Data class and Delivery class in ABAP Dictionary

Hi all,
I want to know the exact information about Data class and Delivery class in ABAP Dictionary
Moderator message : Search for available information. Thread locked.
Edited by: Vinod Kumar on Aug 3, 2011 1:35 PM

As your name Suggests, there were exactly 21 rajapandian already who wanted exact information about Data class and Delivery class. Fortunately some has found the information by own and some were dumped by SAP Police.
Cheers
Amit

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Difference between Data Class and Delivery Class

What is the Difference between Data Class and Delivery Class , what happens Phisically to the Data .
Moderator message: what is the difference between your question and a question that we'd welcome here in the forums?
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Edited by: Thomas Zloch on Nov 22, 2010 1:17 PM

What is the Difference between Data Class and Delivery Class , what happens Phisically to the Data .
Moderator message: what is the difference between your question and a question that we'd welcome here in the forums?
[Rules of engagement|http://wiki.sdn.sap.com/wiki/display/HOME/RulesofEngagement]
Edited by: Thomas Zloch on Nov 22, 2010 1:17 PM

I want the Definitaion fo Class and its Components in ABAP . With Example

Gowri

Classes
Classes are templates for objects. Conversely, you can say that the type of
an object is the same as its class. A class is an abstract description of an object. You could say that it is a set of instructions for building an object. The attributes
of objects are defined by the components of the class, which describe the
state and behavior of objects.

