Distribution of Perspective for Java

Can I include JavaBean "Perspective for Java" from JDeveloper 3.1.1.2 in my application and distribute it or I must pay some licence fee?
Thank you
Matic

Hi,
If you develop your application using an Oracle product, then you can redistribute the Perspectives bean with your application without an additional license fee.
See the Release Notes for information on those libraries that do require a runtime license.
null

Similar Messages

Perspective for Java technologies : implementing interface on late.

In Java, to implements the adapter pattern's; we have to create a new class that have a link with the adaptee class and implements the adapter interface.
class MyAdapter implements IAdapter
public MyAdapter( Adaptee a );
}or, if we need protected methods :
class MyAdapter extends implements IAdapter
public MyAdapter( Adaptee a );
}then, to call the method void foo( IAdapter i ); ;
we have to do xxx.foo( new MyAdapter( adaptee ) );it could be simpler if java allowed to implement interfaces after defining the java class.
public class Adaptee
}and then, in another file, something like,
implementation of IAdapter for class Adaptee
}would be equivalent to
public class Adaptee implements IAdapter
}The advantage of the first method is that you can adapt very easy external classes from external jar file.
thank's for coments.

An interface is a contract which tells the compiler
that a class that implements it implements a set of
method signature which perform certain actions.That's right, but my idea is not to change the interface, but to change the external class, making it implements the existing interface.
If you overlay an interface on someone else's class,
the signature match (if there is one) could happen by
coincidence. There's no guarantee that a method with
a signature that matches one in your interface
actually has the same function.I didn't say that an external class should be viewed as an interface without a specific implementation of this interface for the external class. But, instead of making a new class extending the first and implementing the interface, just define a specific implementation of the interface for this class, as if it was make at class declaration.

Perspective for Netweaver/Java Programmers

Hi everybody,
i want to change from ABAP programming to a new department which is implementing in Java on Netweaver.
In fact Java and similar languages were what i have done before i started with ABAP 1 year ago.
Right now i have 2 opportunities:
ABAB
or
Netweaver/JAVA
Does anybody now what the market situation is for that skills?
How are the perspectives for that type of work (can i easyly find jobs)?
I need help urgently i this question!
Regards

My Dear friend i have already put a decent title but
none of them replied. See below
As far as challenge goes for a
programmer everything is challenge and people who
cannot solve them reply in the manner u did.No..people who won't help people who won't help themselves reply in the manner I did.
Anyways i apologise for giving that title u can also
refer to my earlier posting named Communication API.not descriptive enough
Anyways thanx for the suggestion. I cannot post my
code i am sorry. See below
I have clearly mentioned the problemas clear as mud. It is clear to you..don't assume it is clear to all else.
if u still want further explaination of my problem ur
welcome.........No..I really don't give a shit, as you've proven yourself not deserving of my effort past this post..maybe you'll learn something from it.
Umm... your problem is probably simple... your code is not valuable to us, except to help you.
Those who do not post code are people who lie about having already tried...or about having achieved successes...or who realize that their code is sh** and are embarassed by it...rephrased:people who refuse to post their code when asked...
I've been on these forums long enough... If you continue to use vague descriptions, codeless, without error messages or anything specific, you will not get answers...
Communication API isn't really a decent title either...perhaps
"Problem writing/reading simultatenously to/from COM port"

Problem in connecting to database from webdynpro for java

Hi
I have a problem in connecting to database from webdynpro application
I am using oracle 10 express edition as database and was able to connect to database from a java application.But was unable to connect from a webdynpro for java.
<b>I guess webdynpro for java uses open sql instead of vendor sql(I looked in the visual admin ,DB is using open sql) so unable to connect to database.Am i right.?</b>
Do i need to make any settings in the visual admin to make it work?
How to solve this problem.Please give me pointers
Thanks
Bala

