robfletcher

package com.github.robfletcher.grails.validation

import org.codehaus.groovy.grails.validation.AbstractConstraint
import org.springframework.validation.Errors

class AcyclicConstraint extends AbstractConstraint {

	static final String DEFAULT_MESSAGE_CODE = "default.acyclic.violation.message"
	static final String NAME = "acyclic"

artero

Launch Sublime Text 2 from the Mac OS X Terminal

Sublime Text 2 ships with a CLI called subl (why not "sublime", go figure). This utility is hidden in the following folder (assuming you installed Sublime in /Applications like normal folk. If this following line opens Sublime Text for you, then bingo, you're ready.

open /Applications/Sublime\ Text\ 2.app/Contents/SharedSupport/bin/subl

You can find more (official) details about subl here: http://www.sublimetext.com/docs/2/osx_command_line.html

Installation

akavel

Read-only access, in short

First,

hg clone http://bitbucket.org/durin42/hg-git HGGIT_PATH

Second, in "mercurial.ini" add:

[extensions]
hggit=HGGIT_PATH\hggit

kiy0taka

One line Tree in Groovy

The other day, I saw Harold Cooper's One-line tree in Python via autovivication, and wondered if the same thing was possible in Groovy.

The answer is yes! But you need to define the variable tree before you can assign it to the self-referential withDefault closure, hence with Groovy, it's a two-line solution ;-)

Anyway, given:

def tree = { [:].withDefault{ owner.call() } }

pledbrook

import org.vertx.groovy.core.Vertx

class BootStrap {

    def init = { servletContext ->
        def vertx = Vertx.newVertx()
        def httpServer = vertx.createHttpServer()
        vertx.createSockJSServer(httpServer).installApp(prefix: '/events') { sock ->
            sock.dataHandler { buff ->
                sock << buff

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

Isammoc

language: java

jdk:
  - openjdk7
  - oraclejdk7

before_install:
 - sudo add-apt-repository -y ppa:groovy-dev/grails
 - sudo apt-get update
 - sudo apt-get -y install grails-ppa # not sure if necessary

timyates

List list = [
    [id:0, firstName: 'Sachin', lastName: 'Tendulkar', age: 40 ],
    [id:1, firstName: 'Sachin', lastName: 'Tendulkar', age: 103 ],
    [id:2, firstName: 'Ajay', lastName: 'Tendulkar', age: 48 ],
    [id:3, firstName: 'Virendra', lastName: 'Sehwag', age: 5 ],
    [id:4, firstName: 'Virendra', lastName: 'Sehwag', age: 50 ],
    [id:5, firstName: 'Sachin', lastName: 'Nayyar', age: 15 ]
]

Collection.metaClass.sort = { boolean mutate, Closure... closures ->

timyates

Object.metaClass.ensureClosed = { Closure c ->
  try {
    c( delegate )
  }
  finally {
    [ delegate ].flatten().each {
      if( it.respondsTo( 'close' ) ) {
        it.close()
      }
    }

cdeszaq

TODO: Fill in the problem statement