org.apache.struts2.components
Class FieldError

java.lang.Object
  extended by org.apache.struts2.components.Component
      extended by org.apache.struts2.components.UIBean
          extended by org.apache.struts2.components.FieldError
All Implemented Interfaces:
Param.UnnamedParametric

public class FieldError
extends UIBean
implements Param.UnnamedParametric

Render field errors if they exists. Specific layout depends on the particular theme.

Examples

 

    <!-- example 1 -->
    <s:fielderror />

    <!-- example 2 -->
    <s:fielderror>
         <s:param>field1</s:param>
         <s:param>field2</s:param>
    </s:fielderror>
    <s:form .... >
       ....
    </s:form>

    OR

    <s:fielderror>
          <s:param value="%{'field1'}" />
          <s:param value="%{'field2'}" />
    </s:fielderror>
    <s:form .... >
       ....
    </s:form>

 
 

Description

 

 Example 1: display all field errors

Example 2: display field errors only for 'field1' and 'field2'


Field Summary
private  List errorFieldNames
           
private static String TEMPLATE
           
 
Fields inherited from class org.apache.struts2.components.UIBean
accesskey, cssClass, cssStyle, defaultTemplateDir, defaultUITheme, disabled, key, label, labelPosition, name, onblur, onchange, onclick, ondblclick, onfocus, onkeydown, onkeypress, onkeyup, onmousedown, onmousemove, onmouseout, onmouseover, onmouseup, onselect, request, required, requiredposition, response, tabindex, template, templateDir, templateEngineManager, templateSuffix, theme, title, tooltip, tooltipConfig, value
 
Fields inherited from class org.apache.struts2.components.Component
actionMapper, COMPONENT_STACK, id, parameters, stack
 
Constructor Summary
FieldError(ValueStack stack, HttpServletRequest request, HttpServletResponse response)
           
 
Method Summary
 void addParameter(Object value)
          Adds the given value as a parameter to the outer tag.
protected  String getDefaultTemplate()
          A contract that requires each concrete UI Tag to specify which template should be used as a default.
 List getFieldErrorFieldNames()
           
 
Methods inherited from class org.apache.struts2.components.UIBean
addFormParameter, buildTemplateName, enableAncestorFormCustomOnsubmit, end, ensureAttributeSafelyNotEscaped, escape, evaluateExtraParams, evaluateNameValue, evaluateParams, getTemplate, getTemplateDir, getTheme, getTooltipConfig, getValueClassType, mergeTemplate, populateComponentHtmlId, setAccesskey, setCssClass, setCssStyle, setDefaultTemplateDir, setDefaultUITheme, setDisabled, setKey, setLabel, setLabelposition, setName, setOnblur, setOnchange, setOnclick, setOndblclick, setOnfocus, setOnkeydown, setOnkeypress, setOnkeyup, setOnmousedown, setOnmousemove, setOnmouseout, setOnmouseover, setOnmouseup, setOnselect, setRequired, setRequiredposition, setTabindex, setTemplate, setTemplateDir, setTemplateEngineManager, setTheme, setTitle, setTooltip, setTooltipConfig, setValue
 
Methods inherited from class org.apache.struts2.components.Component
addAllParameters, addParameter, altSyntax, copyParams, determineActionURL, determineActionURL, determineNamespace, end, fieldError, findAncestor, findString, findString, findValue, findValue, findValue, getComponentStack, getId, getParameters, getStack, popComponentStack, setActionMapper, setId, start, toString, usesBody
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

errorFieldNames

private List errorFieldNames

TEMPLATE

private static final String TEMPLATE
See Also:
Constant Field Values
Constructor Detail

FieldError

public FieldError(ValueStack stack,
                  HttpServletRequest request,
                  HttpServletResponse response)
Method Detail

getDefaultTemplate

protected String getDefaultTemplate()
Description copied from class: UIBean
A 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:
getDefaultTemplate in class UIBean
Returns:
The name of the template to be used as the default.

addParameter

public void addParameter(Object value)
Description copied from interface: Param.UnnamedParametric
Adds the given value as a parameter to the outer tag.

Specified by:
addParameter in interface Param.UnnamedParametric
Parameters:
value - the value

getFieldErrorFieldNames

public List getFieldErrorFieldNames()


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