CRUD by Hibernate in MySql.

[Mandar Khire]

As per this...
I am trying to learn hibernate with mysql...i am not expert of java or sql.
I am using various forums/books/tutorials/examples etc but its hard to understand for me or hard to find out what i needed currently...

I create 1 table within mysql database named temp. In temp i create 1 table named player which contain 3 columns playerid(this is pk,NN,AI)(int),payer_name(Varchar),country_name(Varchar).

I create 1 project name Exaample_hiber using eclipse helios with hibernate plug-in
i create 3 java class files in respected 3 folders in src folder which name's Country_Club-->main_app.java, Country_Management-->hiber_management.java, Country_Player-->player.java & player.hbm.xml
main_app.java as follows:-

package Country.Club;
import java.awt.Rectangle;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import Country.Management.hiber_management;
import Country.Player.player;
public class main_app extends JFrame {
	private static final long serialVersionUID = 1L;
	private JPanel jContentPane = null;
	private JButton showjButton = null;
	private JButton EnterjButton = null;
	private JTextField name_jTextField = null;
	private JLabel name_jLabel = null;
	private JTextField countryname_jTextField = null;
	private JLabel country_jLabel = null;
	private static String QUERY_BASED_ON_player_NAME = "from player a where a.player_name like '";  //  @jve:decl-index=0:
    private static String QUERY_BASED_ON_country_NAME = "from player a where a.country_name like '";  //  @jve:decl-index=0:
	private void runQueryBasedOnplayerName() {
        executeHQLQuery(QUERY_BASED_ON_player_NAME + name_jTextField.getText() + "%'");
        
	}
	private void runQueryBasedOncountryName() {
        executeHQLQuery(QUERY_BASED_ON_country_NAME + countryname_jTextField.getText() + "%'");
    }
    private void executeHQLQuery(String myhql) {
    	 try {
             Session session = hiber_management.getSessionFactory().openSession();
             session.beginTransaction();
             Query q = session.createQuery(myhql);
             @SuppressWarnings("rawtypes")
			List result =q.list();
             System.out.println(result);             
             session.getTransaction().commit();
         } catch (HibernateException he) {
             he.printStackTrace();
         }
	}    
	private JButton getShowjButton() {
		if (showjButton == null) {
			showjButton = new JButton();
			showjButton.setBounds(new Rectangle(323, 22, 94, 27));
			showjButton.setText("Show");
			showjButton.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					if (!name_jTextField.getText().trim().equals("")) {
			            runQueryBasedOnplayerName();
			            System.out.println();
			        } else if (!countryname_jTextField.getText().trim().equals("")) {
			            runQueryBasedOncountryName();
			     
			        }
				}
			});
			
		}
		return showjButton;
	}
	private JButton getEnterjButton() {
		if (EnterjButton == null) {
			EnterjButton = new JButton();
			EnterjButton.setBounds(new Rectangle(320, 56, 98, 26));
			EnterjButton.setText("Enter");
			EnterjButton.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					try {
	    	            Session session = hiber_management.getSessionFactory().openSession();
	    	            session.beginTransaction();
    	     String player_name = name_jTextField.getText();
						String country_name = countryname_jTextField.getText();
	    	            player temp=new player(player_name,country_name);
	    	            temp.setplayerid(3);
	    	            temp.setplayer_name(name_jTextField.getText());
	    	            temp.setcountry_name(countryname_jTextField.getText());
	    			session.save(temp);	    	            
	    	            session.getTransaction().commit();
	    	        } catch (HibernateException he) {
	    	            he.printStackTrace();
	    	        } 
				}
			});
		}
		return EnterjButton;
	}
	private JTextField getName_jTextField() {
		if (name_jTextField == null) {
			name_jTextField = new JTextField();
			name_jTextField.setBounds(new Rectangle(101, 27, 159, 20));
		}
		return name_jTextField;
	}
	private JTextField getCountryname_jTextField() {
		if (countryname_jTextField == null) {
			countryname_jTextField = new JTextField();
			countryname_jTextField.setBounds(new Rectangle(108, 59, 150, 24));
		}
		return countryname_jTextField;
	}
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				main_app thisClass = new main_app();
				thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
				thisClass.setVisible(true);
			}
		});
	}
	public main_app() {
		super();
		initialize();
	}
	private void initialize() {
		this.setSize(454, 360);
		this.setContentPane(getJContentPane());
		this.setTitle("JFrame");
	}
	private JPanel getJContentPane() {
		if (jContentPane == null) {
			country_jLabel = new JLabel();
			country_jLabel.setBounds(new Rectangle(17, 65, 68, 25));
			country_jLabel.setText("Country");
			name_jLabel = new JLabel();
			name_jLabel.setBounds(new Rectangle(15, 28, 69, 24));
			name_jLabel.setText("Name");
			jContentPane = new JPanel();
			jContentPane.setLayout(null);
			jContentPane.add(getShowjButton(), null);
			jContentPane.add(getEnterjButton(), null);
			jContentPane.add(getName_jTextField(), null);
			jContentPane.add(name_jLabel, null);
			jContentPane.add(getCountryname_jTextField(), null);
			jContentPane.add(country_jLabel, null);
		}
		return jContentPane;
		}
}  //  @jve:decl-index=0:visual-constraint="10,10"

