SelectOneMenu Problems

[rendellhb]

Can someone help me please?

I have one selectOneMenu on my page but it is not setting my object

my xhtml

<s:decorate id="modSubPrcField" template="../../layout/edit.xhtml">
        <ui:define name="label">#{msgs['label.modelo.subprocesso']}</ui:define>
        <h:selectOneMenu value="#{modeloAtributoControle.modSubPrc}" style="width:150px" required="true">
                <s:selectItems var="item" value="#{modeloAtributoControle.listaModSubPrc}" label="#{item.nmModSubPrc}" noSelectionLabel="Selecione..."/>
                <s:convertEntity/>
        </h:selectOneMenu>
</s:decorate>

and my control

@SuppressWarnings("serial")
@Name("modeloAtributoControle")
@Scope(ScopeType.CONVERSATION)
public class MantemModeloAtributoControle extends ControleBB<ModAtb, ModeloAtributoBO> {

@In (create = true, required = false)
        private ModSubPrc modSubPrc;

private List<ModSubPrc> listaModSubPrc;

public void setModSubPrc(ModSubPrc modSubPrc) {
                this.modSubPrc = modSubPrc;
        }

        public ModSubPrc getModSubPrc() {
                return modSubPrc;
        }

public void setListaModSubPrc(List<ModSubPrc> listaModSubPrc) {
     this.listaModSubPrc = listaModSubPrc;
}

public List<ModSubPrc> getListaModSubPrc() {
     listaModSubPrc = getModSubPrcBo().consultar();//Populate the List with objects ModSubPrc, this part is working
     return listaModSubPrc;
}

}

[monkeyden]

A couple things: 

Is ModSubPrc an @Entity?  If so, be sure there is a hashCode() and equals() method defined, so the converter has a way to compare.

Also, injecting modSubPrc might be interfering with the value binding of the selectOneMenu.

A third thing, which is a style matter: I generally only have accessors/mutators for submitted values and outject the lists, for controls like selectOneMenu, to conversation scope.  Cuts a bit of noise from the backing bean.

[rendellhb]

there is my entity

/*
 * ModSubPrc.java
 * 
 * Data de criação: 01/03/2011
 *
 * Desenvolvido por C1125600 - Tiago Trindade Stangarlin
 */
 
package br.com.bb.qgd.entidade;

import java.io.Serializable;

import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;

import org.jboss.seam.annotations.Name;

import br.com.bb.entidade.EntidadeBB;

/**
 * <p>Title: ModSubPrc</p>
 * <p>Description: Classe que representa a entidade persistente <code>MOD_SUB_PRC</code>.</p>
 * <br><b>Company:</b> QGD
 * @author C1125600 - Tiago Trindade Stangarlin
 * @version 1.0
 */
@javax.persistence.Entity
@javax.persistence.Table(schema="QGD", name = "MOD_SUB_PRC")
@Name("modSubPrc")
public class ModSubPrc implements EntidadeBB {

     /** Primary key. */
     @javax.persistence.Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @javax.persistence.Column(name = "CD_MOD_SUB_PRC")
     private java.lang.Integer id;

     /** Regular field. */
     @javax.persistence.Column(name = "NM_MOD_SUB_PRC", 
                                     nullable = false, 
                                     length = 50, 
                                     unique = false)
     private java.lang.String nmModSubPrc;

     @javax.persistence.Column(name = "QT_DD_PZ_PRVT", 
                                     nullable = false, 
                                     length = 5, 
                                     unique = false)
     private java.lang.Short qtDdPzPrvt;

     /** Association. */
     @javax.persistence.ManyToOne
     @javax.persistence.JoinColumns({
          @javax.persistence.JoinColumn(
               name = "CD_TIP_MOD_SUB_PRC"          )
     })
     private br.com.bb.qgd.entidade.TipModSubPrc tipModSubPrc;

     @javax.persistence.OneToMany(mappedBy = "modSubPrc")
     private java.util.Set<SubPrc> subPrcs;

     @javax.persistence.OneToMany(mappedBy = "modSubPrc")
     private java.util.Set<ModAtb> modAtbs;

     @javax.persistence.OneToMany(mappedBy = "modSubPrc")
     private java.util.Set<ModSubPrcModPrc> modSubPrcModPrcs;

     @javax.persistence.ManyToOne
     @javax.persistence.JoinColumns({
          @javax.persistence.JoinColumn(
               name = "CD_PRFL_ACSS"          )
     })
     private br.com.bb.qgd.entidade.PrflAcssTla prflAcssTla;

     /**
      * @return O valor do atributo id
      */
     public java.lang.Integer getId() {
          return id;
     }

     /**
      * @param cdModSubPrc atribui um valor ao atributo id
      */
     public void setId(java.lang.Integer cdModSubPrc) {
          this.id = cdModSubPrc;
     }

     /**
      * @return O identificador desta entidade
      *
      * @see br.com.politec.alp01.arquitetura.entidade.Entidade#getIdentificador()
      */
     public Serializable getIdentificador() {
          return getId();
     }
     
     /**
      * @return O valor do atributo nmModSubPrc
      */
     public java.lang.String getNmModSubPrc() {
          return nmModSubPrc;
     }

     /**
      * @param _nmModSubPrc atribui um valor 
      *           ao atributo nmModSubPrc
      */
     public void setNmModSubPrc(
               java.lang.String _nmModSubPrc) {
          this.nmModSubPrc = _nmModSubPrc;
     }
     
