Objects with no attributes

Any idea why an object must have attributes? Is there any good reason or is it just something Oracle did?
I can see why an instantiable object has to have attributes - otherwise what use is it - but a non-instantiable object seems like it often shouldn't need any - it's just there to be a generic place holder in an object hierarchy.
I'm getting kind of fed up with creating objects with a single attribute called "DUMMY".

Hi,
At least one attribute is mandatory for a TYPE Object.
Attributes like a data structure and Methods like a legal operation on Attributes.
An object type is the closest thing to a class.
It is also very similar to an abstract data type (ADT).
Regards,
Sailaja

Similar Messages

Inserting a new row in a BC4J View Object with an attribute of type BFileDomain

Hi all,
I've to insert a row in a View Object with an attribute of type oracle.jbo.domain.BFileDomain.
I do this within an Application Module's method, which has an input parameter of type byte[]. This parameter will be the content of the BFILE.
What's the right way for doing that?
I've tried with the following code, but I've got an exception in committing the transaction:
public int serializeDocument(int codDomanda, int codSorgente, byte[] content, String est, int type, int cost, String title, String arg) throws JboException {
int code = 0;
//File f;
DocumentiTwoView = getDocumentiTwoView();
java.sql.Statement stmt = ((DBTransaction) getTransaction()).createStatement(1);
try {
Row docRow = DocumentiTwoView.createRow();
SequenceImpl seq = new SequenceImpl("documenti_seq", getDBTransaction());
Integer next = (Integer) seq.getData();
code = next.intValue();
docRow.setAttribute("Coddocumento", new Number(code));
docRow.setAttribute("Titolo", (String) title);
docRow.setAttribute("Argomento", (String) arg);
docRow.setAttribute("Costo", new Number(cost));
docRow.setAttribute("Tipo", new Number(type));
docRow.setAttribute("Coddomanda", new Number(codDomanda));
docRow.setAttribute("Codsorgente", new Number(codSorgente));
//f = new File("Doc" + code + "." + est)
BFILE src_lob = null;
ResultSet rset = null;
rset = stmt.executeQuery ("SELECT BFILENAME('DOC_DIR', 'Doc" + code + "." + est + "') FROM DUAL");
if (rset.next()) {
src_lob = ((OracleResultSet)rset).getBFILE(1);
BFileDomain bfd = new BFileDomain(src_lob);
bfd.setBytes(content);
bfd.saveToDatabase(getTransaction());
docRow.setAttribute("Contenuto", (BFileDomain) bfd);
catch (Exception ex) {
getTransaction().rollback();
throw new oracle.jbo.JboException("Impossibile creare il nuovo documento:\n" + ex.getMessage());
finally {
try {
stmt.close();
catch (Exception nex) {
try {
// Commit the whole transaction
getTransaction().commit();
catch (Exception e) {
e.printStackTrace();
getTransaction().rollback();
throw new JboException("Impossibile eseguire il commit della transazione:\n" + e.getMessage());
return code;
Thanks a lot in advance!
Christian
null

Odd, have you disabled caching and indirection? (NoIdentityMap, dontUseIndirection, or alwaysRefresh/disableCacheHits). If so, then this could be the issue.
Otherwise please include the sample code you use to perform this, and verify that you do not have any unusual code in your set/get methods or in descriptor events. Also turn TopLink logging on and include a sample. Also ensure that you do not modify your objects until after registering them in the unit of work, and only modify the unit of work clones.

Extending Role Object with additional attributes

All,
I understand that there are 5 attributes available for the Object type as displayed in the 'object' table in the Sun IdM DB repository. As such, i would like to add to the Role object a couple of primitive type attributes. I would appreciate if anyone who has done this or has the knowledge do this would tell me how and where i can go about configuring the role object to have additional attributes besides the 'name' attribute. Thank you.

