Domain Object and Service oriented pattern

We have J2EE based application with following components, we are facing some issues with existing system.
Current System : We have J2EE based application. The following is the flow.
Client Layer [including JSP, Struts ] action classes  Delegates  Session fa�ade [Session bean]  DAO EJBDAO  EJB. We use CMP, xDoclets , JBOSS.
1.     Our Domain objects are heavy. I know they are suppose to be coarse objects but they take more time in loading. Also, we noticed one thing that lot of methods are called during Domain Object creation process and it takes lot of time in loading. Actually, we dont really know what is happening as we are using CMPs.
Question :
-     Any input on what can be done to avoid Domain object excessive loading time.
-     Anyone can share there experiences with Domain objects. Are you facing issues related with performance.
-     We dont use DTO, we pass domain objects between. Do you see any problem in doing that.
2.     Currently, our system was used by one single front end or lets say we have only one client but soon we will have more clients using it.
Question :
-     What should be our design approach. How can we make our system more like service oriented. If the two clients demand different business logic then how it will be handled. Business logic common to all the clients will be handled by which layer and business logic specific to client will be handles by which layer.
-     Please suggest based on our existing infrastructure. We don�t want to use SOAP or cannot make drastic changes to our flow.
We have domain and services in the same package and we are doing the refactoring of code, your inputs will be valuable.
Thanks
Sandipan

What type of logger do you use and what is the loger-level during production?
If it is log4j set the logger to level INFO or WARN.
This might sound trivia but can make a difference between 20seconds and 500 ms.

Similar Messages

Automatic generation of domain objects and database population framework

Hi, I've been working on my own project for a while now, having a good picture of what my business model should be and what domain should back it up I've run across an issue which I guess is very common in the community: What happens with all this objects in the domain?
To test them against a database I've to generate some of them, persist them and then run various operations to see if they work properly. The problem is that generating them and then populating your local database can be tedious at times. So I came up with this idea (maybe not a original one, it never is) to create a tool (a framework maybe) capable of feeding on POJOs inside JARs or some other class resource, creating mappings to generators (which are, of course, generic and use reflection to do their work) and then run all those generators a number of times placing their output into several sets and then persist the objects inside those sets using an EntityManager. All the dependencies must be provided at runtime, the tool does not have to know which are those classes it has to generate instances for.
Generating them through reflection shouldn't be much of a problem if I do it straightforward, the key of the matter is that it cannot be as straightforward as I would like it to be, for every class in the provided JARs I've to match them with configuration properties defined somewhere (XML maybe or Annotations which this object should already have) because not every field on the instance can be initialized the same way, and I don't mean their type either since I can know it through reflection, but many of these objects have database constraints declared, for example, and I've to take that into account when initializing the fields that are constrained.
Also on occasion I would like to have a class generated with data extracted from another source and not hardcoded into the generators (an XLS for example) which can be very practical for my production environment. Taking all of these into consideration I can see how my development time has increased tenfold.
Anyway, my question is simple. Do any of you know an utility or framework which could at least facilitate some of these tasks?

I think the usual way to test items is via JUnit. There are also other test suites based on JUnit such as JSUnit (for javascript testing), cactus, etc.
For testing, I try to test each object in isolation. For testing DAO objects, in each test, I write some test data to the development database (not production database), perform my test, then remove the test data (cleanup). I put the cleanup in a finally block to ensure it always runs (in case an exception is thrown). An alternative is to use mock objects (search google for something like 'java mock objects database junit'). Also in each test, I do the asserts that exercise the object as they would normally work first, followed by abnormal conditions, followed by conditions that may throw exceptions (if you want to test to that degree). You also might want to add code to automatically block the JUnit tests if it detects its running against production instead of development.

