Re: RFC: Make new versions of pgjdbc Java8+ - Mailing list pgsql-jdbc

On 2 April 2017 at 19:03, Álvaro Hernández Tortosa <aht@8kdata.com> wrote:

On 03/04/17 00:56, John R Pierce wrote:

On 4/2/2017 3:40 PM, Álvaro Hernández Tortosa wrote:

- Java 6 EOLed 2/2013.
- Java 7 EOLed 4/2015.
- Java 8 was released 3 years ago, and brought significant improvements.
- Java 9 will be (may be) released this year.

isn't there a significant lag in version support by things like web services (j2ee, etc, as embedded in things like IBM WebSphere) ? j2ee 8 isn't even out yet.   Pretty sure a whole lot of that space is still stuck back in Java 6 land.

    Those are not related things. You can perfectly run J2EE 6 servers with Java 8 (and indeed, it is beneficial).


    Álvaro

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Álvaro Hernández Tortosa


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Alvaro,

So why do you want to write in java 8 ?

    Not a comprehensive or ordered list, but a few reasons:

- JDK comes with Base64 and cryptographic functions like PBKDF2 that are needed for SCRAM. In Java6 you either implement yourself or pull external dependencies.

- You can write conciser code (which improves significantly readability):
    * Lambas: anonymous classes. Callback-heavy code turns becomes readable.
    * Streams: unnecessary for loops and other goodies.
    * Optional: unnecessary ifs.
    * Since Java7: try-with-resources, 10_000 vs 10000 etc.

- Reading Javadoc doesn't hurt my eyes ^_^

- Time API, CompletableFuture.

- Default and static methods in interfaces!


    Álvaro

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Álvaro Hernández Tortosa


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