Modelling complex data structures

Hello all,
I'm trying to understand how to model and design a scenario where the data is non-flat (specifically purchase orders). As far as I understand Duet Enterprise does not handle non-flat structures (without custom coding in SharePoint).
What are some options that other people have used to address this?
The two that I thought of are:
1. Model the header and line item data structures separately and then somehow link them in SharePoint
2. Don't use the external list external content type in SharePoint and develop something custom
Does anybody else have any other ideas? Do you have any examples or starting points?
Thank you.

You should avoided passing complex data structure across the JNI boundary. It is slow and it is very difficult to get right. Either make your JNI code so simple that its parameters are primitives or very simple objects, or make your Java code so simple ditto.

Similar Messages

Complex data structure.

Hi,
This is a design issue that I have run into many times and I was wondering how you all solve it. When using complex data structures (such as array of clusters, or clusters containg arrays and/or other clusters), I have found that there are many situations where you need to wire either an "empty" stucture or the type of the structure as an input. For example, when building up the data structure, I often use shift registers, and need an empty data structure to initialize the shift register. Also when bundling a cluster by name you need the type of the cluster. My question is - what do you use in these situations? Of course, I always typedef my complex structures, and I know that there is a default value for them, because other language featu
res depend on there being a default. Is there anyway to get the default value for a typedef? Not seeing one, I have taken to creating a Global or Dummy VI for each typedef that returns a default data structure, which is what I use in all these situations. What other approaches have you seen?

> of the cluster. My question is - what do you use in these situations?
> Of course, I always typedef my complex structures, and I know that
> there is a default value for them, because other language features
> depend on there being a default. Is there anyway to get the default
> value for a typedef? Not seeing one, I have taken to creating a Global
> or Dummy VI for each typedef that returns a default data structure,
> which is what I use in all these situations. What other approaches
> have you seen?
You can right click on a wire or terminal and create a constant for the
type already there. This will sometimes fool you if you are wanting the
input to a shift register since the types flow downstream and you want
upstream. Just click somewhere whe
re the type is known, create the
const and move it where you want it.
The BIG downside to this is that typedef constants tend to be BIG. My
favorite solution is to make a subVI that returns the default for the
typedef. Put it in user.lib and it is readily accessible. You can
think of it as a constructor for your datatype, if you want. In fact
you can make several of these or parameterize it to return different
flavors. Being the size of all other icons, it fits nicely into the
diagram and adapts to typedef changes.
Greg McKaskle

How can I set the Lock Model and data structure ?

Hi ,
I just have two questions about JE:
1) Is there some method for me to set the lock mode level , such as record lock, page lock and database lock in JE?
2) I learned that there are Btree and Hash,etc , data structures , How can I set the data structure when using JE ?
Thanks in advance !
Chris

I think you're confusing our DB (C-based product) with JE. JE does not have lock mode levels, page locks (it does not have pages), or database locks. JE only has the BTREE method, it does not have the HASH method. For JE, please be sure to reference the JE doc page:
http://www.oracle.com/technology/documentation/berkeley-db/je/index.html
--mark

JAXB: Marshalling complex nested data structures?

Hello!
I am dealing with complex data structures:
Map< A, Set< B > >
Set< Map< A, B > >
Map< A, Map< B, Set< C > > >
Map< A, Set< Map< B, C > > >
[and so on](NOTE: In my case it doesn't matters if I use Set<?> or List<?>)
I wanted to write wrappers for JAXB for these data structures, but I have no idea how.
My idea was: write XmlAdapter with generics for Map, Set and List, but it failed:
"[javax.xml.bind.JAXBException: class java.util.LinkedList nor any of its super class is known to this context.]"
because I was using LinkedList<T> inside the XmlAdapter (it seems that from the point of view of JAXB,
LinkedList<T> is same as LinkedList<Object>)
Any ideas?

