Hi

I believe I'm hitting the following issue.

I have X1 and X2 that are new objects. They both rely on Y. The
entities are set to "cascade persist".

When i do this, it fails with a primary key violation, presumably
because Y is already persisted. (pseudo code)

X1.setY(Y);
X2.setY(Y);
List a = new List().add(X1).add(X2);
ebeanServer.save(a); //primary key violation on Y.

When i explicitly insert a transaction in there, and set the mode to
batch, the primary key violation disappears.
Could ebean be changed so that an implicit transaction is opened on
save(collection) ?

The problem really is that ebean is trying to do a insert on the
second Y, when really Y now does exist in the DB store.

Or am i missing something?
Chris

Works:
==========
final User u = new User();
u.setEmailAddress("test@test.com");
u.setName("Mr Test");
u.setPassword("password");

final List bookmarks = new ArrayList();
final Bookmark b1 = new Bookmark();
b1.setBookmarkReference("Acts 2:7-20");
b1.setUser(u);

final Bookmark b2 = new Bookmark();
b2.setBookmarkReference("Acts 7:1-20");
b2.setUser(u);

bookmarks.add(b1);
bookmarks.add(b2);

final Transaction tx = this.ebean.beginTransaction();
tx.setBatchMode(true);
this.ebean.save(bookmarks);
tx.commit();
this.ebean.endTransaction();

Doesn't work:

final User u = new User();
u.setEmailAddress("test@test.com");
u.setName("Mr Test");
u.setPassword("password");

final List bookmarks = new ArrayList();
final Bookmark b1 = new Bookmark();
b1.setBookmarkReference("Acts 2:7-20");
b1.setUser(u);

final Bookmark b2 = new Bookmark();
b2.setBookmarkReference("Acts 7:1-20");
b2.setUser(u);

bookmarks.add(b1);
bookmarks.add(b2);

this.ebean.save(bookmarks);

======
user

package com.tyndalehouse.step.core.data.entities;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

/**
* represents a user entity. A user contains a username and password.
*
* @author Chris
*
*/
@Entity
public class User {
@Id
@GeneratedValue
private Integer id;

@Column
private String name;

@Column
private String password;

@Column
private String emailAddress;

@Column
private String country;

/**
* @return the id
*/
public Integer getId() {
return this.id;
}

/**
* @param id the id to set
*/
public void setId(final Integer id) {
this.id = id;
}

/**
* @return the password
*/
public String getPassword() {
return this.password;
}

/**
* @param password the password to set
*/
public void setPassword(final String password) {
this.password = password;
}

/**
* @return the name
*/
public String getName() {
return this.name;
}

/**
* @param name the name to set
*/
public void setName(final String name) {
this.name = name;
}

/**
* @return the emailAddress
*/
public String getEmailAddress() {
return this.emailAddress;
}

/**
* @param emailAddress the emailAddress to set
*/
public void setEmailAddress(final String emailAddress) {
this.emailAddress = emailAddress;
}

/**
* @return the country
*/
public String getCountry() {
return this.country;
}

/**
* @param country the country to set
*/
public void setCountry(final String country) {
this.country = country;
}
}

=====

package com.tyndalehouse.step.core.data.entities;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.ManyToOne;

/**
* A user may have multiple bookmarks
*
* @author Chris
*
*/
@Entity
public class Bookmark {
@Id
@GeneratedValue
private Integer id;

@Column
private String bookmarkReference;

@ManyToOne(cascade = CascadeType.PERSIST)
@Column
private User user;

/**
* @return the id
*/
public Integer getId() {
return this.id;
}

/**
* @param id the id to set
*/
public void setId(final Integer id) {
this.id = id;
}

/**
* @return the bookmarkReference
*/
public String getBookmarkReference() {
return this.bookmarkReference;
}

/**
* @param bookmarkReference the bookmarkReference to set
*/
public void setBookmarkReference(final String bookmarkReference) {
this.bookmarkReference = bookmarkReference;
}

/**
* @return the user
*/
public User getUser() {
return this.user;
}

/**
* @param user the user to set
*/
public void setUser(final User user) {
this.user = user;
}
}