package com.vaadin.tests.components.checkbox; import com.vaadin.annotations.PreserveOnRefresh; import com.vaadin.server.VaadinRequest; import com.vaadin.tests.components.AbstractTestUIWithLog; import com.vaadin.ui.CheckBox; @PreserveOnRefresh public class CheckBoxRevertValueChange extends AbstractTestUIWithLog { @Override protected void setup(VaadinRequest request) { final CheckBox alwaysUnchecked = new CheckBox("You may not check me"); alwaysUnchecked.addValueChangeListener(event -> { if (alwaysUnchecked.getValue()) { log("I said no checking!"); alwaysUnchecked.setValue(false); } }); final CheckBox alwaysChecked = new CheckBox("You may not uncheck me"); alwaysChecked.setValue(true); alwaysChecked.addValueChangeListener(event -> { if (!alwaysChecked.getValue()) { log("I said no unchecking!"); alwaysChecked.setValue(true); } }); addComponent(alwaysUnchecked); addComponent(alwaysChecked); } @Override protected String getTestDescription() { return "Ensure checking of a checkbox can be reverted on the server side without making the client go out of sync"; } @Override protected Integer getTicketNumber() { return 11028; } }