I'm Having a problem with my query
HighScoreGrammarI
-- getting data from sqlite
private void GetGrammarIScore()
{
highScores.Clear();
using (IDbConnection dbConnection = new SqliteConnection(Connection))
{
dbConnection.Open();
using (IDbCommand dbCmd = dbConnection.CreateCommand())
{
string select = String.Format("Select Hs_date, Hs_answer, Hs_score from Highscores_data where Hs_stage = 'GrammarI' and Hs_name = (\"{0}\")", Username.text);
dbCmd.CommandText = select;
using (IDataReader reader = dbCmd.ExecuteReader())
{
while (reader.Read())
{
highScores.Add(new HighScore(reader.GetDateTime(0), reader.GetInt32(1), reader.GetInt32(2)));
}
}
}
}
}
-- showing data using the get data void
private void showGrammarI()
{
GetGrammarIScore();
for (int i = 0; i < highScores.Count; i++)
{
GameObject tmpobjec = Instantiate(ScorePrefab);
HighScore tmpScore = highScores[i];
tmpobjec.GetComponent<HighscoreScript>().SetScore(tmpScore.Date.ToString(), tmpScore.CorrectAnswer.ToString(), tmpScore.Score.ToString());
}
}
HighscoreScript
public GameObject Date;
public GameObject CorrectAnswer;
public GameObject Score;
public void SetScore(string date, string correctanswer, string score)
{
this.Date.GetComponent<Text>().text = date;
this.CorrectAnswer.GetComponent<Text>().text = correctanswer;
this.Score.GetComponent<Text>().text = score;
}
HighScore
public DateTime Date { get; set; }
public int CorrectAnswer { get; set; }
public int Score { get; set; }
public HighScore(DateTime date, int correctanswer, int score)
{
this.Date = date;
this.CorrectAnswer = correctanswer;
this.Score = score;
}
THE ERROR IS HERE:
InvalidCastException: Cannot cast from source type to destination type.
Mono.Data.Sqlite.SqliteDataReader.VerifyType (Int32 i, DbType typ)
Mono.Data.Sqlite.SqliteDataReader.GetDateTime (Int32 i)HighScoreGrammarI.GetGrammarIScore () (at Assets/Script/HighScoreGrammarI.cs:73) >> this line is inside the while query in HighscoreGrammarI
Related
//Student Controller
public class Student
{
[Key]
public int StudentId { get; set; }
public string Name { get; set; }
public string UserName { get; set; }
public string Password { get; set; }
public string Emial { get; set; }
public string Role { get; set; }
}
//StudentConroller (Here I called Stored Procedure)
public class AccountController : Controller
{
public ApplicationDbClass applicationDbClass;
public AccountController()
{
applicationDbClass = new ApplicationDbClass();
}
public ActionResult Login()
{
return View();
}
[HttpPost]
public ActionResult Login(Student student)
{
var v1 = new SqlParameter();
v1.ParameterName = "#role";
v1.SqlDbType = SqlDbType.NVarChar;
v1.Value = "Admin";
var v2 = new SqlParameter();
v2.ParameterName = "#count";
v2.SqlDbType = SqlDbType.Int;
try
{
var result = applicationDbClass.Students.SqlQuery("StudentProcedure #role,#count OUT", v1, v2).ToArray();
}
catch(Exception e)
{
var m = e.Message;
}
return RedirectToAction("Welcome", "Student");
}
}
//Stored procedure
CREATE OR ALTER PROCEDURE StudentProcedure
#role NVARCHAR(30),
#count INT OUTPUT
AS
BEGIN
SELECT #count=COUNT(dbo.Students.Role)
FROM dbo.Students
WHERE Role=#role;
END
//DbContext Class
public class ApplicationDbClass : DbContext
{
public ApplicationDbClass() : base()
{
Database.SetInitializer<ApplicationDbClass>(new DropCreateDatabaseIfModelChanges<ApplicationDbClass>());
}
public DbSet<Student> Students { get; set; }
public DbSet<LogTable> LogTables { get; set; }
}
// Here I am using code first approch to deal with database using entity framework to call the user created stored procedure. If I make some changes on stored procedure it will not refected directly. Please give me any solution to refects the changes.