DAO and Domain Object

hi,
Normally when i want to persist a domain object like Customer object to a database, my statements will be below,
// code from my facade
Customer cust = new Customer();
cust.setFirstName("myname");
cust.setLastName("mylastname");
// set another attributes
cust.create();
with this code i have a CustomerPersistence object to handler for create this customer record to a database. Now j2ee have a DAO pattern. So my question is,
1.where is a domain object within DAO pattern? --> because of we can reused domain object.
2.DTO is Domain Object, isn't it?
3.when i look at some articles about DAO, many of it will present in this way
facade -->create DTO --> call DAO (plus something about factory pattern)
i never see something like this
facade --> domain object --> dao
any suggestion?
anurakth
sorry for my english!!

Hi,
I am a bit confused about implementation of the domain model and I wondered if you could help. My main concern is that I am introducing too many layers and data holders into the mix. Here is what I am thinking.
DTO - used to carry data between the presentation and the services layer
Service Class - coordinates the calling of domain objects
Domain Object - models a domain entity, service layer logic specific to this object is to be implemented here.
Data Object - an exact representation of a database table. many to many relationship between domain object and data object.
Hibernate DAO Class - has no properties, just methods used for read and writing the object to the database. It is passed in the Data Object for persistence. Is it wrong that the DAO contains no properties?
Perhaps the domain object will contain each data object it is comprised of. I was originally going to keep calls to DAOs in the Services class (as recommended in http://jroller.com/page/egervari/20050109#how_to_change_services_logic ) but I am thinking that each domain object could expose a save method, and that method would co-ordinate persisting itself to the various tables it is derived from.
Does this sound resonable? I have trouble finding a pattern on the net that clealy defines the Domain Model. I was tempted to map Domain Objects directly to database tables, and simply persist the Domain Object, but this 1-1 relationship may not always hold true.
Thanks.

Servers showing up multiple times in Sites and Services

I happened to catch something odd this morning while looking into another issue. When i open our domains Sites and Services and click on one of our 4 corporate DC's (3vm's one physical one of them being tested in production with server 2012 R2).
I'm seeing that a few of our servers in remote locations are showing up multiple times. However when I go to this server and click on who it's replicating with it's only showing one server and sometimes not even the same one as the corporate server.
Here is a screen shot I took.
The red's are all the same server (sorry boss has mandated we aren't allowed to put out the names for some reason). I'm a little confused as to what could be causing this. Anyone have any ideas?

Without better/more screenshots, it a bit hard to tell what you are seeing. However, in your statement
"...I'm seeing that a few of our servers in remote locations are showing up multiple
times. However when I go to this server and click on who it's replicating with it's only showing one server and sometimes not even the same one as the corporate server."
Replication is one-way connections and are always a PULL scenario. So for instance if
COR-DC-03 is replicating from COR-DC-01, the replication link will only be on COR-DC-03. COR-DC-01 may or may not replicate from 03. It may actually be replicating from another DC. Also, the AD ISTG (intersite topology generator) will always try to find the
most efficient replication and ensure that each DC has at least 2 replication partners, and there is no more than 4 hops to another DC. You have a number of sites and I assume there are DCs in there as well. All of those DCs need to replicate with one another.
Perhaps if you can draw or otherwise illustrate the issue you are seeing that would help.
Mark B. Cooper, President and Founder of PKI Solutions Inc., former Microsoft Senior Engineer and subject matter expert for Microsoft Active Directory Certificate Services (ADCS). Known as “The PKI Guy” at Microsoft for 10 years.