Hi,
For connecting to Oracle, either you can use the normal JDBC connectivty code directly which is given below :
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@Oracle_server_ip:Oracle port:SID of the Database","user_name","password");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("your query");
In case you want to fetch data through ejbs, these are the steps to be followed :
1) Open the J2EE perspective
2) Create an EJB Module project
3) Right click on ejbModule, create a new EJB (select your EJB type)
4) While creating the ejb itself, you can add business methods by clicking Next in the UI. Another option is after creating the ejb, write the method in the bean, then select the method from ejb-jar.xml -> <bean name> ->method. Right click and select propogate to local & remote.
5) Double click on ejb-j2ee-engine.xml. select your bean and specify a Jndi name for eg: MyJndi.
6) Right click on the EJB project and add classes12.zip file (provided by Oracle) to its build path. (under libraries tab). Also check the same file under Order & Export.
7) Create an Enterprise Application project.
8) Right click on the EJB module project and select add to EAR project, then select the created EAR project.
9) Right click on the EJB project, select Build EJB Archive
10) Right click on the EAR project, select Build Application Archive
11) Open the WebDynpro perspective, open a new project, right click on the project ->properties. Do the following configurations :-
Java Build path - select the EJB project from projects , check the selected project under Order & Export
Project references select the EAR project
WebDynpro references select sharing references tab, click add & make an entry as : <vendor>/<EAR project name without .ear extension>
You can find the vendor name under application-j2ee-engine.xml file of the EAR project. By default it is sap.com. So if my EAR projects name is ABC, my entry would look like sap.com/ABC
12) Now the configurations are over and the EJB can be invoked by writing the client code inside the webdynpro component. Like:
InitialContext context = new InitialContext();
Object obj = context.lookup("MyJndi");
MyEJBHome home = MyEJBHome)PortableRemoteObject.narrow(obj,MyEJBHome.class);
MyEJB mybean = home.create();
int a = 0;
a= mybean.add(10,15);
wdContext.currentContextElement().setSum(a);
where MyEJB is my EJB name and MyJndi is my JNDI name
To connect to Oracle , you can write the usual Java code (given below) as a business methos of the ejb (similar to add() method in the example). And access it like mybean.<businessMethodName>().
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@Oracle_server_ip:Oracle port:SID of the Database","user_name","password");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("your query");
Extracted from Re: Webdynpro and Oracle
http://help.sap.com/saphelp_webas630/helpdata/en/b0/6e62f30cbe9e44977c78dbdc7a6b27/frameset.htm
May be of use to understand the VA Conf /people/varadharajan.krishnasamy/blog/2007/02/27/configuring-jdbc-connector-service-to-perform-database-lookups
Regards
Ayyapparaj

How to use BAPI in webdynpro for java application

Hi all,
Please help in getting started with calling a BAPI in a webdynpro for java application. I have got only the content needed to call a BAPI in a webdynpro for abap application but not in java. Kindly provide me some documents if possible.
Thanks in advance

Hi ,
U have Created One Bapi u want to work with web Dyn pro for java Application Right .
U need the Following
1) NWDS (Netweaver Devloper Studio )
2) jdk1.4 or Above installed in your system .
After Installation of NWDS .
1) Just Take J2EE Enginee Details
a) Go to Window -> preferences -> J2ee Enginee - > give ur port number , Host name Details . and click finsh .
Go To Web Dyn Pro Perspective Click onj2EE engine .
Click On Refresh U will see Green Colour button .
Now ur Ready to import Ur BAPI .
1) Go to File -> New -> Project - > Web Dyn pro Project -.
Give Name , pkg Name Click On Finish .
2) Expand ur project hirarchy -> go TO Application -> Right Click -> Create Application - > Give Application name and Pkg name -> Click on Finish .
3) Now ur View And Controller Are Created by Default .
4) Go to Model-> Right Click on it-> Create Model -> Give Model Name & Pkg name Should diff from Application pkg the Click On Next
a) Here u have to Two JCo Destination Name Like Model Data And Meta data & R/3 System Details like System Number , Host name Etc -> then Click on next .
b) Here u will text filed where u want to search for ur Required BAPI . Type ur BAPI Name Click on Search . Ur bapi will be displyed In Down . click on Next .
c) Now Ur model is Importedint into NWDS .Map ur model data To Controller and Controller Element to View Elements .
After ur Model .
Go to -> Project Name -> Right Click -> go to -> Deploy New Archive .
after wards u have to go Apllication -> Right click -> deploy and Run .
ur output will be displyed thru Browser .
Thats it
Regards ,
venkat

Team Calendar UI element in WebDynpro for java

Hello Experts.
We need to create an application like TeamCalendar.While searching sdn i found this pdf
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e012e6a2-8d21-2a10-1bb8-d9b606f3474c
which says there is some ui called TeamCalendar or something like that in WebDynpro for Java but I'm unable to find it..Can anyone tell me where to find it?