You can pass parameters in this way also
SqlConnection cnn = new SqlConnection(cnnString);
SqlCommand cmd = new SqlCommand("StudentProcedure", cnn);
cmd.Connection = cnn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("#role", "Admin");
cmd.Parameters.Add("#count", SqlDbType.Int);
cmd.Parameters["#count"].Direction = ParameterDirection.Output;
string Query = cmd.ExecuteNonQuery().ToString();
Here my goal is to show how to pass normal and output parameter to procedure.
There are two issues here in your code.
You should set the default value for your output parameter. Otherwise C# code will throw an exception if you do not set default value to your output parameter. So your stored procedure should look like this:
ALTER PROCEDURE StudentProcedure
#role NVARCHAR(30),
#count INT = NULL OUTPUT
AS
BEGIN
SELECT #count=COUNT(dbo.Students.Role)
FROM dbo.Students
WHERE Role=#role;
SELECT #count;
END
GO
And the second issue is you've forgot to set Direction of your output parameter:
var sqlParameter_Role = new SqlParameter("#role", "Admin");
var sqlParameter_Count = new SqlParameter();
sqlParameter_Count.ParameterName = "#count";
sqlParameter_Count.SqlDbType = SqlDbType.Int;
sqlParameter_Count.Direction = ParameterDirection.Output;
var result = db.Database
.SqlQuery<ResultForStudentProcedure>("dbo.StudentProcedure #role"
, sqlParameter_Role
, sqlParameter_Count)
.ToList();
public class ResultForStudentProcedure
{
public int Count { get; set; }
}
I have tried to send data as a string and it is working correctly. but now i want to insert all gridview data as a list into database. Code is here
public interface IService1
{
[OperationContract]
string InsertCustomerDetails(UserDetails userInfo);
[OperationContract]
[WebGet]
List<CustomerTable> GetCustomers();
}
public class UserDetails
{
string Name = string.Empty;
string City = string.Empty;
[DataMember]
public string name
{
get { return Name; }
set { Name = value; }
}
[DataMember]
public string city
{
get { return City; }
set { City = value; }
}
public class Service1 : IService1
{
public string InsertCustomerDetails(UserDetails userInfo)
{
using(DataContext db=new DataContext())
{
CustomerTable customer = new CustomerTable();
customer.Name = userInfo.name;
customer.City = userInfo.city;
db.CustomerTables.Add(customer);
db.SaveChanges();
}
return "name= " + userInfo.name + " city= " + userInfo.city;
}
}
}
WEB Form Code
protected void ButtonADD_Click(object sender, EventArgs e)
{
for (int i = 0; i < GridView2.Rows.Count; i++) {
UserDetails info = new UserDetails();
info.name = GridView2.Rows[i].Cells[0].Text;
info.city = GridView2.Rows[i].Cells[1].Text;
obj.InsertCustomerDetails(info);
} }
In Iservice1 class use this
public List<CustomerTable> InsertCustomerDetails(UserDetails userInfo)
{
using(DataContext db=new DataContext())
{
CustomerTable customer = new CustomerTable();
customer.Name = userInfo.name;
customer.City = userInfo.city;
db.CustomerTables.Add(customer);
db.SaveChanges();
return db.CustomerTables.ToList();
}
Use this in interface. Make setter getters in class UserDetails
[OperationContract]
List<CustomerTable> InsertCustomerDetails(UserDetails userInfo);
I Have done this. Just facing problem in Web Form. Any Help will be appriciated. I want to send dqata as list into database
I've recently been re-factoring my code to move from inproc to Session State. I've created a new class that I built from the start to be serializable. I'm currently getting the 'Unable to serialize the session state.' error. However, I am able to serialize the class using JsonConvert (newtonsoft).
Are methods not allowed or something?