Bean vs Domain Object Responsibility

Any thoughts out there regarding the decision point on when to put functionality into a domain object (Customer, Order, Address, etc.) versus when to put it into an EJB that you plan to use? You usually start defining your object model and as you create sequence diagrams or collab. diagrams, you begin assigning methods to the classes. But at what point do you decide that functionality does NOT belong in the domain object and instead belongs outside of that object? EJBs have the ability to perform a lot of the work in an N-Tier system, so how do you draw the line on where the functionality goes? Any articles on the subject?
Thnx.
Dave

Any thoughts out there regarding the decision point on
when to put functionality into a domain object
(Customer, Order, Address, etc.) versus when to put it
into an EJB that you plan to use? When you need to access system resources, like connecting to the database, you may place the functionality in EJB. When you need to perform task of processing the domain object related information like the net purchase of the customer then you place the functionality in the domain object.
You usually start
defining your object model and as you create sequence
diagrams or collab. diagrams, you begin assigning
methods to the classes. But at what point do you
decide that functionality does NOT belong in the
domain object and instead belongs outside of that
object? EJBs have the ability to perform a lot of the
work in an N-Tier system, so how do you draw the line
on where the functionality goes? Any articles on the
subject?
Thnx.
DaveThats my opinion.
Best Regards,
Amitabh Choudhury.

Shoul I have my backing beans extend my domain objects?

Hi,
In our JSF application, most of our backing beans have the same properties that a corresponding domain object.
In order to have a clear separation between layers, we have a set of view objects and a separate set of domain objects. Once we populate the backing bean, we copy the value of properties to the domain object.
Since all the properties of my domain object are duplicated in my backing beans, we were wondering if it is a good (or bad) idea to extend (inherit) my backing beans from my domain objects, and pass the backing beans to my persistence and business layers. This will save us some work.
Thanks a lot for the advice.
Mauricio L.

I think I've solved my own issue though I'm not sure if it is the correct way to accomplish the task at hand.
When the button for login is clicked and the logginButton_action() method is called inside of my login_jsp_backing class I do the following:
User user = new User();
FacesContext.getCurrentInstance().getExternalContext().getSessionMap().put("User", user);
return user.doLogin(this.getInputUsername().getValue().toString(), this.getInputPassword().getValue().toString());
(The String return of this method in User is a navigation rule I've setup in my faces-config)
So my new question is that "Is this best practice?" or should I be doing it differently?
Message was edited by:
Steve Carlson

Annotation Agnostic Domain Objects

Hi,
I would like to know how we create annotation agnostic domain objects. At present, i have to DPL annotations in my domain object for persisting in BDB. Siince, i will be sharing
the domain objects with other projects which may or may not use BDB. So I would like to have annotation agnostic domain objects.
Is there a way to do it in BDB? I know its possible to do it with Base API. But i would like to know whether its possible it in DPL itself.
In BDB forums, there were some leads to use EntityModel and AnnotationModel which are not clear to use. I would like to have more example on this, if it is possible to do it by EntityModel or AnnotationModel.
Any help on this is Highly Appreciated.
Thanks
William

Hi William,
Just to make sure I understand your question. You basically want to have plain domain objects, non-annotated (non DPL annotated) POJOs representing the domain objects, and you want to use them with JE's DPL, without adding the DPL specific annotations to persist the objects (something similar to what you would do with Hibernate's mapping documents). Correct?
Regards,
Andrei

Object Oriented Patterns and Visio

Visio question:
Does anyone know if there are established shapes for each (or any) of the object oriented patterns? If not, is anyone working on that or interested in that?
Since they all have names (Momento, Proxy, Iterator, Mediator, Observer, etc.) it seems like they ought to each have their own shape. Since Object Oriented is all about communication of intent, each pattern having its own recognizable shape would go a long way toward a more meaningful communication through diagram. Also, if they each had their own shape, then the super-patterns (based on commonly grouped patterns and interactions) could also be easily represented.
Blaine

I'm kind of making an assumption here and if it's in error then feel free to disregard the rest of this post.
Assumption that you're thinking terms of shapes for representing in UML the various patterns. Everything you need is right there in front of you already regardless of whether you use Visio, Rational, Poseidon or some other UML tool.
Patterns are not individual constructs. One does not make a Mediator class. One makes a Java class that is an implementation of the Mediator pattern. As such you would see in the static class diagram the same grouping of classes for an X Mediator as you would for Y Mediator. That is the image you're looking for. It's not a single widget that you drag onto the screen, it's in the pattern itself.
If, however, you're talking about something like a graphical representation to give to managers that says "Here be Momento patterns", then I would postulate that you're trying to communicate information that they don't need nor should they concern themselves with. Patterns are an implementation issue. They deal with, "How" we will solve a problem, not what problem will we solve. Mangaers, IMNSHO, need only concern themselves with what problems we will solve, not how they will be solved.
Just my 2 krupplenicks on the subject, your milage may of course vary.
PS.

