Sometimes you need to figure out if a listeners is already attached to property/observableValue or not.
Adding a getListeners() method as suggested in http://javafx-jira.kenai.com/browse/RT-16363 is not an option as internal listeners may be leaked out.
The alternative would be to add a hasListener(Listener) method.
This issue was brought forward during informal discussions with the JavaFX team during JavaOne 2012.
Adding a getListeners() method as suggested in http://javafx-jira.kenai.com/browse/RT-16363 is not an option as internal listeners may be leaked out.
The alternative would be to add a hasListener(Listener) method.
This issue was brought forward during informal discussions with the JavaFX team during JavaOne 2012.
- duplicates
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JDK-8102584 Add method getListeners in ObservableValue class.
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