Generating Getters/Setters/Interface methods

Hi All,
Quick question, ive used Eclipse before, and in it you can generate getters and setters for your class variables
as well if you have a class that IMPLEMENTS some interface
it also could let you generate the methods from that interface.
Can JES 8 do this?
Let me know how, i am kind of tired of writing myself.
Thank you everyone

The getter/setter generator is accessible from the Refactoring menu, in both the main menu and the editor context menu. It is referred to as Encapsulate Fields.
Implementing methods is available via the keyboard shortcut Ctrl-i and in the Tools menu as "Override Methods".

Similar Messages

Util to auto-generate getters and setters...

Does anyone know of a utility that automatically generate getters and setter classes from a list of variable names???
Might stop me getting RSI!

i gave up on gets/sets about 2weeks after mylecturer
introduced them to us :/Giving up on gets/sets is a mistake... take it from an
EXPERIENCED programmer.you assume 2 much. Uni was a long time ago 4 me.
>
if a var can be modified, then make it public.Though
adding a get/set method does provide encapsulation,it
also requires more typing, bloats code and is alsoa
fraction slower.Adding get/set methods provide more then just the
encapsulation. It provides you easier debug not to
mention easier way to read the code.Encapsulation encapsulates the idea of ezier debuggin :]
gets/sets do not automatically give you code readability, and badly named gets/sets can detract from readability.
>
Sometimes gets/sets serve a purpose, but most ofthe
time theyre just a waste of time.If you think set/get is a waste of time your attitude
will get you into trouble. Consider code with a full
set of public variables in a 'complex' system (well,
lets just say 1500 classes).ok, you've applied my philosophy to your field, now let me apply yours to mine.
I write games for Java enabled mobile phones(J2ME MIDP1.0), on this platform code size (and memory usage) is a SERIOUS concern.
FYI. the Nokia 6310i mobile phone has approx. 140k of heap, and a jar size limited of 30k.
EVERY line of code has to be optimal, in both space and time,
The cost of gets/sets; inheritance; interfaces and all the other wonderful OO design features of java are serious performance inhibitors, and consequently are used only when absolutly necessary.
>
During development a bug is discovered and you realize
that the bug is due to a change in a specific
variable. How do you, quickly and simply, find out
what classes are changing the variable. It could be
anywhere; but by having a get and set method for that
variable you could add a simple code like "new
Exception().printStackTrace();" into the set method
and get a trace when the bug happens. This way you
would know within secondes what object is changing the
variable making the debugging easy. don't write buggy code ;] (that was a j/k btw)
btw, im curious how exactly do u realise that the bug is related to a specific variable? gets/sets help debugging, but they are not the magic bullet of debugging techniques.
>
What if you would like to override a class and to
something before or after a variable is manipulated?
This would be impossible if all variables are public.
You will loose all control of you code.you are still argueing a different point to me - the abstraction of gets/sets do serve a purpose, however they also impose a cost.
>
There are many more reasons for adding the get/set
methods but it will take me all day to write them all
here.
I say: "have all variables protected, GET OFF YOUR
ASS, and add the 200 lines of code" if not for you
then for the one that later will be using or fixing
the code.
Its quite funny watching a newbie programmer start
writing a class, they identify the classes required
attributes, then write 200lines of gets and sets
before they even consider tackling the 'hard'bit[s]
of the class :]What do think of code guidlines that are forced by
most software companies? This is more important then
most NEWBIES think; wait a few years and you will get
the point..
my point here, is that training programmers to follow guidelines before you have taught them the fundamentals of problem solving is futile.
What about comments? Do you find them funny and
useless? hope you don't...for your sake.no, all good code should be commented. But I have to admit, I don't waste time commenting code as i write it, i find it slows down my coding. However I will always go back and comment any code if it is to be used by some1 else.
>
Thinking it funny that people take the time and effort
to make their code more readable, understandable,
accessable, flexible and over all more pretty makes
you the newbie.hmm, unprovoked flaming - now whos the newbie :/
>
It scares me to think that the new breed of
programmers will think it funny to write GOOD code.
bopen, bwise, bbetter...
What frustrates me, is why good design always means slower performance.
It shouldn't, and until Java progresses to the point where the runtime cost of good design is not significant, I will still regard Java as a primitive language.