Local and Global Classes
Classes in ABAP Objects can be declared either globally or locally. You define global classes and interfaces in the Class Builder (Transaction SE24) in the
ABAP Workbench. They are stored centrally in class pools in the class library
in the R/3 Repository. All of the ABAP programs in an R/3 System can access the global classes. Local classes are defined within an ABAP program. Local classes and interfaces can only be used in the program in which they are defined. When you use a class in an ABAP program, the system first searches for a local class with the specified name. If it does not find one, it then looks for a global class. Apart from the visibility question, there is no difference between using a global class and using a local class.
There is, however, a significant difference in the way that local and global classes are designed. If you are defining a local class that is only used in a single program, it is usually sufficient to define the outwardly visible components so that it fits into that program. Global classes, on the other hand, must be able to be used anywhere. This means that certain restrictions apply when you define the interface of a global class, since the system must be able to guarantee that any program using an object of a global class can recognize the data type of each interface parameter.
The following sections describe how to define local classes and interfaces in an ABAP program. For information about how to define local classes and interfaces, refer to the Class Builder section of the ABAP Workbench Tools documentation.
Defining Local Classes
Local classes consist of ABAP source code, enclosed in the ABAP statements CLASS ... ENDCLASS. A complete class definition consists of a declaration part and, if required, an implementation part. The declaration part of a class <class> is a statement block:
CLASS <class> DEFINITION.
ENDCLASS.
It contains the declaration for all components (attributes, methods, events) of the class. When you define local classes, the declaration part belongs to the global program data. You should therefore place it at the beginning of the program.
If you declare methods in the declaration part of a class, you must also write an implementation part for it. This consists of a further statement block:
CLASS <class> IMPLEMENTATION.
ENDCLASS.
The implementation part of a class contains the implementation of all methods of the class. The implementation part of a local class is a processing block. Subsequent coding that is not itself part of a processing block is therefore not accessible.
Structure of a Class
The following statements define the structure of a class:
A class contains components
Each component is assigned to a visibility section
Classes implement methods
The following sections describe the structure of classes in more detail.
Class Components
The components of a class make up its contents. All components are declared in the declaration part of the class. The components define the attributes of the objects in a class. When you define the class, each component is assigned to one of the three visibility sections, which define the external interface of the class. All of the components of a class are visible within the class. All components are in the same namespace. This means that all components of the class must have names that are unique within the class.
There are two kinds of components in a class - those that exist separately for each object in the class, and those that exist only once for the whole class, regardless of the number of instances. Instance-specific components are known as instance components. Components that are not instance-specific are called static components.
In ABAP Objects, classes can define the following components. Since all components that you can declare in classes can also be declared in interfaces, the following descriptions apply equally to interfaces.
Attributes
Attributes are internal data fields within a class that can have any ABAP data type. The state of an object is determined by the contents of its attributes. One kind of attribute is the reference variable. Reference variables allow you to create and address objects. Reference variables can be defined in classes, allowing you to access objects from within a class.
Instance Attributes
The contents of instance attributes define the instance-specific state of an object. You declare them using the DATA statement.
Static Attributes
The contents of static attributes define the state of the class that is valid for all instances of the class. Static attributes exist once for each class. You declare them using the CLASS-DATA statement. They are accessible for the entire runtime of the class.
All of the objects in a class can access its static attributes. If you change a static attribute in an object, the change is visible in all other objects in the class.
Methods
Methods are internal procedures in a class that define the behavior of an object. They can access all of the attributes of a class. This allows them to change the data content of an object. They also have a parameter interface, with which users can supply them with values when calling them, and receive values back from them The private attributes of a class can only be changed by methods in the same class.
The definition and parameter interface of a method is similar to that of function modules. You define a method <met> in the definition part of a class and implement it in the implementation part using the following processing block:
METHOD <meth>.
ENDMETHOD.
You can declare local data types and objects in methods in the same way as in other ABAP procedures (subroutines and function modules). You call methods using the CALL METHOD statement.
Instance Methods
You declare instance methods using the METHODS statement. They can access all of the attributes of a class, and can trigger all of the events of the class.
Static Methods
You declare static methods using the CLASS-METHODS statement. They can only access static attributes and trigger static events.
Special Methods
As well as normal methods, which you call using CALL METHOD, there are two special methods called CONSTRUCTOR and CLASS_CONSTRUCTOR, which are automatically called when you create an object (CONSTRUCTOR) or when you first access the components of a class (CLASS_CONSTRUCTOR).
Events
Objects or classes can use events to trigger event handler methods in other objects or classes. In a normal method call, one method can be called by any number of users. When an event is triggered, any number of event handler methods can be called. The link between the trigger and the handler is not established until runtime. In a normal method call, the calling program determines the methods that it wants to call. These methods must exist. With events, the handler determines the events to which it wants to react. There does not have to be a handler method registered for every event.
The events of a class can be triggered in the methods of the same class using the RAISE EVENT statement. You can declare a method of the same or a different class as an event handler method for the event <evt> of class <class> using the addition FOR EVENT <evt> OF <class>.
Events have a similar parameter interface to methods, but only have output parameters. These parameters are passed by the trigger (RAISE EVENT statement) to the event handler method, which receives them as input parameters.
The link between trigger and handler is established dynamically in a program using the SET HANDLER statement. The trigger and handlers can be objects or classes, depending on whether you have instance or static events and event handler methods. When an event is triggered, the corresponding event handler methods are executed in all registered handling classes.
Instance Events
You declare instance events using the EVENTS statement. An instance event can only be triggered in an instance method.
Static Events
You declare static events using the CLASS-EVENTS statement. All methods (instance and static methods) can trigger static events. Static events are the only type of event that can be triggered in a static method.
See also Triggering and Handling Events.
Types
You can define your own ABAP data types within a class using the TYPES statement. Types are not instance-specific, and exist once only for all of the objects in a class.
Constants
Constants are special static attributes. You set their values when you declare them, and they can then no longer be changed. You declare them using the CONSTANTS statement. Constants are not instance-specific, and exist once only for all of the objects in a class.
Visibility Sections
You can divide the declaration part of a class into up to three visibility areas:
CLASS <class> DEFINITION.
PUBLIC SECTION.
PROTECTED SECTION.
PRIVATE SECTION.
ENDCLASS.
These areas define the external visibility of the class components, that is, the interface between the class and its users. Each component of a class must be assigned to one of the visibility sections.
Public Section
All of the components declared in the public section are accessible to all users of the class, and to the methods of the class and any classes that inherit from it. The public components of the class form the interface between the class and its users.

