Our code is usually building the following query:
Code:
/* criteria query */ select
this_.ID as ID2_0_,
this_.rateDate as rateDate2_0_,
this_.ticker as ticker2_0_,
this_.currency as currency2_0_,
this_.rate as rate2_0_
from
BbgDailyRateData this_
where
this_.rateDate between to_date('2008-03-24 00:00:00', 'YYYY-MM-DD HH24:MI:SS')
and to_date('2008-03-24 23:59:59', 'YYYY-MM-DD HH24:MI:SS')
and this_.currency='USD'
Everynight we bounce our 4 servers and once or twice a week a server will end up trying to run the query as:
Code:
/* criteria query */ select
dailybbgra0_.ID as ID2_0_,
dailybbgra0_.rateDate as rateDate2_0_,
dailybbgra0_.ticker as ticker2_0_,
dailybbgra0_.currency as currency2_0_,
dailybbgra0_.rate as rate2_0_
from
BbgDailyRateData dailybbgra0_
where
this_.rateDate between to_date('2008-03-23 00:00:00',
'YYYY-MM-DD HH24:MI:SS') and to_date('2008-03-23 23:59:59', 'YYYY-MM-DD
HH24:MI:SS')
and this_.currency='USD'
without any changes to code or configuration. We quickly notice the problem and restart the server the and problem goes away.
The mapping is:
Code:
<?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="com.creditex.backoffice.defaultswap.BbgCdswData" table="TRADEBBGCDSW">
<cache usage="nonstrict-read-write" />
<id name="id">
<column name="ID" precision="10" scale="0" />
<generator class="assigned"/>
</id>
<property name="bbgTicker" column="bbgTicker" length="32" not-null="true" />
<property name="settlementDate" column="settlementDate" />
<property name="maturityDate" column="maturityDate" />
<property name="effectiveDate" column="effectiveDate" />
<property name="firstCouponDate" column="firstCouponDate" />
<property name="nextToLastCouponDate" column="nextToLastCouponDate" />
<property name="spread" column="spread" precision="8" scale="3" />
<property name="curveDate" column="curveDate" />
<property name="notional" column="notional" precision="12" scale="0" />
<property name="currency" column="currency" length="3" not-null="true" />
<property name="paymentFrequency" column="paymentFrequency" length="1" not-null="true" />
<property name="recoveryRate" column="recoveryRate" precision="7" scale="6" />
<property name="flatSpread" column="flatSpread" precision="8" scale="3" />
<property name="cnvBpv" column="cnvBpv" precision="10" scale="2" />
<property name="swapCurveBpv" column="swapCurveBpv" precision="10" scale="2" />
<property name="marketValue" column="marketValue" precision="10" scale="2" />
<property name="netAccruedInterest" column="netAccruedInterest" precision="10" scale="2" />
<property name="daysAccrued" column="daysAccrued" precision="4" scale="0" />
<property name="payCurveNumber" column="payCurveNumber" length="4" />
<property name="payCurveMktSide" column="payCurveMktSide" length="20" not-null="true" />
<property name="securityDescription" column="securityDescription" length="32" not-null="true" />
<property name="replSpread" column="replSpread" precision="8" scale="3" />
<property name="buySellFlag" column="buySellFlag" length="1" not-null="true">
<type name="com.creditex.db.hibernate.StringLabeledEnumUserType">
<param name="targetClass">com.creditex.trading.TradeDirection</param>
</type>
</property>
<property name="busDays1" column="busDays1" length="3" />
<property name="busDays2" column="busDays2" length="3" />
<property name="busDays3" column="busDays3" length="3" />
<property name="cashSettledOn" column="cashSettledOn" />
<property name="quotedPrice" column="quotedPrice" precision="12" scale="8" />
<property name="dealRecoveryRate" column="dealRecoveryRate" precision="7" scale="6" />
<property name="priceToSpreadMode" column="priceToSpreadMode" precision="1" scale="0" />
<property name="swapPremium" column="swapPremium" precision="12" scale="2" />
<property name="dateGenMethod" column="dateGenMethod" length="20" not-null="true" />
<property name="payAccrued" column="payAccrued" type="yes_no" length="1" />
</class>
</hibernate-mapping>
and the Java we are running is:
Code:
Date from = DateUtils.getStartOfDay(date);
Date to = DateUtils.getEndOfDay(date);
Criteria criteria = session.createCriteria(DailyBbgRateData.class);
criteria.add(Expression.between("date", from, to));
criteria.add(Expression.eq("currency", currency));
This problem has been persistent from Hibernate 3.2.5.ga and 3.2.6.ga. The Java is 1.5.0_11 and the database is Oracle 10G.
This is the first query that we run on startup that has the problem. Once we see this query failing, other queries for different classes fail with the same alias problem. Anyone have any ideas.
Thanks
Neil Hart