Abhishek Reddy

I am not sure, also i am new to the file server.
How easy to setup the file server on the network ?
Any other alternatives to file server.

We are using a multi node environment
We are storing the files in a tomcat server.
first user when accessed the application directed to node one and he uploaded the file. the file sits in the tomcat server (T1)
Second user when accessed the application directed to node two and uploaded the file. the file sits in the tomcat server (T2)
first user when accessed the application again directed to node two and the user not able to see the uploaded file as it is there in the node one.

How to handle these situations ?
How to sync files acorss nodes.
what is the best way to implement this requirement ?
do we need to use central file repositories ? Please suggest some examples .

Need your thoughts and inputs. thanks in advance.

Hello Tim,

I have one more question for you.

When i click on the modal panel link, the current page is getting refreshed. Inside the modalPanel window, I have save and close button...when I click either of the buttons backend page(modalPanel calling page) is getting refreshed. How to stop refreshing the backend page (modalPanel calling page) ?

Thanks,
Abhishek

thanks for the help, its working now.

Thanks for the reply,

I did the way you have suggested, but failed.... below is the code

<ui:composition xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:c="http://java.sun.com/jstl/core" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:s="http://jboss.com/products/seam/taglib" xmlns:a4j="http://richfaces.org/a4j" xmlns:rich="http://richfaces.org/rich" xmlns="http://www.w3.org/1999/xhtml" version="2.0"> <f:view> <h:form id="loginForm"> <table> <tr><td> <h:outputText value="User Name"/></td><td> <h:inputText value="#{user.username}" id="username" /></td> <td> <h:message for="username" id="usernameError"/> </td> <td> <a4j:commandLink onclick="javascript:Richfaces.showModalPanel('myModalPanel');">Show Modal Panel</a4j:commandLink> </td> </tr> <tr> <td><h:outputText value="Password"/></td> <td><h:inputSecret value="#{user.password}" id="password" /></td> <td><h:message for="password" id="passwordError"/></td> </tr> <tr><td colspan="2" align="center"> <h:commandButton action="#{loginAction.login}" value="Login"/> </td></tr> </table> </h:form> </f:view> <f:view> <ui:include src="/modalPanel.xhtml"></ui:include> </f:view> </ui:composition>

modalPanel.xhtml
<ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:rich="http://richfaces.org/rich" xmlns:a4j="http://richfaces.org/a4j"> <rich:modalPanel id="myModalPanel"> <f:facet name="header"> <h:outputLabel value="123"/> </f:facet> From Modal Panel </rich:modalPanel> </ui:composition>

The above code is not working, could you please tell me where I went wrong ?

Thanks

Hi All,

I am new to JSF, I need help in invoking rich:modalPanel from another page ?

For example:
Consider Page1.xhtml
In the above page, I have to provide a link somewhere in the middle of the form which popups the modalPanel. This modalPanel is in another Page (say modalPage.xhtml)

The modalPanel content should be in a different page as it is needed in the multiple pages of the application.

Note: This modalPanel has another form which takes some inputs from the user.

I have used <ui:include> tag to include the content of the modelPanel.xhtml and used the below code to invoke the modalPanel (in Page1.xhtml), but it is not working.

<a href="javascript:Richfaces.showModalPanel('modalPanelID')">Display Modal Panel</a>

I think it is not finding the id 'modalPanelID' of rich:modalPanel tag which is present in another page, but not sure about that.

Please provide your thoughts.

Thanks
Abhishek

Thanks Bill, for the information, i will go through the links

Let us consider employee obj is there in cache (Session level cache). An external appln. has updated the employee object which is there in session, now how can I make sure that objects in cache are always in sync with database ?

Please provide your thoughts on this.
Do I need to follow any design pattern here ?

Thanks,
Abhishek

How to print windings characters in pdf using itext ?