Wilfred,
we are trying out IDM 8.0 and release notes and administration guide for that version says that you can
extend attributes for Roles in IDM Schema Configuration Object.
But, documentation only specifies how to add a User extended attrbute, we tried adding
an attribute called escalators in the following way:
<IDMObjectClassConfiguration name='Role' extends='Object' displayName='UI_OBJECTCLASS_ROLE' description='Role description'>
<IDMObjectClassAttributeConfiguration name='escalators' queryable='true' summary='true'/>
</IDMObjectClassConfiguration>
we then modified Role Form.xml object and added the following for testing purposes:
<Field name='escalators'>
<Display class='MultiSelect'>
<Property name='title' value='Escalators'/>
<Property name='availableTitle' value='UI_ROLES_XML_AVAILABLE_OWNERS_LABEL'/>
<Property name='selectedTitle' value='UI_ROLES_XML_CURRENT_OWNERS_LABEL'/>
<Property name='allowedValues'>
<List>
<String>roleapprover</String>
<String>approver1</String>
</List>
</Property>
</Display>
</Field>
but the value in the Multiselect just goes to /dev/null....
Can you help us with describing how to add an extended role attribute for IDM 8.0
Thank you in advance

It seems you cannot clone objects with attributes using lazy loading in JPA

I have an entity with an attribute using lazy loading:
@Entity
public class B {
@ManyToOne(fetch=FetchType.LAZY)
private A a;
@Entity
public class A {
Assume the following code:
A a1 = new A();
A a2 = new A();
B b1 = EntityManager.find(B.class, ...);
b1.setA(a1);
B b2 = b1.clone();
b2.setA(a2);
Now with lazy loading enabled I get b1.getA() == a2 instead of b1.getA() == a1. Moreover, the debugger displays the same value holder in b1 and b2 for the attribute a. It appears as if cloning does not make a (deep) copy of the value holder managing the attribute a.
How can I create a copy b2 of b1, such that the value holder managing a in b1 is a different object as the value holder managing a in b2?
Thanks, Thomas.

I have filed a bug to have this addressed in Oracle TopLink 11gR1. I would recommend you file a bug against TopLink Essentials in GlassFish or if you have a support contract report the issue to metalink to have the issue resolved.
If this is urgent I did try fixing the issue with a small helper method using some reflection. This method is simplified through its throwing of Exception. If you wish to use something like this I would recommend proper error handling.
     * Helper method for cloning an entity and fixing the woven value-holders to
     * complete a proper shallow cloning.
    public static Employee clone(Employee entity) throws Exception {
       Employee clone = entity.clone();
       // Now fix the cloned ValueHolder references
       Field[] fields = entity.getClass().getDeclaredFields();
       for (int index = 0; index < fields.length; index++) {
           Field field = fields[index];
           if (field.getName().startsWith("_toplink_")) {
               field.setAccessible(true);
               ValueHolderInterface vhi = (ValueHolderInterface)field.get(entity);
               Object value = vhi.isInstantiated() ? vhi.getValue() : null;
               field.set(clone, new ValueHolder(value));
       return clone;
    }Doug

Sort view object rows with transient attributes

Hi ,
Is it possible to sort the results of a view object based on the populated transient attributes ?
Best regards
K

K,
Have you had a look at section 27.5 of the ADF Developer's Guide for Forms/4GL Developers ("Performing In-Memory Sorting and Filtering of Row Sets") - I've not tried it with transient attributes, but it does describe how to do in-memory sorting, as opposed to the normal way of sorting which is to send an ORDER BY to the database.
Hope this helps,
John

