Emissions is a polymorphic object, extending from Node:
<!-- Mapping for Emissions -->
<class name="org.openeco.footprint.model.Emissions"
extends="com.codemagi.servlets.model.Node" identity="id">
<description>An actual emission for one month</description>
<cache-type type="none"/>
<map-to table="emissions_data" xml="emissions-data" />
<field name="id" type="integer">
<sql dirty="ignore" name="node_id" type="integer"/>
<bind-xml name="id" node="element"/>
</field>
<field name="source" type="org.openeco.footprint.model.Source">
<sql dirty="ignore" name="source_id"/>
<bind-xml name="source" node="element"/>
</field>
<field name="sourceName" type="org.openeco.footprint.model.SourceName">
<sql dirty="ignore" name="source_name_id"/>
<bind-xml name="source-name" node="element"/>
</field>
<field name="orgId" type="integer">
<sql dirty="ignore" name="org_id" type="integer"/>
<bind-xml name="org-id" node="element"/>
</field>
<field name="startDate" type="date">
<sql dirty="ignore" name="start_date" type="date"/>
<bind-xml name="start-date" node="element"/>
</field>
<field name="CO2" type="float" >
<sql name="co2_emissions" type="numeric"/>
<bind-xml name="CO2" node="element"/>
</field>
<field name="CH4" type="float" >
<sql name="ch4_emissions" type="numeric"/>
<bind-xml name="CH4" node="element"/>
</field>
<field name="N2O" type="float" >
<sql name="n2o_emissions" type="numeric"/>
<bind-xml name="N2O" node="element"/>
</field>
<field name="HFC" type="float" >
<sql name="hfc_emissions" type="numeric"/>
<bind-xml name="HFC" node="element"/>
</field>
<field name="PFC" type="float" >
<sql name="pfc_emissions" type="numeric"/>
<bind-xml name="PFC" node="element"/>
</field>
<field name="SF6" type="float" >
<sql name="sf6_emissions" type="numeric"/>
<bind-xml name="SF6" node="element"/>
</field>
<field name="totalCO2" type="float" >
<sql name="total_co2_equivalent" type="numeric"/>
<bind-xml name="total-co2" node="element"/>
</field>
<field name="type" type="org.openeco.footprint.model.FuelType">
<sql name="fuel_type_id"/>
<bind-xml name="fuel-type" node="element"/>
</field>
<field name="fuelUnit" type="org.openeco.ghg.model.Units">
<sql name="fuel_unit_id" />
<bind-xml name="fuel-unit" node="element"/>
</field>
<field name="fuelAmount" type="float" >
<sql name="fuel_amount" type="numeric"/>
<bind-xml name="fuel-amount" node="element"/>
</field>
<field name="activityUnit" type="org.openeco.ghg.model.Units">
<sql name="activity_unit_id" />
<bind-xml name="activity-unit" node="element"/>
</field>
<field name="activityAmount" type="float" >
<sql name="activity_amount" type="numeric"/>
<bind-xml name="activity-amount" node="element"/>
</field>
</class>
<!-- Mapping for Node -->
<class name="com.codemagi.servlets.model.Node" identity="id"
key-generator="IDENTITY">
<cache-type type="none"/>
<description>Node, the base class for all object types</description>
<map-to table="node" xml="node" />
<field name="id" type="integer">
<sql dirty="ignore" name="node_id" type="integer"/>
<bind-xml name="id" node="element"/>
</field>
<field name="name" type="string" >
<sql dirty="ignore" name="node_name" type="varchar"/>
<bind-xml name="name" node="element"/>
</field>
<field name="className" type="string" >
<sql dirty="ignore" name="class_name" type="varchar"/>
<bind-xml name="class-name" node="element"/>
</field>
<field name="createdBy" type="org.openeco.login.model.User">
<sql dirty="ignore" name="created_by" />
<bind-xml name="created-by" node="element" transient="true" />
</field>
<field name="createdDate" type="date">
<sql dirty="ignore" name="created_date" type="timestamp"/>
<bind-xml name="created-date" node="element"/>
</field>
<field name="modifiedBy" type="org.openeco.login.model.User">
<sql dirty="ignore" name="modified_by" />
<bind-xml name="modified-by" node="element" transient="true"/>
</field>
<field name="modifiedDate" type="date">
<sql dirty="ignore" name="modified_date" type="timestamp"/>
<bind-xml name="modified-date" node="element"/>
</field>
<field name="ipAddress" type="string" >
<sql dirty="ignore" name="ip_address" type="varchar"/>