You can get the developer studio for the SAP NetWeaver Composition Environment (CE) 7.1.
Simply download it from the Downloads section - the first link is for CE :). https://www.sdn.sap.com/irj/sdn/nw-ce-downloads
In it you will find the development infrastructure and the DTR perspectives. for working with them see the CE documentation -> http://help.sap.com/saphelp_nwce10/helpdata/en/45/3c66688c604c2ce10000000a1553f6/frameset.htm
Points are welcome if it is useful
Koti Reddy

Link between SAPConnect and SO23 Distribution List Settings for CCMS Alerts

Hi All,
We have CCMS email Alerts configured for around 90 systems adminsitered through a CUA SOlMan 4.0 System.
We are not receiving these emails after the SolMan 4.0 System was Patched for Java.
All the settings seem to be fine. We are not able to figure out how the Distribution List for external email Ids(RZ20, RZ21) is connected with SAPConnect SMTP settings.
Please advise.
Immediate help is greatly appreciated
Kalyan Jonna
[email protected]

- ability to choose deletion of an email on handset only
- desktop software working with all older BB's allowing drag and drop type of transferring data, contacts etc. (BB link doesn't recognize my old Storm)
- auto power on/off
- contacts syncing with yahoo & Outlook (almost two weeks trying to work around it and no luck)

The best H.W and O.S for Java

Hi
I am developing a network monitoring program with too many threads and hundreds of GUI components, I am using my personal PC (windows vista, dualcore cpu 2.2, , 2 GHz RAM, netbeans 6.8)
I know I am using a humble PC but I want to get more advanced/professional H.W and O.S , so my question now is :
what to you use for java (H.W and O.S) as professional and semi-professional solutions? (and if possible the range of prices)
and any suggestions for me to increase the performance of my PC with Java (i think Linux will speed it up but I am not sure which distribution)
Note:
Best Regards.
Anderson.

If you're going to pick Linux, and want to run Sun's/Oracle's Java... Then I'd suggest a distro that is officially supported per:
http://java.sun.com/javase/6/webnotes/install/system-configurations.html
Otherwise pick Solaris (X86/Sparc).

MSS - where find code for java iviews and how to copy and extract??????

Hi All,
Not sure if this is the correct forum, so if i'm in the wrong place apologies and if possible could you point me in the right direction. If I am in the right place, here it goes......
we're using R/3 4.7, MSS 6.1.20. We're just beginning to implement MSS. I'm wondering if anyone could give me a couple of examples of which MSS options are based on java iviews, where is the code for these java ivews stored on the system and do i have to do anything special to extract this code.
the reason i want the code is that i want to copy it and see how difficult it is to make changes to the code in netweaver developer studio.
Also, as i'm new to all this, if anyone knows of a good source of info for java iview creation/manipulation, please let me know.
Kind regards,
Liz.

Hi,
This is how we access java code for ESS applications. I hope it is the same for MSS as well.
Open your NWDS -> Window -> Preferences -> Java Development Infrastructure -> Development Configurations.
Provide the Landscape directory server in URL field. something like http://<server name>:<port number>. Ping and confirm the connections. Save the settings.
Now select Window -> Open Perspective -> Development Configurations.
Right click on the Offline and select Import configurations. Select remote option and import the respective items from the server. Create a project for the required inactive DC and you will be able to edit the code in webdynpro perspective.
Hope this helps.
Thanks,
Preetham

Step by step installation for java card kit 2.2.2

can anyone help me with a complete step by step installation information for java card kit 2.2.2, i already tried to follow the instruction given in the software i download n still stuck in setting the java path. any recommendation
thanks for the help

The javacard API is for developing applets on card. Java 6 is for developing clients off-card.
yes u can use any java IDEs like netbeans or jcreator. But you will have to select the libraries within the downloaded java card kit folder for ur IDE in order to compile successfully.
try reading up the documentation and run the samples in the java card kit. thats a good place to start.