This is what it looks like:
[Serializable()]
public class SessionStateObject
{
public int CurrentSessionId { get; set; }
public int CurrentAssessmentId { get; set; }
public int CurrentAssessmentElementId { get; set; }
public int CurrentUserId { get; set; }
public Dictionary<string, int> AssessmentItemsIds { get; set; }
public Dictionary<string, int> SessionResponseIds { get; set; }
public List<string> AdministeredItemOrderByName;
public string LastVisitedItem;
public int? TotalAssessmentCurrentItemOrder;
public RenderablePersistanceObject RenderablePersistance;
#region formula engine section variables
public string BranchingResult { get; set; }
public string ContentOutput { get; set; }
public int CurrentItemId { get; set; }
public int VirtualWorkingItemId { get; set; }
public bool isCloneItem { get; set; }
public bool wasPreFormulaRun;
public bool wasContentOutput;
public bool wasPrefillReached;
public bool isVirtual;
public List<string> FormulaStack { get; set; }
public List<string> ItemNameTokens { get; set; }
public string serializedJSContext { get; set; }
public string CloneSourceItem { get; set; }
public int itemsAbletoFastForwardThrough { get; set; }
#endregion
private Dictionary<int, int> itemIdByMultiGroupId; //key is itemId, val is groupId
private Dictionary<int, List<int>> MultiGroupIdByItemIds; //key is groupId, val is itemId
public SessionStateObject()
{
RenderablePersistance = new RenderablePersistanceObject();
AssessmentItemsIds = new Dictionary<string, int>();
SessionResponseIds = new Dictionary<string, int>();
AdministeredItemOrderByName = new List<string>();
FormulaStack = new List<string>();
ItemNameTokens = new List<string>();
itemIdByMultiGroupId = new Dictionary<int, int>();
MultiGroupIdByItemIds = new Dictionary<int, List<int>>();
}
public void initMultiItemGroups(Assessment assessment, NetScidDbContainer dbContext)
{
List<MultiItem> assessmentMultiItems = (from multi in dbContext.MultiItems
where multi.AssessmentId == assessment.Id
select multi).ToList();
List<int> uniqueGroupIds = new List<int>();
foreach (MultiItem mItem in assessmentMultiItems)
{
itemIdByMultiGroupId.Add(mItem.ItemId, mItem.GroupId);
if (!uniqueGroupIds.Contains(mItem.GroupId))
{
uniqueGroupIds.Add(mItem.GroupId);
}
}
foreach (int groupId in uniqueGroupIds)
{
List<int> ItemIds = (from itemGroup in assessmentMultiItems
where itemGroup.GroupId == groupId
orderby itemGroup.Id ascending
select itemGroup.ItemId).ToList();
MultiGroupIdByItemIds.Add(groupId, ItemIds);
}
}
public List<int> GetItemIdsFromSingleItemId(int itemId)
{
List<int> foundItemIDs = new List<int>();
int foundGroupId = -1;
if (this.itemIdByMultiGroupId.ContainsKey(itemId))
{
foundGroupId = this.itemIdByMultiGroupId[itemId];
}
if (this.MultiGroupIdByItemIds.ContainsKey(foundGroupId))
{
foundItemIDs = this.MultiGroupIdByItemIds[foundGroupId];
}
return foundItemIDs;
}
public void nullifyRenderable()
{
this.RenderablePersistance = null;
}
public void PersistRenderable(IRenderable renderable)
{
this.RenderablePersistance = new RenderablePersistanceObject();
if (renderable is MultiItemRenderable)
{
//get list of item IDs from the multi-item lookup
this.RenderablePersistance.isMultiItem = true;
this.RenderablePersistance.primaryItemId = ((Item)((MultiItemRenderable)renderable).IndexedItems.Last()).Id;
}
else //regular renderable
{
this.RenderablePersistance.isMultiItem = false;
this.RenderablePersistance.primaryItemId = ((Item)renderable).Id;
}
}
public AssessmentRuntime StartAdministrativeSession(NetScidDbContainer dataContext, Assessment assessment, User currentUser, string pid = "1")
{
AssessmentRuntime newRuntime = new AssessmentRuntime(this, dataContext);
Session newSession = new Session();
assessment.PrepElements();
PermissionEntity rootPE = new PermissionEntity();
if (currentUser != null)