View Objects with Union Queries--trouble with primary keys

Hi,
I'm working with JDev 11.1.1.3 and am trying to do a couple of things (without success--yet). I am trying to create a master-detail relationship that displays the existing data in a set of 3 tables and later I will be creating forms for inserting and updating.
The table structure is like this:
Table: Member
Field: MemberIdx (PK)
Field: Data
Table: CfgPartner
Field: MemberIdx (PK)
Field: DocType (PK)
Field: DocRevision (PK)
Field: OtherData
Table: CfgB2BPartner
Field: MemberIdx (PK)
Field: DocType (PK)
Field: DocRevision (PK)
Field: B2BData
I have a View Object for the master table (Member). And I have created a 2nd View Object that is a union of the other two tables. There is some data in CfgPartner that doesn't have a matching record in CfgB2BPartner and vice versa. My thinking is that the two tables are related and I would like them to display within the same table on the ADF page.
My 2nd View Object has this query:
SELECT CfgPartner.MEMBERIDX,
CfgPartner.DOCTYPE,
CfgPartner.DOCREVISION,
CfgPartner.OTHERDATA,
CfgB2bpartner.B2BDATA
FROM CFG_PARTNER CfgPartner, CFG_B2BPARTNER CfgB2bpartner
WHERE CfgPartner.MEMBERIDX=CfgB2bpartner.MEMBERIDX(+)
and CfgPartner.DOCTYPE=CfgB2bpartner.DOCTYPE(+)
and CfgPartner.DOCREVISION=CfgB2bpartner.DOCREVISION(+)
UNION
SELECT CfgB2bpartner.MEMBERIDX AS MEMBERIDX1,
CfgB2bpartner.DOCTYPE AS DOCTYPE1,
CfgB2bpartner.DOCREVISION AS DOCREVISION1,
CfgPartner.OTHERDATA,
CfgB2bpartner.B2BDATA
FROM CFG_PARTNER CfgPartner, CFG_B2BPARTNER CfgB2bpartner
WHERE CfgB2bpartner.MEMBERIDX=CfgPartner.MEMBERIDX(+)
and CfgB2bpartner.DOCTYPE=CfgPartner.DOCTYPE(+)
and CfgB2bpartner.DOCREVISION=CfgPartner.DOCREVISION(+)
ORDER BY MEMBERIDX,DOCTYPE,DOCREVISION
The query is valid and runs fine in the database. However, the error I'm getting in the app module makes it sound like I don't have my primary keys set up correctly. Here is the error: (oracle.jbo.PersistenceException) JBO-26028: View object testCfgPtnrCfgB2BPtnr does not include a primary key attribute Memberidx of entity base CfgB2bpartner.
In the View Object it shows the attributes Memberidx, Doctype, Docrevision, Memberidx1, Doctype1, and Docrevision1 all as key attributes. The only strange thing I see is the Entity Usage for Memberidx1, Doctype1, and Docrevision1 are all empty and the info column says "Transient".
Any help would be appreciated.
-Steve

Hi,
I think that to achieve this you need to suround it with another "select from" statement and create alias for the columns
I created a test with the departments table (assuming that they are two different tables with different attributes) just to see that it works.
SELECT DEPID1,DEPID2,DEPNAME1,DEPNAME2
FROM(
SELECT Departments1.DEPARTMENT_ID AS DEPID1,
           NULL as DEPID2,
       Departments1.DEPARTMENT_NAME AS DEPNAME1,
          NULL as DEPNAME2
FROM DEPARTMENTS Departments1
UNION
SELECT Departments2.DEPARTMENT_ID AS DEPID2,
          NULL as DEPID1,
       Departments2.DEPARTMENT_NAME AS DEPNAME2,
         NULL as DEPNAME1
FROM DEPARTMENTS Departments2)The resulting VO will have 4 attributes and you can set the primary key to be (DEPID1,DEPID2)
If your 2 tables have common columns then these columns can have the same alias
If you have any problems let me know :)
Gabriel.

How can i filter an xml object on an attribute?

I want address an xml object with .(@ attributeNameHere == "textToSearchForHere") and have it return the node it’s associated with.
This is the text from the adobe help site and it’s similar to my actual code. I’m querying this xml object: staticVar.employee.(@id=="347"). FlashBuilder 4.7 is returning an error “No such variable: @id”. when I look in debugger.
This example is found in Adobe's help site: Adobe Flash Platform * Traversing XML structures
The help site says
The following expressions are all valid:
x.employee.(lastName == "McGee")—This is the secondemployeenode.
x.employee.(lastName == "McGee").firstName—This is thefirstNameproperty of the secondemployeenode.
x.employee.(lastName == "McGee").@id—This is the value of theidattribute of the secondemployeenode.
x.employee.(@id == 347)—The firstemployeenode.
public var staticVar:XML =
<employeeList>
      <employee id="347">
           <lastName>Zmed</lastName>
           <firstName>Sue</firstName>
           <position>Data analyst</position>
      </employee>
      <employee id="348">
           <lastName>McGee</lastName>
           <firstName>Chuck</firstName>
           <position>Jr. data analyst</position>
      </employee>
</employeeList>;
I’m expecting this: staticVar.employee.(@id=="347") will return the following node:
<employee nu="347">
<lastName>Zmed</lastName>
<firstName>Sue</firstName>
<position>Data analyst</position>
</employee>
If this is the wrong, then what is the correct way to access the xml node based on an attribute? How can i get that node 347 in this example to be found and returned? I've opened a ticket with the adobe help team and we're on the 8th day and they have not been helpful at all.

