Implementation of TableSorter class partially successful

Greetings, esteemed experts.
I have successfully applied the TableSorter class to my table, and sorting occurs correctly in runtime. The sort is performed in ascending order, which matches the clients' requirement. However, the tooltip text for the sort icon (up/down arrows) remains as 'not sorted', and clicking the icon multiple times does not result in the sort toggling between ascending and descending directions.
All the articles and posts I have read regarding the TableSorter class seem to indicate that this is not consistent with its design.
Any wisdom to share?

Sorting was not being invoked properly because the field that is being sorted is a time field. The string comparison collator class could not sort the values, so the TableSorter.class Comparator method was modified to parse out hour and minute values. Fortunately, for our application, no other columns in the table have the 'sortable' requirement, so we could customize the class file for the project without impacting any other functionality.

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How to use TableSorter class with DefaultTableModel

Hi Friends
Please tell me how to use TableSorter Class which is in the Java. Tutorials with DefaultTableModel.
i saw in a thread there it was given that we have to pass the DefaultTableModel to the TableSorter Class.
I tried to use like that. But i am getting Error Like Exception occurred during event dispatching:
I am posting the part of Code where i use the DefaultTableModel
 private void displayavailablity(String selectedAuthor)
 try
 Vector columnNames = new Vector();
 Vector data1 = new Vector();
 String bname,bauthor,bcategory,bref1,bavail,bid;
 int bref,mid,num;
 rs = st.executeQuery("SELECT BId,BName,BAuthorName,BAuthorandPublisher,BCat FROM Books where BAuthorandPublisher='" +selectedAuthor+"'");
 ResultSetMetaData md= rs.getMetaData();
 int columns =md.getColumnCount();
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Thank you for your service
Cheers
Jofin

I don't know about any TableSorter class, but I suppose you mean javax.swing.table.TableRowSorter.
The TableRowSorter is to be attached to the JTable, not to the data model. Here's a cut'n'paste from the last time I used it:
RowSorter<TableModel> sorter = new TableRowSorter<TableModel>(tableModel);
myTable.setRowSorter(sorter);
And heres from the JDK1.6 documentation:
TableModel myModel = createMyTableModel();
JTable table = new JTable(myModel);
table.setRowSorter(new TableRowSorter(myModel));
Check out http://java.sun.com/javase/6/docs/api/javax/swing/table/TableRowSorter.html. I find it to be good documentation.

How to implement a java class in my form .

Hi All ,
I'm trying to create a Button or a Bean Area Item and Implement a class to it on the ( IMPLEMENTATION CLASS ) property such as ( oracle.forms.demos.RoundedButton ) class . but it doesn't work ... please tell me how to implement such a class to my button .
Thanx a lot for your help.
AIN
null

hi [email protected]
tell me my friend .. how can i extend
the standard Forms button in Java ? ... what is the tool for that ... can you explain more please .. or can you give me a full example ... i don't have any expereience on that .. i'm waiting for your reply .
Thanx a lot for your cooperation .
Ali
<BLOCKQUOTE>quote:<HR>Originally posted by [email protected]:
Henrik, the Java importer lets you call Java classes on the app server side - I think what Ali is trying to do is integrate on the client side.
If you want to add your own button then if you extend the standard Forms button in Java and then use this class name in the implementation class property then the Java for your button will be used instead of the standard Forms button. And since it has extended the basic Forms button it has all the standard button functionality.
There is a white paper on OTN about this and we have created a new white paper which will be out in a couple of months (I think).
Regards
Grant Ronald<HR></BLOCKQUOTE>
null

The creation of the new workspace has been partially successful

Hi,
I tried to create a Workspace called WSMedicina and the following error apears:
The creation of the new workspace has been partially successful.
Exception Message: Cannot find library item WsMedicina.
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Thanks.
James.

Hello James,
What error appears in the application.log file for Workspaces when the creation fails? You can find this log at a path like this:
$ORACLE_HOME/j2ee/OC4J_OCSClient/application-deployments/workspaces/OC4J_Workspaces_default_island_1
Has creation of a library during new workspace creation worked in the past?
Can the same user access the Content Services application successfully?
regards,
-Neil.

How to implement a singleton class across apps in a managed server}

Hi ,
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Both are then deployed as a web app (war file) in a managed server.
I created a similar app , deployed the same as another app in the same managed server .
I have a logger running which logs the singleton instances as well.
But am getting two instances of the singleton class in the two apps - not the same .
I was under the impression that , a singleton is loaded in the class loader level , and since all apps under the same managed server used the same JVM , singleton will only get initialized once.
Am i missing something here ? or did i implement it wrong..?
public class Test
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}Edited by: Tom on Dec 8, 2010 2:45 PM
Edited by: Tom on Dec 8, 2010 2:46 PM

