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## org.apache.struts2.dojo.components
Class Anchor

    java.lang.Object
      org.apache.struts2.components.Component
          org.apache.struts2.components.UIBean
              org.apache.struts2.components.ClosingUIBean
                  org.apache.struts2.dojo.components.AbstractRemoteBean
                      org.apache.struts2.dojo.components.AbstractValidateBean
                          org.apache.struts2.dojo.components.Anchor

All Implemented Interfaces:
  RemoteBean

    public class Anchor

extends AbstractValidateBean

A tag that creates an HTML <a/> element, that when clicked makes an asynchronous request(XMLHttpRequest). The url attribute must be build using the <s:url/> tag.

Examples

<div id="div1">Div 1</div> <s:url id="ajaxTest" value="/AjaxTest.action"/> <sx:a id="link1" href="%{ajaxTest}" target="div1"> Update Content </sx:a> <s:form id="form" action="AjaxTest"> <input type="textbox" name="data"> <sx:a>Submit form</sx:a> </s:form> <s:form id="form" action="AjaxTest"> <input type="textbox" name="data"> </s:form> <sx:a formId="form">Submit form</sx:a> <script type="text/javascript"> dojo.event.topic.subscribe("/before", function(event, widget){ alert('inside a topic event. before request'); //event: set event.cancel = true, to cancel request //widget: widget that published the topic }); </script> <sx:a beforeNotifyTopics="/before">Publish topics</sx:a> <script type="text/javascript"> dojo.event.topic.subscribe("/after", function(data, request, widget){ alert('inside a topic event. after request'); //data : text returned from request(the html) //request: XMLHttpRequest object //widget: widget that published the topic }); </script> <sx:a afterNotifyTopics="/after" highlightColor="red" href="%{#ajaxTest}">Publish topics</sx:a> <script type="text/javascript"> dojo.event.topic.subscribe("/error", function(error, request, widget){ alert('inside a topic event. on error'); //error : error object (error.message has the error message) //request: XMLHttpRequest object //widget: widget that published the topic }); </script> <img id="ind1" src="${pageContext.request.contextPath}/images/indicator.gif" style="display:none"/> <sx:a errorNotifyTopics="/error" indicator="ind1" href="%{#ajaxTest}">Publish topics</sx:a>

Field Summary
`static String` | `COMPONENT_NAME`
`static String` | `OPEN_TEMPLATE`
`protected String` | `targets`
`static String` | `TEMPLATE`

Fields inherited from class org.apache.struts2.dojo.components.AbstractValidateBean
`ajaxAfterValidation, validate`

Fields inherited from class org.apache.struts2.dojo.components.AbstractRemoteBean
`afterNotifyTopics, beforeNotifyTopics, errorNotifyTopics, errorText, executeScripts, formFilter, formId, handler, highlightColor, highlightDuration, href, indicator, listenTopics, loadingText, notifyTopics, parseContent, separateScripts, showErrorTransportText, showLoadingText, transport`

Fields inherited from class org.apache.struts2.components.UIBean
`accesskey, 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, uiThemeExpansionToken, value`

Fields inherited from class org.apache.struts2.components.Component
`actionMapper, COMPONENT_STACK, devMode, parameters, stack, standardAttributesMap, throwExceptionOnELFailure`

Constructor Summary
`Anchor(com.opensymphony.xwork2.util.ValueStack stack, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)`

Method Summary
`void` | `evaluateExtraParams()`
`String` | `getDefaultOpenTemplate()`
`protected String` | `getDefaultTemplate()`
`void` | `setTargets(String targets)`
`void` | `setTheme(String theme)`

Methods inherited from class org.apache.struts2.dojo.components.AbstractValidateBean
`setAjaxAfterValidation, setValidate`

Methods inherited from class org.apache.struts2.dojo.components.AbstractRemoteBean
`getTheme, setAfterNotifyTopics, setBeforeNotifyTopics, setCssClass, setCssStyle, setErrorNotifyTopics, setErrorText, setExecuteScripts, setFormFilter, setFormId, setHandler, setHighlightColor, setHighlightDuration, setHref, setId, setIndicator, setListenTopics, setLoadingText, setName, setNotifyTopics, setParseContent, setSeparateScripts, setShowErrorTransportText, setShowLoadingText, setTransport`

Methods inherited from class org.apache.struts2.components.ClosingUIBean
`setOpenTemplate, start`

Methods inherited from class org.apache.struts2.components.UIBean
`addFormParameter, buildTemplateName, copyParams, enableAncestorFormCustomOnsubmit, end, ensureAttributeSafelyNotEscaped, escape, evaluateNameValue, evaluateParams, getId, getTemplate, getTemplateDir, getTooltipConfig, getValueClassType, mergeTemplate, populateComponentHtmlId, setAccesskey, setClass, setCssErrorClass, setCssErrorStyle, setDefaultTemplateDir, setDefaultUITheme, setDisabled, setDynamicAttributes, setErrorPosition, setJavascriptTooltip, setKey, setLabel, setLabelposition, setLabelSeparator, setOnblur, setOnchange, setOnclick, setOndblclick, setOnfocus, setOnkeydown, setOnkeypress, setOnkeyup, setOnmousedown, setOnmousemove, setOnmouseout, setOnmouseover, setOnmouseup, setOnselect, setRequiredLabel, setRequiredPosition, setStyle, setTabindex, setTemplate, setTemplateDir, setTemplateEngineManager, setTitle, setTooltip, setTooltipConfig, setTooltipCssClass, setTooltipDelay, setTooltipIconPath, setUIThemeExpansionToken, setValue`

Methods inherited from class org.apache.struts2.components.Component
`addAllParameters, addParameter, altSyntax, completeExpressionIfAltSyntax, determineActionURL, determineNamespace, end, fieldError, findAncestor, findString, findString, findStringIfAltSyntax, findValue, findValue, findValue, getComponentStack, getParameters, getStack, getStandardAttributes, isValidTagAttribute, popComponentStack, setActionMapper, setDevMode, setThrowExceptionsOnELFailure, setUrlHelper, stripExpressionIfAltSyntax, toString, usesBody`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### OPEN_TEMPLATE

    public static final String OPEN_TEMPLATE

See Also:
  Constant Field Values

### TEMPLATE

    public static final String TEMPLATE

See Also:
  Constant Field Values

### COMPONENT_NAME

    public static final String COMPONENT_NAME

### targets

    protected String targets

Constructor Detail

### Anchor

    public Anchor(com.opensymphony.xwork2.util.ValueStack stack,
                  javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)

Method Detail

### getDefaultOpenTemplate

    public String getDefaultOpenTemplate()

  Specified by:
    `getDefaultOpenTemplate` in class `ClosingUIBean`

### getDefaultTemplate

    protected String getDefaultTemplate()

  Specified by:
    `getDefaultTemplate` in class `UIBean`

### evaluateExtraParams

    public void evaluateExtraParams()

  Overrides:
    `evaluateExtraParams` in class `AbstractValidateBean`

### setTheme

    public void setTheme(String theme)

  Overrides:
    `setTheme` in class `AbstractRemoteBean`

### setTargets

    public void setTargets(String targets)

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