Duplicate call in select-sql-parameter-source - spring-integration

Question

I'm working with a dynamic query, using select-sql-parameter-source to search the information that I need.
This is my configuration:
<int-jdbc:inbound-channel-adapter query="SELECT * FROM CUSTOMER WHERE CUSTOMER.LASTUPDATE_ACTIVE < TO_DATE(:last_process_date,'YYYY-MM-DD HH24:Mi:SS') "
channel="headerEnricher.customerBR01"
update=""
row-mapper="customerRowMapper"
data-source="jdbcTemplate"
max-rows-per-poll="0"
select-sql-parameter-source="parameterSource.customerBR01">
<!-- Cron Time -->
<int:poller fixed-rate="50" time-unit="SECONDS">
</int:poller>
</int-jdbc:inbound-channel-adapter>
<!-- This is to get last process date -->
<bean id="parameterSource.customerBR01" factory-bean="parameterSourceFactory.customerBR01" factory-method="createParameterSourceNoCache">
<constructor-arg value="" />
</bean>
<bean id="parameterSourceFactory.customerBR01" class="org.springframework.integration.jdbc.ExpressionEvaluatingSqlParameterSourceFactory">
<property name="parameterExpressions">
<map>
<!-- Here we get the last process date -->
<entry key="last_process_date" value="#hsqlHistoricProcessServiceDateDAO.getLastProcessDate(3,1,'CUSTOMER')" />
</map>
</property>
</bean>
I was looking that loggin appeared twice, so I changed my code in this function :
hsqlHistoricProcessServiceDateDAO.getLastProcessDate
To return only an account variable.
Code of function hsqlHistoricProcessServiceDateDAO.getLastProcessDate is the following:
private int contador = 0;
public String getLastProcessDate(Integer country, Integer business, String tableName) {
contador++;
System.out.println("Contador "+ contador);
return Integer.toString(contador);
}
And its result is :
Contador 1
Contador 2
So, this method is called twice, and I need only one call, because in the "real code" I have all logging twice for that.

Answer 1

For your use case, you don't need to disable the cache; use this instead...
<bean id="parameterSource.customerBR01"
factory-bean="parameterSourceFactory.customerBR01"
factory-method="createParameterSource">
<constructor-arg value="" />
</bean>
The ...NoCache version is needed when the same key is used in multiple parameters and you want each one to be re-evaluated.
Disabling the cache has this additional side-effect because the getValue() method is called twice for each use of the key. One call is from NamedParameterUtils.substituteNamedParameters(); the second is from NamedParameterUtils.buildValueArray().