{
rootPE = PermissionEntityHelper.GetRootPermissionEnity(dataContext, currentUser);
}
else
{
rootPE = (from adminpe in dataContext.PermissionEntities
where adminpe.Name == "TelesageAdmin"
select adminpe
).FirstOrDefault();
}
newSession.Participant = (from pids in dataContext.ParticipantIdAliasLookups
where pid == pids.AliasId && pids.RootPermissionEntity.Id == rootPE.Id
select pids.Participant).FirstOrDefault();
if (newSession.Participant == null)
{
Participant newParticipant = new Participant();
ParticipantIdAliasLookup newPidAlias = new ParticipantIdAliasLookup();
newParticipant.ParticipantDataJSON = "";
newPidAlias.AliasId = pid;
newPidAlias.RootPermissionEntity = rootPE;
newParticipant.AliasLookup = newPidAlias;
newParticipant.PermissionEntities.Add(currentUser.PermissionEntity);
newParticipant.PermissionEntities.Add(rootPE);
newSession.Participant = newParticipant;
dataContext.Participants.AddObject(newParticipant);
dataContext.ParticipantIdAliasLookups.AddObject(newPidAlias);
}
newSession.Assessment = assessment;
newSession.User = currentUser;
newSession.StartTime = DateTime.Now;
newSession.PermissionEntity = currentUser.PermissionEntity;
newSession.SetSessionData("engineversion", typeof(SmartQWeb.MvcApplication).Assembly.GetName().Version.ToString());
newSession.SetSessionData("assessmentname", newSession.Assessment.Name);
newSession.SetSessionData("assessmentversion", newSession.Assessment.Version);
newSession.SetSessionData("computername", Environment.MachineName);
newSession.SetSessionData("username", currentUser.Name);
dataContext.Sessions.AddObject(newSession);
newSession.SetSessionData("dxdata", JsonConvert.SerializeObject(newRuntime.RenderedDiagnoses));
newRuntime.formulaEngine = new FixedLengthFormulaEngine(newRuntime);
SessionLog newSessionLog = new SessionLog();
dataContext.SessionLogs.AddObject(newSessionLog);
newSession.SessionLog = newSessionLog;
dataContext.SaveChanges();
initMultiItemGroups(assessment, dataContext);
this.CurrentSessionId = newSession.Id;
this.CurrentUserId = currentUser.Id;
this.CurrentAssessmentId = assessment.Id;
newRuntime.Context = new RuntimeContext(this, dataContext);
this.GetAssessmentItems(assessment); //to populate the items dict
newRuntime.formulaEngine.InitializeContext(this.AssessmentItemsIds.Keys.ToList());
newRuntime.RenderedDiagnoses = new RenderedDiagnosisModel(newRuntime.Context.AdministeredItemOrderByName);
newRuntime.Context.Logger.WriteLog("Session started with assessment: " + newRuntime.Context.Assessment.Name + " with version: " + newRuntime.Context.Assessment.Version);
newRuntime.Context.Logger.WriteLog("Session started by user: " + newRuntime.Context.CurrentUser.Name + "for participant ID: " + newSession.ParticipantId);
return newRuntime;
}
//start from a previous existing session
public AssessmentRuntime StartAdministrativeSession(NetScidDbContainer dataContext, Assessment assessment, Session previousSession, User currentUser, string pid = "", string resumefromlatest = "false")
{
AssessmentRuntime newRuntime = new AssessmentRuntime(this, dataContext);
Session newSession = new Session();
Assessment sessionAssessment = assessment;
newSession.ParticipantId = previousSession.ParticipantId;
//THE OTHER ENTITIES BESIDES THE SESSION NEED TO BE DETATCHED AND RE-ATTACHED (BY BEING ADDED TO THE NEW SESSION)
assessment.PrepElements();
newRuntime.RenderedDiagnoses = new RenderedDiagnosisModel(newRuntime.Context.AdministeredItemOrderByName);
List<Response> prevresponses = previousSession.Responses.ToList();
if (sessionAssessment == assessment)
{
foreach (Response prevresponse in prevresponses)
{
newRuntime.Context.CachedAssessmentResponses.Add(prevresponse.Item.ItemName, prevresponse);
dataContext.Detach(prevresponse);
newSession.Responses.Add(prevresponse);
}
}
else
{
