Package org.apache.struts2.components
Class Radio
java.lang.Object
org.apache.struts2.components.Component
org.apache.struts2.components.UIBean
org.apache.struts2.components.ListUIBean
org.apache.struts2.components.Radio
Render a radio button input field.
Examples
In this example, a radio control is displayed with a list of genders. The gender list is built from attribute id=genders. The framework calls getGenders() which will return a Map. For examples using listKey and listValue attributes, see the section select tag. The default selected one will be determined (in this case) by the getMale() method in the action class which should return a value similar to the key of the getGenders() map if that particular gender is to be selected.
<s:action name="GenderMap" var="genders"/>
<s:radio label="Gender" name="male" list="#genders.genders"/>
<@s.radio name="car" list={"ford": "Ford Motor Co", "toyota": "Toyota"} listKey="key" listValue="value" />
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Field Summary
FieldsFields inherited from class org.apache.struts2.components.ListUIBean
list, listCssClass, listCssStyle, listKey, listLabelKey, listTitle, listValue, listValueKey, throwExceptionOnNullValueAttributeFields inherited from class org.apache.struts2.components.UIBean
accesskey, ATTR_FIELD_VALUE, ATTR_NAME_VALUE, ATTR_VALUE, cssClass, cssErrorClass, cssErrorStyle, cssStyle, defaultTemplateDir, defaultUITheme, disabled, dynamicAttributes, errorPosition, id, javascriptTooltip, key, label, labelPosition, labelSeparator, name, onblur, onchange, onclick, ondblclick, onfocus, onkeydown, onkeypress, onkeyup, onmousedown, onmousemove, onmouseout, onmouseover, onmouseup, onselect, request, requiredLabel, requiredPosition, response, tabindex, template, templateDir, templateEngineManager, templateSuffix, theme, title, tooltip, tooltipConfig, tooltipCssClass, tooltipDelay, tooltipIconPath, uiStaticContentPath, uiThemeExpansionToken, valueFields inherited from class org.apache.struts2.components.Component
actionMapper, attributes, COMPONENT_STACK, devMode, escapeHtmlBody, performClearTagStateForTagPoolingServers, stack, standardAttributesMap, throwExceptionOnELFailure -
Constructor Summary
ConstructorsConstructorDescriptionRadio(ValueStack stack, jakarta.servlet.http.HttpServletRequest request, jakarta.servlet.http.HttpServletResponse response) -
Method Summary
Modifier and TypeMethodDescriptionprotected StringA contract that requires each concrete UI Tag to specify which template should be used as a default.protected booleanRadio tag requires lazy evaluation as list of tags is dynamically generated using <s:iterator/>Methods inherited from class org.apache.struts2.components.ListUIBean
contains, evaluateExtraParams, getValueClassType, setList, setListCssClass, setListCssStyle, setListKey, setListLabelKey, setListTitle, setListValue, setListValueKey, setThrowExceptionOnNullValueAttributeMethods inherited from class org.apache.struts2.components.UIBean
addFormParameter, applyValueParameter, buildTemplateName, copyAttributes, enableAncestorFormCustomOnsubmit, end, ensureAttributeSafelyNotEscaped, escape, evaluateNameValue, evaluateParams, getId, getTemplate, getTemplateDir, getTheme, getTooltipConfig, mergeTemplate, populateComponentHtmlId, setAccesskey, setCssClass, setCssErrorClass, setCssErrorStyle, setCssStyle, setDefaultTemplateDir, setDefaultUITheme, setDisabled, setDynamicAttributes, setErrorPosition, setId, setJavascriptTooltip, setKey, setLabel, setLabelPosition, setLabelSeparator, setName, setOnblur, setOnchange, setOnclick, setOndblclick, setOnfocus, setOnkeydown, setOnkeypress, setOnkeyup, setOnmousedown, setOnmousemove, setOnmouseout, setOnmouseover, setOnmouseup, setOnselect, setRequiredLabel, setRequiredPosition, setStaticContentPath, setStyle, setTabindex, setTemplate, setTemplateDir, setTemplateEngineManager, setTheme, setTitle, setTooltip, setTooltipConfig, setTooltipCssClass, setTooltipDelay, setTooltipIconPath, setUIThemeExpansionToken, setValueMethods inherited from class org.apache.struts2.components.Component
addAllAttributes, addParameter, completeExpression, determineActionURL, determineNamespace, end, escapeHtmlBody, fieldError, findAncestor, findString, findString, findValue, findValue, findValue, getAttributes, getComponentStack, getNamespace, getPerformClearTagStateForTagPoolingServers, getStack, getStandardAttributes, isAcceptableExpression, isValidTagAttribute, popComponentStack, setActionMapper, setDevMode, setEscapeHtmlBody, setNotExcludedAcceptedPatterns, setPerformClearTagStateForTagPoolingServers, setThrowExceptionsOnELFailure, setUrlHelper, start, stripExpression, toString, usesBody
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Field Details
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TEMPLATE
- See Also:
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Constructor Details
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Radio
public Radio(ValueStack stack, jakarta.servlet.http.HttpServletRequest request, jakarta.servlet.http.HttpServletResponse response)
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Method Details
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getDefaultTemplate
Description copied from class:UIBeanA contract that requires each concrete UI Tag to specify which template should be used as a default. For example, the CheckboxTab might return "checkbox.vm" while the RadioTag might return "radio.vm". This value not begin with a '/' unless you intend to make the path absolute rather than relative to the current theme.- Specified by:
getDefaultTemplatein classUIBean- Returns:
- The name of the template to be used as the default.
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lazyEvaluation
protected boolean lazyEvaluation()Radio tag requires lazy evaluation as list of tags is dynamically generated using <s:iterator/>- Overrides:
lazyEvaluationin classUIBean- Returns:
- boolean true by default
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