Config File I have a config file above in which I have number of threads I want to use and the client instance is able to use ID range from 1 to 1000 and suppose the client threads is set at 10, so each thread would have range of 100 id’s(basically by dividing end range with thread size) that it
Tag: java
get timezone in “+0100” (for example) format
I got lost between the documentation and the numerous time-related questions found by google. What I want is very simple: a string that represents the running timezone in the “[+/-] [number] [number] [number] [number]” format (for instance “+0100”). My current code is: which returns &#…
Java synchronization between different JVMs
The project I am working on would trigger various asynchronous jobs to do some work. As I look into it more these asynchronous jobs are actually being run as separate JVMs (separate java processes). Does it mean I would not be able to use any of the following if I need to synchronize between these processes: …
Running liquibase within Java code
For some reason there’s no documentation on running liquibase inside Java code. I want to generate tables for Unit tests. How would I run it directly in Java? e.g. Answer It should be something like (taken from liquibase.integration.spring.SpringLiquibase source): There are multiple implementation of Re…
Jdbctemplate query for string: EmptyResultDataAccessException: Incorrect result size: expected 1, actual 0
I am using Jdbctemplate to retrieve a single String value from the db. Here is my method. In my scenario it is complete possible to NOT get a hit on my query so my question is how do I get around the following error message. It would seem to me that I should just get back a null instead of
Is it possible to cast a retrieved Class object (via reflection) to an interface?
I have 3 projects in my workspace – A, B, and C which is an Android lib project. A contains an Activity named Atest B contains a class named Btest which implements interface I. C contains the I interface. Both A and B are installed on my Android device. During Atest runtime, i’m executing the next…
EJB 3.0 test client working without maven but not with
here is my problem, I made an EJB with maven and 2 test clients, a test client without maven, only added jnp-client and the EJB to it’s class path, work like a charm a test client using MAVEN, added the EJB through the POM and jnp-client, does not work this is my EJB : it’s POM : this is my
Library method to partition a collection by a predicate
I have a collection of objects that I would like to partition into two collections, one of which passes a predicate and one of which fails a predicate. I was hoping there would be a Guava method to do this, but the closest they come is filter, which doesn’t give me the other collection. I would image th…
How to query data out of the box using Spring data JPA by both Sort and Pageable?
I am trying Spring data JPA in my project. I want to know if there is an out-of-the-box API to query data, by both Sort and Pageable. Of course, I know I can write that method myself, I just want to know if there is an out-of-the-box one. My DAO extends JpaRepository, and I found there are the following metho…
CreateProcess error=206, The filename or extension is too long when running main() method
I have this error in eclipse helios: Exception occurred executing command line. Cannot run program “C:Program Files (x86)Javajre6binjavaw.exe” (in directory “C:Usersmotiverhelios_workspaceTimeTracker”): CreateProcess error=206, The filename or extension is too long I researched a bit b…