New Domain Controller does not show in our different site's Domain controller's Sites and Services

Hi,
we have two sites in our AD environment. OMA site and NY site. we have three domain controllers in our OMA site and two domain controllers in our NY site. All our DCs are windows server 2008R2 except one in our OMA site that is 2003R2 the domain
functional level is also 2003R2.
We decided to raise our functional level to 2008R2. I added a new domain controller in our OMA site and transferred all FESMOS from the DC that was running 2003R2 to this new domain controller.
the issue now is that our NY site does not make any connection with the new domain controller in OMA site. it does not even show it under sites and services. I have checked the DNS settings and everything. if you try to replicate the connections
from NY site it gives the following error: "The naming context is in the process of being removed or is not replicated from the specific server."
can anyone plz tell me why this is happening mt brain is just frozen at this moment and cant figure out why is this happening

Just noticed this replication issue has been going on for a while now but we never noticed until I added new DC. here is the error log for the NY site DC.
Log Name:      Directory Service
Source:        Microsoft-Windows-ActiveDirectory_DomainService
Date:          1/4/2014 8:11:40 AM
Event ID:      2042
Task Category: Replication
Level:         Error
Keywords:      Classic
User:          ANONYMOUS LOGON
Computer:      NORDC1.vertrue.com
Description:
It has been too long since this machine last replicated with the named source machine. The time between replications with this source has exceeded the tombstone lifetime. Replication has been stopped with this source.
The reason that replication is not allowed to continue is that the two DCs may contain lingering objects. Objects that have been deleted and garbage collected from an Active Directory Domain Services partition but still exist in the writable partitions
of other DCs in the same domain, or read-only partitions of global catalog servers in other domains in the forest are known as "lingering objects". If the local destination DC was allowed to replicate with the source DC, these potential lingering object
would be recreated in the local Active Directory Domain Services database.
Time of last successful replication:
2013-05-16 15:26:38
Invocation ID of source directory server:
9236ac56-d046-4632-b072-acbe823c5f6c
Name of source directory server:
accde843-11b2-476c-9783-9b29252d0ba5._msdcs.vertrue.com
Tombstone lifetime (days):
90
The replication operation has failed.
User Action:
The action plan to recover from this error can be found at
http://support.microsoft.com/?id=314282.
If both the source and destination DCs are Windows Server 2003 DCs, then install the support tools included on the installation CD. To see which objects would be deleted without actually performing the deletion run "repadmin /removelingeringobjects
<Source DC> <Destination DC DSA GUID> <NC> /ADVISORY_MODE". The eventlogs on the source DC will enumerate all lingering objects. To remove lingering objects from a source domain controller run "repadmin /removelingeringobjects <Source
DC> <Destination DC DSA GUID> <NC>".
If either source or destination DC is a Windows 2000 Server DC, then more information on how to remove lingering objects on the source DC can be found at
http://support.microsoft.com/?id=314282 or from your Microsoft support personnel.
If you need Active Directory Domain Services replication to function immediately at all costs and don't have time to remove lingering objects, enable replication by setting the following registry key to a non-zero value:
Registry Key:
HKLM\System\CurrentControlSet\Services\NTDS\Parameters\Allow Replication With Divergent and Corrupt Partner
Replication errors between DCs sharing a common partition can prevent user and compter acounts, trust relationships, their passwords, security groups, security group memberships and other Active Directory Domain Services configuration data to vary between
DCs, affecting the ability to log on, find objects of interest and perform other critical operations. These inconsistencies are resolved once replication errors are resolved. DCs that fail to inbound replicate deleted objects within tombstone lifetime
number of days will remain inconsistent until lingering objects are manually removed by an administrator from each local DC. Additionally, replication may continue to be blocked after this registry key is set, depending on whether lingering objects are
located immediately.
Alternate User Action:
Force demote or reinstall the DC(s) that were disconnected.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="Microsoft-Windows-ActiveDirectory_DomainService" Guid="{0e8478c5-3605-4e8c-8497-1e730c959516}" EventSourceName="NTDS Replication" />
    <EventID Qualifiers="49152">2042</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>5</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8080000000000000</Keywords>
    <TimeCreated SystemTime="2014-01-04T13:11:40.963263500Z" />
    <EventRecordID>38018</EventRecordID>
    <Correlation />
    <Execution ProcessID="660" ThreadID="1596" />
    <Channel>Directory Service</Channel>
    <Computer>NORDC1.vertrue.com</Computer>
    <Security UserID="S-1-5-7" />
</System>
<EventData>
    <Data>2013-05-16 15:26:38</Data>
    <Data>9236ac56-d046-4632-b072-acbe823c5f6c</Data>
    <Data>accde843-11b2-476c-9783-9b29252d0ba5._msdcs.vertrue.com</Data>
    <Data>90</Data>
    <Data>Allow Replication With Divergent and Corrupt Partner</Data>
    <Data>System\CurrentControlSet\Services\NTDS\Parameters</Data>
</EventData>
</Event>

