java.lang.Object
- javax.servlet.jsp.tagext.TagSupport
- - org.springframework.web.servlet.tags.RequestContextAwareTag
  - - org.springframework.web.servlet.tags.HtmlEscapingAwareTag
    - - org.springframework.web.servlet.tags.form.AbstractFormTag
      - org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag
        org.springframework.web.servlet.tags.form.AbstractHtmlElementTag
        org.springframework.web.servlet.tags.form.AbstractHtmlInputElementTag
        org.springframework.web.servlet.tags.form.AbstractCheckedElementTag
        org.springframework.web.servlet.tags.form.AbstractSingleCheckedElementTag
        org.springframework.web.servlet.tags.form.CheckboxTag

All Implemented Interfaces:
Serializable, DynamicAttributes, IterationTag, JspTag, Tag, TryCatchFinally, EditorAwareTag
```
public class CheckboxTag
extends AbstractSingleCheckedElementTag
```
Databinding-aware JSP tag for rendering an HTML 'input' element with a 'type' of 'checkbox'.
May be used in one of three different approaches depending on the type of the bound value.
Approach One
When the bound value is of type Boolean then the 'input(checkbox)' is marked as 'checked' if the bound value is true. The 'value' attribute corresponds to the resolved value of the value property.
Approach Two
When the bound value is of type Collection then the 'input(checkbox)' is marked as 'checked' if the configured value is present in the bound Collection.
Approach Three
For any other bound value type, the 'input(checkbox)' is marked as 'checked' if the configured value is equal to the bound value.
Since:
2.0
Author:
Rob Harrop, Juergen Hoeller
See Also:
Serialized Form

Field Summary
- Fields inherited from class org.springframework.web.servlet.tags.form.AbstractHtmlInputElementTag
  ACCESSKEY_ATTRIBUTE, DISABLED_ATTRIBUTE, ONBLUR_ATTRIBUTE, ONCHANGE_ATTRIBUTE, ONFOCUS_ATTRIBUTE, READONLY_ATTRIBUTE
- Fields inherited from class org.springframework.web.servlet.tags.form.AbstractHtmlElementTag
  CLASS_ATTRIBUTE, DIR_ATTRIBUTE, LANG_ATTRIBUTE, ONCLICK_ATTRIBUTE, ONDBLCLICK_ATTRIBUTE, ONKEYDOWN_ATTRIBUTE, ONKEYPRESS_ATTRIBUTE, ONKEYUP_ATTRIBUTE, ONMOUSEDOWN_ATTRIBUTE, ONMOUSEMOVE_ATTRIBUTE, ONMOUSEOUT_ATTRIBUTE, ONMOUSEOVER_ATTRIBUTE, ONMOUSEUP_ATTRIBUTE, STYLE_ATTRIBUTE, TABINDEX_ATTRIBUTE, TITLE_ATTRIBUTE
- Fields inherited from class org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag
  NESTED_PATH_VARIABLE_NAME
- Fields inherited from class org.springframework.web.servlet.tags.RequestContextAwareTag
  logger, REQUEST_CONTEXT_PAGE_ATTRIBUTE
- Fields inherited from class javax.servlet.jsp.tagext.TagSupport
  pageContext
- Fields inherited from interface javax.servlet.jsp.tagext.IterationTag
  EVAL_BODY_AGAIN
- Fields inherited from interface javax.servlet.jsp.tagext.Tag
  EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary
Constructors
Constructor Description
CheckboxTag()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected String`	`getInputType()`	Return the type of the HTML input element to generate: "checkbox" or "radio".
`protected int`	`writeTagContent(TagWriter tagWriter)`	Renders the '`input(radio)`' element with the configured `value`.
`protected void`	`writeTagDetails(TagWriter tagWriter)`	Write the details for the given primary tag: i.e.