According to sec 4.4 "By default if xml schema component for which java content interface is to be generated is scoped within a complex type then the java content interface should appear nested within the content interface representing the complex type. ".
So I doubt that worked with beta and you may have to represent this anonymous complex type as a named complex type to avoid the nesting.
Regards,
Bhakti

Urgent! Need help in deciding data structure to use

Hi all,
I need to implement a restaurant system by which a customer can make a reservation.
I was wondering whether vector would be able to be store such an object, The thing is I don't want a complex data structure. just sumthin simple cos i hardly have anytime left to my submission. sighz...
The thing is I need to able to search based on 2 properties of an object. Eg. I need to search for a reservation based on the customer name and the date he reserved a table.
But I am totally clueless how to search thru a vector based on 2 properties of the object... Would really appreciate some help. Like an example how to so so based on my program. Feelin so lost...This is all I have so far:
class AddReservation
     static BufferedReader stdin = new BufferedReader (new InputStreamReader(System.in));
     //Main Method
     public static void main (String[]args)throws IOException
          String custName, comments;
          int covers, date, startTime, endTime;
          int count = 0;
          //User can only add one reservation at a time
          do
               //Create a new reservation
               Reservation oneReservation=new Reservation();
               System.out.println("Please enter customer's name:");
               System.out.flush();
               custName = stdin.readLine();
               oneReservation.setcustName(custName);
               System.out.println("Please enter number of covers:");
               System.out.flush();
               covers = Integer.parseInt(stdin.readLine());
               oneReservation.setCovers(covers);
               System.out.println("Please enter date:");
               System.out.flush();
               date = Integer.parseInt(stdin.readLine());
               oneReservation.setDate(date);
               System.out.println("Please enter start time:");
               System.out.flush();
               startTime = Integer.parseInt(stdin.readLine());
               oneReservation.setstartTime(startTime);
               System.out.println("Please enter end time:");
               System.out.flush();
               endTime = Integer.parseInt(stdin.readLine());
               oneReservation.setendTime(endTime);
               System.out.println("Please enter comments, if any:");
               System.out.flush();
               comments = stdin.readLine();
               oneReservation.setComments(comments);
               count++;
          while (count<1);
          class Reservation
          private Reservation oneReservation;
          private String custName, comments;
          private int covers, startTime, endTime, date;
          //Default constructor
          public Reservation()
          public Reservation(String custName, int covers, int date, int startTime, int endTime, String comments)
               this.custName=custName;
               this.covers=covers;
               this.date=date;
               this.startTime=startTime;
               this.endTime=endTime;
               this.comments=comments;
          //Setter methods
          public void setcustName(String custName)
               this.custName=custName;
          public void setCovers(int covers)
               this.covers=covers;;
          public void setDate(int date)
               this.date=date;
          public void setstartTime(int startTime)
               this.startTime=startTime;
          public void setendTime(int endTime)
               this.endTime=endTime;
          public void setComments(String comments)
               this.comments=comments;
          //Getter methods
          public String getcustName()
               return custName;
          public int getCovers()
               return covers;
          public int getDate()
               return date;
          public int getstartTime()
               return startTime;
          public int getendTime()
               return endTime;
          public String getComments()
               return comments;
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class searchBooking
     static BufferedReader stdin = new BufferedReader (new InputStreamReader(System.in));
     public static void main (String[]args)throws IOException
          int choice, date, startTime;
          String custName;
               //Search Menu
               System.out.println("Search By: ");
               System.out.println("1. Date");
               System.out.println("2. Name of Customer");
               System.out.println("3. Date & Name of Customer");
               System.out.println("4. Date & Start time of reservation");
               System.out.println("5. Date, Name of customer & Start time of reservation");
               System.out.println("Please make a selection: ");
               //User keys in choice
               System.out.flush();
               choice = Integer.parseInt(stdin.readLine());
               if (choice==1)
                    System.out.println("Please key in Date (DDMMYY):");
                    System.out.flush();
                    date = Integer.parseInt(stdin.readLine());
               else if (choice==2)
                         System.out.println("Please key in Name of Customer:");
                         System.out.flush();
                         custName = stdin.readLine();
               else if (choice==3)
                         System.out.println("Please key in Date (DDMMYY):");
                         System.out.flush();
                         date = Integer.parseInt(stdin.readLine());
                         System.out.println("Please key in Name of Customer:");
                         System.out.flush();
                         custName = stdin.readLine();
               else if (choice==4)
                         System.out.println("Please key in Date (DDMMYY):");
                         System.out.flush();
                         date = Integer.parseInt(stdin.readLine());
                         System.out.println("Please key in Start time:");
                         System.out.flush();
                         startTime = Integer.parseInt(stdin.readLine());
               else if (choice==5)
                         System.out.println("Please key in Date (DDMMYY):");
                         System.out.flush();
                         date = Integer.parseInt(stdin.readLine());
                         System.out.println("Please key in Name of Customer:");
                         System.out.flush();
                         custName = stdin.readLine();
                         System.out.println("Please key in Start time:");
                         System.out.flush();
                         startTime = Integer.parseInt(stdin.readLine());
                    }

