jndi naming service under jms administered object stores. Can anyone help me how to create an object.

Looks like the entry your trying to add doesn't have a parent... I suggest that you check the DN (Context) of the entry you're trying to add and/or that the parent entry exist in your directory.
Regards,
Ludovic.

What is the recommended way for persisting JMS messages?

What is the recommended way for persisting JMS messages?. As per the IMQ admin documentation , using the default built-in persistence type which is through unix flat files is much efficient and faster, compared to the database persistence .
Tried setting up the jdbc stuff for database persistence on iAS 6.5 . I am getting the following
error .
[24/Apr/2002:16:09:20 PDT] [B1060]: Loading persistent data...
[24/Apr/2002:16:09:21 PDT] Using plugged in persistent store: database connection
url=jdbc:oracle:thin:@dbatool.mygazoo.com:1521:qa1 brokerid=ias01
[24/Apr/2002:16:09:23 PDT] [B1039]: Broker "jmqbroker" ready.
[24/Apr/2002:16:11:56 PDT] ERROR [B4012]: Failed to persist interest
SystemManager%3ASystemManagerEngine%2BiMQ+Destination%0AgetName%28%29%3A%09%09SM_Response%0AClass%3A%09%09%09com.sun.messaging.Topic%0AgetVERSION%28%29%3A%09%092.0%0AisReadonly%28%29%3A%09%09false%0AgetProperties%28%29%3A%09%7BJMQDestinationName%3DSM_Response%2C+JMQDestinationDescription%3DA+Description+for+the+Destination+Object%7D:
java.sql.SQLException: ORA-01401: inserted value too large for column
[24/Apr/2002:16:11:56 PDT] WARNING [B2009]: Creation of consumer SM_Response to destination 1
failed:com.sun.messaging.jmq.jmsserver.util.BrokerException: Failed to persist interest
SystemManager%3ASystemManagerEngine%2BiMQ+Destination%0AgetName%28%29%3A%09%09SM_Response%0AClass%3A%09%09%09com.sun.messaging.Topic%0AgetVERSION%28%29%3A%09%092.0%0AisReadonly%28%29%3A%09%09false%0AgetProperties%28%29%3A%09%7BJMQDestinationName%3DSM_Response%2C+JMQDestinationDescription%3DA+Description+for+the+Destination+Object%7D:
java.sql.SQLException: ORA-01401: inserted value too large for column
Any thoughts?

From the output, you are using imq 2.0. In that release
the key used to persist a durable subscriber in the database
table has a limit of 100 characters. The output shows that
your value is:
SystemManager%3ASystemManagerEngine%2BiMQ+Destination%0AgetName%28%29%3A%09%09SM_Res
ponse%0AClass%3A%09%09%09com.sun.messaging.Topic%0AgetVERSION%28%29%3A%09%092.0%0Ais
Readonly%28%29%3A%09%09false%0AgetProperties%28%29%3A%09%7BJMQDestinationName%3DSM_R
esponse%2C+JMQDestinationDescription%3DA+Description+for+the+Destination+Object%7D:
which is much longer than 100 characters.
You might want to shorten the string you use for the
durable name.
And yes, the default file-based persistence store is
more efficient when compared to the plugged-in persistence
through a database.

Dispute Case Key (Replicated) (0DPM_D10); what is meant by Replicated?

Hi everyone,
I am working on implementing FSCM Dispute Managment module. I have some questions regarding the new standard content provided by SAP for this:
Earlier I have seen clients using the Stanadard InfoSet 0DPM_I0 for all the Dispute's reporting as it combines data from AR, Dispute Case key and 0Customer. But now I am seeing a bunch of new objects like 0DPM_M10, 0DPM_M20, 0DPM_C10, 0DPM_D10, 0DPM_DCAS_10 etc. provided by SAP as standard content.
Does any one have any experience with this new content; can anyone explain me how this new content is useful. My client is reluctant against using the standard InfoSet as its is built on two DSO's; I have suggested to build a cube on top of them and can still use an InfoSet to combine AR line items, Disputes, Dispute case key and Customer. Correct me if I am wrong with thid statement.
Also please let me know what is meant by a Replicated DSO.
Any comments or suggestions will be greatly appreciated.
Thanks & Regards,
SRV

There are a few things to consider:
     1) The data is stored in deserialized form until it is read. The first read will deserialize the data.
     2) There is some overhead per-entry. 750MB/(3,000,000-30) = ~250 bytes per entry. Some portion of this is attributable to the per-entry overhead.
     3) How did you measure memory usage? Usually invoking <tt>System.gc()</tt> before measuring heap usage will clear garbage but is not guaranteed.
     Jon Purdy
     Oracle

What is meant by Local Class and how we can create local classes in abap?

