java-time

This is my first oportunity to play with the "new" java.time package from Java 8. I need to get the total elapsed time, something like: 1 day, 2h:3m:4s 5ms I know that have 2 TemporalAmount implementations for intervals: - Period for years, months and days - Duration for hours, minutes, seconds, milliseconds and nanoseconds There's a way to mix these two or something more straightforward than "do math"? That was the best I could do until now: (Updated with a new improved version) LocalDateTime start = LocalDateTime.now(); // Forcing a long time execution to measure LocalDateTime end = start

I have a query parameter as following: @GET public Response myFunction(@QueryParam("start") final LocalDate start, @QueryParam("end") final LocalDate end) { ... } For this, I created a ParamConverter<LocalDate> which converts a string to a date, and vice versa. Now I want to use @DefaultValue annotation to declare a default value. I have two special default values: today (for start ) the maximum value/infinity (for end ) Is it possible to use the @DefaultValue annotation for this? How? Yes, @DefaultValue value can be used in this situation: @GET public Response foo(@QueryParam("start")

How do you use YearMonth within an entity? I have seen a lot of stack overflow answers about a converter? Is this still needed and if so how? @Basic(optional = false) @NotNull @Column(name = "cc_exp_date") private YearMonth ccExpDate; The exception I am getting is below. Could I just convert this into a date within the set method and convert back to YearMonth within the get method of the entity as a work around? MysqlDataTruncation: Data truncation: Incorrect date value: '\xAC\xED\x00\x05sr\x00\x0Djava.time.Ser\x95]\x84\xBA\x1B"H\xB2\x0C\x00\x00xpw\x06\x0C\x00\x00\x07\xE2\x02x' for column 'cc

I have a timestamp that is similar to POSIX Time with the sole exception that it is not reckoned in UTC . Instead, it is the number of milliseconds that have elapsed since midnight, Jan 1 1970 in a particular local time zone . In order to make this value into an Instant , I must first know its offset (in milliseconds) to UTC/GMT. So the problem is this: knowing the local time zone id, eg. "America/Chicago" and a count of milliseconds since the local Epoch, how do I make an Instant (which must be constructed with milliseconds since the POSIX Epoch)? It does not seem that any of the java.time

For calculating annuity loan with german I need a calendar where every month has exactly 30 days. Every year has 360 days. There are no leap years. The interest is allways calculated on a basis of 30 day (That's the german interest method) I'm using Java 8. What possibilities do I have with the new java.time API to accomplish my requirements? What you describe is a day count not a calendar system. A day count is a mechanism for converting the period between two dates into a year fraction. OpenGamma OG-Commons includes implementations of many day counts , including 30E/360 which may be the

I need to create a DateTimeFormatter for the following valid dates. String date1 = "2017-06-20T17:25:28"; String date2 = "2017-06-20T17:25:28.477777"; String date3 = "2017-06-20T17:25:28.477777Z"; String date4 = "2017-06-20T17:25:28.477777UTC"; String date5 = "2017-06-20T17:25:28.477777-05"; String date6 = "2017-06-20T17:25:28.477777+05"; String date7 = "2017-06-20T17:25:28.477777+05:30"; String date8 = "2017-06-20T17:25:28.477777-05:30"; String date9 = "2017-06-20T17:25:28.477777+0530"; String date10 = "2017-06-20T17:25:28.477777-0530"; I have tried the following date time formatter, but this

I'm trying to convert XMLGregorianCalendar which is sent in GMT/UTC format to Java 8 LocalDateTime in America/Los_Angeles timezone with no luck. Here is what I tried and couldn't get the time converted to Pacific time. //xmlDate is 2017-11-13T00:00:00Z ZonedDateTime zDateTime = xmlDate.toGregorianCalendar().toZonedDateTime().toLocalDateTime().atZone(ZoneId.of("America/Los_Angeles")); LocalDateTime localDateTime = zDateTime.toLocalDateTime(); //Expected localDateTime is 2017-11-12T16:00. But I only get 2017-11-13T00:00 What am I missing? atZone() does not do what you think it does. It merely