//the sessionAssessment is now the more up-to-date one so the responses pulled will have to be mapped, not just detatched and copied
foreach (Response prevresponse in prevresponses)
{
Dictionary<string, FixedLengthItem> newAssessmentItemNames = AssessmentHelper.GetAssessmentItems(sessionAssessment);
if (!newAssessmentItemNames.ContainsKey(prevresponse.Item.ItemName))
continue;
Response newResponse = new Response
{
NumericValue = prevresponse.NumericValue,
Item = newAssessmentItemNames[prevresponse.Item.ItemName],
ItemName = prevresponse.Item.ItemName,
AdministeredOrder = -1,
Value = prevresponse.Value
};
newRuntime.Context.CachedAssessmentResponses.Add(newResponse.Item.ItemName, newResponse);
newSession.Responses.Add(newResponse);
}
}
newSession.SessionDataJSON = previousSession.SessionDataJSON;
//DxData
newRuntime.RenderedDiagnoses =
JsonConvert.DeserializeObject<RenderedDiagnosisModel>(newSession.GetSessionData("dxdata"));
//inc session is =2 when the the session has been resumed by
previousSession.IncSession = 2;
newSession.SetSessionData("previoussession", previousSession.Id.ToString());
newSession.Participant = previousSession.Participant;
newSession.Assessment = sessionAssessment;
newSession.User = currentUser;
newSession.PermissionEntity = currentUser.PermissionEntity;
newSession.StartTime = DateTime.Now;
dataContext.Sessions.AddObject(newSession);
dataContext.SaveChanges();
newRuntime.formulaEngine = new FixedLengthFormulaEngine(newRuntime);
initMultiItemGroups(assessment, dataContext);
newSession.SetSessionData("continuedsession", newSession.Id.ToString());
this.CurrentSessionId = newSession.Id;
this.CurrentUserId = currentUser.Id;
this.CurrentAssessmentId = assessment.Id;
this.GetAssessmentItems(assessment); //to populate the items dict
this.SetUpPreviousResponses(newSession); //populates SSO responses
newRuntime.Context = new RuntimeContext(this, dataContext);
if (newRuntime.RenderedDiagnoses != null)
newRuntime.RenderedDiagnoses.reInitAdminOrder(newRuntime.Context.AdministeredItemOrderByName);
newRuntime.formulaEngine.InitializeContext(this.AssessmentItemsIds.Keys.ToList());
return newRuntime;
}
//start from the SSO
public AssessmentRuntime ResumeSessionFromState(NetScidDbContainer dataContext)
{
AssessmentRuntime newRuntime = new AssessmentRuntime(this, dataContext);
newRuntime.formulaEngine = new FixedLengthFormulaEngine(newRuntime);
newRuntime.formulaEngine.InitializeSerializedContext(serializedJSContext);
newRuntime.Context = new RuntimeContext(this, dataContext);
if (this.CurrentAssessmentElementId != 0)
{
newRuntime.CurrentAssessmentElement = (from ae in dataContext.AssessmentElements
where ae.Id == this.CurrentAssessmentElementId
select ae).FirstOrDefault();
newRuntime.CurrentAssessmentElement.GetNewRuntime(newRuntime.Context);
}
return newRuntime;
}
private void GetAssessmentItems(Assessment assessment)
{
var fixedLengthElements = (from elements in assessment.AssessmentElements
where elements is FixedLengthBlock
select elements);
foreach (FixedLengthBlock elemblock in fixedLengthElements)
{
foreach (FixedLengthItem item in elemblock.ItemBank.Items)
{
item.aeRef = elemblock;
AssessmentItemsIds.Add(item.ItemName, item.Id);
}
}
}
private void SetUpPreviousResponses(Session newSession)
{
//put response IDs by itemname into this dictionary
SessionResponseIds = (from response in newSession.Responses
select response).ToDictionary(key => key.ItemName, value => value.Id);
}
}
And the RenderablePersistanceObject looks like this:
public class RenderablePersistanceObject
{
public int primaryItemId;
public int MultiItemGroupId;
public bool isMultiItem;
}
You can't serialize a straight Dictionary like that. You can take a look at this MSDN article for suggestions on implementing. If you don't truly need a Dictionary, perhaps List> might work better?