Please stop calling your questions urgent. Everybody's question is urgent to them. Nobody's are urgent to the people who are going to answer them. Calling your questions urgent suggests that you think they are more important than others' (They're not.) and will only serve to irritate those who would help you. It won't get your questions answered any sooner.

CRMXIF_ORDER_SAVE Data structure information

The BAPI CRMXIF_ORDER_SAVE has one input Parameter of type CRMXIF_BUSTRANS. This paramter is quite a complex data structure made upof many data structures; which themselves are complex and contain more data structures.
I am a first time user of this BAPI and I calling this BAPI (exposed as an RFC web service) via .net 2.0. I am not able to find an documentation for this BAPI and it data structures. I am looking for an explanation of the data structures and what and how they relate to/in SAP.
Where can I find such information.
Any help is appreciated.
-Jawahar

hi Jawahar,
how are you doing ?
here is a discussion on sdn on the same bapi
CRMXIF_ORDER_SAVE to create orders
i am not aware of the internal data structure, but am interested to know the results you get, please update the thread when possible
with respect,
amit

Xcode, how do you take an app from an idea to a data model, data structure, or class structure?

Hey everyone!
I'm a beginner xcoder and computer engineering sophomore and have literally spent every hour of the past few weeks reading as much as I possibly can about becoming a developer.
I've found plenty of documentation, and guides on how to do very specific things in xcode and objective-C but am still looking for more information on one topic; how do you decide which data models/structures/controllers etc to use?
I mean, you personally. I've been looking for a resource on this and have not been able to find one. I just finished Apple's iOS Developers Guide and they mention "choosing a data model" but do not describe them in much detail.
The following is what is provided in the guide:
● Choose a basic approach for your data model:
● Existing data model code—If you already have data model code written in a C-based language, you
can integrate that code directly into your iOS apps. Because iOS apps are written in Objective-C, they
work just fine with code written in other C-based languages. Of course, there is also benefit to writing
an Objective-C wrapper for any non Objective-C code.
● Custom objects data model—A custom object typically combines some simple data (strings, numbers,
dates, URLs, and so on) with the business logic needed to manage that data and ensure its consistency.
Custom objects can store a combination of scalar values and pointers to other objects. For example,
the Foundation framework defines classes for many simple data types and for storing collections of
other objects. These classes make it much easier to define your own custom objects.
● Structured data model—If your data is highly structured—that is, it lends itself to storage in a
database—use Core Data (or SQLite) to store the data. Core Data provides a simple object-oriented
model for managing your structured data. It also provides built-in support for some advanced features
like undo and iCloud. (SQLite files cannot be used in conjunction with iCloud.)
● Decide whether you need support for documents:
The job of a document is to manage your app’s in-memory data model objects and coordinate the storage
of that data in a corresponding file (or set of files) on disk. Documents normally connote files that the user
created but apps can use documents to manage non user facing files too. One big advantage of using
documents is that the UIDocument class makes interacting with iCloud and the local file system much
simpler. For apps that use Core Data to store their content, the UIManagedDocument class provides similar
support.
I suppose my question boils down to, how do you decide which structures to use? If you can provide an example of an app idea and how its implemented that would be very helpful and much appreciated!
For example, to implement the idea of an app which allows users to progress through levels of knowledge of a certain subject and rewarding them with badges and such (this is not an actual app just a whim) how would one model that?
Thanks in advance for all your help!!!