KM Scheduler Task vs SAP Netweaver Scheduler for java

Hi Experts,
I need to know the key differences between KM Scheduler task implementation and SAP Netweaver Scheduler for java task implementation. Which one is better and why?
Thanks for looking into this and for you patience in answering the question.
Regards,
Kiran K Grandhi.

Hi,
Please look at this help
[SAP NetWeaver Scheduler for Java|http://help.sap.com/saphelp_nwce10/helpdata/en/44/03d66015ee10b3e10000000a11466f/content.htm] and [KM Scheduler task|http://help.sap.com/saphelp_nw04s/helpdata/en/3a/bc37b5789dee4eaa8005bff84f14cf/content.htm]
Best Regards
Vijay K

XModem via TCP for Java

I am sure that many of you experienced developers have read requests in the past concerning implmentation of Ward Christenen's XModem protocol over a TCP socket. If not, well... you are about to...
This is a major hack... but it is starting to come together... thanks to Fred Potter for his source code to start this project...
Objective:
Basically, I want to create a console application which accepts an incoming connection and starts the receive mode for a XModem file transfer. I am using CGTerm (for Commodore retrocomputing) but can test with HyperTerminal as well...
The user who connects to the server selects SEND and the FILE to send for a XModem file transfer... and the transfer begins...
The incoming blocks of 128 bytes are written to a file
After the transfer is over the server disconnects the client terminal.
Here is what I have so far:
import java.net.*;
import java.lang.*;
import java.io.*;
// X-Modem Server implementation via TCP/IP socket
public class XServer {
public static FileWriter fw;
public static void main(String[] args) throws IOException {
// define the file
try {
fw = new FileWriter("filename.txt");
} catch (Exception e) {
System.out.println(e);
System.exit(0);
int port = Integer.parseInt(args[0]);
ServerSocket server = new ServerSocket(port);
System.out.println("X-Server v1.0 - waiting for connection");
Socket client = server.accept();
// Handle a connection and exit.
try {
InputStream inputStream = client.getInputStream();
OutputStream outputStream = client.getOutputStream();
new PrintStream(outputStream).println("Go to send file mode!"); // sent to client
System.out.println("Ready to receive file via X-Modem...");
* BEGIN TRANSFER HERE!
// set the debug flag
XModem.debug = true;
* Here we are instantiating a new InputStream that represents the remote
* file that we are receiving. In this single line we are attempting to
* start the flow.
* Behind The Scenes: We're sending a NAK across the serial line repeatedly
* until we finaly start seeing the data flow. If we don't see the data
* flow, then we throw an exception.
System.out.println("Sending NAK to start receive mode...");
InputStream incomingFile;
try {
incomingFile = new XModemRXStream(inputStream, outputStream);
} catch (IOException e) {
System.out.println("ERROR! Unable to start file transfer!");
e.printStackTrace();
return;
System.out.println("Starting file transfer...");
* Here we are reading from the incoming file, byte by byte, and printing out.
* Behind The Scenes: Internally, the read() method is handling the task of
* asking for the next data block from the remote computer, processing it (i.e.
* parsing, running checksums), and then putting it in an internal buffer. Not
* all calls to read() will request a new data block as each block contains at
* least 128 bytes of data. Sometimes you will only hit the buffer.
try {
for (;;) {
int c = incomingFile.read();
if (c==-1)
break; // End of File
// print character / byte
System.out.print(c+",");
// write to file
try {
//System.out.print(".");
fw.write(c);
} catch (Exception e) {
System.out.println(e);
System.exit(0);
} catch (IOException e) {
System.out.println("error while reading the incoming file.");
e.printStackTrace();
return;
// done
System.out.println("File sent.");
new PrintStream(outputStream).println("");
new PrintStream(outputStream).println("transfer successful!");
} finally {
//client.close();
// save the file
try {
fw.close();
System.out.println("file saved.");
} catch (Exception e) {
System.out.println(e);
System.exit(0);
* XModem keeps track of settings that the Receive and Transmit Stream classes will
* reference.
* <p>Copyright: Copyright (c) 2004</p>
* @author Fred Potter
* @version 0.1
class XModem {
public static boolean debug = false;
* XModemRXStream is an easy to use class for receiving files via the XModem protocol.
* @author Fred Potter
* @version 0.1
class XModemRXStream
extends InputStream {
// CONSTANTS
private static final int SOH = 0x01;
private static final int EOT = 0x04;
private static final int ACK = 0x06;
private static final int NAK = 0x15;
private static final int CAN = 0x18;
private static final int CR = 0x0d;
private static final int LF = 0x0a;
private static final int EOF = 0x1a;
// block size - DON'T CHANGE - I toyed with the idea of adding 1K support but the code is NOT there yet.
private static final int bs = 128;
// PRIVATE STUFF
private int ebn; // expected incoming block #
private byte[] data; // our data buffer
private int dataPos; // our position with the data buffer
private InputStream in;
private OutputStream out;
* Creates a new InputStream allowing you to read the incoming file. All of the XModem
* protocol functions are handled transparently.
