This seems as though it would be a common problem but I haven't found much
information on the forum.
I create two entitys like this:
SUPERCLASS:
@Entity
@Table(name="emp_table")
@Inheritance(strategy=InheritanceType.JOINED)
public class Employee implements Serializable {
private static final long serialVersionUID = 48L;
private Long id;
private String name;
private String pass;
private double salary;
private Manager manager;
private Set<Attend> attends = new HashSet<Attend>();
private Set<Payment> payments = new HashSet<Payment>();
@OneToMany(mappedBy="id")
public Set<Attend> getAttends() {
return attends;
}
public void setAttends(Set<Attend> attends) {
this.attends = attends;
}
@Id @GeneratedValue(strategy=GenerationType.AUTO)
@Column(name="emp_id")
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@ManyToOne(cascade = { CascadeType.PERSIST, CascadeType.MERGE
},fetch=FetchType.EAGER)
@JoinColumn(name = "mgr_id")
public Manager getManager() {
return manager;
}
public void setManager(Manager manager) {
this.manager = manager;
}
@Column(name="emp_name")
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Column(name="emp_pass")
public String getPass() {
return pass;
}
public void setPass(String pass) {
this.pass = pass;
}
@OneToMany(mappedBy="id")
public Set<Payment> getPayments() {
return payments;
}
public void setPayments(Set<Payment> payments) {
this.payments = payments;
}
@Column(name="emp_salary")
public double getSalary() {
return salary;
}
public void setSalary(double salary) {
this.salary = salary;
}
public Employee() {
}
public Employee(Long id, String name, String pass, double salary,
Manager manager) {
this.id = id;
this.name = name;
this.pass = pass;
this.salary = salary;
this.manager = manager;
}
public boolean equals (Object obj)
{
if (null == obj) return false;
if (!(obj instanceof Employee))
{
return false;
}
else
{
Employee employee = (Employee) obj;
if (null == this.getName() || null ==
employee.getName() )
{
return false;
}
else
{
return (this.getName().equals(employee.getName()));
}
}
}
public int hashCode ()
{
return name.hashCode();
}
public String toString () {
return super.toString();
}
}
SUBCLASS:
@Entity
@Table(name = "mgr_table")
@PrimaryKeyJoinColumn(name = "mgr_id")
public class Manager extends Employee implements Serializable {
private static final long serialVersionUID = 48L;
private String dept;
private Set<Employee> employees = new HashSet<Employee>();
private Set<CheckBack> checks = new HashSet<CheckBack>();
public Manager() {
}
public Manager(String dept) {
this.dept = dept;
}
@OneToMany(mappedBy = "id")
public Set<CheckBack> getChecks() {
return checks;
}
public void setChecks(Set<CheckBack> checks) {
this.checks = checks;
}
@Column(name = "dept_name", nullable = false, length = 50)
public String getDept() {
return dept;
}
public void setDept(String dept) {
this.dept = dept;
}
@OneToMany(mappedBy = "id")
public Set<Employee> getEmployees() {
return employees;
}
public void setEmployees(Set<Employee> employees) {
this.employees = employees;
}
}
------------------
I receive the error indication like this when I execute the command "mvn
appfuse:gen -Dentity=Manager":
D:\Program Files\eclipse\workspace\myworkflow>mvn appfuse:gen
-Dentity=Manager
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'appfuse'.
[INFO] org.apache.maven.plugins: checking for updates from appfuse
[WARNING] repository metadata for: 'org.apache.maven.plugins' could not be
retrieved from repository: appfuse due to an error: Error transferring file
[INFO] Repository 'appfuse' will be blacklisted
[INFO]
------------------------------------------------------------------------
[INFO] Building Personal WorkFlow System
[INFO] task-segment: [appfuse:gen]
[INFO]
------------------------------------------------------------------------
[INFO] Preparing appfuse:gen
[INFO] [aspectj:compile {execution: default}]
[INFO] [native2ascii:native2ascii {execution: native2ascii-utf8}]
[INFO] [native2ascii:native2ascii {execution: native2ascii-8859_1}]
[INFO] [resources:resources]
[INFO] Using default encoding to copy filtered resources.
[INFO] [compiler:compile]
[INFO] Nothing to compile - all classes are up to date
[INFO] [appfuse:gen]
[INFO] Configuration XML file loaded: D:\Program
Files\eclipse\workspace\myworkflow\src\main\resources\hibernate.cfg.xml
[INFO] Configuration XML file loaded: D:\Program
Files\eclipse\workspace\myworkflow\src\main\resources\hibernate.cfg.xml
[INFO] src/main/resources/database.properties not found within the project.
Trying absolute path.
[INFO] No hibernate properties file loaded.
ERROR [main] runtime.error(96) |
Expression idFieldName is undefined on line 78, column 78 in
appfuse/web/jsf/for
m-view.ftl.
The problematic instruction:
----------
==> ${idFieldName} [on line 78, column 76 in appfuse/web/jsf/form-view.ftl]
----------
Java backtrace for programmers:
----------
freemarker.core.InvalidReferenceException: Expression idFieldName is
undefined o
n line 78, column 78 in appfuse/web/jsf/form-view.ftl.
at
freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:124)
at freemarker.core.Expression.getStringValue(Expression.java:118)
at freemarker.core.Expression.getStringValue(Expression.java:93)
at freemarker.core.DollarVariable.accept(DollarVariable.java:76)
at freemarker.core.Environment.visit(Environment.java:196)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:196)
How do I correctly map these two pieces together?Can you help me?
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