Oracle Objects and Domains in Java Server Pages

We have defined this object in a Oracle 816 Enterprise:
CREATE TYPE DESCRIPTOR AS OBJECT
( ID VARCHAR2(30),
DESCRIPTOR VARCHAR2(80))
create TYPE descriptor_table AS VARRAY(30) of DESCRIPTOR
create table foo_test
(foo_test_id varchar2(10),
descrip descriptor_TABLE )
ALTER TABLE foo_test
ADD CONSTRAINT BIBL_test_PK PRIMARY KEY (foo_test_id)
then we have created in JDeveloper 3.1 an Entity (footest) object and a Domain (DescriptorDom) for the type DESCRIPTOR; then set the type of attribute descript to mypackage.DescriptorDom
After that, we created a JavaServer Page as follows:
<jsp:useBean class="oracle.jbo.html.databeans.JSRowSetBrowser" id="abean" scope="request" >
<% abean.setShowCurrentRow(true); abean.setVisibleRows(10); abean.setShowRecordNumbers(true); abean.setReleaseApplicationResources(false); abean.setDisplayAttributes("FooTestId,Descrip"); abean.initialize(pageContext,"ot_logics_LogicsModule.FooTestView");
abean.render();%>
</jsp:useBean>
The execution of JSP shows the error:
java.lang.ClassCastException
void oracle.jbo.domain.Struct.convertArrayToStruct()
java.lang.Object oracle.jbo.domain.Struct.getAttribute(int)
java.lang.String oracle.jbo.domain.Struct.toString()
void oracle.jbo.html.databeans.JSRowSetBrowser.internalInitialize()
void oracle.jdeveloper.html.WebBeanImpl.initialize(javax.servlet.ServletContext, javax.servlet.http.HttpSession,
javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.io.PrintWriter)
void oracle.jdeveloper.html.DataWebBeanImpl.initialize(javax.servlet.ServletContext, javax.servlet.http.HttpSession,
javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.io.PrintWriter, java.lang.String)
void oracle.jdeveloper.html.DataWebBeanImpl.initialize(javax.servlet.jsp.PageContext, java.lang.String)
void ot_pages_html.bibl_test._jspService(javax.servlet.http.HttpServletRequest,
javax.servlet.http.HttpServletResponse)
void oracle.jsp.runtime.HttpJsp.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
void oracle.jsp.app.JspApplication.dispatchRequest(javax.servlet.http.HttpServletRequest,
javax.servlet.http.HttpServletResponse)
void oracle.jsp.JspServlet.doDispatch(oracle.jsp.app.JspRequestContext)
void oracle.jsp.JspServlet.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
void javax.servlet.http.HttpServlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
void oracle.lite.web.JupServlet.service(oracle.lite.web.JupRequest, oracle.lite.web.JupResponse)
void oracle.lite.web.MimeServletHandler.handle(oracle.lite.web.JupApplication, java.lang.String, int,
oracle.lite.web.JupRequest, oracle.lite.web.JupResponse)
void oracle.lite.web.JupApplication.service(oracle.lite.web.JupRequest, oracle.lite.web.JupResponse)
void oracle.lite.web.JupAppHandler.handle(oracle.lite.web.JupRequest, oracle.lite.web.JupResponse)
void oracle.lite.web.HTTPServer.include(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
void oracle.lite.web.HTTPServer.forward(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
boolean oracle.lite.web.HTTPServer.handleRequest(oracle.lite.web.JupInputStream, java.io.OutputStream)
boolean oracle.lite.web.JupServer.handle(oracle.lite.web.JupInputStream, java.io.OutputStream)
void oracle.lite.web.JupHTTPListener$JupHTTP.run()
Please JTeam, could you illuminate me about how implement ORACLE objects in Entity object s and JavaServer Pages?
ps The code generated by JPublisher seems be more complete that done by wizard of Domains. We sould use JPublisher?. How set the attribute type?
Thank in advance.
J Luis