* As soon as this class is instantiated, it will attempt to iniatate the transfer
* with the remote computer - if unsuccessful, an IOException will be thrown. If it
* is successful, reading may commense.
* NOTE: It is important not to wait too long in between calls to read() - the remote
* computer will resend a data block if too much time has passed or even just give up
* on the transfer altogether.
* @param in InputStream from Serial Line
* @param out OutputStream from Serial Line
public XModemRXStream(InputStream in, OutputStream out) throws
IOException {
this.in = in;
this.out = out;
// Initiate the receive sequence - basically, we send a NAK until the data
// starts flowing.
init:for (int t = 0; t < 10; t++) {
if (XModem.debug) {
System.out.println("Waiting for response [ try #" + t + " ]");
long mark = System.currentTimeMillis();
out.write(NAK);
// Frequently check to see if the data is flowing, give up after a couple seconds.
for (; ; ) {
if (in.available() > 0) {
break init;
try {
Thread.sleep(10);
catch (Exception e) {}
if (System.currentTimeMillis() - mark > 2000) {
break;
// We have either successfully negotiated the transfer, OR, it was
// a failure and timed out. Check in.available() to see if we have incoming
// bytes and that will be our sign.
if (in.available() == 0) {
throw new IOException();
// Initialize some stuff
ebn = 1; // the first block we see should be #1
data = new byte[bs];
dataPos = bs;
* Reads the next block of data from the remote computer. Most of the real XModem protocol
* is encapsulated within this method.
* @throws IOException
private synchronized void getNextBlock() throws IOException {
if (XModem.debug) {
//System.out.println("Getting block #" + ebn);
// Read block into buffer. There is a 1 sec timeout for each character,
// otherwise we NAK and start over.
byte[] buffer;
recv:for (; ; ) {
buffer = new byte[bs + 4];
for (int t = 0; t < 10; t++) {
System.out.println("\nReceiving block [ #" + ebn + " ]");
// Read in block
buffer = new byte[buffer.length];
for (int i = 0; i < buffer.length; i++) {
int b = readTimed(1);
// if EOT - don't worry about the rest of the block.
if ( (i == 0) && (b == EOT)) {
buffer[0] = (byte) (b & 0xff);
break;
// if CAN - the other side has cancelled the transfer
if (b == CAN) {
throw new IOException("cancelled");
if (b < 0) {
if (XModem.debug) {
System.out.println("Time out... NAK'ing");
out.write(NAK);
continue recv;
else {
buffer[i] = (byte) (b & 0xFF);
break;
int type = buffer[0] & 0xff; // either SOH or EOT
if (type == EOT) {
if (XModem.debug) {
System.out.println("EOT!");
out.write(ACK);
break;
int bn = buffer[1] & 0xff; // block number
int bnc = buffer[2] & 0xff; // one's complement to block #
if (
(bn != ebn) && (bn != (ebn - 1)) ||
(bn + bnc != 255)) {
if (XModem.debug) {
System.out.println("NAK'ing type = " + type + " bn = " + bn +
" ebn = " +
ebn + " bnc = " + bnc);
out.write(NAK);
continue recv;
byte chksum = buffer[ (buffer.length - 1)];
byte echksum = 0;
for (int i = 3; i < (buffer.length - 1); i++) {
echksum = (byte) ( ( (echksum & 0xff) + (buffer[i] & 0xff)) & 0xff);
if (chksum != echksum) {
out.write(NAK);
continue recv;
out.write(ACK);
if (ebn == 255) {
ebn = 0;
else {
ebn++;
break;
// We got our block, now save it in our data buffer.
data = new byte[bs];
for (int i = 3; i < (buffer.length - 1); i++) {
data[(i - 3)] = buffer;
dataPos = 0;
public synchronized int read() throws IOException {
// If at the end of our buffer, refill it.
if (dataPos == bs) {
try {
getNextBlock();
catch (IOException e) {
throw new IOException();
// If we're still at end of buffer, say so.
if ( dataPos == bs) {
return -1;
int d = data[dataPos];
if (d == EOF)
return -1;
dataPos++;
return d;
* A wrapper around the native read() call that provides the ability
* to timeout if no data is available within the specified timeout value.
* @param timeout timeout value in seconds
* @throws IOException
* @return int an integer representing the byte value read.
private int readTimed(int timeout) throws IOException {
long start = System.currentTimeMillis();
for (; ; ) {
if (in.available() > 0) {
return (in.read());
try {
Thread.sleep(10);
catch (InterruptedException ex) {
//if (System.currentTimeMillis() - start > timeout * 1000) {
if (System.currentTimeMillis() - start > timeout * 5000) {
return -1;
Here was the output...
Original file:
(Commodore CBM SEQ file exported to PC using DirMaster)
��
� �
� ��
� ��
� ��
��
� ��
� � ��
��
� � ��OWERED BY �OLOR 64 �� V8
�UNNING �ETWORK64 V1.26A
�
�UPPORTING 38400 �AUD �ATES
��/��/��
�
�ESTING �CHO-�ET V1 BETA
�
�EATURING �ESSAGES, �ILES,
�ET�AIL, AND �NLINE �AMES!
�YS�P: � � � � � � � � �
�
�RESS ANY KEY TO LOGIN\C�
The result when the file was uploaded and received by my XServer:
? ? ??OWERED BY ?OLOR 64 ??? V8
?UNNING ?ETWORK64 V1.26A
?UPPORTING 38400 ?AUD ?ATES
?ESTING ?CHO-?ET V1 BETA
?EATURING ?ESSAGES, ?ILES,
?ET?AIL, AND ?NLINE ?AMES!
?YS?P: ? ? ? ? ? ? ? ? ?
?RESS ANY KEY TO LOGIN\C?
The result is different!
Can someone help me along here... I have been trying to figure out how to do this for approx. a year or so... it has been a very slow process.
I could use a guru to help me out so I can write the upload and download routines for my Commodore BBS PETSCII Emulation Server.
Visit http://www.retrogradebbs.com for details.
Thanks.
Please help out a dedicated developer who is in over his head...
-Dave

