Mysterios persistence problem
Hello,
i`m having an mysterios problem with my 3tier application.
I hope someone can give me a hint cause i'm really getting nuts.
The problem:
I have two tables in an oneToOne relationship.
In my application is a mask which needs values from both tables.
So lookup the first entityObject from the database and then call it`s
method to get the second one.
In a second mask i can create these objects.
The saving works fine and all the data is written correctly into the tables.
When i do the described lookup on the data i get the first object but the
function which should return the related object always returns NULL.
The data in the tables is as far as i can tell correct.
The mysterios about this thing is that data which i write per hand into the
database is return correctly.
The problem occurs only if the data was entered with my application.
I tested it and even if i enter the data written by the application exactly with
sqlplus it works only with the second way.
I hope it is clear what`s my problem.
The tables in Oracle 10:
create table campaign_context ( campaign_context_id number, campaign_name varchar2(30), market_id number, brand_name varchar2(30), active number(1), description varchar2(2047), campaign_id number ) create table campaign ( campaign_id number, campaign_context_id number, campaign_name varchar2(30), campaign_type varchar2(30), summary_flag varchar2(30), start_date date, end_date date, external_id number, username varchar2(30), password varchar2(30), service varchar2(30), description varchar2(2047), scheduler_id number ) CREATE SEQUENCE campaign_context_sequence START WITH 1 INCREMENT BY 1 CREATE SEQUENCE campaign_sequence START WITH 1 INCREMENT BY 1 ALTER TABLE campaign add CONSTRAINT campaign_pk PRIMARY KEY (campaign_id) ALTER TABLE campaign_context add CONSTRAINT campaign_context PRIMARY KEY (campaign_context_id) ALTER TABLE campaign_context add CONSTRAINT campaign_context_campaign_fk FOREIGN KEY (campaign_id) REFERENCES campaign(campaign_id)
Source code:
Campaign_Context:
@Entity
@Table(name = "CAMPAIGN_CONTEXT")
@SequenceGenerator(name = "campaign_context_sequence", sequenceName = "campaign_context_sequence")
@NamedQueries({@NamedQuery(name = "CampaignContext.findByCampaignContextId", query = "SELECT c FROM CampaignContext c WHERE c.campaignContextId = :campaignContextId"), @NamedQuery(name = "CampaignContext.findByCampaignName", query = "SELECT c FROM CampaignContext c WHERE c.campaignName = :campaignName"), @NamedQuery(name = "CampaignContext.findByBrandName", query = "SELECT c FROM CampaignContext c WHERE c.brandName = :brandName"), @NamedQuery(name = "CampaignContext.findByActive", query = "SELECT c FROM CampaignContext c WHERE c.active = :active"), @NamedQuery(name = "CampaignContext.findByDescription", query = "SELECT c FROM CampaignContext c WHERE c.description = :description")})
public class CampaignContext implements Serializable {
@Id
@GeneratedValue(strategy=GenerationType.SEQUENCE, generator = "campaign_context_sequence")
@Column(name = "CAMPAIGN_CONTEXT_ID", nullable = false)
private Integer campaignContextId;
@Column(name = "CAMPAIGN_NAME")
private String campaignName;
@Column(name = "BRAND_NAME")
private String brandName;
@Column(name = "ACTIVE")
private Short active;
@Column(name = "DESCRIPTION")
private String description;
@Column(name = "MARKET_ID")
private Integer marketId;
@JoinColumn(name = "CUSTOMER_ID", referencedColumnName = "CUSTOMER_ID")
@ManyToOne
private Customer customerId;
@OneToOne(cascade={CascadeType.REMOVE})
@JoinColumn(name="CAMPAIGN_ID", referencedColumnName = "CAMPAIGN_ID")
private Campaign campaign;
Campaign:
@Entity
@Table(name = "CAMPAIGN")
@SequenceGenerator(name = "campaign_sequence", sequenceName = "campaign_sequence")
@NamedQueries({@NamedQuery(name = "Campaign.findByCampaignId", query = "SELECT c FROM Campaign c WHERE c.campaignId = :campaignId"), @NamedQuery(name = "Campaign.findByCampaignName", query = "SELECT c FROM Campaign c WHERE c.campaignName = :campaignName"), @NamedQuery(name = "Campaign.findByCampaignType", query = "SELECT c FROM Campaign c WHERE c.campaignType = :campaignType"), @NamedQuery(name = "Campaign.findBySummaryFlag", query = "SELECT c FROM Campaign c WHERE c.summaryFlag = :summaryFlag"), @NamedQuery(name = "Campaign.findByStartDate", query = "SELECT c FROM Campaign c WHERE c.startDate = :startDate"), @NamedQuery(name = "Campaign.findByEndDate", query = "SELECT c FROM Campaign c WHERE c.endDate = :endDate"), @NamedQuery(name = "Campaign.findByExternalId", query = "SELECT c FROM Campaign c WHERE c.externalId = :externalId"), @NamedQuery(name = "Campaign.findByUsername", query = "SELECT c FROM Campaign c WHERE c.username = :username"), @NamedQuery(name = "Campaign.findByPassword", query = "SELECT c FROM Campaign c WHERE c.password = :password"), @NamedQuery(name = "Campaign.findByService", query = "SELECT c FROM Campaign c WHERE c.service = :service"), @NamedQuery(name = "Campaign.findByDescription", query = "SELECT c FROM Campaign c WHERE c.description = :description")})
public class Campaign implements Serializable {
@Id
@GeneratedValue(strategy=GenerationType.SEQUENCE, generator = "campaign_sequence")
@Column(name = "CAMPAIGN_ID", nullable = false)
private Integer campaignId;
@Column(name = "CAMPAIGN_NAME")
private String campaignName;
@Column(name = "CAMPAIGN_TYPE")
private String campaignType;
@Column(name = "SUMMARY_FLAG")
private String summaryFlag;
@Column(name = "START_DATE")
@Temporal(TemporalType.DATE)
private Date startDate;
@Column(name = "END_DATE")
@Temporal(TemporalType.DATE)
private Date endDate;
@Column(name = "EXTERNAL_ID")
private BigInteger externalId;
@Column(name = "USERNAME")
private String username;
@Column(name = "PASSWORD")
private String password;
@Column(name = "SERVICE")
private String service;
@Column(name = "DESCRIPTION")
private String description;
@OneToOne(cascade={CascadeType.ALL})
@JoinColumn(name="SCHEDULER_ID", referencedColumnName = "SCHEDULER_ID")
private Scheduler scheduler;
@OneToOne(cascade={CascadeType.REMOVE})
@JoinColumn(name="CAMPAIGN_ID", referencedColumnName = "CAMPAIGN_ID")
private CampaignContext campaignContext;
The error occurs in the second line:
campaign = bean.getCampaign(id); campaignContext = campaign.getCampaignContext();
I hope someone understands my problem and can give me a hint.
Thanks in advance