Hi,
It looks like this might be a bug. I am going to use the information you supplied to file a bug so our QA team can investigate.
We have had problems with arrays of structs, but hope to have them fixed with our next release.

Service Locator and session facade pattern

What are differences between Service Locator and session facade pattern?
For me it seems one and the same.
Please explain me in detail. Expecting kind help.
Thanks,
Rahul
Edited by: rahulb1 on Feb 26, 2008 5:07 PM

rdoekes wrote:
The ServiceLocator Pattern is a singleton which hold a map of used DataSources. The idea is that you perform a lookup once and use the cache afterwards. The session facade is just one DataSource lookup.huh? Those J2EE patterns are not really reduced to datasources and the SessionFacade has actually nothing to do with datasources.
Session Facade
It has Facade in it and a Facade is usually used to give a simple entrypoint by providing a standartized interface. The same is now with the Session Facade. You have a Session bean that represents a high-level business component that interacts and calls lower-level business components.
Imagine having client a accessing 5 business objects with the remote calls, which is not an efficient way (network latency) or accessing the SessionFace and the session face is doing all the work through local access.
Service Locator
As J2EE components are using JDNI to lookup for ejb interfaces,DataSources, JMS components, connections etc. isntead of writing all the lookup in many code piecess across the project, you write a service locator that gives you a centralized place to handle the lookup's. It's easier to maintain and to control such a setup.
As you can see there's quite a big difference ;-)
cya,
Nail

DMS Object Link at Maintenence Order and Service order level

Hi SAP Gurus,
We had a requirement for maintaining DMS Object at Service order and maintenence order level, as Standard DMS does not provide any Standard Object link at Order level, we went for development and following the Standard procedure i could bring the Order Tab in CV01N Object Links, and also i could search the relavent maintenence order and maintain documents relevant to it,
But the biggest problem now is i could not create DIR from the Maintenence or service order screen IW31, and the document i have placed at the order is not visible in the order screen at all,
i know it is some sort of enhancement in the Order screen to allow DMS Documents to appear in the Order screen to provide this funtionality.
let me pls know what exactly has to be done, as there is no config at the order level to get the DMS Screen, as DMS is not a standard object at the order level.
one approch as suggested is modifiying the Order screen or using Screen Exit Enhancement for Order but not sure which one to use or how to move ahead,
Thanks n Regards
Priya S

