entityManager merge instance throws java.lang.UnsupportedOperationException
I'm using seam 2.0 for my application
I got an exception java.lang.UnsupportedOperationException when i try to merge the instance,
I tried the following Scenarios
- Persist the object without setting the categories (ManyToMany Relation) : The object can be persisted and updated
- Persist the Object with setting the Categories : The object will be persisted but if i tried to merge it will throw (java.lang.UnsupportedOperationException)
Hope if anyone could give me a hint
Here is the code
@Name("standard")
@Entity
@Table(name = "gso_standard")
public class Standard {
// This is the Category relation that i believe it caused the exception
@ManyToMany
@JoinTable(name = "STD_CAT", joinColumns = @JoinColumn(name = "STD_ID"), inverseJoinColumns = @JoinColumn(name = "CAT_ID"))
private List<Category> stdCategroies = new ArrayList();
@ManyToMany(cascade = CascadeType.REFRESH)
@JoinTable(name = "STD_REPLACEMENT", joinColumns = @JoinColumn(name = "REPLACED_STD_ID"), inverseJoinColumns = @JoinColumn(name = "OLD_STD_ID"))
private List<Standard> replacersStandards;
@ManyToMany(mappedBy = "replacersStandards",cascade = CascadeType.REFRESH)
private List<Standard> replacedStandards;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "UPDATED_STD_ID")
private Standard oldUpdatedStandard;
@Id
@GeneratedValue
private Long id;
private String fullName;
@NotNull
private String prefix;
@NotNull
private String no;
private String partNo;
private String sectionNo;
@NotNull
@Length(min = 4, max = 4)
private String issueDate;
private String refPrefix;
private String refNo;
private String refPartNo;
private String refSectionNo;
private String refIssueDate;
private String oldNo;
private String titleAr;
@NotNull
private String titleEn;
@Lob
private String scopeAr;
@Lob
private String scopeEn;
@NotNull
private String ics1;
private String ics2;
private String ics3;
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "type_id", referencedColumnName = "id")
private Type type;
private String assignedTo;
@OneToMany(cascade = CascadeType.ALL)
private List<LanguagePages> langPages = new ArrayList();
@ManyToOne
private TechnicalCouncil techCouncil;
@ManyToOne
private BoardOfDirectors bod;
@ManyToOne
private TechnicalCommittee techCommittee;
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "state_ID", referencedColumnName = "id")
private State state;
private Boolean cancelled;
@Basic
@Temporal(TemporalType.DATE)
private Date cancelDate;
private String note;
private Boolean suspended;
@Column(name = "doc_en")
private String docEn;
@Column(name = "doc_ar")
private String docAr;
@Column(name = "doc_update_ar")
private String docUpdateAr;
@Column(name = "doc_updatE_en")
private String docUpdateEn;
private String updateBy;
@NotNull
@Basic
@Temporal(TemporalType.TIMESTAMP)
private Date updateDate;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFullName() {
return fullName;
}
public void setFullName(String fullName) {
this.fullName = fullName;
}
public String getPrefix() {
return prefix;
}
public void setPrefix(String prefix) {
this.prefix = prefix;
}
public String getRefPrefix() {
return refPrefix;
}
public void setRefPrefix(String refPrefix) {
this.refPrefix = refPrefix;
}
public String getRefNo() {
return refNo;
}
public void setRefNo(String refNo) {
this.refNo = refNo;
}
public String getRefPartNo() {
return refPartNo;
}
public void setRefPartNo(String refPartNo) {
this.refPartNo = refPartNo;
}
public void setOldNo(String oldNo) {
this.oldNo = oldNo;
}
public String getTitleAr() {
return titleAr;
}
public void setTitleAr(String titleAr) {
this.titleAr = titleAr;
}
public String getTitleEn() {
return titleEn;
}
public void setTitleEn(String titleEn) {
this.titleEn = titleEn;
}
public String getScopeAr() {
return scopeAr;
}
public void setScopeAr(String scopeAr) {
this.scopeAr = scopeAr;
}
public String getScopeEn() {
return scopeEn;
}
public void setScopeEn(String scopeEn) {
this.scopeEn = scopeEn;
}
public String getAssignedTo() {
return assignedTo;
}
public void setAssignedTo(String assignedTo) {
this.assignedTo = assignedTo;
}
public Boolean getCancelled() {
return cancelled;
}
public void setCancelled(Boolean cancelled) {
this.cancelled = cancelled;
}
public Date getCancelDate() {
return cancelDate;
}
public void setCancelDate(Date cancelDate) {
this.cancelDate = cancelDate;
}
public String getNote() {
return note;
}
public void setNote(String note) {
this.note = note;
}
public String getIssueDate() {
return issueDate;
}
public void setIssueDate(String issueDate) {
this.issueDate = issueDate;
}
public String getRefIssueDate() {
return refIssueDate;
}
public void setRefIssueDate(String refIssueDate) {
this.refIssueDate = refIssueDate;
}
public State getState() {
return state;
}
public void setState(State state) {
this.state = state;
}
public String getUpdateBy() {
return updateBy;
}
public void setUpdateBy(String updateBy) {
this.updateBy = updateBy;
}
public Date getUpdateDate() {
return updateDate;
}
public void setUpdateDate(Date updateDate) {
this.updateDate = updateDate;
}
public String getIcs1() {
return ics1;
}
public void setIcs1(String ics1) {
this.ics1 = ics1;
}
public String getIcs2() {
return ics2;
}
public void setIcs2(String ics2) {
this.ics2 = ics2;
}
public String getIcs3() {
return ics3;
}
public void setIcs3(String ics3) {
this.ics3 = ics3;
}
public String getNo() {
return no;
}
public void setNo(String no) {
this.no = no;
}