Hi Friends
what is meant by Local Class and how we can create local classes in abap?
Regards,
Sree

Hi
Local classes are the classes which we declare and use using the SE38 ABAP editor
Global classes are the classes which we find in SE24 and call the methods of them into our program.
see the sample code
REPORT zs_class.
SELECTION SCREEN
SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME.
PARAMETERS:p_var TYPE i,
p_var1 TYPE i.
SELECTION-SCREEN END OF BLOCK b1.
CLASS d_class DEFINITION
CLASS d_class DEFINITION.
PUBLIC SECTION.
METHODS:
add,
sub.
PROTECTED SECTION.
DATA : var2 TYPE i.
ENDCLASS. "d_class DEFINITION
CLASS d_class IMPLEMENTATION
CLASS d_class IMPLEMENTATION.
METHOD add.
var2 = p_var + p_var1.
WRITE:/ var2.
ENDMETHOD. "add
METHOD sub.
var2 = p_var - p_var1.
WRITE:/ var2.
ENDMETHOD. "sub
ENDCLASS. "d_class IMPLEMENTATION
START-OF-SELECTION
START-OF-SELECTION.
DATA: obj TYPE REF TO d_class.
CREATE OBJECT: obj .
CALL METHOD: obj->add,
Regards
Anji

Sun One App Server 8.1,Sun One Message Q3.6,administered objects in LDAP

Hi,
Has anyone tried hosting an MDB on Sun One App Server 8.1 listening to a queue on Sun One Message Queue 3.6 through administered objects in directory server...? It looks quite straight forward but somehow it doesn't seems to work. Any idea if Sun one app server supports this type of architecture...?
Regards,
Pritesh

Hi,
Even I didn't see any obvious reason why it shouldn't work untill I found that Sun One App Server 8.1 does not support external JNDI lookup to Sun MQ 3.6 through administered objects. However, it is possible using a newly released generic resource adapter for JMS 1.5 RC1. I am still fighiting on it and let you know if it works.
I was getting an error "JMS resource can not be created" during deployment time.
Regards,
Pritesh Thakor

What is meant by change pointer and change request

hi,
what is meant by change pointer and change request in sap r3
plz can u any one notes or link on this , or if possible briefly tell about this..
i am looking for clear idea on this..
thanks
Ruban