Protected Section
All of the components declared in the protected section are accessible to all methods of the class and of classes that inherit from it. Protected components form a special interface between a class and its subclasses. Since inheritance is not active in Release 4.5B, the protected section currently has the same effect as the private section.
Private Section
Components that you declare in the private section are only visible in the methods of the same class. The private components are not part of the external interface of the class.
Encapsulation
The three visibility areas are the basis for one of the important features of object orientation - encapsulation. When you define a class, you should take great care in designing the public components, and try to declare as few public components as possible. The public components of global classes may not be changed once you have released the class.
For example, public attributes are visible externally, and form a part of the interface between an object and its users. If you want to encapsulate the state of an object fully, you cannot declare any public attributes. As well as defining the visibility of an attribute, you can also protect it from changes using the READ-ONLY addition.
"Example :
CLASS C_COUNTER DEFINITION.
PUBLIC SECTION.
 METHODS: SET_COUNTER IMPORTING VALUE(SET_VALUE) TYPE I,
 INCREMENT_COUNTER,
 GET_COUNTER EXPORTING VALUE(GET_VALUE) TYPE I.
PRIVATE SECTION.
 DATA COUNT TYPE I.
ENDCLASS.
CLASS C_COUNTER IMPLEMENTATION.
METHOD SET_COUNTER.
 COUNT = SET_VALUE.
ENDMETHOD.
METHOD INCREMENT_COUNTER.
 ADD 1 TO COUNT.
ENDMETHOD.
METHOD GET_COUNTER.
 GET_VALUE = COUNT.
ENDMETHOD.
ENDCLASS.
The class C_COUNTER contains three public methods - SET_COUNTER, INCREMENT_COUNTER, and GET_COUNTER. Each of these works with the private integer field COUNT. Two of the methods have input and output parameters. These form the data interface of the class. The field COUNT is not outwardly visible.
Reward points if it is usefull...
Girish

Data class and storage class

Hi ,
I need some info or docs on data class and stroge class of DSO /cube.
Regards
tapashi

Hi Tapashi,
Something i found about dataclass in DSO/Cube, which might be useful to you.
Within SAP BW following data class of DDIC objects are important:
DDIM           Dimension Tables in BW of InfoCubes
DFACT          Facts Table in BW of InfoCubes
DODS           ODS Tables in BW
These have been introduced in order to improve performance while reading/writing InfoProviders. Settings of data class are maintained in "Technical Settings -> Database storage parameters" screen of TA SE11. Data class is assigned to the database tables of the InfoCube (table RSDCUBE, RSDODSO). Notice that this assignment cannot be made by any circumstances by user, only system does this while you activate InfoProvider.
Subsequently see overview of table RSDCUBEu2019s fields with link to data class according BW versions:
SAP BW 3.x (parameters only affect aggregates, not the cube):
AGGRDATCLS     Data class for aggregate fact tables (only aggregates)
AGGRSIZCAT     Size category for aggregate fact tables
ADIMDATCLS     Data class for aggregate dimension tables
ADIMSIZCAT     Size category for aggregate dimension tables
Furthermore see overview of RSDODSOu2019s fields for DSO objects as InfoProvider with link to data class:
ODSADATCLS     Data class for table with active data of the ODS
ODSMDATCLS     Data class for table with ODS input data
To see all available data classes check table: DDART (DD: Data Class in Technical Settings)
To see all available size categories check table: DGKAT (DD: Size category in technical settings)
Hope this is helpful.
Regards
Snehith

What are exception class and persistant class?

hi,
what are exception class and persistant class?
how are they different from the normal class?
Regards,
Anil

Hii!
Persistent Classes
To use the Persistence Service for objects, the classes of these objects must be created as persistent classes in the Class Builder. The term persistent class does not imply that a class is persistent. (As a template for objects, every class is persistent). Rather, it means that the objects of that class and their state are managed by the Persistence Service. For example, the objects of these classes are instantiated in the ABAP program with a method of the Persistence Service, which ensures that the initialization is correct (not with the usual CREATE OBJECT statement). When the Class Builder creates a persistent class, it automatically generates an associated class, known as the class actor or class agent, whose methods manage the objects of persistent classes. As well as their identity, persistent classes can contain key attributes, which allow the Persistence Service to ensure that the content of each persistent object is unique.
Check out this link
http://www.sapnet.ru/abap_docu/ABENABAP_EXCEPTION_CLASSES.htm
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Abhijeet

What is the difference between document class and normal class

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Please let me know what is the difference between document class and normal class.
And I have no idea which class should call as document class or call as an object.
Thanks
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the document class is invoked immediately when your swf opens. the document class must subclass the sprite or movieclip class.
all other classes are invoked explicitly with code and need not subclass any other class.

