I have an application that gathers a bit of it’s data using entities created with hibernat, The rest is gathered with a simple jdbc database connection and sql statements. Saving is also the same. I recently upgraded the database to Postgresql 9.0 from Postgresql 8.4 and noticed all data gathered with the entities does not display any more. I can save data with the entites, but can not display that same data.
I upgraded to Hibernate 3.6.2 with no fix, I also updated to the latest JDBC3 driver from postgresql 9.0-801. Neither of these fixed the issue.
Here is one of the entities that does work. I have not changed since the DB upgrade.
package com.ajrs.entities;
import java.io.Serializable;
import javax.persistence.*;
import static javax.persistence.GenerationType.*;
@Entity
@Table(name="lk_note_category")
@NamedQueries({
@NamedQuery(
name="LkNoteCategory.getAll",
query="SELECT l FROM LkNoteCategory l"
)
})
public class LkNoteCategory implements Serializable {
@Id
private String category;
private String description;
private boolean default_category;
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public boolean isDefault_category() {
return default_category;
}
public void setDefault_category(boolean default_category) {
this.default_category = default_category;
}
}
So I create the note categories object with the following:
noteCategories = em.createNamedQuery("LkNoteCategory.getAll").getResultList();
That one loads up and according to my netbeans debugger gets all categories.
Here is an entity that does not work.
enter code herepackage com.ajrs.entities;
import java.io.Serializable;
import java.sql.Timestamp;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import static javax.persistence.CascadeType.*;
import javax.persistence.GeneratedValue;
import static javax.persistence.GenerationType.*;
import javax.persistence.NamedNativeQuery;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.PrePersist;
import javax.persistence.PreUpdate;
import javax.persistence.SequenceGenerator;
import javax.persistence.Transient;
@Entity
@NamedQueries({
@NamedQuery(
name="Note.oldgetByClaimNo",
query="select n from Note n where n.claimNo = :claim_no order by n.created"
),
@NamedQuery(
name="Note.getByCategoryAndSubcategory",
query="select n from Note n where n.claimNo = :claim_no and n.category = :category and n.subcategory = :subcategory order by n.created"
)
})
@NamedNativeQuery(name="Note.getByClaimNo",
query=
"select claim_no, userid, date, note, category, subcategory, note_id from "+
"( select 1 as ord1, extract (epoch from date) as ord2, claim_no, userid, date, note, category, subcategory, note_id "+
" from note " +
" where claim_no = :claim_no "+
" and(subcategory is null or category != 'VI') " +
" and date <= (select coalesce(min(date),'1/1/3999') " +
" from note n2 " +
" where n2.claim_no = note.claim_no " +
" and (n2.subcategory is not null " +
" and n2.category = 'VI')" +
" ) "+
" union "+
" select 2 as ord1, sort_order as ord2, claim_no, userid, date, note, category, subcategory, note_id " +
" from(select note.*, sort_order " +
" from note inner join lk_note_subcategory using(subcategory) "+
" where claim_no = :claim_no "+
" and (note.subcategory is not null and " +
" note.category = 'VI') "+
" ) as foo " +
" union " +
" select 3 as ord1, extract (epoch from date) as ord2, claim_no, userid, date, note, category, subcategory, note_id "+
" from note " +
" where claim_no = :claim_no "+
" and(subcategory is null or category != 'VI') " +
" and date > (select coalesce(min(date),'1/1/3999') " +
" from note n2 " +
" where n2.claim_no = note.claim_no " +
" and (n2.subcategory is not null " +
" and n2.category = 'VI')" +
" ) "+
") as dummy " +
"order by ord1, ord2"
, resultClass=Note.class)
public class Note implements Serializable {
public static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy=SEQUENCE, generator="NOTE_SEQUENCE_GENERATOR")
@SequenceGenerator(name="NOTE_SEQUENCE_GENERATOR", sequenceName="NOTE_NOTE_ID_SEQ")
private int note_id;
private String note;
private String userid;
@Column(name="claim_no")
private String claimNo;
@Column(name="date")
private Timestamp created;
private String category = "";
private String subcategory;
/* Transient properties */
@Transient
private boolean updated = false;
public String getUser() {
return userid; }
public void setUser(String u) {
userid = u;}
public String getNote() {
return note; }
public void setNote(String n) {
note = n; }
public String getClaimNo() {
return claimNo; }
public void setClaimNo(String c) {
claimNo = c; }
public Timestamp getTimestamp() {
return created;
}
public void setTimestamp(Timestamp timestamp) {
this.created = timestamp;
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
public String getSubcategory() {
return subcategory;
}
public void setSubcategory(String subcategory) {
this.subcategory = subcategory;
}
public boolean isUpdated() {
return updated;
}
public void setUpdated(boolean updated) {
this.updated = updated;
}
@PrePersist
@PreUpdate
private void fillDate() {
setTimestamp(new Timestamp(System.currentTimeMillis()));
}
}
And on this entity that does not work I use the following to create it.
currentNotesArray = em.createNamedQuery("Note.getByClaimNo").
setParameter("claim_no", claimNumber).getResultList();
I then look at this ArrayList with the debugger and it is Null, I have seen it at other stages as an ArrayList of size 0 as well.
Anyone have any ideas why this would be. I am stumped.
Grant
I figured this one out. Simple silly mistake. I had been using my development database for all data gathered with a simple database connection, Although I failed to change the persistence.xml over to the dev database. Once I did that there were no problems with displaying data.