How to print content of different fonts in pdf ?

thanks Mr.David Newton for the reply,

I didnot understand, can you please explain?

how the values added from two different browsers can be seen in either of the browsers? whats happening internally in the struts2.0 framework?

here is the code for struts.xml, Action and service class

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <constant name="struts.devMode" value="true" /> <constant name="struts.enable.DynamicMethodInvocation" value="false" /> <package name="wildcardmethodexample" extends="struts-default"> <!-- Whatever value is before Person for the name of the action will be the name of the method to call in class PersonAction. For example action createPerson will call a method named create in class PersonAction --> <action name="*Person" class="org.apache.struts.tutorials.wildcardmethod.action.PersonAction" method="{1}"> <result name="success">view.jsp</result> <result name="input">input.jsp</result> </action> </package> </struts>

package org.apache.struts.tutorials.wildcardmethod.action; import java.util.List; import org.apache.log4j.Logger; import org.apache.struts.tutorials.wildcardmethod.model.Person; import org.apache.struts.tutorials.wildcardmethod.service.PersonService; import com.opensymphony.xwork2.ActionSupport; public class PersonAction extends ActionSupport { //Create a Logger object private static final Logger logger = Logger.getLogger( PersonAction.class.getName() ); private static final long serialVersionUID = 1L; Person person ; int id ; List<Person> personList = PersonService.getPersons(); PersonService personService = new PersonService(); public String execute() throws Exception { logger.debug("In execute method"); return SUCCESS; } public String create() { logger.debug("In create method"); person = new Person(); return INPUT; } public String edit() { logger.debug("In edit method"); person = personService.getPerson(id); return INPUT; } public String saveOrUpdate() { System.out.println(personList); logger.debug("In saveOrUpdate method"); if ( person.getId() > -1 ) { personService.update(person) ; } else { personService.save(person); } personList = PersonService.getPersons() ; return SUCCESS; } public String delete() { logger.debug("In delete method"); personService.deletePerson(id); personList = PersonService.getPersons() ; return SUCCESS; } public Person getPerson() { return person; } public void setPerson(Person person) { this.person = person; } public List<Person> getPersonList() { return personList; } public void setPersonList(List<Person> personList) { this.personList = personList; } public int getId() { return id; } public void setId(int id) { this.id = id; } }


package org.apache.struts.tutorials.wildcardmethod.service; import java.util.ArrayList; import java.util.List; import java.util.NoSuchElementException; import java.util.SortedMap; import java.util.TreeMap; import org.apache.log4j.Logger; import org.apache.struts.tutorials.wildcardmethod.model.Person; public class PersonService { //Create a Logger object private static final Logger logger = Logger.getLogger( PersonService.class.getName() ); private static SortedMap<Integer, Person> people = new TreeMap<Integer, Person>(); static { people.put(0, new Person(0, "Steve", "Smith") ); people.put(1, new Person(1, "Sue", "Jones") ); } private static List<Person> personList = new ArrayList<Person>(); static{ for (Integer id : people.keySet() ) { personList.add( people.get(id)); } } public static List<Person> getPersons() { return personList; } public void save(Person person) { int newId = getNewId(); person.setId( newId ); people.put( newId, person); rebuildPersonList(); } private int getNewId() { int newId = 0; try { newId = people.lastKey() + 1; } catch (NoSuchElementException ex) { logger.info("Id value set to 0"); } return newId; } public void update(Person person) { Person tempPerson = people.get( person.getId() ); tempPerson.setFirstName( person.getFirstName() ); tempPerson.setLastName(person.getLastName() ); rebuildPersonList(); } public void deletePerson(int ID) { people.remove(ID); rebuildPersonList(); } public Person getPerson(int id) { return people.get(id); } public static void rebuildPersonList() { personList = new ArrayList<Person>(); for (Integer id : people.keySet() ) { personList.add( people.get(id)); } } }

package org.apache.struts.tutorials.wildcardmethod.model; public class Person { private int id; private String firstName; private String lastName; public Person() { this.id = -1; this.firstName = null; this.lastName = null; } public Person(int id, String firstName, String lastName) { super(); this.id = id; this.firstName = firstName; this.lastName = lastName; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } public String toString() { return firstName + " " + lastName; } }


Its an data entry appln. for performing CRUD operations on employee details
when i try to access the appln. from two different browsers, i can able to see the values added from either of the browsers. how this is happening?
are the added values are serialised internally?

please help me..........regarding this

Its working, i have to add cascade="all" in the employee mapping file

<set name="technologies" inverse="true" cascade="all"> <key column="name" not-null="true"></key> <one-to-many class="vo.EmpTech"/> </set>

Actually i tried for uni-directional mapping, but it forced to have bi-directional mapping.