player.java file contain following code:-

package Country.Player;
public class player implements java.io.Serializable {
	private static final long serialVersionUID = 1L;
	private Integer playerid;
    private String player_name;
    private String country_name;
    public player (String player_name, String country_name) {
        this.player_name = player_name;
        this.country_name = country_name;
     }
    public Integer getplayerid() {
        return this.playerid;
    }
    public void setplayerid(Integer playerid) {
        this.playerid= playerid;
    }
    public String getplayer_name() {
        return this.player_name;
    }
    public void setplayer_name(String player_name) {
        this.player_name = player_name;
    }
    public String getcountry_name() {
        return this.country_name;
    }    
    public void setcountry_name(String country_name) {
        this.country_name = country_name;
    }
}

hiber_management.java file contian following code:-

package Country.Management;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
public class hiber_management {
	 private static final SessionFactory mysessionFactory;
	    static {
	        try {
	            // Create the SessionFactory from standard (hibernate.cfg.xml) 
	            // config file.
	            mysessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
	        } catch (Throwable ex) {
	            // Log the exception. 
	            System.err.println("Initial SessionFactory creation failed." + ex);
	            throw new ExceptionInInitializerError(ex);
	        }
	    }
	    public static SessionFactory getSessionFactory() {
	        return mysessionFactory;
	    }
}

player.hbm.xml which i create by using wizard as follows:-

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated May 14, 2012 4:27:12 PM by Hibernate Tools 3.4.0.CR1 -->
<hibernate-mapping>
    <class name="Country.Player.player" table="PLAYER">
        <id name="playerid" type="java.lang.Integer" access="field">
            <column name="PLAYERID" />
            <generator class="assigned" />
        </id>
        <property name="player_name" type="java.lang.String" access="field">
            <column name="PLAYER_NAME" />
        </property>
        <property name="country_name" type="java.lang.String" access="field">
            <column name="COUNTRY_NAME" />
        </property>
    </class>
</hibernate-mapping>

In src i create one more xml named hibernate.cfg.xml as follows:-

<?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>
    <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/temp</property>
    <property name="hibernate.connection.username">root</property>
     <property name="hibernate.connection.password">test786</property>
    <property name="hibernate.show_sql">true</property>
    <property name="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</property>
    <property name="hibernate.connection.pool_size">500</property>
    <property name="hibernate.connection.autocommit">true</property>
    <property name="hibernate.jdbc.use_streams_for_binary">true</property>
    <mapping resource="Country/player/player.hbm.xml"/>
  </session-factory>
</hibernate-configuration>

Now after run program i try to put 1 character in each text fields & try to save it in table...
i got error

Hibernate: insert into PLAYER (PLAYER_NAME, COUNTRY_NAME, PLAYERID) values (?, ?, ?)
org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:253)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:237)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:141)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
at Country.Club.main_app$2.actionPerformed(main_app.java:98)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.sql.BatchUpdateException: Unknown column 'COUNTRY_NAME' in 'field list'
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1103)
at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:853)
at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:246)
... 44 more

For learning purpose anybody help me how in small program i can implement CRUD (Create, Retrieve, Update, Delete) in this program...
Thanks in advance...

[William P O'Sullivan]

Welcome,

A few Things, your error is: Unknown column 'COUNTRY_NAME' in 'field list'

You should not be defining attributes with the "_" character, instead use countryName, and getCountryName() setCountryName().

WP

[Mandar Khire]

William P O'Sullivan,

A few Things, your error is: Unknown column 'COUNTRY_NAME' in 'field list'

What a Hawk-eye you have...actually my stupid mistake...
Now i can enter table entries by text fields ....
So update complete...

