Why do I recommend
the
Spring Framework
to my customers
?
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Michael Plöd
Partner and Principal Architect at Senacor
Technologies AG
Author Java Magazin
@bitboss
http://speakerdeck.com/mploed
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100%
independent
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2005
Java EE Developer
Spring Developer
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2012
Java EE Developer
Spring Developer
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Java EE
vs
Spring
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Java EE
with or
without
Spring
!
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You‘ll get your projects
delivered with both stacks
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I will discuss the topic
on an architectural
decision-maker level
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Myths
and
Legends
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Spring
is an
XML Hell
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0lines of XML for a
Spring based
Web Application
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Spring
is
complex
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You don‘t need the
force to use Spring!
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Spring
has too many
dependencies
and makes
WAR Files huge
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Is this your
runtime
environment?
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Spring is
proprietary
and not
portable
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Who has ported a
usual JEE
enterprise
application as a
drop-in?
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A
holistic
examination
is important
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Ops Road-Map
Code
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Operational
Aspects
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Infrastructure
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Infrastructure
App Server
Servlet
Container
Operations Team
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Update Volume
App Server
Servlet
Container
Server
Runtime
Libraries like
CDI, Servlet,
JPA, JSF, ...
Eventually
JVM
A lot of
planning
and testing
is required
Integration
in Monitoring
...
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Project Libs
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Project Libs
Hibernate
...
Spring
Development Team
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Update Volume
Hibernate
...
Spring
Dedicated,
only single
Libraries
Ad Hoc
Reduced
test effort
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Roundtrips
Hibernate
...
Spring
App Server
Servlet
Container
2-4 Months 2-3 Years
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DEV OPS
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DEV OPS
vs
?
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With Spring I achieve an
increased flexibility by
loosely coupling the
infrastructure to the
runtime
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Coding
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? Are
Dependency
Injection
and
Testing
game changers
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Free your mind:
we are in
2012
and not in
2005
anymore
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Dependency
Injection
and
Testing
are
commodity
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More important is the
overall ecosystem
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Spring builds upon
Java EE
Scheduling MVC REST JMX Testing Caching Profiles
DI AOP TX JMS AOP JDBC ORM OXM Expression
JSR-250 JSR-330
JTA JDBC 4.1
JPA 2.0
JSF 2.0 JSR-303 JMX 1.0
Spring Data
by example
Data
JPA MongoDB Neo4j GemFire
HBase
Redis JDBC Splunk Querydsl
HDFS MapReduce Hive
Pig Cascading SI/Batch
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JPA 2 Query
...
public class PersonDAO ... {
private EntityManager em;
public List findByFirstname(String firstname) {
Query q = em.createQuery(“from Person p where p.firstname = :name “)
.setParameter(“name“, firstname)
return q.getResultList();
}
}
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JPA 2 Query
...
public class PersonDAO ... {
private EntityManager em;
public List findByFirstname(String firstname) {
Query q = em.createQuery(“from Person p where p.firstname = :name “)
.setParameter(“name“, firstname)
return q.getResultList();
}
}
You end up writing many simple queries
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Spring Data
@Repository
public interface PersonRepository extends JpaRepository {
List findByFirstname(String firstname);
}
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Spring Data with
QueryDSL
@Repository
public interface PersonRepository extends JpaRepository,
QueryDslPredicateExecutor {
List findByFirstname(String firstname);
}
QPerson P = QPerson.person;
BooleanExpression hasBirthday = p.birthday.eq(...);
BooleanExpression livesInLinz = p.adress.city.eq("Linz");
Person result = personRepository.findAll(hasBirthday.and(livesInLinz));
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Spring Data also
adresses NoSQL, Big
Data and Data Grids
Data
JPA MongoDB Neo4j GemFire HBase
Redis JDBC Splunk Querydsl
HDFS MapReduce Hive
Pig Cascading SI/Batch
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Where are the
Java EE
Answers
to NoSQL, Mobile,
Social, ...?
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Keep in mind
App Server
Servlet
Container
Server
Runtime
Libraries like
CDI, Servlet,
JPA, JSF, ...
Eventuell
JVM
A lot of
planning
and testing
is required
! Ususal Roundtrip is 2-3 years !
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Spring offers a consistent
programming model and
many helpful abstractions
and utilities besides the
basics
!The Java EE venors took
1,5 years
for the first fully
professionally supported
container
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Java EE 7:
3,5 years later
12 / 2009 Final Spec Release JEE 6
Q2 / 2013 Final Spec Release JEE 7
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News around
Java EE 7
Cloud Plattform will be
delayed to Java EE 8
Social API is on a halt
JCache won‘t make it in
Java EE 7
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What is left?
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JAX-WS 2.0
CDI 1.1
JMS 2.0
after
11 years
JPA 2.1
Servlet 3.1 JSF 2.2
....
Java EE 7
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12 / 2009 Spring 3.0
12 / 2011 Spring 3.1
12 / 2012 Spring 3.2
Spring since
2009
12 / 2009 12 / 2011 End 2012
Full professional
support
Available on all
containers right
away
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Some math
Java EE
API Release 12 / 2009 0 months
Server Mid 2011 18 months
Available in
organisations
Mid 2013 18 + 24 months
API is available in production
API is available in production
42 months
3,5 years
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The same math
Spring 3.0
API Release 12 / 2009 0 months
Available in
organisations
3 / 2010 3 months
API is available in production
API is available in production 3 months
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Spring offers an
innovative and reliable
Road-Map
with
immediate availability
and
support
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Ops Road-Map
Code
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Thank you!
Photos / Graphics (c) Michael Plöd / Senacor Technologies AG
Exceptions: Photos on Slides 2, 9 (c) Matthias Heyde; Photo on Slide 34 is licensed from istockphoto
Pointy Font licensed from Bitfoundry
Senacor is hiring
Software Developers and -Architects
michael.ploed@senacor.com
@bitboss
http://www.senacor.com