Joda-Time: DateTime, DateMidnight and LocalDate usage

Posted by fraido on Stack Overflow See other posts from Stack Overflow or by fraido
Published on 2010-03-29T14:05:46Z Indexed on 2010/04/17 14:13 UTC
Read the original article Hit count: 488

Filed under:

jodatime

|

java

|

datetime

|

application

|

interfaces

Joda-Time library includes different datetime classes

DateTime - Immutable replacement for JDK Calendar
DateMidnight - Immutable class representing a date where the time is forced to midnight
LocalDateTime - Immutable class representing a local date and time (no time zone)

I'm wondering how are you using these classes in your Layered Applications.

I see advantages in having almost all the Interfaces using LocalDateTime (at the Service Layer at least) so that my Application doesn't have to manage Timezones and can safely assume Times always in UTC. My app could then use DateTime to manage Timezones at the very beginning of the Execution's Flow.

I'm also wondering in which scenario can DateMidnight be useful.

© Stack Overflow or respective owner

Related posts about jodatime

Difference between JodaTime and Calendar for years before 1900

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm getting different values in milliseconds for the same date in past while using JodaTime lib and java.util.Calendar. For example for the first year AD void test() { int year = 1; DateTime dt = new DateTime(year, 1,1,0,0,0,0); dt = dt.toDateTime(GregorianChronology.getInstance()); … >>> More
JodaTime DateFormatter to display milliseconds if nonzero

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to display a list of dates that may or may not have milliseconds on them. If a certain entry has milliseconds, then it should be displayed like yyyy MM dd HH:mm:ss.SSS. If it doesn't have the millis, I need it displayed as yyyy MM dd HH:mm:ss. I suppose the general question is: Is there… >>> More
Occasional Date or timezone discrepancy in hudson or maven with jodatime

as seen on Stack Overflow - Search for 'Stack Overflow'
hi, I hope following explanation will make sense because it's a weird problem we're facing and hard to describe. We have a maven project which gets build in hudson and that contains some unit tests where dates are used and asserted. The hudson server runs on solaris. Now, occasionally (like 30%… >>> More
Library to work with date expressions in C#?

as seen on Stack Overflow - Search for 'Stack Overflow'
What library can I use to calculate dates based on date expressions? A date expression would be something like: "+3D" (plus three days) "-1W" (minus one week) "-2Y+2D+1M" (minus 2 years, plus one day, plus one month) Example: DateTime EstimatedArrivalDate = CalcDate("+3D", DateTime.Now); Where… >>> More
Using Joda DateTime as a Jersey parameter?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'd like to use Joda's DateTime for query parameters in Jersey, but this isn't supported by Jersey out-of-the-box. I'm assuming that implementing an InjectableProvider is the proper way to add DateTime support. Can someone point me to a good implementation of an InjectableProvider for DateTime… >>> More

Related posts about java

Tomcat 6: Access Control Exception?

as seen on Server Fault - Search for 'Server Fault'
I'm trying to setup a tomcat6 server, and I'm trying to match another setup someone else established. However, my deployment (default Ubuntu install) uses a policy.d/ directory structure, and the established server just uses a catalina.policy file. I've tried setting every entry in policy.d to match… >>> More
Problem in creation MDB Queue connection at Jboss StartUp

as seen on Stack Overflow - Search for 'Stack Overflow'
I am not able to create a Queue connection in JBOSS4.2.3GA Version & Java1.5, as I am using MDB as per the below details. I am putting this MDB in a jar file(named utsJar.jar) and copied it in deploy folder of JBOSS, In the test env. this MDB works well but in another env. [ env settings and… >>> More
failing to establish connection between Postgres db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am using Postgres and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When I try to connect it gives "ClassNotFoundException". Here is what I get when I try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
failing to establish connection between postgre db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, For i am using postgre and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When i try to connect it gives "ClassNotFoundException". Here is what i get when i try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
Migration and deployement problems JBoss 4.2.2.GA to JBoss 6.0.0.M2

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to migrate an application running on JBoss 4.2.2.GA to JBoss 6.0.0.M2 I give you some log to explain my problem : boot.log : 2010-03-16 09:59:29,406 ERROR [org.jboss.system.server.profileservice.ProfileServiceBootstrap] (Thread-2) Failed to load profile: Summary of incomplete deployments… >>> More