InputVerifiers not activating when programatically setting text

Question

I have a swing application with JTextFields that I attach InputVerifiers to. I have valid defaults applied to the fields via the setText method, e.g.

this.myField.setText("11");

But it seems that public boolean verify(JComponent component) doesn't get called unless focus is applied to the fields. I've tried to programatically request focus, but that still doesn't seem to fire the InputVerifier, e.g.

this.myField.requestFocus();

How can I progrmatically set textfield text and get my InputVerifier to fire and run its verify() method?

I could manually fire the InputVerifier after I construct it, calling verify() and passing in the component, but that seems really unnecessary since the TextField is already wired up to the InputVerifier.

Answer 1

I have valid defaults applied to the fields via the setText method

If the default is valid why do you need to invoke the input verifier?

I've tried to programatically request focus

The proper method to use is:

component.requestFocusInWindow()

however, this only works when requesting focus on a component on a visible GUI.

where is there something that lets you check the validity status of all your fields

This logic should be part of the "Submit" button. The InputVerifier should only check for data validity for the field. The "Submit" logic checks to make sure data for all fields has been entered.

Answer 2

You can set a DocumentFilter on myField. Your verify() shouldn't have any side effects, so you can use it in the filter. The filter will get applied when you call setText(), or anytime the Document is changed.