SgtChevelle wrote:
how do you decide which structures to use?
Trial and error.
I wish I had a better answer for you, but that pretty much encapsulates it. There is some, but not much, good wisdom out there, but it takes a significant amount of experience to be able to recognize it. The software development community if currently afflicted with a case of copy-and-paste-itis. And the prognosis is poor.
The solution is to be brutal to yourself and others. Focus on what you need and ignore everything else. Remember that other people have their own needs and methods and they might not be applicable to you. Apple, for example, can hire thousands of programmers, set them to coding for six months, pick the best results, and have the end-users spend their own time and monety to test it. If you don't have Apple's resources and power, think twice about adopting Apple's approach. And I am talking from a macro to a micro perspective. Apple's sample and boilerplate code is just junk. Don't assume you can't do better. You can.
Unfortunately, all this takes time and practice. You can read popular books, but never assume that anyone knows more than you do. Maybe they do and maybe they don't. It takes time to figure that out. Just do your best, ignore the naysayers, and doubt other people even more than you doubt yourself.

How to create a reference instead of complex type for record in data structure type in BizTalk schema

I have created the record in BizTalk schema but i will give to Data Structure Type as reference For eg:Recordname(Reference) instead of recordname(Complex type).
Please help me to sort this out

You can add a reference to an existing type only.
You might have to manually edit the XSD file to change the xmlns definiton to xmlns:tns and then after you define the record type, set the datatype to tns:.... this creates the XML Type. Then later in your schema you can instantiate this with a name and
then set type to tns:.... (Reference)
Regards.

How to pass complex data type structure to WebService under mx:request?

From my Flex client, I need to pass data to a web service whose operation expects a complex data type with multiple layers of nesting structure. How can I populate the <mx:request> for the <mx:WebServices>? Any examples?
A couple of approaches come to my mind:
(1) construct ActionScript object to mimic the datatype expected by web service, and pass an instance of the AS object to mx:request; or
(2) construct an entire SOAP request body in XML and pass it into mx:request.
Does any of these (or both) work? If both work, which is the better way?
Thanks in advance for your input!
-William

Thanks a lot for the rapid response, Marcel.
For further details on the maping between WS complexType structure and AS object, is there any specific requirement? such as naming, binding, structure of nesting, etc.
William

Using Complex Data Types in Import JavaBean Model

Hi,
I have searched and read forums and weblogs related to import javabean model.
But I am not clear about how to use complex data types like ArrayList, Collection etc in my java bean.
If I use these complex datatypes in my bean, when creating model in WDF it displays the Complex data elements in Model Relation. I dont know how to use this model relation in my WD project.
Anyone please explain the<b> step by step solution</b> about using complex data type(used in Bean) in WD Project.
Thanks,
Krishna Kumar

Hi Krishna,
Valery`s blog contains sample code ( http://www.jroller.com/resources/s/silaev/Employees.zip )
Another blogs from this area:
/people/anilkumar.vippagunta2/blog/2005/09/02/java-bean-model-importer-in-web-dynpro
/people/valery.silaev/blog/2005/08/30/javabean-model-import-when-it-really-works
And forum topics:
Import JavaBean Model
Problem Importing JavaBean Model in NetWeaver Developer Studio
Issue on "Import JavaBean Model"
import JavaBean Model: no executable Methods?
JavaBeans Model Import
POLL : JavaBean Model Importer
JavaBean-Model
Invalid Class - Javabean not available for import
WebDynpro Using JavaBean Model ->Please Help
Best regards, Maksim Rashchynski.