Ok. Fair enough. What about general information about Xmodem. This is a hard project because of how obscure the legacy technology is that I am having to implement using Java and MySQL.
I have two major issues which I have to figure out how to troubleshoot and debug, if possible.
1. The 23+ blocks exception when a file is being received
2. The exception which is thrown immediately if I try to receive a binary file instead of an ASCII file.
I read that telnet is a 7-bit technology and that is why Xmodem, which is an 8-bit technology is not that popular as a viable protocol via telnet, whereas Kermit is, since it was developed for 7-bit systems, i.e. mainframes and minicomputers.
Is this correct?
If that is the case, why does www.serio.com have a viable X-Y-ZModem library available (for several hundred $$$ of course) which can be used with both RS-232 serial ports and TCP socket ports? Obviously, it can be done. They are the ONLY company with this library for sale for Java to do this. I cannot justify that $$$ amount for a mere hobby (writing the BBS emulation server for supporting Commodore PETSCII (CG) callers via CGTerm or a native C-64 terminal program using Jim Brain's TCPSER middleware, which emulates a Hayes modem via telnet for telBBSing/retrocomputing.
I really want to learn how to implement a file transfer protocol, since back in the 80s, I used Xmodem, Punter, Y/Z Modem, etc., a lot to upload and download files via modem at baud rates of 2400, 14.4, 19.2, and 38.4, respectively.
It's fun to learn how the old skool gurus of telecommunications technology did it. It is one thing to run a BBS which supports these technologies and features, and it is an entirely other thing to learn how to design and develop them yourself for implementation into a project such as I taken on.
It CAN be done. It WILL be done. However, I have just started my exhaustive research on how it needs to be done. I have read up as much as I could on XModem by Ward C., the father of the protocol.
But, I have no information to help me figure out why the communications are acting as they do so far.
Can someone please download the xserver.zip file on my website at:
www.retrogradebbs.com/projects/xserver.zip
Compile it. Run it. Connect using HyperTerminal, Netrunner, or another telnet terminal emulation program which supports Xmodem file transfers using WinSock.
See what happens. With finals due in the next two days, this project will have to be put on hold until after I submit my two final projects.
If anyone knows what needs to be done to support both ASCII and BINARY file transfers via Xmodem via a socket instead of a modem with RTS/CTS hardware flow control, please respond.
I know for a fact that this can be done.
- Dave