You should not be defining attributes with the "_" character, instead use countryName, and getCountryName() setCountryName().

Is there any rule for that?

Now i tried this from yesterday
in main_app.java

package Country.Club;
import java.awt.Rectangle;
import java.util.List;
import java.util.Vector;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableModel;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import Country.Management.hiber_management;
import Country.Player.player;

public class main_app extends JFrame {
	private static final long serialVersionUID = 1L;
	private JPanel jContentPane = null;
	private JButton showjButton = null;
	private JButton EnterjButton = null;
	private JTextField name_jTextField = null;
	private JLabel name_jLabel = null;
	private JTextField countryname_jTextField = null;
	private JLabel country_jLabel = null;
	JTable resultTable = new javax.swing.JTable();
	 JScrollPane jScrollPane1= new JScrollPane();
	static String k;
	static String l;
	static int id;
    private static String QUERY_BASED_ON_player_NAME = "from player a where a.player_name like '";  //  @jve:decl-index=0:
    private static String QUERY_BASED_ON_country_NAME = "from player a where a.country_name like '";  //  @jve:decl-index=0:
    private void runQueryBasedOnplayerName() {
        executeHQLQuery(QUERY_BASED_ON_player_NAME + name_jTextField.getText() + "%'");
        
	}
	private void runQueryBasedOncountryName() {
        executeHQLQuery(QUERY_BASED_ON_country_NAME + countryname_jTextField.getText() + "%'");
    }
    private void executeHQLQuery(String myhql) {
    	 try {
             Session session = hiber_management.getSessionFactory().openSession();
             session.beginTransaction();
             Query q = session.createQuery(myhql);
             @SuppressWarnings("rawtypes")
	     List resultList =q.list();
	     displayResult(resultList);
             session.getTransaction().commit();
         } catch (HibernateException he) {
             he.printStackTrace();
         }
	}    
	private JButton getShowjButton() {
		if (showjButton == null) {
			showjButton = new JButton();
			showjButton.setBounds(new Rectangle(323, 22, 94, 27));
			showjButton.setText("Show");
			showjButton.addActionListener(new java.awt.event.ActionListener() {			
				public void actionPerformed(java.awt.event.ActionEvent evt) {
					getShowjButtonActionPerformed(evt);
				} });			
		}
		return showjButton;
	}
	private JButton getEnterjButton() {
		if (EnterjButton == null) {
			EnterjButton = new JButton();
			EnterjButton.setBounds(new Rectangle(320, 56, 98, 26));
			EnterjButton.setText("Enter");
			EnterjButton.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					try {
	    	            Session session = hiber_management.getSessionFactory().openSession();
	    	            session.beginTransaction();
    	                k = name_jTextField.getText();
			l = countryname_jTextField.getText();
	    	        id= 3;
			player temp=new player(k,l);
	    	            temp.setplayerid(id);
	    	            temp.setplayer_name(k);
	    	            temp.setplayer_country(l);
	    			    session.save(temp);	 
	    	            session.getTransaction().commit();
	    	            session.close();
	    	        } catch (HibernateException he) {
	    	            he.printStackTrace();
	    	        } 
				}
			});
		}
		return EnterjButton;
	}
	private JTextField getName_jTextField() {
		if (name_jTextField == null) {
			name_jTextField = new JTextField();
			name_jTextField.setBounds(new Rectangle(101, 27, 159, 20));
		}
		return name_jTextField;
	}
	private JTextField getCountryname_jTextField() {
		if (countryname_jTextField == null) {
			countryname_jTextField = new JTextField();
			countryname_jTextField.setBounds(new Rectangle(108, 59, 150, 24));
		}
		return countryname_jTextField;
	}
	public static void main(String[] args) {
		SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				main_app thisClass = new main_app();
				thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
				thisClass.setVisible(true);
			}
		});
	}	
	public main_app() {
		super();
		initialize();
	}
	private void initialize() {
		this.setSize(454, 360);
		this.setContentPane(getJContentPane());
		this.setTitle("JFrame");
		//System.out.println();
	}
	@SuppressWarnings({ "unchecked", "unused" })
	private void displayResult(@SuppressWarnings("rawtypes") List resultList) {
        Vector<String> tableHeaders = new Vector<String>();
        @SuppressWarnings("rawtypes")
		Vector tableData = new Vector();
        tableHeaders.add("PlayerId");
        tableHeaders.add("player_name");
        tableHeaders.add("player_country");
        for (Object o : resultList) {
            player p = (player) o;
            Vector<Object> oneRow = new Vector<Object>();
            oneRow.add(p.getplayerid());
            oneRow.add(p.getplayer_name());
            oneRow.add(p.getplayer_country());
            tableData.add(oneRow);
            System.out.println("This is victory =");
        }
        resultTable.setModel(new DefaultTableModel(tableData, tableHeaders));