If you are using e4x as the result format for your service
you can do the following
//a XMLList of all day information
var result:Object = event.result.day;
//consits all information for month zero
var month0:XMLList = result.(@month == 0);
//consists of booking info for day 28 of month 0
var day28Month0:XMLList = month0.(@day == 28);
//this also can be done
//contains booking info for all months for day 28
var day28AllMonths:XMLList = result.(@day == 28);
Using this technique you should be able to gather info about
all user selected dates and build the smaller (filtered) list.
HTH

Using a polymorphic view object with binding

Hi,
I'm hoping there's something simple I'm missing when trying to setup up the bindings for a ADF/struts page using a polymorphic view object.
I'm using Entity and VO polymorphism to create a Question which has different types - boolean, multi-choice, likert, etc. I have the various question types created as sub type entity and view objects and added to the app module - when added to the app module the question types are subtypes of QuestionView so they don't actually appear in the Data Controls palette. This setup is like that used in Steve Muench's examples (blog at http://radio.weblogs.com/0118231/stories/2003/02/06/constructingTheDesiredEntityInAPolymorphicViewObject.html and the related undocumented one)
My question is, how do I get to the data and have jdev create the necessary bindings for the extra attributes the subtype questions have? Since they don't appear as available data controls I can't create a binding iterator or anything for them - short of adding them as spearate view objects (which destroys the whole point of using polymorphism in this case) is there a way to do this?
Really, the only reason I want to use the polymorphism is so I can have different types of entity validation depending on the type. Should I just simplify this to be one entity object with one VO and put all the validation into "if else's" based on a discriminator?
Assistance appreciated...
- Nathaniel

How else are you planning to associate a JUTableBinding to the 'common' iterator containing all four types of rows and then selectively display them? Perhaps you'd need a custom model over the JUTabelModel that'd filter the rows out.
I'm not sure if all that trouble is worth it given that your datasets (as far as mentioned in this post) are not large. If these tables/data has to be refreshed/executed a number of times, then you may see the overhead of four queries otherwise it should be fine as database is always faster in filtering rows than doing that in memory.

Custom Tag using object as an attribute.

I have read up on trying to pass an object as an attribute to a custom tag.
Is it true that the only way to do this is to put the object, using a "key name" in the pageContext
Then in the custom tag, set an attribute equal to the "Key Name"
Then in the TagHandler, to do a lookup using the "Key Name"
We can not just past objects into the attribute?
And what is this about using EL or JSP2.0
sorry sort of new to the whole game.

Certainly you can pass objects to tags.
However you need to use a runtime expression to do that.
such as <%= expr %> or (with JSP2.0) ${expr}
If you look at the JSTL library, it uses the EL and passes in objects all the time. However the EL actually accesses the page/request etc attributes as its variable space, so you are still technically using attributes.
Is it true that the only way to do this is to put the object, using a "key name" in the pageContext
then in the custom tag, set an attribute equal to the "Key Name"
then in the TagHandler, to do a lookup using the "Key Name"That is one way of doing it. The struts libraries use this method extensively. It is more suited to JSP1.2.
Sometimes it is easier/neater just to put the value into a scoped attribute, and pass in the name of that attribute. That way you don't need to worrry about the type of the attribute at all in your JSP.
Hope this helps some,
evnafets

Problem extending standard ViewReceiptsSearchVO view object with logic on get method

Hi All,
EBS 12.1.3
Database 11.2.0.3
I am trying to extend the 3 VOs related to ViewReceiptsSearch. I extended a seeded ViewReceiptsSearchVO view object. I haven't made any changes yet, no columns added, nothing altered. When I run this substitution, the "Received" column is null. This column in the view used for the view object only selects NULL and uses the getter method for the attribute to populate the value. The generated extension getter calls getAttributeInternal and skips the logic in the standard getter and the substituted view object is displaying the null in the screen. The below discussion explains the problem very well except that the original posted had the issue in 11.5.10.2. I am having this issue with 12.1.3.
Problem extending standard view object with logic on get method
The 3 VOs that I am having the problem are:
ViewReceiptsSearchVO
ViewReceiptsSearchReqVO
ViewReceiptsSearchSupplierVO
What do I need to do to get the "Received" column populated? Please let me know any additional information you want to troubleshoot the issue.
Thanks.