Get the relative path for java class

How to get Relative path for java class which is inside in web-inf directory in webapps

ajay.manchu wrote:
Hi gimbal2,
My Requirement is i need to run a java class from batch file,when i created batch file in that i need to mention the complete path of the java class,so instead of mentioning that i want to provide only java class name,thats why i asked that one..
can u help me regarding that....
Thanks in advanceI wonder how that would work then. Let's take a fictive example. You have a class com.mycompany.myapp.Foo. This would mean that the class is stored in some directory like this:
c:/webrootdir/myapp/WEB-INF/classes/com/mycompany/myapp/Foo.classTo be able to run such a class from the commandline using Java, you would have to invoke this command:
java -cp c:/webrootdir/myapp/WEB-INF/classes com.mycompany.myapp.FooHow would knowing the exact path to this class help you?

How to create a report with data using the Crystal Reports for Java SDK

Hi,
How do I create a report with data that can be displayed via the Crystal Report for Java SDK and the Viewers API?
I am writing my own report designer, and would like to use the Crystal Runtime Engine to display my report in DHTML, PDF, and Excel formats. I can create my own report through the following code snippet:
ReportClientDocument boReportClientDocument = new ReportClientDocument();
boReportClientDocument.newDocument();
However, I cannot find a way to add data elements to the report without specifying an RPT file. Is this possible? I seems like it is since the Eclipse Plug In allows you to specify your database parameters when creating an RPT file.
is there a way to do this through these packages?
com.crystaldecisions.sdk.occa.report.data
com.crystaldecisions.sdk.occa.report.definition
Am I forced to create a RPT file for the different table and column structures I have?
Thank you in advance for any insights.
Ted Jenney