Trees Data Structures in Java

Hi all !
Currently I�m developing a Java software that requires a Tree data structure. Searching through Java API I�ve found classes like TreeMap and TreeSet, but although these classes seens to use tree structure behind what they really provide are linear data structure, not a tree data structure. My question is if there is a public and free Java tree data structure that permits to do activities such as:
- Search for a particular node (efficiently)
- Insert children to any node
- Maintain one Object in each node
Simple like this ! It must have something like this in Java, but I just can�t find it and I�m just too lazy to implement it :) ! Anyone can help me ?
Thanks in advance !

Mel,
I�ve seen javax.swing.tree.TreeModel and its seens more like an implementation of Control in swing MVC (Model Vision Control) swing paradigm for JTree. It has listeners generated for manipulation events for example. It uses javax.swing.tree.DefaultMutableTreeNode for its nodes, and maybe I could use this class for the nodes of my tree since it has many useful operations. However still I miss a node searching operation that this class doesn�t have.
Yes my problem is a simple Tree, but it is simple now and it might become much more complex, demanding more operations on the tree and specially efficient searching algorithms. Thats why I�m looking for a complete solution and I prefer something that is already done and well tested :) !
Thanks for your tip !

Can I automate the creation of a cluster in LabView using the data structure created in an autogenerated .CSV, C header, or XML file?

Can I automate the creation of a cluster in LabView using the data structure created in an auto generated .CSV, C header, or XML file? I'm trying to take the data structure defined in one or more of those files listed and have LabView automatically create a cluster with identical structure and data types. (Ideally, I would like to do this with a C header file only.) Basically, I'm trying to avoid having to create the cluster by hand, as the number of cluster elements could be very large. I've looked into EasyXML and contacted the rep for the add-on. Unfortunately, this capability has not been created yet. Has anyone done something like this before? Thanks in advance for the help.
Message Edited by PhilipJoeP on 04-29-2009 04:54 PM
Solved!
Go to Solution.

smercurio_fc wrote:
Is this something you're trying to do at runtime? Clusters are fixed data structures so you can't change them programmatically. Or, are you just trying to create some typedef cluster controls so that you can use them for coding? What would your clusters basically look like? Perhaps another way of holding the information like an array of variants?
You can try LabVIEW scripting, though be aware that this is not supported by NI.
Wow! Thanks for the quick response! We would use this cluster as a fixed data structure. No need to change the structure during runtime. The cluster would be a cluster of clusters with multiple levels. There would be not pattern as to how deep these levels would go, or how many elements would be in each. Here is the application. I would like to be able to autocode a Simulink model file into a DLL. The model DLL would accept a Simulink bus object of a certain data structure (bus of buses), pick out which elements of the bus is needed for the model calculation, and then pass the bus object. I then will take the DLL file and use the DLL VI block to pass a cluster into the DLL block (with identical structure as the bus in Simulink). To save time, I would like to auto generate the C header file using Simulink to define the bus structure and then have LabView read that header file and create the cluster automatically. Right now I can do everything but the auto creation of the cluster. I can manually build the cluster to match the Simulink model bus structure and it runs fine. But this is only for an example model with a small structure. Need to make the cluster creation automated so it can handle large structures with minimal brute force. Thanks!

What is the best data structure for loading an enterprise Power BI site?

