ch.maenulabs.validation.js
function (property, messager) {
			this.base('initialize')([property], function (value) {
				return value != null;
			}, messager || function () {
				return i18n['ch/maenulabs/validation/ExistenceCheck'].message();
			});
		}
function (property, messager) {
			this.base('initialize')([property], function (value) {
				return value != null;
			}, messager || function () {
				return i18n['ch/maenulabs/validation/ExistenceCheck'].message();
			});
		}
function ( property , messager ) { this . base ( 'initialize' ) ( [ property ] , function ( value ) { return value != null ; } , messager || function ( ) { return i18n [ 'ch/maenulabs/validation/ExistenceCheck' ] . message ( ) ; } ) ; }
Creates an ExistenceCheck.

@constructor

@param String property The property name
@param Function [messager] The messager
Creates an ExistenceCheck .