binding - How to bind properties of two UI objects in Java? -


i have simple java application textfields , buttons. looking best , quick way bind state of 1 jtextfield state of 1 jbutton. i'm using eclipse, don't need tricks of netbeans ide.

suppose user needs input value textfield in order able send request. button should enabled if value of textfield not empty , consists @ least of 3 symbols. if user deletes input, button becomes disabled.

i come flex-world. such task can solved there easy. 1 should write this:

<mx:button enabled = "{mytextfield.text.length >= 3}" />

is there such opportunity in java? how called? hope, don't need write event listeners each pair of logicaly connected ui elements, i?

i documentlistener on jtextfield. every time document changes, check state of button, button.setenabled(textfield.gettext().length > 3)


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