Hard to Write Good Getters/Setters

I am thinking about writing a complex wrapper to set and get any floats/strings/ints. Cause hate how OBJ-C handles these references/values and having to deal with headers and main files everytime something changes is a real big headache. On top I hate having to decide if your instance variable should be handled like a reference (which can be shared) or a value (which cannot). Most of the time you want value semantics, but implementation efficiency often makes folks choose reference semantics. Your decision effects how you write your getters/setters. Had to figure this out for myself, as I never found any good explanation of it.
Not only do you have to deal with the reference/value semantics issue, but reference counting, threading and exceptions also complicate the issue.
I am should just write a class to handle all this junk and use the #import so I dont have so much incredible redundant code that OBJ-C somehow needs.
my plan:
MyClass.SetInt(intname, x);
SetInt, this will overwrite/declare an existing int variable by that name held in the class.
x = MyClass.GetInt(intname);
GetInt, this retrieves an existing int variable by that name held in the class - or returns nil if undeclared.
but this is all fantasy, still .... I just might try it.

well, i've been asked to do it.
I'll make a short overview : I have a program that creates an XML file with some information about a workflow diagram. The company that requires this software wants to get the execution trace that create the XML file, apart from the XML itself, so they can freely modify it without the need of using my app. My app uses their libraries to write the XML. They could overwrite the XML directly but they already got the libraries and the parser to access each element.
So, they want the execution trace of the code that generates the XML.I think you're going to be far better off inserting logging statements into your code, and building a small self-contained example from the output of those statements.
If you don't want to do that, and are comfortable with JNI, you can write a trace agent using JVMTI
Or, you can use aspect-oriented programming to add cutpoints to their methods, with a tool such as [Aspect-J|http://www.eclipse.org/aspectj/]
There's also a "trace" command in JDB. Haven't used it, so can't tell you whether it will tell you everything you need.
And there used to be a tracing interface that could be accessed from Java code. At least I seem to remember writing a trace utility in Java. Could be that it's available on the JRockit JVM and not Sun.

Bug 9.0.3.3: Error generating View Row interface for inherited VO

When i inherit a view from a different package but use the same view name, the generated view row interface imports the interface rather than using a FQN.
This leads to a name clash error when compiling it.
Testcase:
1. new view package1.MyView. Generate java files for view and view row. Publish client row methods to generate the MyViewRow interface
2. new view pack2.MyView (same name) inherited from package1.MyView. Generate java files. Publish a client row method to generate the row interface.
The wizard performs ok for the MyViewImpl but creates a
package pack2;
import package.MyViewViewRow;
public interface MyViewViewRow extends MyViewViewRow
Integer aTest();
}which leads to a name clash compiler error:
Error(11,8): class MyViewRow clashes with imported interface package1.MyViewRow[pre]
Correct generation would be
[pre]package pack2;
public interface MyViewViewRow extends package.MyViewViewRow
Integer aTest();
}Regards, Markus

is this fixed in 9.0.5.2?

Getters & setters

I am a newbie and trying to learn, I have a type & service table
type
t_id
t_name
blah
blah
service
s_id
t_id (fk)
blah
blah
For a Add Screen, I have Type in a text field & JTable for the service (can be multiple for one type).
Now normally when it is recommended to have getters & setters for everything, how do i have setters for the JTable (ie corresponding to the service table).
I don't want to basically go back and forth the database 50 times , ie do the setter, insert to db, and repeat.
Both are in the same screen as per the UI design ? How does everyone normally does this ?
Thanks much

Now normally when it is recommended to have getters & setters for everything, how do i have setters for the
JTable (ie corresponding to the service table).That is not the normal recommendation:
If and only if there is a compelling reason to expose the value of a field member of a class, you should do so through accessor methods, as this allows additional factilities (input validation, logging, etc) to be added and the implementation details to be changed.
So it's not 'getters and setters for everything', but rather everything that needs to be accessed outside the class should use a getter or setter.
Is there a compelling reason why the table should be accessible outside your GUI? Normally the view (in this case your JTable + the TableModel wrapper) asks a model (your data structure holding type and table, maybe reusing the generic ones supplied by Swing, maybe not) for the data, and doesn't expose the implementation of the view (the JTable) to the outside world.
Imagine that, instead of using JTable, you changed your GUI to use a tree where the services were shown under the types; a local implementation change like that shouldn't effect any other part of your application, so only expose the parts of your view that are unchanged by such implementation details.
Pete

Calling an interface METHOD of another abap web dynpro application

Hi Experts,
Can u plz tell how we can Call an interface METHOD of another abap web dynpro application in main WD Component.
Thanks
Mahesh

Hi ,,
   Example ALV interface method calling   GET_MODEL interface method
   View attribute   declaration   :    M_WD_ALV type      IWCI_SALV_WD_TABLE
     DATA lo_INTERFACECONTROLLER TYPE REF TO IWCI_SALV_WD_TABLE .
      wd_this->M_WD_ALV =   wd_this->wd_cpifc_alv( ).   "ALV is the usage name
     DATA lv_value TYPE ref to cl_salv_wd_config_table.
      lv_value = wd_this->M_WD_ALV->get_model( ).   " interface method calling in ALV component usage.....
Regards,
Devi

How to generate the BPEL interface from XSD?

