Download Day 1 – Next 5 year

Java SE 7 (Dolphin)
or
”The Future is Nigh”
Andreas Enbohm
Capgemini Sverige AB
Java SE 7
 No JSR for Java 7!
 Modularity
- JSR 294 – Superpackages
- JSR-277 Java Module System (OSGi, superjars)
 Libraries
- JSR 203 - NIO2 (permissions, file attributes)
- JSR 310 – Date and Time (3:rd time …)
- JSR 284 – Resource Consumption (like ARM)
- Pruning
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm
Super Packages
”Public is too public”
superpackage jdk {
member package java.util;
member package java.io;
member package sun.io; // Impl detail
export java.util.*; // Public API
export java.io.*;
}
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm
Java SE 7
 No JSR for Java 7!
 Modularity
- JSR 294 Superpackages
- JSR 277 Java Module System (OSGi, superjars)
 Libraries
- JSR 203 NIO2 (permissions, file attributes)
- JSR 310 Date and Time (3:rd time, datum utan klockslag)
- JSR 284 Resource Consumption Management (cpu time, open
JDBC connections, like ARM)
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm
Java SE 7
 Swing
- JSR 296 Swing Application Framework
- JSR 295 Beans Bindings
- JSR 303 Beans Validation (@length(min = 2, max = 4))
- Java Media Component (quicketime, mpeg 4, native)
- JavaFX
 Types and Generics
- Refined generics (puh!)
- Type literals (generics at runtime)
- Type Inference (String s = new String(”s”);-> s = new String)
- JSR 208 Annotation on types
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm
Java SE 7
 Swing
- JSR 296 Swing Application Framework
- JSR 295 Beans Bindings (auto synch Model and View )
- JSR 303 Beans Validation (@length(min = 1, max = 3)
- Java Media Component (quicketime, mpeg 4, native)
 Types and Generics
- Refined generics (puh!)
- Type literals (generics at runtime)
- Type Inference (String s = new String(”s”);-> s = new String)
- JSR 208 – Annotation on types
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm
Swing application Framework
 Application lifecycle handling;
- launch()
- startup()
- exit()
- shutdown()
 ActionPerformed -> @Action
@Action public void openFile() {
…}
 Support for handling resources (formatted strings, images, colors,
i18n)
 Support for session states
 Remove the ’italian-style-code’ which is needed in Swing applications
(e.g. listener pattern)
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm
Annotation on Types
public int doStuff(@notNull String name) {
//No need to throw IllegalArgumentException!
return name.length();
}
public void doStuff2(@notNegative int age) {
this.age = age;
}
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm
Java SE 7
 Language Proposals
- Closures (N/A ?)
- ARM blocks
- Language level XML support
- JavaBeans Properties (like Scala/C#, no need for get/set)
 Misc. Language Changes
- BigDecimal operator support (+-*/)
- String in switch statements
- improved catch-blocks (catch (AccesEx | IllegalStateEx))
- chained method invocations (foo.bar().baz(), bar(), baz() voids)
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm
Closures
System.out.print(“Prepare the lobster");
putInPot("lobster");
putInPot("water");
System.out.print(“Prepare the chicken");
putInFryPan("chicken");
putInFryPan("coconut");
function cook( i1, i2, f ) {
System.out.print(“Prepare the " + i1);
f(i1);
f(i2);
}
cook( "lobster", "water", putInPot );
cook( "chicken", "coconut", putInFryPan );
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm
Java SE 7
 Language Proposals
- Closures (N/A ?)
- ARM blocks
- Language level XML support
- JavaBeans Properties (like Scala/C#, no need for get/set)
 Misc. Language Changes
- BigDecimal operator support (+-*/)
- String in switch statements
- improved catch-blocks (catch (AccesEx | IllegalStateEx))
- chained method invocations (foo.bar().baz(), bar(), baz() voids)
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm
Java SE 7
 JVM
- invokedynamic (good for scriptlanguages builders)
- tired compilation (improve JIT, do at startup)
- G1 Garbage Collector (’collect where it is most needed’)
- More script engines
- Cheap concurrency -> Scala/Erlang Actors (continuation
closure)
© 2004 Capgemini - All rights reserved
2008, July – Andreas Enbohm