Hi,

I've not put version information etc here as its not relative.

I'm new to Hibernate and having some problems with the concepts.

My problem is as follows.

I have the following concrete classes

CertificateStatementTitle
CertificateStatement

The relationship between classes is as follows:

CertificateStatementTitle has a 0 or more CertificateStatement.

My problem is that I need to have an admin function in my application whereby
I add statements without having to define a StatementTitle.

When I try to do this at the minute I am getting :

Caused by: java.sql.BatchUpdateException: ORA-02291: integrity constraint (DPCS.FKA29006CCA379C88B) violated - parent key not found

I think the problem is that my relationship is bi-directional so I can't insert a statement until
I have an existing StatementTitle.

So my question is really, how can I remove this bi-directional relationship and just keep it
that the StatementTitle has 0 or more Statments associated with it and that a Statement can
exist as its own entity.

I've added my code below.

thanks for any help in advance







(I have left out non relevant fields):

public class StatementTitle implements Serializable{

private Long id;
private Set statements = new HashSet();

public StatementTitle() {
}

public void setId(Long id) {
this.id = id;
}

public Long getId() {
return id;
}

public void setStatements(Set statements) {
this.statements = statements;
}

public Set getStatements() {
return statements;
}

public void addStatement(Statement statement) {

this.statements.add(statement);
statement.setStatementTitle(this);
}
}

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="ie.gov.agriculture.dpcs.cert.StatementTitle" table="DPCS_STATEMENT_TITLE">
<id name="id" type="long" unsaved-value="0">
<generator class="native"/>
</id>

<set name="statements" lazy="true" table="DPCS_STATEMEMT">
<key column="id"/>
<one-to-many class="ie.gov.agriculture.dpcs.cert.Statement"/>
</set>
</class>
</hibernate-mapping>


public class Statement implements Serializable{

private Long id;
private StatementTitle statementTitle = null;

public Statement() {
}

public void setId(Long id) {
this.id = id;
}

public Long getId() {
return id;
}

public StatementTitle getStatementTitle() {
return statementTitle;
}

public void setStatementTitle(StatementTitle statementTitle) {
this.statementTitle = statementTitle;
}
}

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="ie.gov.agriculture.dpcs.cert.Statement" table="DPCS_STATEMENT">
<id name="id" type="long" unsaved-value="0">
<generator class="native"/>
</id>
<many-to-one name="statementTitle"
class="ie.gov.agriculture.dpcs.cert.StatementTitle"
column="STATEMENT_TITLE"/>

</class>
</hibernate-mapping>