Hello Ralf,
I am sorry, I described the problem incorrectly.
The problem occurs only with 1:N relations.
I have attached the relevant DDL and mapping parts and
the the source files. I am working with Castor 0.9.9
and SapDB 7.4.
In my example, I have the following relation:
Systemstates 1 ------ n State
I supposed that the key-generator generates values for
the field "id" in both tables AND the field
"systemstates" in table "state", when I call
db.create(systemStates), where systemStates is an
instance of Systemstates.
But the field "systemstates" is not initialized.
Stefan
--- Ralf Joachim <[EMAIL PROTECTED]>
schrieb:
> Hi Stefan,
>
> this should normally work. Can you provide us with
> some more information
> e.g. castor version, database, mapping.
>
> Ralf
>
> Stefan Lober schrieb:
>
> >Hello,
> >
> >while working with Castor JDO, I came across the
> >following problem:
> >My database mapping file contains one top-level
> >element which references the other elements. All
> >referenced elements are declared with "depends" set
> to
> >the top-level element. Thus, they are dependent on
> >this element. All elements have "key-generator" set
> to
> >"MAX".
> >When I try to insert a set of data by calling
> >db.create(...) with the top-level element as
> parameter
> >and no keys initialized for any element in the
> >hierarchy, I get an exception from my database
> which
> >tells me "Missing non-NULL value". This occurs
> because
> >the id (foreign key) for the referenced elements
> have
> >not been initialized.
> >Is the Key-Generator not supposed to initialize
> >private keys (set by "identity") AND the respective
> >foreign keys?
> >
> >Stefan
> >
> >
> >
> >
> >
> >
>
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> >
>
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Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher kostenlos - Hier anmelden:
http://mail.yahoo.dedrop table Systemstates
//
create table Systemstates (
id integer not null,
primary key(id)
)
//
drop table State
//
create table State (
id integer not null,
stateMoment varchar(200),
stamptime varchar(200),
systemstates integer not null,
content varchar(200),
primary key(id)
)
<class cst:name="log.Systemstates" cst:depends="log.Log1" cst:identity="id" cst:key-generator="MAX">
<description>Default mapping for class log.Systemstates</description>
<map-to cst:table="Systemstates" cst:xml="systemstates"/>
<field cst:name="id" cst:type="integer">
<sql name="id" type="integer" dirty="check"/>
<bind-xml name="id" node="attribute"/>
</field>
<field cst:name="state" cst:type="log.State" cst:required="true" cst:collection="array">
<sql many-key="state" dirty="check"/>
<bind-xml name="state" node="element"/>
</field>
</class>
<class cst:name="log.State" cst:depends="log.Systemstates" cst:identity="id" cst:key-generator="MAX">
<description>Default mapping for class log.State</description>
<map-to cst:table="State" cst:xml="state"/>
<field cst:name="id" cst:type="integer">
<sql name="id" type="integer" dirty="check"/>
<bind-xml name="id" node="attribute"/>
</field>
<field cst:name="stateMoment" cst:type="string" cst:required="true">
<sql name="stateMoment" type="char" dirty="check"/>
<bind-xml name="state-moment" node="attribute"/>
</field>
<field cst:name="stamptime" cst:type="string" cst:required="true">
<sql name="stamptime" type="char" dirty="check"/>
<bind-xml name="stamptime" node="attribute"/>
</field>
<field cst:name="systemstates" cst:type="log.Systemstates">
<sql name="systemstates" dirty="check"/>
<bind-xml name="systemstates" node="element"/>
</field>
<field cst:name="content" cst:type="string">
<sql name="content" type="char" dirty="check"/>
<bind-xml name="PCDATA" node="text"/>
</field>
</class>/*
* This class was automatically generated with
*
Castor 0.9.9, using an XML
* Schema.
* $Id$
*/
package log;
//---------------------------------/
//- Imported classes and packages -/
//---------------------------------/
import java.io.IOException;
import java.io.Reader;
import java.io.Serializable;
import java.io.Writer;
import java.util.Enumeration;
import java.util.Vector;
import org.exolab.castor.xml.MarshalException;
import org.exolab.castor.xml.Marshaller;
import org.exolab.castor.xml.Unmarshaller;
import org.exolab.castor.xml.ValidationException;
import org.xml.sax.ContentHandler;
/**
* Class Systemstates.
*
* @version $Revision$ $Date$
*/
public class Systemstates implements java.io.Serializable {
//--------------------------/
//- Class/Member Variables -/
//--------------------------/
/**
* Field _id
*/
private int _id;
/**
* keeps track of state for field: _id
*/
private boolean _has_id;
/**
* Field _stateList
*/
private java.util.Vector _stateList;
//----------------/
//- Constructors -/
//----------------/
public Systemstates()
{
super();
_stateList = new Vector();
} //-- log.Systemstates()
//-----------/
//- Methods -/
//-----------/
/**
* Method addState
*
*
*
* @param vState
*/
public void addState(log.State vState)
throws java.lang.IndexOutOfBoundsException
{
_stateList.addElement(vState);
} //-- void addState(log.State)
/**
* Method addState
*
*
*
* @param index
* @param vState
*/
public void addState(int index, log.State vState)
throws java.lang.IndexOutOfBoundsException
{
_stateList.insertElementAt(vState, index);
} //-- void addState(int, log.State)
/**
* Method deleteId
*
*/
public void deleteId()
{
this._has_id= false;
} //-- void deleteId()
/**
* Method enumerateState
*
*
*
* @return Enumeration
*/
public java.util.Enumeration enumerateState()
{
return _stateList.elements();
} //-- java.util.Enumeration enumerateState()
/**
* Returns the value of field 'id'.
