Expression Language

Expression Language is based on Tomcat Expression Language.

Usage

Sample

copysourceval person: SFXBean[Person] = PersonDatabase.testPerson(0)
person.getValue("${_self.name()}") must be equalTo "Cheryl Hoffman"
person.getValue("${_self.age()}") must be equalTo 25
person.getValue("${_self.age() * 2}") must be equalTo 50

FXML

Usage in FXML is supported, but because of the actual use of the Dollar Char ($) you have to use ! instead.

So ${_self.name()} and !{_self.name()} are evaluated equal.

<TableColumn prefWidth="200.0" text="Description">
   <cellValueFactory>
       <SFXTableValueFactory property="Name: !{_self.name()} Age: !{_self.age()} (!{_self.id()}) "/>
   </cellValueFactory>
</TableColumn>

Functions

EL supports defining own functions in expressions. There is a FunctionHelper in the Expressions object. Some Functions are predefined.

Predefined Functions

Functions can have a prefix. The Sapphire Javafx Functions has the prefix: sf.

function	sample	info
frameworkName	${sfx:frameworkName()}
frameworkVersion	${sfx:frameworkVersion()}
dateString	${sfx:dateString(testDate)}	Default Pattern: YYYY-MM-dd
now	${sfx:frameworkName()}
nowAsString	${sfx:nowAsString()}").toString	Default Pattern: YYYY-MM-dd
boolString	${sfx:boolString(testBoolean,‘Y’, ‘N’)}
configString	${sfx:configString(‘test.string’)}
i18n	${sfx:i18n(‘personText’)}

Default Usage

EL in WindowController / ViewController

WindowController- and ViewController-Beans are automatically registered by name