Tom wrote:
Hi ,
I tried implementing a singleton class , and then invoking the same in a filter class.
Both are then deployed as a web app (war file) in a managed server.
I created a similar app , deployed the same as another app in the same managed server .
I have a logger running which logs the singleton instances as well.
But am getting two instances of the singleton class in the two apps - not the same .Two apps = two instances.
Basically by definition.
>
I was under the impression that , a singleton is loaded in the class loader level , and since all apps under the same managed server used the same JVM , singleton will only get initialized once. A class is loaded by a class loader.
Any class loader that loads a class, by definition loads the class.
A VM can have many class loaders. And far as I know every JEE server in existance that anyone uses, uses class loaders.
And finally there might be a problem with the architecture/design of a JEE system which has two applications but which is trying to solve it with a singleton. That suggests a there might be concept problem with understanding what an "app" is in the first place.

Implementing a secure class loader..

Hello,
We have a custom class loader which loads in custom packages from the database or from the file system. We want to ensure that these custom classes do not read or write into the file system. I want to restrict access to these classes when creating them. I read that by setting the proper permissions when defining the class, this could be possible. Here is my implementation of the class loader :
import java.io.File;
import java.io.FileInputStream;
import java.io.FilePermission;
import java.io.IOException;
import java.net.SocketPermission;
import java.net.URL;
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import java.security.CodeSource;
import java.security.PermissionCollection;
import java.security.Permissions;
import java.security.PrivilegedExceptionAction;
import java.security.SecureClassLoader;
public class TestClassLoader extends SecureClassLoader {
 JarParser jp;
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 this.jp = jp;
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 try {
 return(Class)
 AccessController.doPrivileged (
 new PrivilegedExceptionAction() {
 public Object run() throws ClassNotFoundException {
 byte[] buf = null;
 try {
 if(jp == null)
 throw new ClassNotFoundException("Jar file not found");
 String className = name.replace( '.', '/' ) + ".class";
 buf = jp.getResource(className);
 if(buf == null || buf.length == 0)
 throw new ClassNotFoundException("Class not found");
 CodeSource cs = getCodeSource(name);
 return defineClass(name, buf, 0, buf.length, cs);
 catch(Exception e) {
 throw new ClassNotFoundException(name, e);
 catch(Exception e) {
 throw new ClassNotFoundException(name, e);
 * @param name
 protected CodeSource getCodeSource(String name) {
 try {
 return new CodeSource(new URL("file", "localhost", name), null);
 catch(Exception e){
 e.printStackTrace();
 return null;
 protected PermissionCollection getPermissions(CodeSource cs) {
 PermissionCollection pc = new Permissions();
 pc.add(new RuntimePermission("exitVM"));
 pc.add(new FilePermission("${user.home}${/}*", "read"));
 pc.add(new FilePermission("${user.dir}${/}*", "read"));
 pc.add(new SocketPermission("localhost", "resolve"));
 return pc;
 public static void main(String[] args) {
 try {
 byte[] bytes = new byte[8192];
 long ttlBytesRead = 0;
 int noOfBytesToRead = 0;
 File readFile = new File("test.jar");
 // "length" here indicates the total no of bytes to read.
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 long length = readFile.length();
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 FileInputStream readFis = null;
 // Create the RandomAccessFile
 try{
 readFis = new FileInputStream(readFile);
 catch(Exception e) {
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 long tempLong;
 StringBuffer buffer = new StringBuffer();
 do {
 if ((length - ttlBytesRead) > 8192)
 tempLong = 8192;
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 readFis.read(bytes,0,noOfBytesToRead);
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 String str = new String(bytes, 0, noOfBytesToRead);
 buffer.append(str);
 ttlBytesRead += noOfBytesToRead;
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 try {
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 Object obj = class1.newInstance();
 catch(Exception e) {
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}JarParser is the class which parses through the jar file and caches the contents as bytes.
The test.jar contains a single class which writes into the user's home directory. As you can see, I have granted only read access on the home dir.
When I run this however, the newly loaded class does manage to write into the file system with no problems. Is there anything further that I need to do to enable restriction on the file system ?
Thanks.

If I've been reading correctly, they don't want you
subclassing SecurityManager for security any more.
Everything should be handled by the AccessController
using Permission objects. The easiest way to configure
the AccessController is through policy files.erg. where did you read this? I checked the 1.5.0 beta API just now, and nothing is officially deprecated.
:{ I don't have time to figure out the AccessController API right now.
I have yet to find a good tutorial on the matter of
security and classloaders. If anyone has a good
reference, it would be much appreciated.I second that.
And as a temporary solution (because we're already behind schedule), I went ahead and wrote my own SecurityManager, using the ideas I mentioned above.
I'm posting it at the site below in case anyone can offer any feedback (such as pointing out fatal weaknesses). We tried yesterday for an hour or so to break it, and it withstood all our tests; but security is not our specialty, so there's probably room for improvement.
(I'd post it in this message, but it's a wee bit large.)
www.personal.utulsa.edu/~jeremy-wood/software/ThreadBasedSecurityManager.java
(And if it passes your scrutiny and looks useful, feel free to use it. But note the disclaimers.)