*
* @return int
* @return the value of field 'id'.
*/
public int getId()
{
return this._id;
} //-- int getId()
/**
* Method getState
*
*
*
* @param index
* @return State
*/
public log.State getState(int index)
throws java.lang.IndexOutOfBoundsException
{
//-- check bounds for index
if ((index < 0) || (index > _stateList.size())) {
throw new IndexOutOfBoundsException("getState: Index value '"+index+"' not in range [0.."+_stateList.size()+ "]");
}
return (log.State) _stateList.elementAt(index);
} //-- log.State getState(int)
/**
* Method getState
*
*
*
* @return State
*/
public log.State[] getState()
{
int size = _stateList.size();
log.State[] mArray = new log.State[size];
for (int index = 0; index < size; index++) {
mArray[index] = (log.State) _stateList.elementAt(index);
}
return mArray;
} //-- log.State[] getState()
/**
* Method getStateCount
*
*
*
* @return int
*/
public int getStateCount()
{
return _stateList.size();
} //-- int getStateCount()
/**
* Method hasId
*
*
*
* @return boolean
*/
public boolean hasId()
{
return this._has_id;
} //-- boolean hasId()
/**
* Method isValid
*
*
*
* @return boolean
*/
public boolean isValid()
{
try {
validate();
}
catch (org.exolab.castor.xml.ValidationException vex) {
return false;
}
return true;
} //-- boolean isValid()
/**
* Method marshal
*
*
*
* @param out
*/
public void marshal(java.io.Writer out)
throws org.exolab.castor.xml.MarshalException, org.exolab.castor.xml.ValidationException
{
Marshaller.marshal(this, out);
} //-- void marshal(java.io.Writer)
/**
* Method marshal
*
*
*
* @param handler
*/
public void marshal(org.xml.sax.ContentHandler handler)
throws java.io.IOException, org.exolab.castor.xml.MarshalException, org.exolab.castor.xml.ValidationException
{
Marshaller.marshal(this, handler);
} //-- void marshal(org.xml.sax.ContentHandler)
/**
* Method removeAllState
*
*/
public void removeAllState()
{
_stateList.removeAllElements();
} //-- void removeAllState()
/**
* Method removeState
*
*
*
* @param index
* @return State
*/
public log.State removeState(int index)
{
java.lang.Object obj = _stateList.elementAt(index);
_stateList.removeElementAt(index);
return (log.State) obj;
} //-- log.State removeState(int)
/**
* Sets the value of field 'id'.
*
* @param id the value of field 'id'.
*/
public void setId(int id)
{
this._id = id;
this._has_id = true;
} //-- void setId(int)
/**
* Method setState
*
*
*
* @param index
* @param vState
*/
public void setState(int index, log.State vState)
throws java.lang.IndexOutOfBoundsException
{
//-- check bounds for index
if ((index < 0) || (index > _stateList.size())) {
throw new IndexOutOfBoundsException("setState: Index value '"+index+"' not in range [0.."+_stateList.size()+ "]");
}
_stateList.setElementAt(vState, index);
} //-- void setState(int, log.State)
/**
* Method setState
*
*
*
* @param stateArray
*/
public void setState(log.State[] stateArray)
{
//-- copy array
_stateList.removeAllElements();
for (int i = 0; i < stateArray.length; i++) {
_stateList.addElement(stateArray[i]);
}
} //-- void setState(log.State)
/**
* Method unmarshal
*
*
*
* @param reader
* @return Systemstates
*/
public static log.Systemstates unmarshal(java.io.Reader reader)
throws org.exolab.castor.xml.MarshalException, org.exolab.castor.xml.ValidationException
{
return (log.Systemstates) Unmarshaller.unmarshal(log.Systemstates.class, reader);
} //-- log.Systemstates unmarshal(java.io.Reader)
/**
* Method validate
*
*/
public void validate()
throws org.exolab.castor.xml.ValidationException
{
org.exolab.castor.xml.Validator validator = new org.exolab.castor.xml.Validator();
validator.validate(this);
} //-- void validate()
}
/*
* This class was automatically generated with
*
Castor 0.9.9, using an XML
* Schema.