Tables for development class and Message Class

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In which table is Message Class and Development class stored.
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Santosh

Hi All,
I am closing this thread..I was looking for a single table which does this and it is TADIR with object = MSAG
Thanks,
Santosh
Edited by: Santosh Kumar KezkhepatMelathil on Aug 29, 2008 1:32 PM

What is the relation between main class and inner classes

hi
i want to make a UML design and o want to know how to draw the relation betwwen the main public class and inner classes?
and what is the relation?

BaffyOfDaffyA wrote:
Please keep in mind that if you spell better you will get better answers and if you add duke stars you will get better answers and if you mark the thread as a question you will get better answers. That will make it look like you are paying attention and that you really want an answer.
My best answer based on your rather vague question:
A minimal public class in a file named "Minimal.java" in the directory named "minimal":
package minimal;
public class Minimal {
private int variable;
public Minimal(int var) {
variable = var;
public int getVariable() {
return variable;
}This would be an example of adding an inner class:
package minimal;
public class Minimal {
private int variable;
public Minimal(int var) {
variable = var;
public int getVariable() {
return variable;
public class Inner {
private int innerVariable;
public Inner(int var) {
innerVariable = var;
public int getInnerVariable() {
return innerVariable;
}The inner class is exactly like any other inner class except if you are accessing it from anything else other than Minimal then you would have to add Minimal. right before Inner for example, where the Minimal class could use
Inner inner = new Inner(5);other classes would have to use
Minimal.Inner inner = new Minimal.Inner(5);
See [Inner Class Example|http://java.sun.com/docs/books/tutorial/java/javaOO/innerclasses.html] or [Nested Classes|http://java.sun.com/docs/books/tutorial/java/javaOO/nested.html] for more information.
He is probably not asking what an inner class is or how to declare one in raw source code. To me he is asking how do I
explain this relationship in a UML diagram and as UML is not and exact science and expression can vary a lot
between UML design applications I didn't want to stab in the dark.
@OP I would say whatever seems most logical to you and your team, write something that reads.

Processing classes , evaluation classes and cumulation classes

Hi All ,
   Can anybody give the details of PCR in HR and how to use processing classes and evaluation classes in PCR.
Regards ,
Santosh.

Hi,
we have an operation VWTCL which checks the Processing class and its specification in PCR.
go to T.Code: PE04 and check the operations documentation you will get clarity.
Operation VWTCL VV reads the specification of processing class VV for the current wage type in table T512W, and enters this as a single-character entry in the variable argument of the personnel calculation rule. Function VWTCL is a decision operation.
for example:
X010 Determination of valuation bases INTERNATIONAL
        VWTCL 01   Processing class
            ERROR      Cancel processing
          0
            ADDWT *    OT   Output table
    1
        VWTCL 01   Processing class
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          1
            ADDWT *    OT   Output table
            ELIMI Z    Elim.time period ID
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mohammed

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What is difference between LinkedList class and ArrayList class ??