Hi folks, I'd sure appreciate some help here!
I'm a kinda old-fashioned gal and a bit of a traditionalist, building enterprise data warehouses out of Analysis Service hypercubes with a whole raft of MDX for analytics. Those puppies would sit up and beg when you asked them to deliver up goodies
to SSRS or PowerView.
But Power BI is a whole new game for me.
Should I be exposing each dimension and fact table in the relational data warehouse as a single Odata feed?
Should I be running Data Management Gateway and exposing each table in my RDW individually?
Should I be flattening my stars and snowflakes and creating a very wide First Normal Form dataset with everything relating to each fact?
I guess my real question, folks, is what's the optimum way of exposing data to the Power BI cloud?
And my subsidiary question is this: am I right in saying that all the data management, validation, cleansing, and regular ETTL processes are still required
before the data is suitable to expose to Power BI?
Or, to put it another way, is it not the case that you need to have a clean and properly structured data warehouse
before the data is ready to be massaged and presented by Power BI?
I'd sure value your thoughts and opinions,
Cheers, Donna
Donna Kelly

Dear All,
My original question was:
what's the optimum way of exposing data to the Power BI cloud?
Having spent the last month faffing about with Power BI – and reading about many people’s experiences using it – I think I can offer a few preliminary conclusions.
Before I do that, though, let me summarise a few points:
Melissa said “My initial thoughts: I would expose each dim & fact as a separate OData feed” and went on to say “one of the hardest things . . . is
the data modeling piece . . . I think we should try to expose the data in a way that'll help usability . . . which wouldn't be a wide, flat table ”.
Greg said “data modeling is not a good thing to expose end users to . . . we've had better luck with is building out the data model, and teaching the users
how to combine pre-built elements”
I had commented “. . . end users and data modelling don't mix . . . self-service so
far has been mostly a bust”.
Here at Redwing, we give out a short White Paper on Business Intelligence Reporting. It goes to clients and anyone else who wants one. The heart
of the Paper is the Reporting Pyramid, which states: Business intelligence is all about the creation and delivery of actionable intelligence to the right audience at the right time
For most of the audience, that means Corporate BI: pre-built reports delivered on a schedule.
For most of the remaining audience, that means parameterised, drillable, and sliceable reporting available via the web, running the gamut from the dashboard to the details, available on
demand.
For the relatively few business analysts, that means the ability for business users to create their own semi-customised visual reports when required, to serve
their audiences.
For the very few high-power users, that means the ability to interrogate the data warehouse directly, extract the required data, and construct data mining models, spreadsheets and other
intricate analyses as needed.
On the subject of self-service, the Redwing view says: Although many vendors want tot sell self-service reporting tools to the enterprise, the facts of the matter are these:
v
80%+ of all enterprise reporting requirement is satisfied by corporate BI . . . if it’s done right.
v Very few staff members have the time, skills, or inclination to learn and employ self-service business intelligence in the course of their activities.
I cannot just expose raw data and tell everyone to get on with it. That way lies madness!
I think that clean and well-structured data is a prerequisite for delivering business intelligence.
Assuming that data is properly integrated, historically accurate and non-volatile as well, then I've just described
a data warehouse, which is the physical expression of the dimensional model.
Therefore, exposing the presentation layer of the data warehouse is – in my opinion – the appropriate interface for self-service business intelligence.
Of course, we can choose to expose perspectives as well, which is functionally identical to building and exposing subject data marts.
That way, all calculations, KPIs, definitions, and even field names, and all consistent because they all come from the single source of the truth, and not from spreadmart hell.
So my conclusion is that exposing the presentation layer of the properly modelled data warehouse is – in general - the way to expose data for self-service.
That’s fine for the general case, but what about Power BI? Well, it’s important to distinguish between new capabilities in Excel, and the ones in Office 365.
I think that to all intents and purposes, we’re talking about exposing data through the Data Management Gateway and reading it via Power Query.
The question boils down to what data structures should go down that pipe.
According to
Create a Data Source and Enable OData Feed in Power BI Admin Center, the possibilities are tables and views. I guess I could have repeating data in there, so it could be a flattened structure of the kind Melissa doesn’t like (and neither do I).
I could expose all the dims and all the facts . . . but that would mean essentially re-building the DW in the PowerPivot DM, and that would be just plain stoopid. I mean, not a toy system, but a real one with scores of facts and maybe hundreds of dimensions?
Fact is, I cannot for the life of me see what advantages DMG/PQ
has over just telling corporate users to go directly to the Cube Perspective they want, that has already all the right calcs, KPIs, security, analytics, field names . . . and most importantly, is already modelled correctly!
If I’m a real Power User, then I can use PQ on my desktop to pull mashup data from the world, along with all my on-prem data through my exposed Cube presentation layer, and PowerPivot the
heck out of that to produce all the reporting I’d ever want. It'd be a zillion times faster reading the data directly from the Cube instead of via the DMG, as well (I think Power BI performance sucks, actually).
Of course, your enterprise might not
have a DW, just a heterogeneous mass of dirty unstructured data. If that’s the case,
choosing Power BI data structures is the least of your problems! :-)
Cheers, Donna
Donna Kelly

