Pick Your Java EE Front End JavaServer Faces or Model-View-Controller 2015 JavaOne Brasil presentation

3. Pick
Your
Java
EE
Front
End
JavaServer
Faces
or
Model-­‐View-­‐Controller
Manfred
Riem
Principal
Member
of
Staff
@mnriem
Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|

4. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Safe
Harbor
Statement
The
following
is
intended
to
outline
our
general
product
direcQon.
It
is
intended
for
informaQon
purposes
only,
and
may
not
be
incorporated
into
any
contract.
It
is
not
a
commitment
to
deliver
any
material,
code,
or
funcQonality,
and
should
not
be
relied
upon
in
making
purchasing
decisions.
The
development,
release,
and
Qming
of
any
features
or
funcQonality
described
for
Oracle’s
products
remains
at
the
sole
discreQon
of
Oracle.
4

5. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Program
Agenda
What
is
currently
available?
JSF
2.3
MVC
1.0
How
to
contribute
Closing
remarks
1
2
3
4
5
5

6. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Program
Agenda
What
is
currently
available?
JSF
2.3
MVC
1.0
How
to
contribute
Closing
remarks
1
2
3
4
5
6

7. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
What
is
currently
available?
• Glassfish
4.1
– Reference
implementaQon
of
JavaEE
7,
which
includes
JSF
2.2.
• WLS
12.2.1
– Coming
soon
• Other
vendors
– Some
have
already
released
– Some
have
announced
when
they
are
going
to
be
available
7

8. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
What
is
currently
available
(cont.)
?
• JSF
2.2
– Resource
library
contracts
– Stateless
views
– CSRF
protecQon
– File
upload
– Faces
flows
8

9. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
9
<f:view
contracts=“#{contractBean.contract}”>
<ui:composition
template=“/template.xhtml”>
<ui:define
name=“content”>
main
content
</ui:define>
<ui:define
name=“footer”>
footer
info
</ui:define>
</ui:composition>
</f:view>
JSF
2.2
Resource
library
contracts
(using
HTML
page)

10. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
10
@SessionScoped
@Named(“contractBean”}
Public
class
ContractBean
{
private
String
contract
public
String
getContract()
{
this.contract
=
contract;
}
}
JSF
2.2
Resource
library
contracts
(Java
code)

11. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
JSF
2.2
Resource
library
contracts
(filesystem
layout)
• contracts
– layout1
• css
– layout.css
• header.xhtml
– layout2
• template.xhtml
11

12. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
12
<f:view
transient=“true”>
<ui:composition
template=“/template.xhtml”>
<ui:define
name=“content”>
main
content
</ui:define>
<ui:define
name=“footer”>
footer
info
</ui:define>
</ui:composition>
</f:view>
JSF
2.2
Stateless
Views

13. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
JSF
2.2
Stateless
Views
(cont.)
• A
view
is
considered
stateless
if
the
transient
adribute
is
set
to
true,
however:
– Stateless
means
that
NO
view
state
will
be
kept
– CDI
/
JSF
managed
beans
can
sQll
exist
– View
scoped
beans
acts
like
Request
scoped
beans
13

14. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
JSF
2.2
Faces
Flows
• A
flow
is
a
collecQon
of
resources
that
represent
a
specific
flow
of
pages,
it
can
contain
or
use:
– HTML
files
– CSS
files
– Java
Beans
– Resource
Library
contracts
14

15. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
15
<f:view>
<h:form
enctype=“multipart/form-­‐data”>
<h:inputFile
value=“#{fileUploadBean.uploadedFile}”>
</h:inputFile>
<h:commandButton
value=“Submit”/>
</h:form>
</f:view>
JSF
2.2
File
Upload

16. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
16
@RequestScoped
@Named(“fileUploadBean”}
Public
class
FileUploadBean
{
private
Part
uploadedFile;
public
Part
getUploadedFile()
{
return
uploadedFile;
}
public
void
setUploadedFile(Part
uploadedFile)
{
this.uploadedFile
=
uploadedFile;
}
}
JSF
2.2
File
Upload
(Java
code)

17. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Program
Agenda
What
is
currently
available?
JSF
2.3
MVC
1.0
How
to
contribute
QuesQons
and
Answers
1
2
3
4
5
17

18. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
What
is
on
the
table
for
JSF
2.3?
• Tie
up
the
loose
ends
– SpecificaQon
clarificaQons
– CDI
alignment
• Ease
of
use
e.g.
@Inject
FacesContext
• @Inject
into
Validators,
Converters,
etc.
– HtmlInputHidden
is
ClientBehaviorHolder
• Small
scale
new
features
• JSON
ajax
component
rendering
• Stateless
enhancements
• GET
enhancements
• Adopt-­‐a-­‐JSR
18

19. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
19
@FacesConverter(forClass
=
InjectConverterItem.class,
managed
=
true)
public
class
InjectConverter
implements
Converter
{
public
InjectConverter()
{
}
@Override
public
Object
getAsObject(FacesContext
context,
UIComponent
component,
String
value)
{
return
value;
}
@Override
public
String
getAsString(FacesContext
context,
UIComponent
component,
Object
value)
{
return
value.toString();
}
}
JSF
2.3
Converter
injecQon
(CDI
managed
converter)

20. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
20
@FacesValidator(value
=
"injectValidator",
isDefault
=
false,
managed
=
true)
public
class
InjectValidator
implements
Validator
{
public
InjectValidator()
{
}
@Override
public
void
validate(FacesContext
context,
UIComponent
component,
Object
value)
throws
ValidatorException
{
}
}
JSF
2.3
Validator
injecQon
(CDI
managed
converter)

21. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
21
@Named(value
=
"injectSessionMapBean")
@ApplicationScoped
public
class
InjectSessionMap2Bean
implements
Serializable
{
@Inject
@SessionMap
private
Map<String,
Object>
sessionMap;
public
String
getValue()
{
sessionMap.put("key",
"value");
return
sessionMap.toString();
}
}
JSF
2.3
Session
Map
injecQon

22. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
22
@Named(value="injectFacesContextBean")
@RequestScoped
public
class
InjectFacesContextBean
{
@Inject
FacesContext
context;
public
String
getValue()
{
return
context.toString();
}
}
JSF
2.3
Faces
Context
injecQon

23. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
JSF
2.3
Other
EG
contribuQons
• Support
for
more
data
types
on
ui:repeat
and
h:dataTable
• @FacesDataModel
allow
generic
types
• Your
contribuQon?
Some
done,
some
in
progress
23

24. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Program
Agenda
What
is
currently
available?
JSF
2.3
MVC
1.0
How
to
contribute
Closing
remarks
1
2
3
4
5
24

25. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Where
are
we
at?
• The
first
Early
Dran
has
been
published
• Our
first
Milestone
release
is
available
• Our
road
map
is
aligning
with
the
JavaEE
8
roadmap
• We
are
requiring
JAX-­‐RS
as
we
build
on
top
of
it
• We
are
requiring
Java
8
• We
have
integrated
mulQple
contribuQons
from:
– our
EG
members
– external
contributors
25

26. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
26
@Path("book")
public
class
BookController
{
@Inject
private
Catalog
catalog;
@Inject
private
Models
models;
@GET
@Controller
@Produces("text/html")
@Path("view1/{id}")
public
String
view1(@PathParam("id")
String
id)
{
models.put("book",
catalog.getBook(id));
return
"book.xhtml";
}
}
MVC
1.0
Controller
example
(Controller
code)

27. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
27
public
class
Book
{
private
String
title;
public
String
getTitle()
{
return
title;
}
public
void
setTitle(String
title)
{
this.title
=
title;
}
}
MVC
1.0
Controller
example
(Book
class)

28. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
28
<html
xmlns:h=http://xmlns.jcp.org/jsf/html>
...
<h1>Book
information</h1>
<p>#{book.title}</p>
...
</html>
MVC
1.0
Controller
example
(HTML
page)

29. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Standard
ViewEngines
• JSP
• Facelets
29

30. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
ViewEngine
contribuQons,
supported
by
community
• AsciiDoc
• Freemarker
• Handlebars
• JSR
223
– Groovy
– Nashorn
• Mustache
• Thymeleaf
• Velocity
30

31. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Enabling
ViewEngine
extensions
• Maven
users
include
the
extension
dependency
– E.g.
for
Velocity
•
<dependency>
<groupId>com.oracle.ozark.ext</groupId>
<arQfactId>ozark-­‐velocity</arQfactId>
<version>x.y.z</version>
<scope>compile</scope>
</dependency>
• Use
the
correct
extension
for
the
enabled
view
engine
– E.g.
for
Velocity
• Velocity
have
a
.vm
extension
• Non-­‐maven
users
have
to
include
the
JARs
manually
31

32. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Program
Agenda
What
is
currently
available?
JSF
2.3
MVC
1.0
How
to
contribute
Closing
remarks
1
2
3
4
5
32

33. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
How
to
contribute
to
JSF
2.3
• Join
the
users@jsf-­‐spec.java.net
mailing
list
and
comment
• ParQcipate
in
the
Adopt-­‐a-­‐JSR
program
(JUGs)
•
Test
out
milestones
/
snapshots
from
the
RI
website
(hdp://javaserverfaces.java.net)
and
file
issues
if
something
is
not
working
• Tweet,
blog,
socialize
to
raise
awareness
about
JSF
2.3
• Contribute
substanQal
code
– Step
1
–
Write
the
code
– Step
2
–
Sign
the
OCA
(Oracle
Contributor
Agreement)
– Step
3
–
See
your
contribuQon
be
accepted
and
see
a
tweet
announcing
it!
33

34. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
How
to
contribute
to
MVC
1.0
• Join
the
users@mvc-­‐spec.java.net
mailing
list
and
comment
• ParQcipate
in
the
Adopt-­‐a-­‐JSR
program
(JUGs)
•
Test
out
milestones
/
snapshots
from
the
RI
website
(hdp://ozark.java.net)
and
file
issues
if
something
is
not
working
• Tweet,
blog,
socialize
to
raise
awareness
about
MVC
1.0
• Contribute
substanQal
code
– Step
1
–
Write
the
code
– Step
2
–
Sign
the
OCA
(Oracle
Contributor
Agreement)
– Step
3
–
See
your
contribuQon
be
accepted
and
see
a
tweet
announcing
it!
34

35. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Program
Agenda
What
is
currently
available?
JSF
2.3
MVC
1.0
How
to
contribute
Closing
remarks
1
2
3
4
5
35

36. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Closing
remarks
• Picking
JSF
or
MVC
is
a
mader
of
choice,
but
please
consider
this
– JSF
• Availability
of
JSF
component
frameworks
which
allow
you:
–
to
deliver
a
consistent
UI
across
department
–
foster
re-­‐use
of
components
• Complexity
of
rendering
is
hidden
from
the
user
– MVC
• Standardize
an
acQon/controller
based
approach
• Stays
out
of
your
way
with
respect
to
rendering
• Lots
of
ViewEngines
available,
new
ones
easy
to
integrate
• JSF
and
MVC
are
complementary
to
each
other
and
they
can
co-­‐exist!
36

37. Copyright
©
2015,
Oracle
and/or
its
affiliates.
All
rights
reserved.
|
Safe
Harbor
Statement
The
preceding
is
intended
to
outline
our
general
product
direcQon.
It
is
intended
for
informaQon
purposes
only,
and
may
not
be
incorporated
into
any
contract.
It
is
not
a
commitment
to
deliver
any
material,
code,
or
funcQonality,
and
should
not
be
relied
upon
in
making
purchasing
decisions.
The
development,
release,
and
Qming
of
any
features
or
funcQonality
described
for
Oracle’s
products
remains
at
the
sole
discreQon
of
Oracle.
37