With respect to Dictionary Change pointers means all the changes done to dictionary objects.
All the change logs with respect to tables are stored in CDHDR and CDPOS table
Change Pointers in broad sense are used with respect to IDOC
Change Pointers & Reduction of IDOCs.
Applications, which write change documents, will also try to write change
pointers for ALE operations. These are log entries to remember all modified
data records relevant for ALE.
Following Steps must be followed in case of Change Pointer.
1) Goto Transaction BD60.
Note down the Details of the Message Type for which change pointer has to activate. Details like Function Module, Classification Object, ALE object Type etc.
E.g. ZDEBP3
2) Next step is goto transaction BD53
Click on change button.
First select the segment for which the fields has to modified (either remove or
add ).
It will show the fields in a pop-up window where the user can select, deselect the respective fields.
Save the settings for the Message type. Dont forget to activate the change pointers by clicking Activate Change pointers button on the main screen.
3) Once the activation is done system will reset the settings for the Message type in Change pointers (BD60). Maintained the old settings for the Message type.
Check this FAQ
. Do you really need change pointers?
You need change pointers to distribute changes with the ALE SMD tool. If you do not use this tool, you do not need to write change pointers.
You can deactivate change pointers and activate them again with the transaction BD61.
2. Do you really need to activate change pointers for this messages type?
If some messages types are no longer to be distributed by change pointers, you can deactivate change pointers for this messages type.
You can deactivate change pointers for the message type
and reactivate them again.
For reduced message types, deactivate the change pointer with the
Reduction tool (transaction BD53).
3. Are there still too many change pointers to be processed?
The change pointers are analyzed with the transaction BD21 or the report RBDMIDOC in ALE and flagged as processed. If the change pointers are created periodically, this report should also run periodically.
4. Are no longer required change pointers reorganized in time?
The report RBDCPCLR (transaction BD22) to reorganize the change pointer should run periodically. Depending on how many change pointers are created or processed, you can schedule the background job hourly, daily or weekly. You should delete all obsolete and processed change pointers. You can also use this report for specified message types.
We come across change pointer technique while dealing with master data distribution thru ALE/IDOCs
When we want to reflect changes made to master data(i.e customer master, vendor master, material master ...) visible to other clients listed in customer distribution model, we follow change pointer technique.
What is customer distribution model?
A customer model depicts various messages (master data, transactional data) exchanged between the systems and establishes a sender and receiver of data
A customer model is always maintained on any system for the entire distributed network of SAP systems, so it must be distributed to various systems in the distributed network.
These r some details regarding change pointer technique which u may find it usefull.............
The change pointers technique is based on the change document technique, which tracks changes made to key documents in SAP, such as the material master, customer master, vendor master & sales orders. changes made to a document are recorded in the change document header table CHDHR, and additional change pointers are written in the BDCP table for changes relevant to ALE. BDCPS table stores the status of changed documents processed or not.
The process for distributing master data using change pointers involves the following steps.
The application writes change documents. SAP maintains change documents for
several objects in the system, such as materials, customers, invoices, and bank data, to provide an audit trail for changes made to an object. A change document object represents a set of tables for which changes are recorded. For example, the change document for the material master is named MATERIAL and it contains the various tables of the material master object, such as MARA and MARC.
When an application transaction makes changes to an object, the application writes change documents, which are stored in the CDHDR and CDPOS tables for each change made to an object.
Tip
Execute transaction SCDO to see a list of change document objects and
their tables.
The SMD (Shared Master Data) tool writes change pointers. When changes are made to an object, the SMD tool checks the ALE settings and consults the ALE distribution model to determine whether a receiver is interested in the object that was changed. If the system finds an appropriate receiver, the system creates change pointers in the BDCP table that point to change documents in the CDHDR table.
The ALE programs analyze change pointers and generate IDocs. SAP provides
standard function modules that read the change pointer table and generate IDocs for the objects that were changed. These programs are designed to ignore multiple changes and create only one IDoc. For example, if a material is changed four times before the function module is invoked, only one IDoc with the latest data from the material master data is created. The function modules are invoked by a standard report, RBDMIDOC. The selection parameters of this report allow you to specify the message type for which change pointers are to be analyzed. Configuration
you must carry out the following configuration steps to enable master data
distribution based on changes to the object.
Step 1: Enable Change Pointers Globally
Transaction: BD61
This option enables the change pointer process globally. Make sure that the flag is checked.
Step 2 :Enable Change Pointers for a Message Type
Transaction: BD50
This setting is required for activating change pointers for a specific message type.
make sure that the Active flag is checked for your message type.
Step 3 :Specify the Fields for Which Change Pointers Are to Be Written
Transaction: BD52
For standard master data objects such as the material, customer, and vendor objects, SAP already provides a list of fields for which change pointers are written. If you are satisfied with the standard set of fields, you can skip this step. If you want to add new fields, you must add entries for the required fields. If you are not interested in IDocs being generated for changes to a particular field, you can remove it from the list. For example, if you do not want to distribute the
material master for changes made to the Catalog Profile (RBNRM) field, you can delete this entry from the table.
Step 4: Changing a Field in the Master Data
Change a field in the master data object for which the change pointer is enabled. For example, if you change the net weight of a material in the material master data, a change pointer is written.
Tip : You can verify a change document and change pointer by viewing entries in
tables CDHDR and BDCP, respectively.
Step 5 :Executing Program RBDMIDOC to Process Change Pointers
Execute program RBDMIDOC to initiate the process of generating an IDoc. On the selection screen, specify the message type. For example, you can specify MATMAS. After you execute the process, it displays the number of entries processed.
Note :
Normally, you schedule this program to run frequently and start IDoc
generation for different message types.
Step 6 : View the idocs in WE02/05

What is meant by a wrapper class ?

What is meant by a wrapper class ?

java uses simple types such as int and char. these data type r not part of object hierarchy. they r passed by value to methods and cannot b directly passed by reference. there is no way for 2 methods to refer to the same instance of an int. at times u will need an object representation for one of these simple types.wrapper classes encapsulate or wrap the simple types within a class. thus, they r commonly referred to as type wrapper.
java provides classes that correspond to each of the simple types

What is meant by a resource leak ?

What is meant by a resource leak ?

Garbage collection manages only memory, not other system resources. If your Java program has plenty of free memory, garbage collection will not be triggered automatically. Usually, however, there are other resources that are more limited than memory. For example, all OSes have limits on the number of sockets, file handles, etc. that can be open. Sometimes this limit is quite low. This is true even on a desktop, e.g. if your system has 128KB of memory, your Java program can easily allocate all the available file handles without coming near to filling up the heap. If this happens, your Java program will fail. This is what we call a resource leak; the unintentional maintenence of references to non-memory resources.
This is why it is important in Java to explicitly manage non-memory resources. Classes which utilize non-memory resources should provide ways to explicitly allocate/deallocate those resources, independent of garbage collection. For example Socket, InputStream and OutputStream each provide explicit close() methods for deallocation of file descriptors, Window provides a dispose() method to free the window handle, etc. The way to properly use these classes is to allocate using the constructor, then deallocate using the appropriate method (deallocation is preferably done in a finally{} block, so it will execute whether or not an exception is thrown during use). These classes do release these non-memory resources in their finalize() method, but remember that the finalizer only gets called by the garbage collector, and if the object is never collected, it will never be finalized, hence will never release the resources.