CiscoWorks: Why all devices Sync archive only partially successful.

Hi,
Whenever we sync archive a device, its always partially successfull only, and when we click partial successfull , below details appears. We have 4000 devices and all are only partially successful only Below details are from partial successful device, it has the vlan. dat and before it was working ok.
*** Device Details for Device1 *** Protocol ==> Telnet Selected Protocols with order ==> SSH,Telnet,TFTP,RCP,HTTPS
Execution Result: CM0062 Polling Device1 for changes to configuration. CM0065 No change in PRIMARY STARTUP config, config fetch not required CM0065 No change in PRIMARY RUNNING config, config fetch not required CM00 Polling not supported on VLAN RUNNING config, defaulting to fetch. VLAN CM0057 VLAN RUNNING Config fetch SUCCESS, archival failed for Device1 Cause: CM0005: Archive does not exist for Device1 Action: Verify that archive exists for device.
Also If I goto e:\NMSROOT\files\rme\jobs\ArchiveMgmt\6523(JOBID) and then log, below is output from logs.
[ Mon Nov 14 14:55:37 GMT 2011 ],ERROR,[main],com.cisco.nm.rmeng.dcma.jobdriver.DcmaJobExecutor,initJobPolicies,925,Could not configure Thread.
[ Mon Nov 14 14:55:37 GMT 2011 ],ERROR,[main],com.cisco.nm.rmeng.dcma.jobdriver.DcmaJobExecutor,sendMail,1334,sendEmailMessage: Null recipient list
[ Mon Nov 14 14:56:20 GMT 2011 ],ERROR,[main],com.cisco.nm.rmeng.dcma.jobdriver.DcmaJobExecutor,sendMail,1334,sendEmailMessage: Null recipient list
I am getting below logs,please advice, how to resolve the issue.
Thanks.
I am using LMS 3.2.1

Yes you are right that we have restore from backup and since then this problem occurs. We have uninstall the CiscoWorks from c: drive and install it on e:drive, due to high disk utilization issue on c: drive.
I have checked the
RME > Administration > Config Management > Archive Management > Archive settings and setting is already e: /CIS~1/files/rme/dcma,
Also from dbreade, by executing the sql "select * from Config_Device_Archive" in rmeng, I can see that some file location is C:drive and orther files location is E: drive, so I have run the below sql to correct it, although it executed correctly, by I can see that Config_Device_Archive table that still some devices location is c:, others is e: drive.
update Config_Device_Archive set
location=replace(location,'C:\\PROGRA~1\\CSCOpx','E:\\CAPCIS~1')
Please advice, that how to resolve this issue.
Thanks

Instance of one of implementations of abstract class depending on context??

Hi all,
I just wonder if it is possible in Java to call creation of a new instance of an implementation of an abstract class depending on context.
I mean something like:
abstract class Abstract
//1st implementation of Abstract class
class Concrete1 extends Abstract
//2nd implementation of Abstract class
class Concrete2 extends Abstract
}And now, somewhere else in the code, I would really need to call something like this:
Abstract test1 = new ...(); //here I need sometimes to be created instance of Concrete1, sometimes instance of Concrete2
Is there a way how to do this??

