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Recently, I used bitwise Anding in my grails project. I am sharing the approach that we followed by means of an example. Suppose we have a domain class Person which can have multiple attributes like Smart, Intelligent, Talkative etc. What sort of relationship comes to our mind when we see this? I believe the obvious […]
Many at times, we have a string which needs to be converted into Enum. I will be sharing few options as stated by Mr.Haki, Isa Goksu and in the last the one I discovered during the process. Lets say we have a Enum AccountType as given below : [groovy] enum AccountType { CHECKING, SAVING } assert […]
In my current project, I was given a task to bootstrap some data for our application. Initially I was thinking of doing it in the old fashion way, that is, writing a full blown CREATE data code for data creation like [java] Book myBook=new Book(name:’MyBook’, publication:’lorem’,price:’200′) Author author1=new Author(name:’Partho’,country:’India’) author.addToBooks(myBook) [/java] and so on. But […]
Ext.JS JavaScript Framework a cross-browser JavaScript library for building rich internet applications. It is built for developing high performance, customizable UI widgets and features a well designed, documented and extensible Component model. It is available in both Commercial and Open Source licenses are available. Step 1: First download the source css and js Step 2: […]
In one of the modules that I was working on , I needed to delete the previous data from a table then load up the data into those tables again and then manipulate code through the ‘id’s’ on those tables. So this is what I was doing … [groovy] Event.executeUpdate(‘delete from Event’) EventInstance.executeUpdate(‘delete from EventInstance’) […]
Hi, In one of my project i needed to generate EAN-8 standard bar-code for identifying the various products. I searched for various libraries available for generating bar-code and found a library to do so. The library i used for generating the bar-code is Barcode4J. You can download it from here Barcode4J is a flexible generator […]
git cherry-pick is yet another great feature of git.With the help of this command we can apply the changes in a branch, introduced by an existing commit in some other branch. So, it allows to copy commits from one branch to another, but one commit at a time. Syntax for this command is :- git […]
This post is just to talk about Screen Sessions in Linux (esp. ubuntu) using command “byobu”. What is Byobu? Byobu is a Japanese term for decorative, multi-panel screens. As an open source project, Byobu is an elegant enhancement of plain GNU Screen. Where can it be used? You SSH to some remote machine […]
The web application we are developing at the moment interacts with quite a few third party services via REST calls. Most of the third party services use UTF-8 encoding and there was no issues with using the URLCodec, that grails provides out of the box. However, one of the applications our application interacts with, was […]