     /**
      * @return O valor do atributo qtDdPzPrvt
      */
     public java.lang.Short getQtDdPzPrvt() {
          return qtDdPzPrvt;
     }

     /**
      * @param _qtDdPzPrvt atribui um valor 
      *           ao atributo qtDdPzPrvt
      */
     public void setQtDdPzPrvt(
               java.lang.Short _qtDdPzPrvt) {
          this.qtDdPzPrvt = _qtDdPzPrvt;
     }
     
     /**
      * @return O valor do atributo tipModSubPrc;
      */
     public br.com.bb.qgd.entidade.TipModSubPrc getTipModSubPrc() {
          if(tipModSubPrc==null){
               tipModSubPrc = new TipModSubPrc();
          }
          return tipModSubPrc;
     }

     /**
      * @param _tipModSubPrc atribui um valor 
      *           ao atributo this.tipModSubPrc
      */
     public void setTipModSubPrc(
               br.com.bb.qgd.entidade.TipModSubPrc _tipModSubPrc) {
          this.tipModSubPrc = _tipModSubPrc;
     }
     
     /**
      * @return O valor do atributo subPrcs;
      */
     public java.util.Set<SubPrc> getSubPrcs() {
          return subPrcs;
     }

     /**
      * @param _subPrcs atribui um valor 
      *           ao atributo this.subPrcs
      */
     public void setSubPrcs(
               java.util.Set<SubPrc> _subPrcs) {
          this.subPrcs = _subPrcs;
     }
     
     /**
      * @return O valor do atributo modAtbs;
      */
     public java.util.Set<ModAtb> getModAtbs() {
          return modAtbs;
     }

     /**
      * @param _modAtbs atribui um valor 
      *           ao atributo this.modAtbs
      */
     public void setModAtbs(
               java.util.Set<ModAtb> _modAtbs) {
          this.modAtbs = _modAtbs;
     }
     
     /**
      * @return O valor do atributo modSubPrcModPrcs;
      */
     public java.util.Set<ModSubPrcModPrc> getModSubPrcModPrcs() {
          return modSubPrcModPrcs;
     }

     /**
      * @param _modSubPrcModPrcs atribui um valor 
      *           ao atributo this.modSubPrcModPrcs
      */
     public void setModSubPrcModPrcs(
               java.util.Set<ModSubPrcModPrc> _modSubPrcModPrcs) {
          this.modSubPrcModPrcs = _modSubPrcModPrcs;
     }
     
     /**
      * @return O valor do atributo prflAcssTla;
      */
     public br.com.bb.qgd.entidade.PrflAcssTla getPrflAcssTla() {
          if(prflAcssTla==null){
               prflAcssTla = new PrflAcssTla();
          }
          return prflAcssTla;
     }

     /**
      * @param _prflAcssTla atribui um valor 
      *           ao atributo this.prflAcssTla
      */
     public void setPrflAcssTla(
               br.com.bb.qgd.entidade.PrflAcssTla _prflAcssTla) {
          this.prflAcssTla = _prflAcssTla;
     }
     
     @Override
     public int hashCode() {
          // TODO Auto-generated method stub
          return super.hashCode();
     }
     
     @Override
     public boolean equals(Object obj) {
          // TODO Auto-generated method stub
          return super.equals(obj);
     }
     
}
 

I don´t use the object ModSubPrc for anything else on this controller

[rendellhb]

I implemented the hashCode and the equals methods but still not working
and I don´t undestand the second part :/

what kind of accessors/mutators are u talking about?

[monkeyden]

IIRC, you also need to use Seam managed persistence context to get the entity converter to work.  Do you have SMPC configured in components.xml?

Also, the Object implementations of those methods won't work.  You need to provide an implementation relevant to the entity.

[monkeyden]

Rendell Hoffmann Bernardes wrote on Mar 29, 2011 13:57:

...
what kind of accessors/mutators are u talking about?

As I said, that was just style and has no impact on your functionality.

[rendellhb]

I already have my SMPC configured on my components.xml

<persistence:managed-persistence-context
          name="entityManager" auto-create="false" entity-manager-factory="#{qgdEntityManagerFactory}" />

There is a odd thing happening here
I have this structure
ModAtb
    - ModSubPrc

so I was declaring ModSubPrc and ModAtb
after that I was setting

getModAtb().setModSubPrc(getModSubPrc());

doing like that is not working the xhtml doesen´t set ModSubPrc

but if I set directly in the chield Object doin like this on my xtml

#{controller.ModAtb.ModSubPrc}

works fine

do u know whay is that happening?

sorry about my english it´s a little better when I speak

and thank you for helpping me

[monkeyden]

Rendell Hoffmann Bernardes wrote on Mar 29, 2011 13:57:


I implemented the hashCode and the equals methods but still not working
and I don´t undestand the second part :/

1.  The hashCode and equals methods I see above won't suffice.  You need something that uses fields of the entity to determine uniqueness.

2.  Where is modSubPrc coming from?  If it comes from the form, you only confuse matters when you inject it here:

@In (create = true, required = false)
private ModSubPrc modSubPrc;

[rendellhb]

1.  The hashCode and equals methods I see above won't suffice.  You need something that uses fields of the entity to determine uniqueness.

The @Name on the entity isn´t enought to determine uniqueness?

2.  Where is modSubPrc coming from?

modSubPrc is an atribute of modAtb

if I declare value like this

#{controller.modAtb.modSubPrc}

works fine

but if I declare value like this

#{controller.modSubPrc}

it isn´t work, doesen´t set the object