Hi Rameez,
After working through the example code some more, and doing some more research, I remain unable to populate a report with my own data and view the report in a browser. I realize this is a long post, but there are multiple errors I am receiving, and these are the seemingly essential ones that I am hitting.
Modeling the Sample code from Create_Report_From_Scratch.zip to add a database table, using the following code:
<%@ page import="com.crystaldecisions.sdk.occa.report.application.*"%>
<%@ page import="com.crystaldecisions.sdk.occa.report.data.*"%>
<%@ page import="com.crystaldecisions.sdk.occa.report.document.*"%>
<%@ page import="com.crystaldecisions.sdk.occa.report.definition.*"%>
<%@ page import="com.crystaldecisions.sdk.occa.report.lib.*" %>
<%@ page import = "com.crystaldecisions.report.web.viewer.*"%>
<%
try {
            ReportClientDocument rcd = new ReportClientDocument();
            rcd.newDocument();
// Setup the DB connection
            String database_dll = "Sqlsrv32.dll";
            String db = "qa_start_2012";
            String dsn = "SQL Server";
            String userName = "sa";
            String pwd = "sa";
            // Create the DB connection
            ConnectionInfo oConnectionInfo = new ConnectionInfo();
            PropertyBag oPropertyBag1 = oConnectionInfo.getAttributes();
            // Set new table logon properties
            PropertyBag oPropertyBag2 = new PropertyBag();
            oPropertyBag2.put("DSN", dsn);
            oPropertyBag2.put("Data Source", db);
            // Set the connection info objects members
            // 1. Pass the Logon Properties to the main PropertyBag
            // 2. Set the Server Description to the new **System DSN**
            oPropertyBag1.put(PropertyBagHelper.CONNINFO_CRQE_LOGONPROPERTIES, oPropertyBag2);
            oPropertyBag1.put(PropertyBagHelper.CONNINFO_CRQE_SERVERDESCRIPTION, dsn);
            oPropertyBag1.put("Database DLL", database_dll);
            oConnectionInfo.setAttributes(oPropertyBag1);
            oConnectionInfo.setUserName(userName);
            oConnectionInfo.setPassword(pwd);
            // The Kind of connectionInfos is CRQE (Crystal Reports Query Engine).
            oConnectionInfo.setKind(ConnectionInfoKind.CRQE);
// Add a Database table
          String tableName = "Building";
            Table oTable = new Table();
            oTable.setName(tableName);
            oTable.setConnectionInfo(oConnectionInfo);
            rcd.getDatabaseController().addTable(oTable, null);
    catch(ReportSDKException RsdkEx) {
            out.println(RsdkEx);
    catch (Exception ex) {
          out.println(ex);
%>
Throws the exception
com.crystaldecisions.sdk.occa.report.lib.ReportSDKException: java.lang.NullPointerException---- Error code:-2147467259 Error code name:failed
There was other sample code on SDN which suggested the following - adding the table after calling table.setDataFields() as in:
          String tableName = "Building";
            String fieldname = "Building_Name";
            Table oTable = new Table();
            oTable.setName(tableName);
            oTable.setAlias(tableName);
            oTable.setQualifiedName(tableName);
            oTable.setDescription(tableName) ;
            Fields fields = new Fields();
            DBField field = new DBField();
            field.setDescription(fieldname);
            field.setHeadingText(fieldname);
            field.setName(fieldname);
            field.setType(FieldValueType.stringField);
            field.setLength(40);
            fields.add(field);
            oTable.setDataFields(fields);
            oTable.setConnectionInfo(oConnectionInfo);
            rcd.getDatabaseController().addTable(oTable, null);
This code succeeds, but it is not clear how to add that database field to a section. If I attempt to call the following:
FieldObject oFieldObject = new FieldObject();
            oFieldObject.setDataSourceName(field.getFormulaForm());
            oFieldObject.setFieldValueType(field.getType());
            // Now add it to the section
            oFieldObject.setLeft(3120);
            oFieldObject.setTop(120);
            oFieldObject.setWidth(1911);
            oFieldObject.setHeight(226);
            rcd.getReportDefController().getReportObjectController().add(oFieldObject, rcd.getReportDefController().getReportDefinition().getDetailArea().getSections().getSection(0), -1);
Then I get an error (which is not unexpected)
com.crystaldecisions.sdk.occa.report.lib.ReportDefControllerException: The field was not found.---- Error code:-2147213283 Error code name:invalidFieldObject
How do I add one of the table.SetDataFields() to my report to be displayed?
Are there any other pointers or suggestions you may have?
Thank you

I just ran a software update for Java and MacBook Pro SMC, now my Mini Display Port to HDMI TV is not working. The TV is flickering. The Mac Display is fine.

I was just watching / streaming TV off Safari on my actual TV.
I'm using a Mini-Display Port to HDMI cable for the connection to the external display.
Software update popped-up and said there was an update for Java and for SMC.
I ran the update and upon the computer restarting, my external display (my TV) is no longer working. It is now flickering.
It won't work in Mirroring or set up as an extended display.
I've reset SMC / PRAM / Safe Mode / Even restored from a Time Machine backup (From before the updates were done).
What could it be?!

I keep saying this over and over, in the hope that people who do a search will find it. Apple cannot possibly test for or be reponsible for the bazillion combinations of adapter, cables, and TV's out there. The only monitors that are 100% guaranteed to work with the MacBook Pro are the Cinema Displays and Thunderbolt Displays, because, they're made by Apple. They're expensive, but they work perfectly.
My guess is that you bought a cheap MDP to HDMI cable, or have a defective one. From my reading of these boards over the past few months, cheap cables have a high failure rate. And the regular priced ones have only a slightly less of one. Try a new one. Make sure you do not damage the Thunderbolt port.

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