I am new to the BPEL. How to generate the BPEL interface from XSD because I need the inputed payload to have a complex type instead the simple string?
Thank you

I made the following change to the xsd file, however when the input type change to emailDataType, it is underline by red color. and the bpm process, activity guide, organization become the unknown project object.
<?xml version="1.0" encoding="UTF-8"?>
<schema attributeFormDefault="unqualified"
     elementFormDefault="qualified"
     targetNamespace="http://xmlns.oracle.com/SampleBPM/SampleEmailNotification/SendEmail"
     xmlns="http://www.w3.org/2001/XMLSchema">
     <element name="process">
          <complexType>
               <sequence>
                    <element name="input" type="emailDataType"/>
               </sequence>
          </complexType>
     </element>
     <element name="processResponse">
          <complexType>
               <sequence>
                    <element name="result" type="string"/>
               </sequence>
          </complexType>
     </element>
<complexType name="emailDataType" >
<sequence>
<element name="toEmailAddress" type="string" />
<element name="ccEmailAddress" type="string" />
<element name="emailSubject" type="string" />
<element name="emailContent" type="string" />
</sequence>
</complexType>
</schema>
The XSD file is viewed by the design mode is fine on JDeveloper. Please help!

Access specifiers for interface methods

When we implement the interface ,we have to specify the implementing method access specifier to be "PUBLIC" ,but not "PROTECTED" or "PRIVATE".
Compiler is giving an error -- attempting to assign weaker access privileges ,when we specify protected.
what is the internal reason for this?Why we shouldnt make the access weaker in the implementing class.
Can any one help me on this.Your help is highly appreciated.

When we implement the interface ,we have to specify
the implementing method access specifier to be
"PUBLIC" ,but not "PROTECTED" or "PRIVATE".
Compiler is giving an error -- attempting to assign
weaker access privileges ,when we specify protected.
what is the internal reason for this?There is absolutely no point in having a private interface method. The interface represents a visible abstraction and private methods are never visible so it is a contradiction in terms.
An interface is intended to represent an abstraction that a user (software) uses. Protected via child/parent represents a usage that is restricted to a child from a parent. The child can already see the parent so there is no point in having an abstraction for the child. And it would probably be unwise to limit a child by such an abstraction.
Protected via the package and interfaces is more contentious as to why it is not allowed. There are those that argue that this should be allowed so that a package can use interfaces but restrict them to the package. To me this seems like a minor point given that most interfaces will probably represent an abstraction to other packages and not within a single package. This applies specifically to default access as well.

Interface Method

Hi experts,
I have the following scenario:
Component A opens, in a modal window, the component B.
When I do something in B, it's closed and I return to A.
There, I need read data from B (which is closed at the moment), to do something in A.
Anybody knows how can I do it?
I tried with external context mapping, but It doesn't work...
Could it be done with interface methods?
Thanks in advance!
Lucas

Hi Padmam,
Thank you for your reply too, but I'm having problems with your solution.
I have created an interface Node in Component A, and I have created the mapping in the component usages of the component B.
When I run component A, it gives me an error. I supose that it is rise by this Interface Node.
This error is solved when I check out the property "Input Element (Ext)" of Interface Node, but without this property, I can't do the External Mapping...
Could you correct me if I'm wrong?
Thanks in advance!
Lucas

Question when i am in web dynpro interface method trying to find code

Hello guys,
I am in an event handler and i see this logic wd_this->mo_dodm_srchbidder_c->add_selected_bidder(). When i double click on the add selected bidder it takes me to the method inside interface /sapsrm/IF_CLL_DODM_BIDDER. So when i double click on the method it takes me nowhere.
My question is what do i have to do or where do i go to see the code for add_selected_bidder? thank you.

I think, you have visited to the definition of the interface method and not the implementation of the method.
You have instantiated the wd_this->mo_dodm_srchbidder_c some where, may be in the wd domodifyview. Find that out where the implementation happens.
I believe when you double click the method in editor ask for to go to definition or implementation.

Overriding Interface methods via JNI

Hello,
How we can override Interface methods via JNI?
For example:
At HelloWorldSwing example:
http://download.oracle.com/javase/tutorial/uiswing/examples/start/HelloWorldSwingProject/src/start/HelloWorldSwing.java
I've written anonymous Interface as:
import javax.swing.*;
public class HelloWorldSwing1 {
     * Create the GUI and show it. For thread safety,
     * this method should be invoked from the
     * event-dispatching thread.
    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("HelloWorldSwing");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        //Add the ubiquitous "Hello World" label.
        JLabel label = new JLabel("Hello World");
        frame.getContentPane().add(label);
        //Display the window.
        frame.pack();
        frame.setVisible(true);
    static Runnable runnableObject = new Runnable() {
         public void run() {
              createAndShowGUI();
   public static void main(String[] args) {
         //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        SwingUtilities.invokeLater(runnableObject);
}via JNI functions(http://download.oracle.com/javase/1.4.2/docs/guide/jni/spec/functions.html) we cannot override Runnable Interface's run method? Can we?
Only:
RunnableClass's value isn't null with given example at below. FindClass finds the Runnable Interface.
jclass RunnableClass;
RunnableClass = (*env)->FindClass(env,"java/lang/Runnable");
if( RunnableClass == NULL ) {
    printf("can't find class Runnable\n");
    exit (-1);
}But How can we override Runnable class's run method?
Thanks in Advance