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractSingleCheckedElementTag
getLabel, getValue, setLabel, setValue

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractCheckedElementTag
autogenerateId, isValidDynamicAttribute, renderFromBoolean, renderFromValue, renderFromValue

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractHtmlInputElementTag
getAccesskey, getOnblur, getOnchange, getOnfocus, isDisabled, isReadonly, setAccesskey, setDisabled, setOnblur, setOnchange, setOnfocus, setReadonly, writeOptionalAttributes

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractHtmlElementTag
getCssClass, getCssErrorClass, getCssStyle, getDir, getDynamicAttributes, getLang, getOnclick, getOndblclick, getOnkeydown, getOnkeypress, getOnkeyup, getOnmousedown, getOnmousemove, getOnmouseout, getOnmouseover, getOnmouseup, getTabindex, getTitle, resolveCssClass, setCssClass, setCssErrorClass, setCssStyle, setDir, setDynamicAttribute, setLang, setOnclick, setOndblclick, setOnkeydown, setOnkeypress, setOnkeyup, setOnmousedown, setOnmousemove, setOnmouseout, setOnmouseover, setOnmouseup, setTabindex, setTitle, writeDefaultAttributes

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag
convertToDisplayString, doFinally, getBindStatus, getBoundValue, getEditor, getId, getName, getNestedPath, getPath, getPropertyEditor, getPropertyPath, processFieldValue, resolveId, setId, setPath

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractFormTag
createTagWriter, doStartTagInternal, evaluate, getDisplayString, getDisplayString, isDefaultHtmlEscape, writeOptionalAttribute

Methods inherited from class org.springframework.web.servlet.tags.HtmlEscapingAwareTag
htmlEscape, isHtmlEscape, isResponseEncodedHtmlEscape, setHtmlEscape

Methods inherited from class org.springframework.web.servlet.tags.RequestContextAwareTag
doCatch, doStartTag, getRequestContext

Methods inherited from class javax.servlet.jsp.tagext.TagSupport
doAfterBody, doEndTag, findAncestorWithClass, getParent, getValue, getValues, release, removeValue, setPageContext, setParent, setValue

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

- Constructor Detail
  - CheckboxTag
```
public CheckboxTag()
```
- Method Detail
  - writeTagContent
```
protected int writeTagContent(TagWriter tagWriter)
                       throws JspException
```
    Description copied from class: AbstractSingleCheckedElementTag
    Renders the 'input(radio)' element with the configured value. Marks the element as checked if the value matches the bound value.
    Overrides:
    writeTagContent in class AbstractSingleCheckedElementTag
    Returns:
    valid tag render instruction as per Tag.doStartTag().
    Throws:
    JspException
  - writeTagDetails
```
protected void writeTagDetails(TagWriter tagWriter)
                        throws JspException
```
    Description copied from class: AbstractSingleCheckedElementTag
    Write the details for the given primary tag: i.e. special attributes and the tag's value.
    Specified by:
    writeTagDetails in class AbstractSingleCheckedElementTag
    Throws:
    JspException
  - getInputType
```
protected String getInputType()
```
    Description copied from class: AbstractCheckedElementTag
    Return the type of the HTML input element to generate: "checkbox" or "radio".
    Specified by:
    getInputType in class AbstractCheckedElementTag

Class CheckboxTag

Approach One

Approach Two

Approach Three

Field Summary

Fields inherited from class org.springframework.web.servlet.tags.form.AbstractHtmlInputElementTag

Fields inherited from class org.springframework.web.servlet.tags.form.AbstractHtmlElementTag

Fields inherited from class org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag

Fields inherited from class org.springframework.web.servlet.tags.RequestContextAwareTag

Fields inherited from class javax.servlet.jsp.tagext.TagSupport

Fields inherited from interface javax.servlet.jsp.tagext.IterationTag

Fields inherited from interface javax.servlet.jsp.tagext.Tag

Constructor Summary

Method Summary

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractSingleCheckedElementTag

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractCheckedElementTag

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractHtmlInputElementTag

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractHtmlElementTag

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag

Methods inherited from class org.springframework.web.servlet.tags.form.AbstractFormTag

Methods inherited from class org.springframework.web.servlet.tags.HtmlEscapingAwareTag

Methods inherited from class org.springframework.web.servlet.tags.RequestContextAwareTag

Methods inherited from class javax.servlet.jsp.tagext.TagSupport

Methods inherited from class java.lang.Object

Constructor Detail

CheckboxTag

Method Detail

writeTagContent

writeTagDetails

getInputType