Hi samue!
If you had typed that question you would have got many answers.anyway
difference between Linked List and ArrayList
1.In linked list each element is stored as an object but not in arraylist
2.Linked list need iterator to go through its contents but not arraylist
3.reading element from each takes same time but if you want to add or remove element from the arraylist it takes considerable amount of time depending on the index number. in Linkedlist case it takes constant amount of time to add/remove at any index.
this should be enough guess to know the difference but if u need try goooogle

Singleton pattern class and static class

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what is difference between the singleton pattern class and static class ?
in singleton pattern, we declare a static member[which hold one value at a time] ,static method[ which return static member value] and a private constructor[not allow to direct instantiation]. My words are -- as a singleton pattern we implement static class .
so can we say a singleton pattern is static class it means both are same or is any difference between these two ??

malcolmmc wrote:
On several occasions I've had to convert a static (never instanceated) class to a singleton type, for example because I realise I need an instance per thread, or I decide to make a program more modular, with more than one configuration.
I've never done the opposite.
So generally I favour the singleton if there any "state" involved, because it's more flexible in unanticipated directions. It also gives extra flexibility when building tests, especially if you program to an interface.Total agreement; if anything it is dead hard to override static method logic with mock code in unit tests (I had to do it by keeping the static methods in place but making them internally use a singleton instance of itself of which the instance variable could be overwritten with a mock implementation for unit testing purposes...).
'Static classes' and/or methods are great for very simple util functions, but I wouldn't use them for anything other than that.

Difference between Material Class and Batch Class

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What is the difference between Material Class and Batch Class?
and how can we use these classes?
Rgds,
Ajit

Iam not sure but i think
1) Material class for sorting purpose
2) Batch Class for Batch Management
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K.Prabakaran

Owner Class and Base Class ?

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What is an Owner class and base class?
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the question is related to oracle java class or samething else?
I dont understand your question.
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Evaluation classes and cumulation classes

Hi All ,
Can anybody give the information about evaluation classes and cumulation classes in HR and how they affects the payroll.It is better for me if any one give the scenario to understand these concepts.I know the basics of these things i.e in which view these details are maintained for wagtypes.
Thanks in advance.
Regards ,
Santosh.

Hi Santosh,
For any wagetype to process in payroll these cummulation class and evlatuion class is important.As payroll is Country specific each county has specific base for calculating Cummulation class.
Cummulation Class: In payroll there are two types of cummulation
(a) Cummulation of wage types over another wage type
(b) Cummulation of wage types over a period of time
For the first one it is used to calculate the base for different tax calculation. It is represented by /1 series wage types. Examples For HRA Basis it is /111 and the base is mainly Basic+DA...etc.
For the second one it is calculated by Processing class 30 Specification 0,1,2,3 and T. The related tables are V-T54c1, V_T54c4 and V_T54c3
Evaluation Class: This is used mainly for reports i,e Form 16, Form 24, Payslips etc. In India mostly used Evaluation classes are
02 - For Payments and Deductions in Payslip
06 - For Sec 17(1) For Total Gross
07 - For Sec 10 Deductions
09 - For Sec 17(3) For Perks
08 - For Sec 17(2) For Income from other sources
11 - For Sec 217 2 (A)
* All these reports you can see in table V-T512w_D or V_t512w_O
I think this will help you
Best Regards
Baidya

Processing classes, cumulation classes and evaluation classes

Hi Friends,
What is the diff between processing classes, cumulation classes and evaluation classes. where we see these three and what is the table no. for this?

.) Processing Class - A wage type characteristic that controls processing during Payroll. There are different processing classes for the various processing steps that are performed within Payroll. During the payroll run, SAP R/3 processes a wage type in a specific processing step according to its individual specification in the respective processing class.
Cumulation class - Cumulation class are used to cumulate the model wage types to generate the /1** technical wage types.
Example - Processing class 20 is used for cumulation and processed by PCR X023. Now suppose you have set specifiction as 8. Now if you will check PCR X023 for spec 8, it says to cumulate wage type into cumulation class which are ticked. Like may be you want to cumulate a model wage type into /101, set PCL 20 as 8 and tick cumulation class 1.
Evaluation Class - Wage type characteristic that controls processing when payroll results are evaluated and displayed. There are various evaluation classes for the different processing steps that are performed when payroll results are evaluated and displayed.
Example
In the standard system, the specifications for evaluation class 02 determine how a wage type is printed on a form that is payslip.
Specification 00: no printing on the form
Specification 01: prints personal payments/deductions
Specification 02: prints wage types included in the total gross amount
Specification 03: prints wage types derived from time-based payments and included in the total gross amount

Data class and Delivery class in ABAP Dictionary

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