As Erik pointed out, it was the lack of the adorner [Serializable()] on that other object that caused the problem. Adding it solved my issue.
How should I Map an object with a nullable field? I guess I must turn the nullable field into a non-nullable version, and it's that step that I stumble upon.
What is the proper way to map nullable properties?
public class Visit {
public string Id { get; set; }
public int? MediaSourceId { get; set; }
}
public class MapReduceResult
{
public string VisitId { get; set; }
public int MediaSourceId { get; set; }
public string Version { get; set; }
public int Count { get; set; }
}
AddMap<Visit>(
visits =>
from visit in visits
select new
{
VisitId = visit.Id,
MediaSourceId =
(visit.MediaSourceId.HasValue)
? visit.MediaSourceId
: UNUSED_MEDIASOURCE_ID,
Version = (string) null,
Count = 1
});
This doesn't work! In fact; this Map is completely ignored, while the other Maps work fine, and they are in the end Reduced as expected.
Thanks for helping me!
Below is a newly added test case that fails with a "Cannot assign <null> to anonymous type property". How am I supposed to get this flying with the least amount of pain?
[TestFixture]
public class MyIndexTest
{
private IDocumentStore _documentStore;
[SetUp]
public void SetUp()
{
_documentStore = new EmbeddableDocumentStore {RunInMemory = true}.Initialize();
_documentStore.DatabaseCommands.DisableAllCaching();
IndexCreation.CreateIndexes(typeof (MyIndex).Assembly, _documentStore);
}
[TearDown]
public void TearDown()
{
_documentStore.Dispose();
}
[Test]
public void ShouldWork()
{
InitData();
IList<MyIndex.MapReduceResult> mapReduceResults = null;
using (var session = _documentStore.OpenSession())
{
mapReduceResults =
session.Query<MyIndex.MapReduceResult>(
MyIndex.INDEX_NAME)
.Customize(x => x.WaitForNonStaleResults()).ToArray();
}
Assert.That(mapReduceResults.Count, Is.EqualTo(1));
}
private void InitData()
{
var visitOne = new Visit
{
Id = "visits/64",
MetaData = new MetaData {CreatedDate = new DateTime(1975, 8, 6, 0, 14, 0)},
MediaSourceId = 1,
};
var visitPageVersionOne = new VisitPageVersion
{
Id = "VisitPageVersions/123",
MetaData = new MetaData {CreatedDate = new DateTime(1975, 8, 6, 0, 14, 0)},
VisitId = "visits/64",
Version = "1"
};
using (var session = _documentStore.OpenSession())
{
session.Store(visitOne);
session.Store(visitPageVersionOne);
session.SaveChanges();
}
}
public class MyIndex :
AbstractMultiMapIndexCreationTask
<MyIndex.MapReduceResult>
{
public const string INDEX_NAME = "MyIndex";
public override string IndexName
{
get { return INDEX_NAME; }
}
public class MapReduceResult
{
public string VisitId { get; set; }
public int? MediaSourceId { get; set; }
public string Version { get; set; }
public int Count { get; set; }
}
public MyIndex()
{
AddMap<Visit>(
visits =>
from visit in visits
select new
{
VisitId = visit.Id,
MediaSourceId = (int?) visit.MediaSourceId,
Version = (string) null,
Count = 1
});
AddMap<VisitPageVersion>(
visitPageVersions =>
from visitPageVersion in visitPageVersions
select new
{
VisitId = visitPageVersion.VisitId,
MediaSourceId = (int?) null,
Version = visitPageVersion.Version,
Count = 0
});
Reduce =
results =>
from result in results
group result by result.VisitId
into g
select
new
{
VisitId = g.Key,
MediaSourceId = (int?) g.Select(x => x.MediaSourceId).FirstOrDefault(),
Version = g.Select(x => x.Version).FirstOrDefault(),
Count = g.Sum(x => x.Count)
};
}
}
}
You don't need to do anything to give nullables special treatment.