Some more concrete code if it helps:
Abstract class:
* Individual.java
* Created on 21. leden 2007, 1:08
package genetics;
* Abstract class defining fields and methods of one individual for genetic algorithms
* This class is supposed to be implemented according to problem to be solved
* @author Richard V�tek
* @version 1.0
abstract public class Individual implements Comparable<Individual>
 * Create random chromosomes for this individual
protected abstract void createRandomChromosomes();
 * Count fitness of this individual
 * This number says how good is this individual (the higher number the better).
 * Better fitness means that this individual is closer to solution.
 * @return int Fitness of this individual
protected abstract int getFitness();
 * Cross-breed this individual with another individual
 * This leaves untouched number of chromosomes to certain (randomly generated) position.
 * From this position on, it will swap chromosomes between this and another individual.
 * So this individual gets changed (cross-breeded) as well as the other, which is returned
 * as result of this method.
 * @param other The other individual to cross-breed with
 * @return Individual Hybrid of this and another individual (in fact, the other individual
 * after cross-breed (this (source) individual gets changed too after cross-breed)
protected abstract Individual crossbreed(Individual other);
 * Mutate this individual
 * Mutate chromosomes of this individual; every chromosome is mutated
 * with probability set in settings of evolution.
 * This probability is supposed to be quite low number, roughly 1 %.
protected abstract void mutate();
 * Check this individual
 * Check if this individual still suits the assignment.
 * If not, repair this individual to suit it again.
protected abstract void check();
 * Implementation of Comparable: comparing of individuals by fitness
 * @param other Another individual to compare
public int compareTo(Individual other)
 return this.getFitness() - other.getFitness();
One implementation class:
* KnapsackIndividual.java
* Created on 21. leden 2007, 1:41
package genetics;
import java.util.Random;
import java.util.TreeMap;
import knapsack.KnapsackProblem;
* This is practically the same as KnapsackProblem class but designed specially
* for solving knapsack problem with genetic algorithm so all unnecessary fields
* and methods are removed.
* @author Richard V�tek
* @version 1.0
public class KnapsackIndividual extends Individual
 * Chromosomes of this individual
 * In case of knapsack problem, they are things currentl in knasack
protected boolean[] arrChromosomes;
 * Cached value of fitness of this individual
 * Used to not to count fitness of this individual everytime when needed
 * (and it is often needed); once counted, it will be read from this cached value
private int intFitnessCache = Integer.MIN_VALUE;
 * Randomizer for random-driven methods (like mutation, etc.)
private Random randomizer = new Random();
 * Reference to evolution to read mutation probability from
protected Evolution evolution;
 * Assignment of problem instance
protected KnapsackProblem assignment;
 * Create a new Individual instance
 * @param assignment Object representing assignment of particular problem
 * @param evolution Reference to evolution object to be able to read evolution's settings from
public KnapsackIndividual(KnapsackProblem assignment, Evolution evolution)
 this.assignment = assignment;
 this.evolution = evolution;
 this.arrChromosomes = new boolean[assignment.getNumberOfThings()];
 * Create random chromosomes for this individual
 * @see Individual#createRandomChromosomes()
protected void createRandomChromosomes()
 int intChromosomeCount = this.arrChromosomes.length;
 for (int i = 0; i < intChromosomeCount; i++)
 this.arrChromosomes[i] = this.randomizer.nextBoolean();
 * Get fitness of this individual
 * In case of knapsack, fitness is sum of prices of all things currently in knapsack
 * @see Individual#getFitness()
protected int getFitness()
 //if cached value exist, return it
 if (this.intFitnessCache != Integer.MIN_VALUE)
 return this.intFitnessCache;
 //otherwise, count fitness of this individual
 int intChromosomeCount = this.arrChromosomes.length;
 int intSumOfValues = 0;
 //in case of knapsack, fitness is value of all things currently in knapsack
 //(sum of values of all things in knapsack)
 for (int i = 0; i < intChromosomeCount; i++)
 intSumOfValues = this.assignment.arrPrices;
//save counted fitness to cache
this.intFitnessCache = intSumOfValues;
return intSumOfValues;
* Cross-breed two individuals
* @param other The other individual for cross-breed
* @return The other individual after cross-breed (but this individual is affected too)
* @see Individual#crossbreed()
protected Individual crossbreed(Individual other)
int intChromosomeCount = this.arrChromosomes.length;
//position from which on swap chromosomes of this and the other individual
int intCrossbreedPosition = this.randomizer.nextInt(intChromosomeCount);
boolean booTemp;
//swap chromosomes from cross-breed position on
for (int i = intCrossbreedPosition; i < intChromosomeCount; i++)
booTemp = ((KnapsackIndividual) this).arrChromosomes[i];
((KnapsackIndividual) this).arrChromosomes[i] = ((KnapsackIndividual) other).arrChromosomes[i];
((KnapsackIndividual) other).arrChromosomes[i] = booTemp;
return other;
* Mutate individual chromosomes of this individual with certain probability
* In case of knapsack, particular thing is just inserted/taken out of the knapsack
* @see Individual#mutate()
protected void mutate()
//probability of mutation (in percents)
int intMutationProbability = this.evolution.getMutationProbability();
int intChromosomeCount = this.arrChromosomes.length;
//iterate through all chromosomes, mutating them with certain (set) probability
for (int i = 0; i < intChromosomeCount; i++)
//mutation probability passed => mutate this chromosome
if (this.randomizer.nextInt(100) < intMutationProbability)
this.arrChromosomes[i] = !this.arrChromosomes[i];
//when mutation finished, we must check if this individual still suits the assignment;
//if not, repait it
this.check();
* Check if this individual still suits the assignment; if not, repair it
* In case of knapsack it means that sum of weights of things currently in knapsack
* will not exceed capacity of backpack; if exceeds, take out as many things as necessary
* to not to exceed again; choose things to be taken out according to worst weight to price ratio