The only way you can override a method in Java is by defining a class that does so, either statically or as an anonymous inner class. You can't do either of those things in JNI. Ergo you cannot do what you are asking about.

Accessing an app.module's client interface methods in other app module

Hi all,
We are developing an application with number of projects (one for each module). We have got a common project with an application module, entity and view objects which are common for the entire application. For reusability, this common project is shared in session scope since most of them are of static nature.
In the shared application module's implementation class, a common method has been included that will be used for data filtering by constructing/appending where clauses in a particular application scoped view object. This method has been exposed as client interface method so that other projects can make use of it. The common project is compiled as an ADF Library jar for accessing it in other projects.
For accessing the exposed client interface method, from the view controller layer, we can include its reference in the page definition file and can execute the method from a managed bean by finding the operation binding from the page definition. But, in case if we wish to access the method in another model project, we could not do so.
Now, my questions are:
1. Is it the correct location(Shared App Mod. Impl) for including the logic to filter the data?
2. Is it possible to access the app. module impl method in another project's impl classes (Let it be entityImpl or viewObjectImpl or viewRowImpl or AppModImpl) ?
3. If it is possible, how it has to be done?
Thanks and regards,

Strange, the same question here {thread:id=2187487}
Timo
Edited by: Timo Hahn on 08.03.2011 12:02
@john You beat me agian

Redefine Interface Method

Hi, I am using a BI Interface "IF_RSCNV_EXIT" and I am adding code to the "Exit" Method.
Do I need to redefine this method? The reason I ask is because the redefine icon is greyed out even though I am in edit mode.
Thanks!

Hello Kenneth
Interface methods are always empty. You can implement them only once within a hierarchy of classes using this interface. Thus, you cannot redefine it.
Regards
Uwe

Getters & Setters in ABAP?

In C# and in Java we have special functions that operate on private class data called getters and setters. These are almost always public and allow the "outside" to interact safely with the private class data. An example would be :
[C#]
public class Vehicle
     private string _make;
     private string _model;
     public string Make { get { return _make; } set { _make = value; } }
     public string Model { get { return _model; } set { _model = value; } }
[Java]
public class Vehicle
     private string _make;
     private string _model;
     public string getMake() { return _make; }
     pubic string setMake(string value) { _make = value; }
     public string getModel() { return _ model; }
     public string setModel(string value) { _model = value; }
This allows controlled access to the private data (_make and _model). For instance, I can put rules into the setters that makes sure the data is valid that's coming in from the outside, or in both the setter and getter that checks the user's permissions to see if they have the right to access this data. It's simply a way to implement "encapsulation".
Does ABAP use getters/setters? If so, are they implemented as in Java or does ABAP have its own implementation?
Thanks!

No reason to be sorry, I understand that you simply didn't know. Here is the run-down. You can award points to any answers that you find helpful. If one answer in particular has solved your problem, you then mark the radiobutton next to that answer which is blue, this gives the person 10 points. If the answer was very helpful, then select the green star, this is 6 points to the user, and if helpful, mark yellow star for two points. If not helpful at all, then don't mark any. You can also, mark the thread as "Solved on your own". This closes the thread by giving it a blue star, but doesn't give any points to anyone(which is what you have done to the other posts )   It is very good that you have closed the threads, because this gives visibility that your problem was solved or your question is answered. But awarding 10 points to the answer which solved your issue, will also close the thread.
You can go back and revisit your other threads and award points according.
Help this helps, and welcome to SDN.
Regards,
Rich Heilman

Interface method in enhancement mode

Hello Experts,
I need to enhance a standard web dynpro component. I have created a new method in the component controller using enhancement implementation. This method has to be called from another component. Therefore I need to make this as an interface method. But in enhancement mode I do not see an option to make this method as an interface mathod. Kindly let me know if this is poosible.
Thanks,
Pooja

Hi Pooja,
Please check this threads.. Hope you understand.
Add an interface Method/Event via enhancement??
How to make Interface node in an Enhancement Implementation
Cheers,
Kris.

Generating Getters/Setters/Interface methods

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