I would like to know the reason to opt for bi-directional mapping.

i have modified the mapping file for emptechnologies

<hibernate-mapping> <class name="vo.EmpTech" table="emptechnologies"> <composite-id> <key-property name="name"> <column name="name" not-null="true"></column> </key-property> <key-property name="technology"> <column name="technology" not-null="true"></column> </key-property> </composite-id> [b]<many-to-one name="employees" column="name" not-null="true" insert="false" update="false"></many-to-one>[/b] </class> </hibernate-mapping>

Now, there are no errors, but failed to save the collection of childs in the database.

what is the workaround? did i miss anything?
do i need to iterate through each and every child in collection and save them separately?

hi everyone,

I created a one-to-many mapping between two table for example employee and emptechnologies, its like an employee knows many technologies

here are the respective mapping files
employee table

<hibernate-mapping> <class name="vo.Employeeform" table="employee"> <id name="name"> <column name="name"></column> </id> <property name="address"></property> <property name="gender" type="java.lang.Character"> <column name="gender" sql-type="character"></column> </property> <set name="technologies"> <key column="name" not-null="true" ></key> <one-to-many class="vo.EmpTech"/> </set> </class> </hibernate-mapping>

emptechnologies table

<hibernate-mapping> <class name="vo.EmpTech" table="emptechnologies"> <composite-id> <key-property name="name"> <column name="name" not-null="true"></column> </key-property> <key-property name="technology"> <column name="technology" not-null="true"></column> </key-property> </composite-id> </class> </hibernate-mapping>

Here is the access Code..........
public class TestingDAO { public TestingDAO() { // TODO Auto-generated constructor stub System.out.println("const............called"); } public void insert(Employeeform form) { // TODO Auto-generated method stub Session session=null; Transaction tx=null; try { System.out.println("configuring ..........."); Configuration cfg=new Configuration(); cfg.configure("hibernateconfig.xml"); System.out.println("building SF ..........."); SessionFactory sf=cfg.buildSessionFactory(); System.out.println("opening Session ..........."); session=sf.openSession(); System.out.println("beginning txn ..........."); tx=session.beginTransaction(); session.save(form); tx.commit(); } catch (HibernateException he) { // TODO: handle exception he.printStackTrace(); tx.rollback(); throw he; } finally{ session.close(); } } public static void main(String[] args) { TestingDAO dao=new TestingDAO(); Employeeform form=new Employeeform(); form.setName("test"); form.setAddress("test addr"); form.setGender(new Character('M')); System.out.println("gender ........."+form.getGender()); EmpTech empTech=new EmpTech(); empTech.setName(form.getName()); empTech.setTechnology("Java"); form.addTechnology(empTech); dao.insert(form); System.out.println("succ.........."); } }


When i try to run this code it is giving the following error......

error
INFO org.hibernate.cfg.HbmBinder - Mapping collection: vo.Employeeform.technologies -> emptechnologies org.hibernate.MappingException: Repeated column in mapping for entity: vo.EmpTech column: name (should be mapped with insert="false" update="false") at org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:670) at org.hibernate.mapping.PersistentClass.checkPropertyColumnDuplication(PersistentClass.java:692) at org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:714) at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:468) at org.hibernate.mapping.RootClass.validate(RootClass.java:215) at org.hibernate.cfg.Configuration.validate(Configuration.java:1135) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1320) at dao.TestingDAO.insert(TestingDAO.java:34) at dao.TestingDAO.main(TestingDAO.java:72) Exception in thread "main" java.lang.NullPointerException at dao.TestingDAO.insert(TestingDAO.java:51) at dao.TestingDAO.main(TestingDAO.java:72)

thanks for the reply,

iam using jsp for displaying data.

used jstl core tags for iterating through the list and displaying the same in the jsp