* @see Individual#check()
protected void check()
int intSumOfWeights = 0;
//list of things in the knapsack sorted by weight to price ratio
//key: index of thing in knapsack
//value: weight/price ratio
TreeMap<Integer, Float> things = new TreeMap<Integer, Float>();
for (int i = 0; i < this.arrChromosomes.length; i++)
//thing in the knapsack
if (this.arrChromosomes[i] == true)
//add its weight to sum of weights
intSumOfWeights += this.assignment.arrWeights[i];
//add it to the list of things sorted by weight to price ratio
things.put(i, (((float) this.assignment.arrWeights[i]) / ((float) this.assignment.arrPrices[i])));
//sum of weights exceeds knapsack capacity => take out as many things as necessary
while (intSumOfWeights > this.assignment.getKnapsackCapacity())
//take out thing with worst weight/price ratio from all things currently in knapsack
this.arrChromosomes[things.lastKey()] = false;
//update sum of weights of things currently in knapsack
intSumOfWeights -= things.get(things.lastKey());
//also remove this thing from list of things
things.remove(things.lastKey());
And another class, where i need this feature (tried to use generics for that, but they can't be used in this way):
* Evolution.java
* Created on 21. leden 2007, 2:47
package genetics;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Arrays;
* Class for algorithms using simulated evolution to deal with a problem
* Tried to be designed general enough to allow to be used for every genetic algotihm.
* If true, only class Individual must be implemented according to problem to be solved,
* the rest of genetic algorithm stays the same.
* @author Richard V�tek
* @version
public class Evolution<Problem, IndividualClass extends Individual>
 * Number of generations of evolution to finish
protected int intGenerationCount;
 * Number of individuals in each generation
protected int intGenerationSize;
 * Elite individual count
 * All elite individuals are just copied from one generation to another with no change
protected int intGenerationEliteCount;
 * Number of individuals participating a tournament
 * To select an good individual for next generation, tournaments are hold.
 * This affects number of individuals which one good individual is selected
 * from in one tournament.
 * @see <a href="http://cs.felk.cvut.cz/%7Exobitko/ga/example_f.html">Genetic Algorithm Example Applet</a>
protected int intGenerationTournamentSize;
 * Probability of mutation (in percents)
protected int intMutationProbability;
 * Current generation of individuals in evolution
protected Generation<IndividualClass> thisGeneration;
 * Next generation of individuals in evolution
protected Generation<IndividualClass> nextGeneration;
 * Fitness of best individual in this generation
private int intIndividualBestFitness;
 * Sum of fitnesses of all individuals in this generation
private int intIndividualsSumFitness;
 * Fitness of worst individual in this generation
private int intIndividualWorstFitness;
 * Fitness of best elite individual in (every) generation
 * Auxilliary variable to not to count statistics for elite individuals
 * in each generation as well (not needed - elite individuals don't change themselves)
private int intIndividualEliteBestFitness;
 * Sum of fitnesses of all elite individuals in (every) generation
 * Auxilliary variable to not to count statistics for elite individuals
 * in each generation as well (not needed - elite individuals don't change themselves)
private int intIndividualElitesSumFitness;
 * Fitness of worst elite individual in (every) generation
 * Auxilliary variable to not to count statistics for elite individuals
 * in each generation as well (not needed - elite individuals don't change themselves)
private int intIndividualEliteWorstFitness;
 * Create a new instance of Evolution (settings passed through parameters)
 * @param intGenerationCount Number of generation of evolution to finish
 * @param intGenerationSize Number of individuals in each generation
 * @param intGenerationEliteRatio Elite individuals to generation size ratio (in percents)
 * @param intGenerationTournamentRatio Members of tournament to generation size ratio (in percents)
 * @param intMutationProbability Probability of mutation of each chromosome of each individual of generation (in percents)
 * @see #intGenerationEliteCount
 * @see #intGenerationTournamentSize
public Evolution(
 int intGenerationCount, int intGenerationSize,
 int intGenerationEliteRatio, int intGenerationTournamentRatio,
 int intMutationProbability)
 this.intGenerationCount = intGenerationCount;
 this.intGenerationSize = intGenerationSize;
 this.intGenerationEliteCount = (int) (intGenerationSize * (intGenerationEliteRatio / 100.0));
 this.intGenerationTournamentSize = (int) (intGenerationSize * (intGenerationTournamentRatio / 100.0));
 this.intMutationProbability = intMutationProbability;
 * Create a new instance of Evolution (settings loaded from settings file)
 * @param strSettingFile Name of file containing settings for evolution
 * @throws IOException File does not exist, cannot be read, etc.
 * @throws Exception Another exception occured during loading of file
public Evolution(String strSettingFile)
 BufferedReader settings;
 String settingsLine;
 int intLineCounter = 0;
 int intSetting;
 try
 settings = new BufferedReader(new FileReader(strSettingFile));
 while ((settingsLine = settings.readLine()) != null)
 intLineCounter++;
 settingsLine = settingsLine.substring(0, settingsLine.indexOf("\t"));
 intSetting = Integer.parseInt(settingsLine);
 switch (intLineCounter)
 case 1:
 this.intGenerationCount = intSetting;
 break;
 case 2:
 this.intGenerationSize = intSetting;
 break;
 case 3:
 this.intGenerationEliteCount = (int) (this.intGenerationSize * (intSetting / 100.0));
 break;
 case 4:
 this.intGenerationTournamentSize = (int) (this.intGenerationSize * (intSetting / 100.0));
 break;
 case 5:
 this.intMutationProbability = intSetting;
 break;
 } //switch
 } //while
 //after reading has been completed, let's close the stream
 settings.close();
 } //try
 //IO exception - file not found, cannot be read, etc.
 catch (IOException ioe)
 System.out.println("Vyskytl se I/O probl�m při nač�t�n� zad�n� ze souboru " + strSettingFile);
 //Exception - another problem during reading of file
 catch (Exception e)
 System.out.printf("Vyskytl se nějak� divn� probl�m při nač�t�n� zad�n� ze souboru %s. V�pis vyj�mky:\n", strSettingFile);
