getting some problem into my spring application.
I have very fairly simple spring beans, they are injected into various other spring beans. While debugging I found, they are being called twice, Constructor & @PostConstruct both called two times.
My application have no front end technology. Its simply for backend task related.
Spring Configuration
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:lang="http://www.springframework.org/schema/lang" xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd">
<context:component-scan base-package="com.green.integration" />
<!-- ######################################################## -->
<!-- EXPOSING SPRING BEAN VIA HTTPINVOKER SPRING REMOTING -->
<!-- ######################################################## -->
<bean name="/switch"
class="org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter">
<property name="service" ref="SwitchController" />
<property name="serviceInterface"
value="com.green.ISwitchController" />
</bean>
<!-- Load in application properties reference -->
<bean id="applicationProperties"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:application.properties" />
</bean>
<bean id="mongo" class="com.mongodb.Mongo">
<constructor-arg value="${mongo.server}" />
<constructor-arg value="${mongo.port}" />
</bean>
<bean id="morphia" class="com.google.code.morphia.Morphia">
</bean>
</beans>
Spring Bean Class
@Repository
public class TransactionDAO extends BasicDAO<Transaction, ObjectId> {
private Datastore datastore;
@Autowired
public TransactionDAO(Mongo mongo, Morphia morphia) {
super(mongo, morphia, "itransact");
morphia.map(Transaction.class);
// TO USE MONGO WITHOUT SECURITY
this.datastore = morphia.createDatastore(mongo, "itransact");
logger.debug("***** CONNECTED TO MONGODB SUCCESSFULLY *****");
this.datastore.ensureIndexes();
// this.datastore.ensureCaps();
}
}
Constructor "TransactionDAO" is being called twice.
I tried to watch call stack trace by
Throwable t = new Throwable();
System.out.println(t.getStackTrace()[1].toString());
and each time it showed the following
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
@PostConstructis called twice as well? Constructor being called twice can be easily explained, but not@PostConstruct. – TouchmenotPostConstructis called each time after the constructor; what was the rational behind your comment? – Acaricide