Creating an entity instance
Find and update an entity row
Remove an entity row
Find the entity object by using primary key
To programmatically access the destination entities using the association accessor generated on entity implementation class
public DepartmentEOImpl createDeptEntity() {
//Find the entity definition from the implementation class
EntityDefImpl departmentEODef = DepartmentEOImpl.getDefinitionObject();
//Create the blank entity instance
DepartmentEOImpl newDept = (DepartmentEOImpl)departmentEODef.createInstance2(this.getDBTransaction(), null);
newDept.setDepartmentId(1000);
try {
getDBTransaction().commit();
} catch (JboException ex) {
getDBTransaction().rollback();
throw ex;
}
return newDept;
}
Find and update an entity row
public void findAndUpdateDeptEntity(Integer deptId) {
//Create Key
Key key = DepartmentEOImpl.createPrimaryKey(deptId);
//Find the entity row
DepartmentEOImpl deptRow =
(DepartmentEOImpl)DepartmentEOImpl.getDefinitionObject().findByPrimaryKey(getDBTransaction(), key);
deptRow.setDepartmentName("IT Admin");
}
Remove an entity row
public void findAndRemoveDeptEntity(Integer deptId) {
Key key = DepartmentEOImpl.createPrimaryKey(deptId);
DepartmentEOImpl deptRow = (DepartmentEOImpl)DepartmentEOImpl.getDefinitionObject().findByPrimaryKey(getDBTransaction(), key);
deptRow.remove();
}
Find the entity object by using primary key
private DepartmentEOImpl findDepartmentById(int deptId) {
//Find the entity definition from the implementation class
EntityDefImpl departmentEODef = DepartmentEOImpl.getDefinitionObject();
//Create the Key object
Key orderKey = DepartmentEOImpl.createPrimaryKey(new Integer(deptId));
//Find and return the desired instance
return (DepartmentEOImpl)departmentEODef.findByPrimaryKey(getDBTransaction(), orderKey);
}
To programmatically access the destination entities using the association accessor generated on entity implementation class
private DepartmentEOImpl findDepartmentById(int deptId) {
EntityDefImpl deptEODef = DepartmentEOImpl.getDefinitionObject();
//Find Creates the Key to find Department
Key deptIdKey = DepartmentEOImpl.createPrimaryKey(new Integer(deptId));
//Find the Department entity using deptId
DepartmentEOImpl deptEOImpl = (DepartmentEOImpl)deptEODef.findByPrimaryKey(getDBTransaction(), deptIdKey);
//Access Employees for this departament using association accessor getEmpEO() generated on DepartmentEOImpl class
RowIterator rowIter = DepartmentEOImpl.getEmpEO();
while (rowIter.hasNext()) {
Row row = rowIter.next();
//Row represent Emp entity instance
//Business logic goes here
}
}
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