 e.printStackTrace();
 * Vivify first generation for evolution
 * Necessary number of individuals is created with random chromosomes.
 * Their chromosomes must then be checked if they suit the assignment
 * and if not so, repaired.
private Generation<IndividualClass> vivifyFirstGeneration()
 //create a brand-new generation
 Generation generation = new Generation<IndividualClass>(this);
 int intTemp;
 //for all individual of this generation
 for (int i = 0; i < this.intGenerationSize; i++)
//create an individual with no chromosomes
generation.arrIndividuals[i] = new IndividualClass(this, Problem);
 //create a set of random chromosomes
 neration.arrIndividuals.createRandomChromosomes();
//if these chromosomes does not suit assignment, repair them
generation.arrIndividuals[i].check();
//sort Individuals by fitness so elite individuals get to first positions of array
Arrays.sort(generation.arrIndividuals);
//now count statistics for elite individuals (it is enough to count them once,
//elite don't get changed so their statistics don't get changed either)
this.intIndividualEliteBestFitness = Integer.MIN_VALUE;
this.intIndividualElitesSumFitness = 0;
this.intIndividualEliteWorstFitness = Integer.MAX_VALUE;
//count statistics for elite individuals
for (int i = 0; i < this.intGenerationEliteCount; i++)
intTemp = generation.arrIndividuals[i].getFitness();
//better fitness than best fitness so far
if (intTemp > this.intIndividualEliteBestFitness)
this.intIndividualEliteBestFitness = intTemp;
//worse fitness than worst fitness so far
else if (intTemp < this.intIndividualEliteWorstFitness)
this.intIndividualEliteWorstFitness = intTemp;
this.intIndividualElitesSumFitness += intTemp;
//reset generation's statistics
this.intIndividualBestFitness = this.intIndividualEliteBestFitness;
this.intIndividualsSumFitness = this.intIndividualElitesSumFitness;
this.intIndividualWorstFitness = this.intIndividualEliteWorstFitness;
//count generation's statistics also from rest of individuals
for (int i = this.intGenerationEliteCount; i < this.intGenerationSize; i++)
updateGenerationStatistics(generation.arrIndividuals[i].getFitness());
return generation;
* Get next generation in evolution
* Core method for all evolution; Through this method, new generation is obtained.
* Every next generation should contain better individuals than the previous one
* (till certain point) so with growing number of iterations in evolution, we
* get better results (till certain point).
* Everytime all elite individuals are copied to next generation, then hold needed number of
* tournaments to choose a pair of good-looking individuals, cross-breed individuals in these
* pairs, mutate them (and repair if necessary) and finally add to next generation.
* @return Generation Next generation in evolution
* @see Generation#tournament()
* @see Generation#crossbreed()
* @see Generation#mutate()
private Generation getNextGeneration()
Generation nextGeneration = new Generation(this);
//number of pairs of individuals to select for next generation
int intIndividualPairsToSelect = (this.intGenerationSize - this.intGenerationEliteCount) / 2;
int intTemp;
//reset generation's statistics
this.intIndividualBestFitness = this.intIndividualEliteBestFitness;
this.intIndividualsSumFitness = this.intIndividualElitesSumFitness;
this.intIndividualWorstFitness = this.intIndividualEliteWorstFitness;
//just copy all elite individuals from this generation to another
//(they are on first positions of array of individuals)
for (int i = 0; i < this.intGenerationEliteCount; i++)
nextGeneration.arrIndividuals[i] = this.thisGeneration.arrIndividuals[i];
//hold as many tournaments as necessary to select remaining number of pairs
//of good-looking individuals for next generation (apart from the elite ones)
for (int i = 0; i < intIndividualPairsToSelect; i++)
this.thisGeneration.tournament();
this.thisGeneration.crossbreed();
this.thisGeneration.mutate();
//add this individual in next generation
nextGeneration.arrIndividuals[2 * i] = this.thisGeneration.nextGenerationIndividual01;
//update statistics of generation
updateGenerationStatistics(this.thisGeneration.nextGenerationIndividual01.getFitness());
//add this individual in next generation
nextGeneration.arrIndividuals[2 * i + 1] = this.thisGeneration.nextGenerationIndividual02;
//update statistics of generation
updateGenerationStatistics(this.thisGeneration.nextGenerationIndividual02.getFitness());
//next generation is complete => return it
return nextGeneration;
* Update statistics of current generations
* @param intFitness Fitness that may possibly update generation's statistics
* (best fitness, worst fitness, sum of fitnesses)
private void updateGenerationStatistics(int intFitness)
//better fitness than best fitness so far
if (intFitness > this.intIndividualBestFitness)
this.intIndividualBestFitness = intFitness;
//worse fitness than worst fitness so far
else if (intFitness < this.intIndividualWorstFitness)
this.intIndividualWorstFitness = intFitness;
//update sum of fitnesses as well (for average fitness)
this.intIndividualsSumFitness += intFitness;
* Execute evolution process
* Vivify first generation and then as many next generations as set in settings of evolution
public void evolution()
this.thisGeneration = vivifyFirstGeneration();
//output generation's statistics
System.out.printf("Generace 0:\t%d\t%d\t%d", this.getIndividualBestFitness(), this.getIndividualAverageFitness(), this.getIndividualWorstFitness());
for (int i = 0; i < this.intGenerationCount; i++)
this.nextGeneration = getNextGeneration();
this.thisGeneration = this.nextGeneration;
//output generation's statistics
System.out.printf("Generace %d:\t%d\t%d\t%d", i, this.getIndividualBestFitness(), this.getIndividualAverageFitness(), this.getIndividualWorstFitness());
* Get best fitness of all individuals in this generation
public int getIndividualBestFitness()
return intIndividualBestFitness;
* Get average fitness of all individuals in this generation
public float getIndividualAverageFitness()
return (this.intIndividualsSumFitness / (float) this.intGenerationSize);
* Get worst fitness of all individuals in this generation
public int getIndividualWorstFitness()
return intIndividualWorstFitness;
* Get probability of mutation
* @return Probability of mutation of each chromosome of every individual in generation (in percents)
public int getMutationProbability()
return intMutationProbability;

