Hi,
My object model is: Company has BusinessUnits. A BusinessUnit has Probes.
I need to add a Probe to a BusinessUnit. A Probe must have a reference to a
MonitoringTool.
COMPANY
|
|
depends
|
|
BUSINESSUNIT
|
|
depends
|
|
PROBE ----- references -----> MONITORINGTOOL
Here is the excerpt from the mapping file.
<class name="com.company.product.Company" identity="companyID"
key-generator="SEQUENCE">
<cache-type type="count-limited" capacity="200"/>
<description>Company</description>
<map-to table="Companies"/>
<field name="companyID" type="integer">
<sql name="companyID" type="numeric"/>
</field>
<field name="companyCode" type="string">
<sql name="code" type="varchar"/>
</field>
[...]
<field name="businessUnits"
type="com.company.product.BusinessUnit" collection="arraylist">
</field>
</class>
<class name="com.company.product.BusinessUnit" identity="businessUnitID"
depends="com.company.product.Company" key-generator="SEQUENCE">
<cache-type type="count-limited" capacity="200"/>
<description>Business Unit</description>
<map-to table="BusinessUnits"/>
<field name="businessUnitID" type="integer">
<sql name="businessUnitID" type="numeric"/>
</field>
<field name="company" type="com.company.product.Company"
required="true">
<sql name="companyID"/>
</field>
<field name="code" type="string">
<sql name="code" type="varchar"/>
</field>
[...]
<field name="probes" type="com.company.product.Probe"
collection="arraylist">
</field>
</class>
<class name="com.company.product.Probe" identity="probeID"
depends="com.company.product.BusinessUnit"
key-generator="SEQUENCE">
<cache-type type="count-limited" capacity="200"/>
<description>Probe</description>
<map-to table="Probes"/>
<field name="probeID" type="integer">
<sql name="probeID" type="numeric"/>
</field>
<field name="businessUnit" type="com.company.product.BusinessUnit"
required="true">
<sql name="businessunitID"/>
</field>
[...]
<field name="monitoringTool"
type="com.company.product.MonitoringTool" check="ignore">
<sql name="monitoringToolID"/>
</field>
</class>
<class name="com.company.product.MonitoringTool"
identity="monitoringToolID"
key-generator="SEQUENCE">
<cache-type type="count-limited" capacity="5"/>
<description>Monitoring Tools</description>
<map-to table="MonitoringTools"/>
<field name="monitoringToolID" type="integer">
<sql name="monitoringToolID" type="numeric"/>
</field>
<field name="description" type="string">
<sql name="description" type="varchar"/>
</field>
</class>
The following method is a SessionBean method (JBoss 2.4.3)
public Probe addProbe(BusinessUnit bu, Probe p) throws ...
{
try {
Company c = (Company)
pm.findByPrimaryKey(com.company.product.Company.class, new
Integer(bu.getCompany().getCompanyID()));
BusinessUnit bunit = c.getBusinessUnit(bu.getCode());
Probe probe = new Probe(p); // create server-side probe
MonitoringTool mt = (MonitoringTool)
pm.findByPrimaryKey(com.company.product.MonitoringTool.class,
new
Integer(p.getMonitoringTool().getMonitoringToolID()));
System.out.println("MT found " + mt.getMonitoringToolID());
probe.setMonitoringTool(mt);
System.out.println("Assigned MT ID " +
probe.getMonitoringTool().getMonitoringToolID());
bunit.addProbe(probe);
System.out.println("Probe added : " + probe);
System.out.println("Whole BU " + bunit);
return probe;
}
catch(...)
}
It seems that until the method returns (transactions are bean-managed, with
tx ="Required"), everything is good :
[Default] MT found 201
[Default] Assigned MT ID 201
[Default] Probe added : Probe 0 FDLT-PRB1 bU: FDLT-BUS1 MonitoringTool201
[Default] Whole BU BU 286 has probes: 1
Probe 0: Probe 0 FDLT-PRB1 bU: FDLT-BUS1 MonitoringTool
201 belongs to: FDLT
What's more the object returned to the client contains the pointer to the
right MonitoringTool.
For some reason, the pointer to MonitoringTool does not get persisted.
What am I missing?
Any help is appreciated!
-- Jacek
Jacek Kruszelnicki
Numatica Corporation
E-mail: [EMAIL PROTECTED]
Phone: (781) 756 8064
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