Dear Christoph Hopf
Many Thanks for your answer,
i went through the said SAP Note, but it only speaks about the notifications level, where SAP itself has provided the standard DMS Object links, and iam in latest ECC-6 version where this note is taken care of i think,
iam looking for creating DMS Document (DIR) from the maintenence Order IW31 transaction screen, and have developed new Object link for Maintenence order,
but the main problem is, iam not able to create DIR from the IW31 Screen directly as Maintennce order is not a standard SAP Object,
please let me know how to get the list of documents that i have attached to a maintenence order to appear in the IW32 maintenence order screen, and also we need to create the documents (DIR) directly from IW31 / 32 screens.
Thanks and Regards,
PriyaS
Edited by: Priya S on Aug 19, 2009 1:50 AM
Edited by: Priya S on Aug 20, 2009 1:54 AM
Edited by: Priya S on Aug 24, 2009 6:24 PM

GOS and Services for objects are same?

Hi
Pls clarify my points
Services for objects and GOS(Generic object service) are both same or different?
To my understanding it looks like different as follows
-Service for objects is single icon to click for attachment, can be used only from front end execution.
-GOS is a toolbar kind of icon, have collection of menu inside, can be used for background execution also.
Both functions are different? Pls confirm.
Regards
ckumar

Understood the problem
both are same

ORA-29857: domain indexes and/or secondary objects exist in the tablespace

I tried to drop tablespace APPS_TS_TX_DATA using drop tablespace APPS_TS_TX_DATA including contents and datafiles cascade constraints.
I got error ORA-29857: domain indexes and/or secondary objects exist in the tablespace.
After I have dropped all domain indexes, then tried to drop tablespace again, I still got the same error. I have searched metalink regarding this error, there is no hit.
What exactly objects in the tablespace are prevenng dropping the tablespaces?

BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for Solaris: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
ILMU88>
ILMU88> SELECT COUNT(*)
2 FROM dba_segments
WHERE tablespace_name = 'APPS_TS_TX_DATA';
3
COUNT(*)
14190
drop tablespace APPS_TS_TX_DATA including contents and datafiles cascade constraints;
drop tablespace APPS_TS_TX_DATA including contents and datafiles cascade constraints
ERROR at line 1:
ORA-29857: domain indexes and/or secondary objects exist in the tablespace

Replication with Domain and Sub domain in Active directory sites and services

I seen many AD enviroments and know that when you have mutiple DCs you use Active Directory Sites and services to replicate using the NTDS Settings. If you have a Domain and sub domain do you need to do this as well or does it sync up automatically because
it's a sub domain? A see a couple of domains where the NTDS settings isn't being used to snyc with the child domain. Just wondering if that is normal or will it cause authentication errors?

I seen many AD enviroments and know that when you have mutiple DCs you use Active Directory Sites and services to replicate using the NTDS Settings. If you have a Domain and sub domain do you need to do this as well or does it sync up automatically
because it's a sub domain? A see a couple of domains where the NTDS settings isn't being used to snyc with the child domain. Just wondering if that is normal or will it cause authentication errors?
Two way transitive trusts are configured automatically when you create a child domain or tree root domain. You don't have to worry about site/subnet or replication part at least from trust perspective. But make sure site's names are unique in each domain.
How Domain and Forest Trusts Work
http://technet.microsoft.com/en-us/library/cc773178%28v=ws.10%29.aspx
http://technet.microsoft.com/en-us/library/cc730868.aspx
http://blogs.technet.com/b/askds/archive/2008/09/24/domain-locator-across-a-forest-trust.aspx
Awinish Vishwakarma - MVP
My Blog: awinish.wordpress.com
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Domain Object and Service oriented pattern

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