Implementing a Set class

Could someone please show me an example of how to implement the Set Class?
Here's the code for the class:
* @(#)Set.java
package ds.util;
import java.util.*;
* A set is a collection that contains no duplicate elements; that is, sets contain
* no pair of elements obj1 and obj2 such that obj1.equals(obj2). As implied by
* its name, this interface models the mathematical set abstraction.
* The <tt>Set</tt> interface extends the <tt>Collection</tt> interface and
* places additional specification on the <tt>add</tt> method.
public interface Set<T> extends Collection<T>
 * Returns the number of elements in this set.
 * @return the number of elements in this set.
 int size();
 * Returns <tt>true</tt> if this set contains no elements.
 * @return <tt>true</tt> if this set contains no elements.
 boolean isEmpty();
 * Returns <tt>true</tt> if this set contains the specified element.
 * @param item element whose presence in this set is to be tested.
 * @return <tt>true</tt> if this set contains the specified element.
 boolean contains(Object item);
 * Returns an iterator over the elements in this set.
 * @return an <tt>Iterator</tt> positioned at an element in the set..
 Iterator<T> iterator();
 * Returns an array containing all of the elements in this set.
 * @return an array containing all of the elements in this set.
 Object[] toArray();
 // Modification Operations
 * Adds the specified element to this set if it is not already present.
 * If this set already contains the specified element, the call leaves
 * this set unchanged and returns <tt>false</tt>.
 * @param item element to be added to this set.
 * @return <tt>true</tt> if this set did not already contain the specified
 * element.
 boolean add(T item);
 * Removes the specified element from this set if it is present. Returns
 * <tt>true</tt> if the set contained the specified element.
 * @param item object to be removed from this set, if present.
 * @return true if the set contained the specified element.
 boolean remove(Object item);
 * Removes all of the elements from this set. This set will be empty after
 * this call returns.
 void clear();
}

What specific trouble are you having?
If we "show you an example of how to implement a Set," we're doing your homework for you. Most here won't do that, and with good reason.

Cisco Prime 2.2 Config Archive get Partial-Success

Good morning everyone!
I have a question regarding Cisco Prime Infrastructure 2.2 and Config Archive. Im trying to backup a configuration for an old WS-CBS3020-HPQ blade with IOS version 12.2(58)SE1 and im getting an error under "Fetch vlan" that says :
Couldn't able to collect VLAN on the device. TFTP server not accessible from device.
Im not sure what this means? It gets partial-success, but the error message worries me. Im not able to find anything in the logs or by searching for the error code. Anyone have any idea where to look? The credential is correct, i tripple checked :)

I tried using the "tftp-server flash:" command, but didnt help. Im also seeing this problem with a couple of Cisco 3750x switches.