Hi,
Can you Please Share Extended ViewReceiptsSearchVO.xml and .jpx File?
Thanks,
Dilip

Authorization Object for Marketing Attributes

Hi Experts,
We are working with CRM 2007 and use in BP Marketing Attributes. Does someone know if there are any authorization objects for Marketing Attributes? We would like to restrict some of users to see some Attribute sets!
Thank you in advance,
Roula

Hi Roula,
Thank you so much for awarding points.
Please note that in Transaction PFCG you have to assign the appropriate three digit attribute set key under the authorization group BGKRL to the authorization object C_KLAH_BKL for assigning attribute sets and to the authorization object C_KLAH_BKP for editing attribute sets.
Please have a look at the Note in the bottom of the page at the following link for further information.
http://help.sap.com/saphelp_crm60/helpdata/en/46/3517cc86e01421e10000000a1553f6/frameset.htm
Regards,
Deepak

Use of Complex Oracle Object with JDBC

How can I use Oracle Object(or PL/Sql type) with JDBC
I have a structure of record with some attributes and table of another attribute.
My types are defined as follows !
<code>
CREATE TYPE EMPLOYEE_GRADES AS TABLE OF VARCHAR2(50)
CREATE TYPE EMPLOYEES AS OBJECT(EmpName VARCHAR2(50), EmpGrades Employee_Grades)
</code>
My custom object might have the following structure (or should it be different)
<code>
public class EmpColl implements CustomDatum, CustomDatumFactory
-- other stuff ----
/* fields */
public String empName;
public Collection empNos;
</code>
I want to pass an variable of type EMPLOYEES to an procedure.
Thanx in Advance
Chetan
[email protected]

<code>
CREATE TYPE EMPLOYEE_GRADES AS TABLE OF VARCHAR2(50)
CREATE TYPE EMPLOYEES AS OBJECT(EmpName VARCHAR2(50), EmpGrades Employee_Grades)
</code>The easiest is to use JPublisher (which comes with the SQLJ distribution).
Say:
jpub -user=username/password -sql=EMPLOYEES:Employees,EMPLOYEE_GRADES:EmployeeGrades
You will get (among others) the Java files Employees.java and EmployeeGrade.java. Go ahead, compile and use them.
Look in [Oracle Home]/sqlj/demo/jpub for a number of additional examples, and in the JPublisher User's Guide for background info.
The next (9.2) release of JPublisher will also provide some support for accessing legacy PL/SQL types from Java.

BC4J Objects with PKs based on two columns using multiple sequences

I have implemented a BC4J object that is based on a DB table that has two columns as the primary key. For example Table A's primary key is Group and ID and there is a DB sequence for each Group.
I use the BC4J object using servlets and JSPs and I have been able to implement an Update form.
I now want to implement a Create (New) form. I've read forum postings and info on the help regarding using the SequenceImpl class to override the EntityImpl object's create method as shown below:
protected void create(AttributeList attributeList)
super.create(attributeList);
SequenceImpl mySeq = new SequenceImpl("MY_SEQ",getDBTransaction());
setMyObjectId(mySeq.getSequenceNumber());
But as you can see I need to know the value of the group attribute before I can get the next value sequence:
For new EO belonging in Group1 I need sequence from "GROUP1_SEQ", Group 2 from "GROUP2_SEQ", etc.
I would like to put this code in the Entity Object where it belongs. I guess my problem is simply how to create a new row in the View Object with a passed parameter which is the value of Group.
Thanks in advance!

