Solved! I've seen a number of posts relating to this issue but none with solutions...
In searching for how $JAVASSIST_READ_WRITE_HANDLER came into existence we find: http://www.docjar.com/html/api/org/hibernate/tool/instrument/javassist/FieldTransformer.java.html There we can see the getter for "$JAVASSIST_READ_WRITE_HANDLER" is actually "getFieldHandler" so the exclude parameter becomes: @Action(value = "list-clients", results = { @Result(type = "json", params = { "excludeProperties", "^list\\[.*\\]\\.fieldHandler\\..*" }) }) And it all works... Just tested the shorter ".*\\.fieldHandler\\..*" and it works too, which is much better because now there is one solution for all such instrumented entities! On Tue, 2011-09-06 at 22:20 -0600, Ken McWilliams wrote: > I have a JPA entity, which hibernate is proxying. > > The following action works as it explicitly states the properties to > include, however what I would much rather do is use excludeProperties to > remove the problematic property. The problem property when serialized > causes a "Positioned Update not supported" exception. > > The interesting thing is, all the properties on the entity class are > persisted correctly if explicitly included. > > Looking in the the debugger shows there is a property called > "$JAVASSIST_READ_WRITE_HANDLER" of type FieldInterceptorImpl which > Hibernate/JPA adds to the entity. I'm pretty sure this is what is > causing it to fail. > > > I've tried the following: > @Action(value = "list-clients", results = { > @Result(type = "json", params = { > "excludeProperties", > "list\\[.*\\]\\.\\$JAVASSIST_READ_WRITE_HANDLER.*" > }) > }) > > but with no luck. Following is my action and the entity class. > > > > Here is my action (In a _working_ state): > ///////////////////////////// > @ParentPackage("json-default") > @Result(type = "json") > public class ListTable extends ActionSupport { > > @EJB > private ClientService clientService; > private List list; > > @Action(value = "list-clients", results = { > @Result(type = "json", params = { > "includeProperties", > "list\\[.*\\]\\.name, list\\[.*\\]\\.id, list\\[.*\\]\ > \.timelogCollection\\..*" > }) > }) > public String listClients() { > list = clientService.list(); > return SUCCESS; > } > > public List getList() { > return list; > } > } > ///////////////////////////// > > Here is the entity: > ///////////////////////////// > @Entity > @Table(name = "client") > @XmlRootElement > @NamedQueries({ > @NamedQuery(name = "Client.findAll", query = "SELECT c FROM Client > c"), > @NamedQuery(name = "Client.findById", query = "SELECT c FROM Client > c WHERE c.id = :id"), > @NamedQuery(name = "Client.findByName", query = "SELECT c FROM > Client c WHERE c.name = :name")}) > public class Client implements Serializable { > private static final long serialVersionUID = 1L; > @Id > @GeneratedValue(strategy = GenerationType.IDENTITY) > @Basic(optional = false) > @NotNull > @Column(name = "id") > private Integer id; > @Size(max = 45) > @Column(name = "name") > private String name; > @OneToMany(cascade = CascadeType.ALL, mappedBy = "clientId") > private Collection<Timelog> timelogCollection; > > public Client() { > } > > public Client(Integer id) { > this.id = id; > } > > public Integer getId() { > return id; > } > > public void setId(Integer id) { > this.id = id; > } > > public String getName() { > return name; > } > > public void setName(String name) { > this.name = name; > } > > @XmlTransient > public Collection<Timelog> getTimelogCollection() { > return timelogCollection; > } > > public void setTimelogCollection(Collection<Timelog> > timelogCollection) { > this.timelogCollection = timelogCollection; > } > > @Override > public int hashCode() { > int hash = 0; > hash += (id != null ? id.hashCode() : 0); > return hash; > } > > @Override > public boolean equals(Object object) { > // TODO: Warning - this method won't work in the case the id > fields are not set > if (!(object instanceof Client)) { > return false; > } > Client other = (Client) object; > if ((this.id == null && other.id != null) || (this.id != null > && !this.id.equals(other.id))) { > return false; > } > return true; > } > > @Override > public String toString() { > return "com.aerose.kentimekeeper.db.Client[ id=" + id + " ]"; > } > > } > ///////////////////////////// > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org > For additional commands, e-mail: user-h...@struts.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