How to implement a java class

dear friends
i use forms6i server and oracle 9i server edition,under windows 2000 server
i try to implement a java class for a bean area. i do the following :
from the property palette i write the class name in implementaion class property . the class name is 'arc.class' and it is located in <oracle_home>/forms60/java
but the fellowing error appears
frm-13008 cannot find javabean with name 'arc.class'
would any one help please

Dear Grant Ronald
thank you very much for helping me . now i undersatand how to implement a class. but i have another question ,and i wish you ccould help me .
i try to import a java class, i do the following:
From the program menue i choose Import Java Class
but the following error appears
(pde-uji001 faild to create JVM)
by the way i use forms6i server and oracle 9i server under windows 2000 server
thanks in advance
tarek

TableSorter class never ever calls getModelToView()

I am using TableSorter class to sort tables. There is a piece of optimization code that never gets called: getModelToView(). For that method to be called a check is performed (modelToView != null). But modelToView is assigned inside that method! This causes a single cell update to trigger fireTableDataChanged(). Is that a known bug? Is there a fix?

I see what you mean.. you're right, it seems like modelToView will always be null.
I found another bug.. when mouse is clicked on the tableheader area where it doesn't have any column (when table is stretched it can have no column there) , columnModel.getColumnIndexAtX(e.getX()) returns -1, and if the check there is not added, then get a runtime out-of-bounds exception on the following line columnModel.getColumn(viewColumn).getModelIndex() because viewColumn is set to -1. See the code snippet below:
public void mouseClicked(MouseEvent e) {
            JTableHeader h = (JTableHeader) e.getSource();
            TableColumnModel columnModel = h.getColumnModel();
            int viewColumn = columnModel.getColumnIndexAtX(e.getX());
            if(viewColumn == -1) { // added!
                return;
            int column = columnModel.getColumn(viewColumn).getModelIndex();

LMS RME Config Mgmt Partially Successful

Hi,
From the various posts around here, I read that, in Config Mgmt, LMS connects through Telnet or SSH to devices, then uses TFTP to send configs.
In my network, I run SSH on my devices. Device Credentials Verification Job is successful for sw1 and sw2, which by the way are Catalyst 4948. However, in Config Mgmt, they are displayed as Partially Successful.
I wanted to test manually by connecting to the device through SSH then issuing TFTP copy. I found that "vlan.dat" is not under Flash; it's under Cat4000_flash.
So how do I tell LMS to fetch under Cat4000_flash instead of Flash, for this model of switches?
thanks

Have a look at this thread:
https://supportforums.cisco.com/thread/2087520
Don't worry about the cat4000_flash. RME knows to use that file system. So make sure that manual TFTP copy works.

Is there any way an iPhone app developer can implement low power class 3 Bluetooth?

Is there any way an iPhone app developer can implement low power class 3 Bluetooth?

Ah-HA! I knew there had to be a way!
Not quite the same in 10.6, but close enough to find it:
It's iTunes>apps, not iTunes>iPhone>apps. I didn't realize there were different windows.
Not double-click, but control-click. Close enough.
Easy-Peasy, now that you showed me how.
Thanks, Barry.
--Gil

[svn] 4130: Remove @private from IXMLNotifiable. as since it is implemented by another class and should appear in ASDoc

Revision: 4130
Author: [email protected]
Date: 2008-11-18 07:36:15 -0800 (Tue, 18 Nov 2008)
Log Message:
Remove @private from IXMLNotifiable.as since it is implemented by another class and should appear in ASDoc
QE Notes: None
Doc Notes: None
Bugs: -
Modified Paths:
flex/sdk/trunk/frameworks/projects/framework/src/mx/utils/IXMLNotifiable.as

My output is listed below. Can I solve the issue by replacing the following line in /etc/postfix/main.cf?
mydestination = $myhostname,localhost.$mydomain,localhost
with
mydestination = $mydomain,localhost.$mydomain,localhost
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
debugpeerlevel = 2
enableserveroptions = yes
html_directory = no
inet_interfaces = all
mail_owner = _postfix
mailboxsizelimit = 0
mailbox_transport = cyrus
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
messagesizelimit = 10485760
mydestination = $myhostname,localhost.$mydomain,localhost
mydomain = domain.com
mydomain_fallback = localhost
myhostname = pinky.domain.com
newaliases_path = /usr/bin/newaliases
queue_directory = /private/var/spool/postfix
readme_directory = /usr/share/doc/postfix
relayhost =
sample_directory = /usr/share/doc/postfix/examples
sendmail_path = /usr/sbin/sendmail
setgid_group = _postdrop
smtpdpw_server_securityoptions = gssapi
smtpdrecipientrestrictions = permitsasl_authenticated,permit_mynetworks,reject_unauthdestination,permit
smtpdsasl_authenable = yes
smtpduse_pwserver = yes
unknownlocal_recipient_rejectcode = 550
virtualmailboxdomains = hash:/etc/postfix/virtual_domains
virtual_transport = lmtp:unix:/var/imap/socket/lmtp

Implementation of TableSorter class partially successful

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