Angelo:
How is the EO suppose to receive the group id? Is it from the view row? If so, the VO can pass that group id to the EO through the attribute list and calling the
public Row createAndInitRow(AttributeList nvp);
API.
Example code would be:
ViewObject myVO;
// myVO is initialized
AttributeList nvp = new oracle.jbo.NameValuePairs();
// GroupID is the attr name of the Group ID
nvp.setAttribute("GroupID", <some-value>);
Row row = myVO.createAndInitRow(nvp);
If you do that the create(AttributeList attributeList) method of the EO will receive the GroupID value coming from the VO.
Then, you can use that for your sequence.
Thanks.
Sung

How to combine a content search with an attribute search with the API

Hi
I have been working with searches in Content Services using the API and I have successfully set up the search over the contents of a document and inside of the Category attributes of the document.
My problem comes when I try to combine this 2 kinds of search, that is when I want to find all the documents that cointain the text "test" and at the same time contain other text into their category attributes.
What I do is to build 2 SearchExpression's one for the content search and the other for the attributes search and then joining them in a third SearchExpression object using the FdkConstants.OPERATOR_AND. When I search using only the first or the second SearchExpression everything works fine. But when I do the search using the third SearchExpression an ORACLE.FDK.ParameterError:ORACLE.FDK.InvalidSearchExpression
exception id raised.
The code I'm using is like this:
private SearchExpression getMainSE(String contentQuery, CategoryInfo catInfo)
     SearchExpression contentSE = null;
     SearchExpression catSE = null;
     SearchExpression mainSE = null;
     if(contentQuery != null)
          contentSE = this.setupSE4Contents(contentQuery);
     if(catInfo != null)
          catSE = this.setupSE4Category(catInfo);
     if(contentSE != null && catSE != null)
          mainSE = new SearchExpression();
          mainSE.setLeftOperand(FdkConstants.OPERATOR_AND);
          mainSE.setLeftOperand(catSE);
          mainSE.setRightOperand(contentSE);
     else
          mainSE = contentSE != null ? contentSE : catSE;
     return mainSE;
CategoryInfo is one class made by my own that contains the categoryId of the document and a List of the attributes where I want to search. mainSE is the SearchExpression that is returned.The portion of code that appears to be having problems is this:
if(contentSE != null && catSE != null)
     mainSE = new SearchExpression();
     mainSE.setLeftOperand(FdkConstants.OPERATOR_AND);
     mainSE.setLeftOperand(catSE);
     mainSE.setRightOperand(contentSE);
And finally I only execute the search using the mainSE returned by the function:
// Define search options
NamedValue[] nv = WsUtility.newNamedValueArray(new Object[][] {
     { Options.FOLDER_RESTRICTION,
          folder != null ? new Long(folder.getId()) : null },
     { Options.SEARCH_VERSION_HISTORY, Boolean.TRUE } });
     SearchExpression mainSE = this.getMainSE(contentQuery, catInfo);
     try
          // Search documents
          NamedValue[] result = sem.search(mainSE, nv, null);
          // etc....
Is this the correct way to combine a content search with an attribute search???
I know that this is possible since I have seen that it can be done in the Collaboration Suite UI.
I hope yoy can help me...
Thanks in advance

Not sure if this is a typo (while pasting code on the forum) or is the cause of the problem you describe.
Shouldn't mainSE.setLeftOperand(FdkConstants.AND) be replaced by mainSE.setOperator(FdkConstants.AND) ?
Ravikiran

Send Object With a Note

Hi
When selecting 'Send object with a note' from a purchase order and clicking on the 'Attributes' tab the Sensitivity is set to '502 Confidential'. Can you please advise how to change the sensitivity to '501 Standard'?
Thanks

Hi all,
I have found the solution for it.
Share with you.
Inside Function Group:CRM_1O_UI
Include LCRM_1O_UIF17
for the 'is_disabled' field control the status of the corresponding fcode.
Update following code:
{   INSERT         xxxxx                                      1
if sy-cprog = 'SAPMCIC0'.
    CALL METHOD toolbar_create_process0->add_button
      EXPORTING
        fcode       = lv_fcode
        icon        = lv_icon
        butn_type   = lv_type
        text        = lv_text
        quickinfo   = lv_tip
        is_disabled = 'X'.
else.
*}   INSERT
    CALL METHOD toolbar_create_process0->add_button
      EXPORTING
        fcode       = lv_fcode
        icon        = lv_icon
        butn_type   = lv_type
        text        = lv_text
        quickinfo   = lv_tip
        is_disabled = ' '.
*{   INSERT         xxxxx                                       2
endif.
*}   INSERT

Objects with no attributes

Similar Messages

Maybe you are looking for