    }
	  private void getShowjButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_queryButtonActionPerformed
	        if (!name_jTextField.getText().trim().equals("")) {
	            runQueryBasedOnplayerName();
	            System.out.println("1");
	        } else if (!countryname_jTextField.getText().trim().equals("")) {
	            runQueryBasedOncountryName();
	            System.out.println("2");
	        }
	    }
	private JPanel getJContentPane() {
		if (jContentPane == null) {
			country_jLabel = new JLabel();
			country_jLabel.setBounds(new Rectangle(17, 65, 68, 25));
			country_jLabel.setText("Country");
			name_jLabel = new JLabel();
			name_jLabel.setBounds(new Rectangle(15, 28, 69, 24));
			name_jLabel.setText("Name");
			jContentPane = new JPanel();
			jContentPane.setLayout(null);
			jContentPane.add(getShowjButton(), null);
			jContentPane.add(getEnterjButton(), null);
			jContentPane.add(getName_jTextField(), null);
			jContentPane.add(name_jLabel, null);
			jContentPane.add(getCountryname_jTextField(), null);
			jContentPane.add(country_jLabel, null);
			jContentPane.add(jScrollPane1);
			resultTable.setModel(new javax.swing.table.DefaultTableModel(
			            new Object [][] {
			                {null, null, null, null}
			            },
			            new String [] {
			                "Title 1", "Title 2", "Title 3", "Title 4"
			            }
			        ));			      
			       jScrollPane1.setViewportView(resultTable);  
                               jScrollPane1.setVisible(true); 
		}
		return jContentPane;
		}
}

By running this code i got error as follows:-

Hibernate: select player0_.PLAYERID as PLAYERID0_, player0_.PLAYER_NAME as PLAYER2_0_, player0_.player_country as player3_0_ from PLAYER player0_ where (player0_.PLAYER_NAME like 'a%' )
1
org.hibernate.InstantiationException: No default constructor for entity: Country.Player.player
at org.hibernate.tuple.PojoInstantiator.instantiate(PojoInstantiator.java:84)
at org.hibernate.tuple.PojoInstantiator.instantiate(PojoInstantiator.java:100)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.instantiate(AbstractEntityTuplizer.java:351)
at org.hibernate.persister.entity.AbstractEntityPersister.instantiate(AbstractEntityPersister.java:3606)
at org.hibernate.impl.SessionImpl.instantiate(SessionImpl.java:1275)
at org.hibernate.impl.SessionImpl.instantiate(SessionImpl.java:1264)
at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1299)
at org.hibernate.loader.Loader.getRow(Loader.java:1206)
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:580)
at org.hibernate.loader.Loader.doQuery(Loader.java:701)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
at org.hibernate.loader.Loader.doList(Loader.java:2220)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
at org.hibernate.loader.Loader.list(Loader.java:2099)
at org.hibernate.hql.classic.QueryTranslatorImpl.list(QueryTranslatorImpl.java:912)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at Country.Club.main_app.executeHQLQuery(main_app.java:59)
at Country.Club.main_app.runQueryBasedOnplayerName(main_app.java:45)
at Country.Club.main_app.getShowjButtonActionPerformed(main_app.java:201)
at Country.Club.main_app.access$0(main_app.java:199)
at Country.Club.main_app$1.actionPerformed(main_app.java:76)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

[Mandar Khire]

I got my self answer

No default constructor for entity: Country.Player.player

So i write it down ..then program work smoothly...
Now new question arise that By entering value in textfield i try to search it into db & by resultlist i got display in table...
instead of that can i do it without any search i should got values from table in some integers like a,b,c...
I think for that something should be change in following code...

 private static String QUERY_BASED_ON_Manufactorer = "from product a where a.Manufactorer like '";
 private void runQueryBasedOnManufactorer() {
executeHQLQuery(QUERY_BASED_ON_Manufactorer + ManufactorerTextField.getText() + "%'");
	    }

What "%'" does in above code? i think it use for comparing with resultlist value?