Call a method with complex data type from a DLL file

Hi,
I have a win32 API with a dll file, and I am trying to call some methods from it in the labview. To do this, I used the import library wizard, and everything is working as expected. The only problem which I have is with a method with complex data type as return type (a vector). According to this link, import library wizard can not import methods with complex data type.
The name of this method is this: const std::vector< BlackfinInterfaces::Count > Counts ()
where Count is a structure defined as below:
struct Count
Count() : countTime(0) {}
std::vector<unsigned long> countLines;
time_t countTime;
It seems that I should manually use the Call Library Function Node. How can I configure parameters for the above method?

You cannot configure Call Library Function Node to call this function. LabVIEW has no way to pass a C++ class such as vector to a DLL.

What's the easiest way to move app data and data structures to a server?

Hi guys,
I've been developing my app locally with Apex 4.2 and Oracle 11g XE on Windows 7. It's getting close to the time to move the app to an Oracle Apex server. I imagine Export/Import is the way to move the app. But what about the app tables and data (those tables/data like "customer" and "account" created specifically for the app)? I've been using a data modeling tool, so I can run a DDL script to create the data structures on the server. What is the easiest way to move the app data to the server? Is there a way to move both structures and data in one process?
Thanks,
Kim

There's probably another way to get here, but, in SQL Developer, on the tree navigation, expand the objects down to your table, right click, then click EXPORT.. there you will see all the options. This is a tedious process and it sucks IMO, but yeah, it works. It sucks mostly because 1) it's one table at a time, 2) if your data model is robust and has constraints, and sequences and triggers, then you'll have to disable them all for the insert, and hope that you can re-enable constraints, etc without a glitch (good luck, unless you have only a handful of tables)
I prefer using the oracle command line EXP to export an entire schema, then on the target server I use IMP to import the schema. That way, it's near exact. This makes life messy if you develop more than one application in a single schema, and I've felt that pain -- however -- it's a whole lot easier to drop tables and other objects than it is to create them! (thus, even if the process of EXP/IMP moved more than you wanted to "move".. just blow away what you don't want on the target after the fact..)
You could use oracle's datapump method too.
Alternatively, what can be done, IF you have access to both servers from your SQL developer instance (or if you can tnsping them both already from the command line, you can use SQL*PLUS), is run a script that will identify your apex apps' objects (usually by prefix to object names, like EBA_PROJ_%, etc) and do all the manual work for you. I've created a script that does exactly this so that I can move data from dev to prod servers over a dblink. It's tricky because of the order that must be executed to disable constraints and then re-enable them, and of course, trickier if you don't consistently prefix ALL of your "application objects"... (tables, views, triggers, sequences, functions, procs, indexes, etc)

Modelling complex data structures

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