Problem with editing entity if it uses @EmbeddedId

[pczekaj]

I'm having problems with editing entity with @EmbeddedId. On page I've placed inputText element for every PK field, for example:
<h:inputText id="id_nr" value="#{uscModpskr.id.nr}" required="true"/>
I can see in inputText proper values fetched from database but when I click h:commandButton I'm getting 5 times Conversion error occurred message. My PK contains 5 fields: 2 strings, 2 ints, one char field.

@Stateful
@Name("marriageSearch")
@Scope(ScopeType.SESSION)
public class MarriageSearchingAction implements MarriageSearching, Serializable {

 @In(required=false)
 @Out(required=false)
 private UscModpskr uscModpskr;

 //[...]
}

// Generated 2006-06-04 20:38:58 by Hibernate Tools 3.1.0.beta5
@Entity
@Table(name = "usc_modpskr", uniqueConstraints = {})
@Name("uscModpskr")
public class UscModpskr implements java.io.Serializable {

 // Fields
 private UscId id;

 private String dzpl;
 //[...many other fields...]

 @EmbeddedId
 @AttributeOverrides( {
 @AttributeOverride(name = "idusc", column = @Column(name = "idusc", unique = false, nullable = false, insertable = true, updatable = true, length = 10)),
 @AttributeOverride(name = "rk", column = @Column(name = "rk", unique = false, nullable = false, insertable = true, updatable = true)),
 @AttributeOverride(name = "dz", column = @Column(name = "dz", unique = false, nullable = false, insertable = true, updatable = true, length = 20)),
 @AttributeOverride(name = "nr", column = @Column(name = "nr", unique = false, nullable = false, insertable = true, updatable = true)),
 @AttributeOverride(name = "nrp", column = @Column(name = "nrp", unique = false, nullable = false, insertable = true, updatable = true, length = 1)) })
 public UscId getId() {
 return this.id;
 }

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

@Embeddable
public class UscId implements java.io.Serializable {

 private String idusc;

 private int rk;

 private String dz;

 private int nr;

 private char nrp;

 //[...getters and setters...]
}

[pczekaj]

I've found solution, it works well if I change:

@In(required=false)
@Out(required=false)
private UscModpskr uscModpskr;

to:

@In(required=false)
@Out(required=false,scope=ScopeType.SESSION)
private UscModpskr uscModpskr;