<bind-xml name="ip-address" node="element"/>
</field>
<field name="parent" type="com.codemagi.servlets.model.Node">
<sql dirty="ignore" name="parent_id" many-table="node_node_xref"
many-key="child_id" />
<bind-xml name="parent"/>
</field>
<field name="terms" type="com.codemagi.servlets.model.Term"
collection="arraylist">
<sql dirty="ignore" name="term_id" many-table="term_node_xref"
many-key="node_id" />
<bind-xml name="terms"/>
</field>
<field name="children" type="com.codemagi.servlets.model.Node"
collection="arraylist">
<sql dirty="ignore" name="child_id" many-table="node_node_xref"
many-key="parent_id" />
<bind-xml name="children"/>
</field>
<field name="users" type="org.openeco.login.model.User"
collection="arraylist">
<sql dirty="ignore" name="user_id" many-table="node_user_xref"
many-key="node_id" />
<bind-xml name="users"/>
</field>
</class>
----- Original Message ----
From: Werner Guttmann <[EMAIL PROTECTED]>
To: [email protected]
Sent: Friday, October 31, 2008 1:10:19 AM
Subject: Re: [castor-dev] Persistent Objects not updating in for loop
August,
what does the mapping look like for Emission entities ?
Werner
August Detlefsen wrote:
> Greetings. I am having an issue getting persistent objects to update when
> they are updated inside a for() loop. Here's the scenario:
>
> We are storing CO2 emissions over the course of a span of months. For each
> month, there is either an existing emission to be updated, or we need to
> create a new one.
>
> Any new objects we create in the course of the loop are getting added to the
> database properly, but existing objects that updated are not getting
> persisted and the changes do not show up in the DB.
>
> The code works like this:
>
> //load up all existing emissions in the span
>
>
> HashMap existingEmissions = new HashMap();
> oql = db.getOQLQuery(" SELECT e FROM
> org.openeco.footprint.model.Emissions e " +
> " WHERE e.sourceName.id = $1 " +
> " AND e.startDate >= $2 AND e.startDate <=
> $3 ");
> oql.bind(name.getId());
> oql.bind(startDate);
> oql.bind(endDate);
>
> results = oql.execute();
> while (results.hasMore()) {
> Emissions e = (Emissions)results.next();
> existingEmissions.put(e.getStartDate(), e);
> }
>
> // Explicitly close the QueryResults
>
>
> results.close();
>
> // Explicitly close the OQLQuery
>
>
> oql.close();
>
> //for each month in the span, create or edit emission
>
>
> for (int i = 0; i < span; i++) {
>
> Date emissionDate = DateUtils.addMonths(startDate, i);
> log.debug("Checking for emission with name: " + name.getId()
> + " and date: " + emissionDate);
>
> Emissions emission =
> (Emissions)existingEmissions.get(emissionDate);
> log.debug("Existing emissions: " + emission + " persistent? "
> + db.isPersistent(emission));
> if (emission == null) {
> emission = new Emissions();
> emission.setSourceName(name);
> emission.setStartDate( emissionDate );
> }
>
> //set new values into emission
> emission.setCO2(CO2);
> emission.setCH4(CH4);
> emission.setN2O(N2O);
> emission.setHFC(HFC);
> emission.setPFC(PFC);
> emission.setSF6(SF6);
> emission.setTotalCO2(totalCO2);
>
> if (emission.getId() == null) {
> log.debug("Creating new emission: " + emission);
> db.create(emission);
> }
>
> }
>
> //save changes to db
>
>
> log.debug("About to commit...");
> db.commit();
> log.debug("Done.");
>
>
> I've checked all the code and eliminated all the usual suspects:
>
> - Emissions are not loaded with Database.ReadOnly
> - Added and removed <sql dirty="ignore" from mappings
> - No access="read-only" in mappings
> - The database user does have UPDATE permissions on the table in question
>
> In addition, we have a separate method that just updates a single existing
> Emissions and that method does store the changes properly in the database, so
> we know that there is nothing preventing this object from being updated under
> normal circumstances.
>
> So what could be causing this? Are there any known issues with JDO updates
> inside a for() loop?
>
> Thanks,
> August
>
>
>
>
>
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