When Spring's jpaTemplate persist does not save

Just a quick one...

If you have code similar to this:

public void persistDog(Dog dog) {
        getJpaTemplate().persist(dog);
    }

... and if nothing is persisted to database (and you don't see the insert in logs), don't panic. ;)

Enable transactions!

This will do the trick:

import org.springframework.transaction.annotation.Transactional;
    // ...
    @Transactional
    public void persistDog(Dog dog) {
        getJpaTemplate().persist(dog);
    }
    // ...

Your pom.xml file may need this:

...
    <dependencies>
        ...
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>3.0.3.RELEASE</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>3.0.3.RELEASE</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
    </dependencies>
    <repositories>
        ...
        <repository>
            <id>r.j.o-groups-public</id>
            <url>https://repository.jboss.org/nexus/content/groups/public/</url>
        </repository>
    </repositories>
    ...

And your Spring beans file:

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
    ...

    <tx:annotation-driven transaction-manager="myTransactionManager" />

    <bean id="myTransactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
    </bean>
    ...

Enjoy.