How to connect two JComponents with line

Hi,
I have GUI which draws different shapes(ovals, rectangles etc) as JComponants on a JPanel . I need to be able to select by clicking a JComponant and connect it to another JComponant on the JPanel. Once I haved established a connection I would like to be able to move the connected JComponants yet maintain the connection. Can you please look at my code and advise as to how this can be achieved.
Thanks.
LineSelector selector = new LineSelector(windowPanel);
windowPanel.addMouseListener(selector);
class windowPanel extends JPanel
ArrayList lines;
public windowPanel()
lines = new ArrayList();
protected void paintComponent(Graphics g)
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
g2.setColor(Color.white);
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
for(int j = 0; j < lines.size(); j++)
g2.draw((Line2D) lines.get(j));
protected void addConnectingLine(Component c1, Component c2)
Rectangle r1 = c1.getBounds();
Rectangle r2 = c2.getBounds();
lines.add(new Line2D.Double(r1.getCenterX(), r1.getCenterY(),
r2.getCenterX(), r2.getCenterY()));
repaint();
class LineSelector extends MouseAdapter
windowPanel conPanel;
Component firstSelection;
boolean firstComponentSelected;
public LineSelector(windowPanel cp)
conPanel = cp;
public void mousePressed(MouseEvent e)
Point p = e.getPoint();
Component[] c = conPanel.getComponents();
Rectangle rv = new Rectangle();
for(int j = 0; j < c.length; j++)
c[j].getBounds(rv);
if(rv.contains(p))
if(firstComponentSelected)
conPanel.addConnectingLine(c[j], firstSelection);
firstComponentSelected = false;
else
firstSelection = c[j];
firstComponentSelected = true;
break;
}

Hi,
these threads can help you
http://forum.java.sun.com/thread.jspa?threadID=488823&messageID=2292924
http://forum.java.sun.com/thread.jspa?forumID=20&threadID=607264
L.P.

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hi i m new to hibernate..
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//********************2nd getter setter file is:***********************
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String journal;
String publisher;
String edition;
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* To change this template, choose Tools | Templates
* and open the template in the editor.
package hibernate.example;
import hibernate.example.Acctinfo;
import hibernate.example.Catalog;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import org.hibernate.Query;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
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Object[] row = (Object[]) it.next();*/
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          catalog.setPublisher("indiabulls");
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          session =sessionFactory.openSession();
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          catalog.setId(3);
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          session.flush();
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          accinfo.setAccount("MANOJ1");
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          list.add(accinfo);
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          catalog.setJournal("india");
          catalog.setPublisher("indiabulls");
          catalog.setEdition("ist");
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory name="session">
<property name="hibernate.dialect">org.hibernate.dialect.Oracle9Dialect</property>
<property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:@172.16.31.25:1521:BOMBAY</property>
<property name="hibernate.connection.username">mumbai</property>
<property name="hibernate.connection.password">mumbai123</property>

<property name="connection.autocommit">true</property>
<property name="dialect">org.hibernate.dialect.OracleDialect</property>

<mapping resource="Catalog.hbm.xml"/>
</session-factory>
</hibernate-configuration>
**********************error i m facing is :************************
0 [main] WARN net.sf.ehcache.config.Configurator - No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/C:/Documents%20and%20Settings/d.poonam/Desktop/hibernate/lib/ehcache-1.1.jar!/ehcache-failsafe.xml
1188 [main] WARN org.hibernate.impl.SessionFactoryObjectFactory - Could not bind factory to JNDI
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
     at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
     at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
     at javax.naming.InitialContext.getURLOrDefaultInitCtx(Unknown Source)
     at javax.naming.InitialContext.getNameParser(Unknown Source)
     at org.hibernate.util.NamingHelper.bind(NamingHelper.java:52)
     at org.hibernate.impl.SessionFactoryObjectFactory.addInstance(SessionFactoryObjectFactory.java:90)
     at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:247)
     at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1043)
     at hibernate.example.CatalogClient.<init>(CatalogClient.java:24)
     at hibernate.example.CatalogClient.main(CatalogClient.java:27)
please help me out....
thanks in advance..
if u know how to connect two tables plz let me know..
its urgent....

I made this work with MySQL. Adapt to your situation as needed. - %
package hibernate.model;
import hibernate.util.HibernateUtils;
import hibernate.model.Catalog;
import hibernate.model.Account;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Session;
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import java.text.NumberFormat;
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   private int balance;
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      this(null, balance);
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      this.id = id;
      this.balance = balance;
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      return id;
   private void setId(Long id)
      this.id = id;
   public int getBalance()
      return balance;
   private void setBalance(int balance)
      this.balance = balance;
   public boolean equals(Object o)
      if (this == o)
         return true;
      if (!(o instanceof Account))
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      Account account = (Account) o;
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      int result;
      result = (id != null ? id.hashCode() : 0);
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<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
      "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
      "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="hibernate.model" default-access="field" default-lazy="true">
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      <id name="id" column="account_id">
         <generator class="native"/>
      </id>
      <property name="balance" column="balance"/>
   </class>
</hibernate-mapping>
package hibernate.model;
import java.io.Serializable;
import java.util.Set;
import java.util.HashSet;
import java.util.Collections;
public class Catalog implements Serializable
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   private String title;
   private Set<Account> accounts;
   public Catalog()
      this(null, "", Collections.EMPTY_SET);
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      this(null, title, Collections.EMPTY_SET);
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      this.title = title;
      this.accounts = new HashSet<Account>(accounts);
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      return id;
   private void setId(Long id)
      this.id = id;
   public String getTitle()
      return title;
   private void setTitle(String title)
      this.title = title;
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      return accounts;
   private void setAccounts(Set<Account> accounts)
      this.accounts = accounts;
   public void addAccount(Account account)
      this.getAccounts().add(account);
   public void removeAccount(Account account)
      this.getAccounts().remove(account);
   public boolean equals(Object o)
      if (this == o)
         return true;
      if (!(o instanceof Catalog))
         return false;
      Catalog catalog = (Catalog) o;
      return !(id != null ? !id.equals(catalog.id) : catalog.id != null);
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      return (id != null ? id.hashCode() : 0);
   public String toString()
      return new StringBuilder().append("Catalog{").append("id=").append(id).append(", title='").append(title).append('\'').append(", accounts=").append(accounts).append('}').toString();
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
      "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
      "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="hibernate.model" default-access="field" default-lazy="true">
   <class name="Catalog" table="catalogs">
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</hibernate-mapping>
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<hibernate-configuration>
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      <property name="order_updates">false</property>
      <property name="hbm2ddl.auto">create-drop</property>
      <property name="current_session_context_class">thread</property>
      <mapping resource="hibernate/persistence/hibernate/Account.hbm.xml"/>
      <mapping resource="hibernate/persistence/hibernate/Catalog.hbm.xml"/>
     </session-factory>
</hibernate-configuration>

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Hi elishacuthbert.
Try disabling the start-up items in your computer to troubleshoot the issue. Follow the steps mentioned below:
Right click on the Taskbar > Task Manager > Start-up > Select the applications > Disable.
Note: If my post answers your question, please mark it as an "Accepted Solution."

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_*EDIT*_
*Ok i flashed QR code with my phone and is connecter now :)*
Moderators please close thead
Message was edited by: junioreks

>Ok i flashed QR code with my phone and is connecter now :)
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