JNDI Factory Object in JMS

Hi I am new to JNDI . Can any one say what is the need for factory object in JMS.
While i am trying to call from a java program to the IBM MQ in the Init_Contexr . I am creating factory object . What it is doing ?

you can post an xml document to the jms queue...!! It is possible.....!!
Do like this ...!! Generate the xml file with the content of your choice. Then place that xml file in a directory. Write a sender class which polls that directory and get that file into a message object. use QueueSender.send(message) ....! !! It will definetely solve your problem.

Create administered object

Hi,
I have a stand alone application which connect to an EJB server, so I would like to use the JMS provider in my application but I don't want to use my JMS provider for the creation of TopicFactory and Topic (and then use a lookup).
Is there a portable way to do this?
The only way I found is like that (with sun MQ) :
     com.sun.messaging.TopicConnectionFactory myConnFactory = new com.sun.messaging.TopicConnectionFactory();
         try {
              myConnFactory.setProperty("imqAddressList", "mq://localhost:7676/jms");
         } catch (JMSException je) {
         TopicConnection connection = myConnFactory.createTopicConnection();
         TopicSession pubSession = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
        TopicSession subSession = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
        com.sun.messaging.Topic myTopic = new com.sun.messaging.Topic();
        try {
             myTopic.setProperty("imqDestinationName", "new_topic_name");
        } catch (JMSException je) {
        TopicPublisher publisher = pubSession.createPublisher((javax.jms.Topic)myTopic);
        TopicSubscriber subscriber = subSession.createSubscriber((javax.jms.Topic)myTopic);
        // Set a JMS message listener
        subscriber.setMessageListener(this);
        // Intialize the Chat application
        set(connection, pubSession, subSession, publisher, username);
        // Start the JMS connection; allows messages to be delivered
        connection.start();

Several JMS implementations support JNDI lookups in pretty much any context. JNDI lookups are the recommended method of creating administered objects and they are for the most part portable (if by portable, you mean portable from JMS provider to JMS provider).
If you must create concrete objects, the only JMS agnostic method would be reflection and that would be pretty ugly.
Dwayne
============
http://dropboxmq.sourceforge.net

What is meant by referential integrity

hi
what is meant by referential integrity

Hi,
Referential integrity is the property that guarantees that values from one column depend on values from another column. This property is enforced through integrity constraints.
If you set this flag a check for referential integrity is performed for this InfoObject, against the master data table or ODS object. The InfoObject is checked for valid characteristic values.
It is used when v r doing Flexi update...
Prerequisites for checking for referential integrity:
Data is updated flexibly
You have activated error handling in the BW scheduler (Tab page Update)
On the Update tab page in the BW scheduler, you have selected the option Always update data, even when no master data exists for the data.
send ur id, i will send u screen shot of ref.integrity
regards
reena

What is a BW datasource? What is meant by maintaining a datasource?

What is a BW datasource? What is meant by maintaining a datasource?

Hi VSU,
A BW datasource is a structure, which is created in the source system and replicated to the BW system. Maintaining a datasource in a source system is doing any changes related to the datasource. It could be adding/deleting fields or checking the flags in the datasource like the hide and selection flag. Also, if the datasource is provided in the LO Cockpit, changes can be made there too depending on how the extraction of data is made for that datasource. Extraction could be of flat file extraction or of multiple flat structures ie., hierarchies.
There are four types of DataSource:
1) DataSource for transaction data
2) DataSource for master data
      a. DataSource for attributes
      b. DataSource for texts
      c. DataSource for hierarchies
NetWeaver 7.0, a new object concept is available for DataSources. It is used in conjunction with the changed objects concepts in data flow and process design (transformation, InfoPackage for loading to the PSA, data transfer process for data distribution within BI). The object type for a DataSource in the new concept - called DataSource in the following - is R3TR RSDS. The new DataSource concept cannot be used for transferring data from external systems (metadata and data transfer using staging BAPIs), for transferring hierarchies, or when using the IDoc transfer method.
Hope this will be helpful for clearing your doubts.
Regards,
Sridhar.

What is meant by administered objects in jms

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