1 Reply Latest reply on Nov 2, 2011 1:28 PM by nathandennis

Seam Persistence Help!

fygiof Nov 1, 2011 2:42 PM

Hi, i am a beginner of seam. I make a page that list records, create a new record and update selected record. Creating and listing records works fine but updating doesn't.

Please help me what is the wrong with this code given below

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package com.entity;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

import org.hibernate.validator.Length;

@Entity
@Table(name = "AUTHOR", schema = "PUBLIC")
//@Where(clause = "Deleted=0")
public class Author implements Serializable {

     /**
      *
      */
     private static final long serialVersionUID = 1L;
     @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "id", unique = true, nullable = false)
     private Long id;
     @Length(max = 20)
     private String name;
     @Length(max = 20)
     private String surname;

     public Author(){}

     public Author(Long id) {
          super();
          this.id = id;
     }

     public Long getId() {
          return id;
     }

     public void setId(Long id) {
          this.id = id;
     }

     public String getName() {
          return name;
     }

     public void setName(String name) {
          this.name = name;
     }

     public String getSurname() {
          return surname;
     }

     public void setSurname(String surname) {
          this.surname = surname;
     }
}
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package com.home;

import javax.persistence.EntityManager;

import oracle.jdbc.driver.DMSFactory;

import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.framework.EntityHome;

import com.entity.Author;

@Name("authorHome")
public class AuthorHome extends EntityHome<Author> {

     private static final long serialVersionUID = 1L;
     @In
     EntityManager entityManager;

     public EntityManager getEntityManager() {
          return entityManager;
          }

     @Override
     public Class<Author> getEntityClass() {
          return Author.class;
     }

     public String update() {
          String value = super.update();
          entityManager.flush();
          return value;
     }

     @Override
     public void setId(Object id) {
          super.setId(id);
     }

     public String persist() {
          String value = super.persist();
          entityManager.flush();
          return value;
     }

     public void reload() {
          if (isManaged()) {
               entityManager.refresh(getInstance());
          }
     }
}
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package com.list;

import java.util.List;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.datamodel.DataModel;
import org.jboss.seam.annotations.datamodel.DataModelSelection;

import com.entity.Author;
import com.home.AuthorHome;

@Name("authorList")
@Scope(ScopeType.CONVERSATION)
public class AuthorList extends com.session.AuthorList {

     /**
      *
      */
     private static final long serialVersionUID = 1L;

     @DataModel
     List<Author> dmAuthor;

     @DataModelSelection
     Author dmsAuthor;

     @In(create = true)
     AuthorHome authorHome;

     private boolean allSelected;

     public void initHome() {
          authorHome.clearInstance();
          authorHome.setId(null);
     }

     @Factory("dmAuthor")
     public void initializeDataModel() {
          authorHome.reload();
          refresh();
          dmAuthor = getResultList();
     }

     public void assignSelected() {
          authorHome.setId(dmsAuthor.getId());
     }

     public void deleteSelected() {
          for (Author author : dmAuthor)
               //if (author.isSelected()) {
                    authorHome.setInstance(author);
                    authorHome.remove();

               //}
          initializeDataModel();
          allSelected = false;
     }


     public boolean isAllSelected() {
          return allSelected;

     }

     public void setAllSelected(boolean allSelected) {
          this.allSelected = allSelected;

     }

     public void checkSelected() {
          //for (Author author : dmAuthor)
               //author.setSelected(allSelected);
     }
}
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package com.session;

import java.util.Arrays;
import org.jboss.seam.framework.EntityQuery;

import com.entity.Author;

public class AuthorList extends EntityQuery<Author>
{

     /**
      *
      */
     private static final long serialVersionUID = 1L;
     private static final String EJBQL = "select author from Author author";
     private static final String[] RESTRICTIONS = {};

     private Author author = new Author();

     public AuthorList()
    {
        setEjbql(EJBQL);
        setRestrictionExpressionStrings(Arrays.asList(RESTRICTIONS));
    }

     public Author getAuthor() {
          return author;
     }
}
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<f:view xmlns="http://www.w3.org/1999/xhtml"
     xmlns:h="http://java.sun.com/jsf/html"
     xmlns:f="http://java.sun.com/jsf/core"
     xmlns:ui="http://java.sun.com/jsf/facelets"
     xmlns:richfaces="http://richfaces.ajax4jsf.org/rich"
     xmlns:ajax="https://ajax4jsf.dev.java.net/ajax"
     xmlns:a4j="http://richfaces.org/a4j"
     xmlns:rich="http://richfaces.org/rich"
     xmlns:s="http://jboss.com/products/seam/taglib"
     xmlns:p="http://primefaces.prime.com.tr/ui">

     <h:form>
          <rich:panel styleClass="formPanel">
               <f:facet name="header">Yazar Listesi</f:facet>
               <rich:extendedDataTable value="#{dmAuthor}" height="400px"
                    width="100%" rows="15" id="tblAuthor" var="_author">
                    
                    <rich:column label="Ad" width="100">
                         <f:facet name="header">Ad</f:facet>
                         <h:outputText value="#{_author.name}" />
                    </rich:column>
                    <rich:column label="Soyad" width="150">
                         <f:facet name="header">Soyad</f:facet>
                         <h:outputText value="#{_author.surname}" />
                    </rich:column>
                    <rich:column>
                         <a4j:commandButton image="/images/i-edit.png"
                              reRender="panelAuthor" oncomplete="applyMasks();"
                              action="#{authorList.assignSelected()}">
                         </a4j:commandButton>
                    </rich:column>

               </rich:extendedDataTable>
               <a4j:commandButton value="Sil" image="/images/b-delete.png"
                    onclick="if(!confirm('Seçilenler silinecektir. Bu işlemi yapmak istediğinize emin misiniz?'))return false;"
                    action="#{authorList.deleteSelected}" reRender="tblAuthor,growlForm">
                    <s:conversationId />
               </a4j:commandButton>
          </rich:panel>
          <rich:panel id="panelAuthor" styleClass="formPanel">
               <h:panelGrid columns="2" columnClasses="formLabel, formInput">

                    <h:outputLabel value="Ad" for="txtName" />
                    <h:inputText value="#{authorHome.instance.name}" styleClass="input"
                         id="txtName" />

                    <h:outputLabel value="Soyad" for="txtSurname" />
                    <h:inputText value="#{authorHome.instance.surname}"
                         styleClass="input" id="txtSurname" />

                    <a4j:commandButton image="/images/b-save.png"
                         action="#{authorHome.persist}">
                         <a4j:support event="oncomplete" action="#{authorList.initHome()}"
                              reRender="tblAuthor,txtName,txtSurname" />
                    </a4j:commandButton>
                    <a4j:commandButton image="/images/b-update.png"
                         action="#{authorHome.update}">
                         <a4j:support event="oncomplete" action="#{authorList.initHome()}"
                              reRender="tblAuthor,txtName,txtSurname" />
                    </a4j:commandButton>

               </h:panelGrid>
          </rich:panel>
     </h:form>
</f:view>

1. Re: Seam Persistence Help!

nathandennis Nov 2, 2011 1:28 PM (in response to fygiof)

post error log
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