public String getSectionNo() {
return sectionNo;
}
public void setSectionNo(String sectionNo) {
this.sectionNo = sectionNo;
}
public String getDocEn() {
return docEn;
}
public void setDocEn(String docEn) {
this.docEn = docEn;
}
public String getDocAr() {
return docAr;
}
public void setDocAr(String docAr) {
this.docAr = docAr;
}
public String getDocUpdateAr() {
return docUpdateAr;
}
public void setDocUpdateAr(String docUpdateAr) {
this.docUpdateAr = docUpdateAr;
}
public String getDocUpdateEn() {
return docUpdateEn;
}
public void setDocUpdateEn(String docUpdateEn) {
this.docUpdateEn = docUpdateEn;
}
public String getPartNo() {
return partNo;
}
public void setPartNo(String partNo) {
this.partNo = partNo;
}
public String getRefSectionNo() {
return refSectionNo;
}
public void setRefSectionNo(String refSectionNo) {
this.refSectionNo = refSectionNo;
}
public String getOldNo() {
return oldNo;
}
public Type getType() {
return type;
}
public void setType(Type type) {
this.type = type;
}
public TechnicalCouncil getTechCouncil() {
return techCouncil;
}
public void setTechCouncil(TechnicalCouncil techCouncil) {
this.techCouncil = techCouncil;
}
public BoardOfDirectors getBod() {
return bod;
}
public void setBod(BoardOfDirectors bod) {
this.bod = bod;
}
public TechnicalCommittee getTechCommittee() {
return techCommittee;
}
public void setTechCommittee(TechnicalCommittee techCommittee) {
this.techCommittee = techCommittee;
}
public List getLangPages() {
return langPages;
}
public Boolean getSuspended() {
return suspended;
}
public void setSuspended(Boolean suspended) {
this.suspended = suspended;
}
public List<Category> getStdCategroies() {
return stdCategroies;
}
public void setStdCategroies(List<Category> stdCategroies) {
this.stdCategroies = stdCategroies;
}
public void setLangPages(List<LanguagePages> langPages) {
this.langPages = langPages;
}
public List<Standard> getReplacedStandards() {
return replacedStandards;
}
public void setReplacedStandards(List<Standard> replacedStandards) {
this.replacedStandards = replacedStandards;
}
public Standard getOldUpdatedStandard() {
return oldUpdatedStandard;
}
public void setOldUpdatedStandard(Standard oldUpdatedStandard) {
this.oldUpdatedStandard = oldUpdatedStandard;
}
public List<Standard> getReplacersStandards() {
return replacersStandards;
}
public void setReplacersStandards(List<Standard> replacersStandards) {
this.replacersStandards = replacersStandards;
}
public String getComposedName() {
StringBuffer result = new StringBuffer();
result.append(prefix);
result.append(" " + no);
result.append(partNo == null || partNo.equals("") ? "" : "-" + partNo);
result.append(sectionNo == null || sectionNo.equals("") ? "" : "-" + sectionNo);
result.append(":" + issueDate);
return result.toString();
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Standard other = (Standard) obj;
if (id == null) {
if (other.id != null)
return false;
} else if (!id.equals(other.id))
return false;
return true;
}
}
And below is the Category Entity
@Entity
@Table(name = "project_category")
@Name("category")
public class Category implements Serializable {
@Id @GeneratedValue
private Long id;
@Column(name = "name_ar")
private String nameAr;
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Category other = (Category) obj;
if (id == null) {
if (other.id != null)
return false;
} else if (!id.equals(other.id))
return false;
return true;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getNameAr() {
return nameAr;
}
public void setNameAr(String nameAr) {
this.nameAr = nameAr;
}
}
The Second Class is the Bussiness class that manages the actions
@Name("standardHome")
@Scope(ScopeType.CONVERSATION)
public class StandardHome {
@Out(required = false)
private List<Standard> replacerStandards;
@In(create = true)
private EntityManager entityManager;
@DataModel("standards")
private List standards;
@DataModelSelection
@In(required = false, create = true)
@Out(required = false)
private Standard standard;
@Factory("standards")
@Begin(join = true)
public void listStandards() {
//code that fetches all the standards
}
public String saveStandard() {
standard.setUpdateBy(loggedUser.getUsername().toLowerCase());
standard.setUpdateDate(new Date(System.currentTimeMillis()));
standard.setFullName(standard.getComposedName());
entityManager.persist(standard);
return "persisted";
}
public String updateStandard() {
standard.setUpdateBy(loggedUser.getUsername().toLowerCase());
standard.setUpdateDate(new Date(System.currentTimeMillis()));
standard.setFullName(standard.getComposedName());
entityManager.merge(standard);
return "updated";
}
Finally here is the code fragment that manage the category selection
<s:decorate id="stdCategoryDecor" template="layout/edit.xhtml">
<ui:define name="label">#{messages['std.sector']}</ui:define>
<h:selectManyCheckbox id="groups" value="#{standard.stdCategroies}" layout="pageDirection" rendered="#{standard.stdCategroies != null}" >
<s:selectItems value="#{lookup.categories}" var="cat" label="#{cat.nameAr}"/>
<s:convertEntity/>
</h:selectManyCheckbox>
</s:decorate>
<div class="actionButtons">
<h:commandButton id="persist" value="#{messages['std.create.standard']}" action="#{standardHome.saveStandard}" rendered="#{standard.id == null}" />
<h:commandButton id="update" value="#{messages['std.update.standard']}" action="#{standardHome.updateStandard}" rendered="#{standard.id != null}" />
<s:button id="cancel" value="#{messages['std.cancel']}" propagation="end" view="/listStandards.xhtml" />
</div>