* $Id$
*/
package log;
//---------------------------------/
//- Imported classes and packages -/
//---------------------------------/
import java.io.IOException;
import java.io.Reader;
import java.io.Serializable;
import java.io.Writer;
import org.exolab.castor.xml.MarshalException;
import org.exolab.castor.xml.Marshaller;
import org.exolab.castor.xml.Unmarshaller;
import org.exolab.castor.xml.ValidationException;
import org.xml.sax.ContentHandler;
/**
* Class State.
*
* @version $Revision$ $Date$
*/
public class State implements java.io.Serializable {
//--------------------------/
//- Class/Member Variables -/
//--------------------------/
/**
* Field _id
*/
private int _id;
/**
* keeps track of state for field: _id
*/
private boolean _has_id;
/**
* Field _stateMoment
*/
private java.lang.String _stateMoment;
/**
* Field _stamptime
*/
private java.lang.String _stamptime;
/**
* internal content storage
*/
private java.lang.String _content = "";
/**
* Field _systemstates
*/
private log.Systemstates _systemstates;
//----------------/
//- Constructors -/
//----------------/
public State()
{
super();
setContent("");
} //-- log.State()
//-----------/
//- Methods -/
//-----------/
/**
* Method deleteId
*
*/
public void deleteId()
{
this._has_id= false;
} //-- void deleteId()
/**
* Returns the value of field 'content'. The field 'content'
* has the following description: internal content storage
*
* @return String
* @return the value of field 'content'.
*/
public java.lang.String getContent()
{
return this._content;
} //-- java.lang.String getContent()
/**
* Returns the value of field 'id'.
*
* @return int
* @return the value of field 'id'.
*/
public int getId()
{
return this._id;
} //-- int getId()
/**
* Returns the value of field 'stamptime'.
*
* @return String
* @return the value of field 'stamptime'.
*/
public java.lang.String getStamptime()
{
return this._stamptime;
} //-- java.lang.String getStamptime()
/**
* Returns the value of field 'stateMoment'.
*
* @return String
* @return the value of field 'stateMoment'.
*/
public java.lang.String getStateMoment()
{
return this._stateMoment;
} //-- java.lang.String getStateMoment()
/**
* Returns the value of field 'systemstates'.
*
* @return Systemstates
* @return the value of field 'systemstates'.
*/
public log.Systemstates getSystemstates()
{
return this._systemstates;
} //-- log.Systemstates getSystemstates()
/**
* Method hasId
*
*
*
* @return boolean
*/
public boolean hasId()
{
return this._has_id;
} //-- boolean hasId()
/**
* Method isValid
*
*
*
* @return boolean
*/
public boolean isValid()
{
try {
validate();
}
catch (org.exolab.castor.xml.ValidationException vex) {
return false;
}
return true;
} //-- boolean isValid()
/**
* Method marshal
*
*
*
* @param out
*/
public void marshal(java.io.Writer out)
throws org.exolab.castor.xml.MarshalException, org.exolab.castor.xml.ValidationException
{
Marshaller.marshal(this, out);
} //-- void marshal(java.io.Writer)
/**
* Method marshal
*
*
*
* @param handler
*/
public void marshal(org.xml.sax.ContentHandler handler)
throws java.io.IOException, org.exolab.castor.xml.MarshalException, org.exolab.castor.xml.ValidationException
{
Marshaller.marshal(this, handler);
} //-- void marshal(org.xml.sax.ContentHandler)
/**
* Sets the value of field 'content'. The field 'content' has
* the following description: internal content storage
*
* @param content the value of field 'content'.
*/
public void setContent(java.lang.String content)
{
this._content = content;
} //-- void setContent(java.lang.String)
/**
* Sets the value of field 'id'.
*
* @param id the value of field 'id'.
*/
public void setId(int id)
{
this._id = id;
this._has_id = true;
} //-- void setId(int)
/**
* Sets the value of field 'stamptime'.
*
* @param stamptime the value of field 'stamptime'.
*/
public void setStamptime(java.lang.String stamptime)
{
this._stamptime = stamptime;
} //-- void setStamptime(java.lang.String)
/**
* Sets the value of field 'stateMoment'.
*
* @param stateMoment the value of field 'stateMoment'.
*/
public void setStateMoment(java.lang.String stateMoment)
{
this._stateMoment = stateMoment;
} //-- void setStateMoment(java.lang.String)
/**
* Sets the value of field 'systemstates'.
*
* @param systemstates the value of field 'systemstates'.
*/
public void setSystemstates(log.Systemstates systemstates)
{
this._systemstates = systemstates;
} //-- void setSystemstates(log.Systemstates)
/**
* Method unmarshal
*
*
*
* @param reader
* @return State
*/
public static log.State unmarshal(java.io.Reader reader)
throws org.exolab.castor.xml.MarshalException, org.exolab.castor.xml.ValidationException
{
return (log.State) Unmarshaller.unmarshal(log.State.class, reader);
} //-- log.State unmarshal(java.io.Reader)
/**
* Method validate
*
*/
public void validate()
throws org.exolab.castor.xml.ValidationException
{
org.exolab.castor.xml.Validator validator = new org.exolab.castor.xml.Validator();
validator.validate(this);
} //-- void validate()
}
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