In this tip we will create a <h:commandLink/> programmatically. The code from the previous tips noted, are used to create the component.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | @PostConstructprivate void init() { commandLink = createCommandLink(FacesContext.getCurrentInstance(), "#{indexBean.outputGenerator()}", "CLICK ME... Please"); commandLink.setValueExpression("style", createValueExpression("#{indexBean.linkStyle}", String.class));}public HtmlCommandLink getCommandLink() { return commandLink;}public void setCommandLink(HtmlCommandLink commandLink) { this.commandLink = commandLink;}private HtmlCommandLink createCommandLink(FacesContext context, String methodExpression, String value) { Application application = context.getApplication(); Class<?>[] clazz = new Class<?>[]{}; HtmlCommandLink htmlCommandLink = (HtmlCommandLink) application.createComponent(HtmlCommandLink.COMPONENT_TYPE); htmlCommandLink.setValue(value); htmlCommandLink.setActionExpression(createMethodExpression(methodExpression, String.class, clazz)); return htmlCommandLink;}public String getLinkStyle() { return "color:red; font-size: larger; font-weight: bolder;";}public String outputGenerator() { output = String.valueOf(new Random().nextInt(43)); return null;} |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | <?xml version='1.0' encoding='UTF-8' ?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <h:head> <title><h:commandLink/> Binding</title> </h:head> <h:body> <h:form> <h:outputText value="#{indexBean.output}"/> <h:commandLink binding="#{indexBean.commandLink}"/> </h:form> </h:body></html> |
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