RavenDB will already take care of that.
I have the following class:
#PersistenceCapable(identityType = IdentityType.APPLICATION, detachable = "true")
public class TclRequest implements Comparable<TclRequest> {
#PrimaryKey
private String id;
#Persistent(types = { DNSTestData.class, POP3TestData.class, PPPoETestData.class, RADIUSTestData.class }, defaultFetchGroup = "true")
#Columns({ #Column(name = "dnstestdata_fk"), #Column(name = "pop3testdata_fk"), #Column(name = "pppoetestdata_fk"), #Column(name = "radiustestdata_fk") })
private TestData testData;
public String getId() {
return id;
}
public TestData getTestData() {
return testData;
}
public void setId(String id) {
this.id = id;
}
public void setTestData(TestData testData) {
this.testData = testData;
}
}
The TestData interface looks like this:
#PersistenceCapable(detachable = "true")
public interface TestData {
#PrimaryKey
public String getId();
public void setId(String id);
}
Which is implemented by many classed including this one:
#PersistenceCapable(detachable = "true")
public class RADIUSTestData implements TestData {
#PrimaryKey
private String id;
private String password;
private String username;
public RADIUSTestData() {
}
public RADIUSTestData(String password, String username) {
super();
this.password = password;
this.username = username;
}
#Override
public String getId() {
return id;
}
#Override
public void setId(String id) {
this.id = id;
}
}
When I try to persiste the TclRequest class, after constructing it of course and using the RADIUSTestData:
//'o' is the constructed TclRequest object.
PersistenceManager pm = null;
Transaction t = null;
try {
pm = getPM();
t = pm.currentTransaction();
t.begin();
pm.makePersistent(o);
t.commit();
} catch (Exception e) {
e.printStackTrace();
if (t != null && t.isActive()) {
t.rollback();
}
} finally {
closePM(pm);
}
The interface field isn't persisted. And the column is not created in the table ! I enabled the debug mode and found 2 catchy things:
1)
-Class com.skycomm.cth.beans.ixload.radius.TestData specified to use "application identity" but no "objectid-class" was specified. Reverting to javax.jdo.identity.StringIdentity
2)
-Performing reachability on PC field "com.skycomm.cth.beans.TclRequest.testData"
-Could not find StateManager for PC object "" at field "com.skycomm.cth.beans.TclRequest.testData" - ignoring for reachability
What could this mean ?
Thanks in advance.
I have figured out how to do it. It's not very much scalable but it works for now.
These are the annotations for the interface member variable. Note that the order of declared types, columns and class names in the extension value is important to be maintaned:
#Persistent(types = { RADIUSTestData.class, POP3TestData.class, PPPoETestData.class, DNSTestData.class }, defaultFetchGroup = "true")
#Columns({ #Column(name = "radiustestdata_fk"), #Column(name = "pop3testdata_fk"), #Column(name = "pppoetestdata_fk"),
#Column(name = "dnstestdata_fk") })
#Extension(vendorName = "datanucleus", key = "implementation-classes", value = "com.skycomm.cth.tcl.beans.radius.RADIUSTestData, com.skycomm.cth.tcl.beans.pop3.POP3TestData, com.skycomm.cth.tcl.beans.pppoe.PPPoETestData, com.skycomm.cth.tcl.beans.dns.DNSTestData")
A sample class implementing one of the interfaces (Just it's "header"):
#PersistenceCapable(detachable = "true")
public class RADIUSTestData implements TestData {
So it's pretty normal here.