public class ErrorsTag extends AbstractHtmlElementBodyTag
This tag supports three main usage patterns:
path
' to the field name (or path)path
'path
' to '*
'Modifier and Type | Field and Description |
---|---|
private java.lang.String |
delimiter |
private java.lang.String |
element |
private boolean |
errorMessagesWereExposed |
static java.lang.String |
MESSAGES_ATTRIBUTE
The key under which this tag exposes error messages in
the
page context scope . |
private java.lang.Object |
oldMessages
Stores any value that existed in the 'errors messages' before the tag was started.
|
static java.lang.String |
SPAN_TAG
The HTML '
span ' tag. |
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
NESTED_PATH_VARIABLE_NAME
logger, REQUEST_CONTEXT_PAGE_ATTRIBUTE
Constructor and Description |
---|
ErrorsTag() |
Modifier and Type | Method and Description |
---|---|
protected java.lang.String |
autogenerateId()
Get the value for the HTML '
id ' attribute. |
protected void |
exposeAttributes()
Exposes any bind status error messages under
this key
in the PageContext#PAGE_SCOPE . |
java.lang.String |
getDelimiter()
Return the delimiter to be used between error messages.
|
java.lang.String |
getElement()
Get the HTML element must be used to render the error messages.
|
protected java.lang.String |
getName()
Get the value for the HTML '
name ' attribute. |
protected void |
removeAttributes()
Removes any bind status error messages that were previously stored under
this key in the PageContext#PAGE_SCOPE . |
protected void |
renderDefaultContent(TagWriter tagWriter) |
void |
setDelimiter(java.lang.String delimiter)
Set the delimiter to be used between error messages.
|
void |
setElement(java.lang.String element)
Set the HTML element must be used to render the error messages.
|
protected boolean |
shouldRender()
Should rendering of this tag proceed at all?
|
doEndTag, doFinally, doInitBody, flushBufferedBodyContent, onWriteTagContent, renderFromBodyContent, setBodyContent, writeTagContent
getCssClass, getCssErrorClass, getCssStyle, getDir, getDynamicAttributes, getLang, getOnclick, getOndblclick, getOnkeydown, getOnkeypress, getOnkeyup, getOnmousedown, getOnmousemove, getOnmouseout, getOnmouseover, getOnmouseup, getTabindex, getTitle, isValidDynamicAttribute, resolveCssClass, setCssClass, setCssErrorClass, setCssStyle, setDir, setDynamicAttribute, setLang, setOnclick, setOndblclick, setOnkeydown, setOnkeypress, setOnkeyup, setOnmousedown, setOnmousemove, setOnmouseout, setOnmouseover, setOnmouseup, setTabindex, setTitle, writeDefaultAttributes, writeOptionalAttributes
convertToDisplayString, getBindStatus, getBoundValue, getEditor, getId, getNestedPath, getPath, getPropertyEditor, getPropertyPath, processFieldValue, resolveId, setId, setPath
createTagWriter, doStartTagInternal, evaluate, getDisplayString, getDisplayString, isDefaultHtmlEscape, writeOptionalAttribute
htmlEscape, isHtmlEscape, isResponseEncodedHtmlEscape, setHtmlEscape
doCatch, doStartTag, getRequestContext
public static final java.lang.String MESSAGES_ATTRIBUTE
page context scope
.public static final java.lang.String SPAN_TAG
span
' tag.private java.lang.String element
private java.lang.String delimiter
private java.lang.Object oldMessages
private boolean errorMessagesWereExposed
public void setElement(java.lang.String element)
Defaults to an HTML '<span/>
' tag.
public java.lang.String getElement()
public void setDelimiter(java.lang.String delimiter)
Defaults to an HTML '<br/>
' tag.
public java.lang.String getDelimiter()
protected java.lang.String autogenerateId() throws JspException
id
' attribute.
Appends '.errors
' to the value returned by AbstractDataBoundFormElementTag.getPropertyPath()
or to the model attribute name if the <form:errors/>
tag's
'path
' attribute has been omitted.
autogenerateId
in class AbstractDataBoundFormElementTag
id
' attributeJspException
AbstractDataBoundFormElementTag.getPropertyPath()
protected java.lang.String getName() throws JspException
name
' attribute.
Simply returns null
because the 'name
' attribute
is not a validate attribute for the 'span
' element.
getName
in class AbstractDataBoundFormElementTag
name
' attributeJspException
protected boolean shouldRender() throws JspException
Only renders output when there are errors for the configured path
.
shouldRender
in class AbstractHtmlElementBodyTag
true
only when there are errors for the configured path
JspException
protected void renderDefaultContent(TagWriter tagWriter) throws JspException
renderDefaultContent
in class AbstractHtmlElementBodyTag
JspException
protected void exposeAttributes() throws JspException
this key
in the PageContext#PAGE_SCOPE
.
Only called if shouldRender()
returns true
.
exposeAttributes
in class AbstractHtmlElementBodyTag
JspException
removeAttributes()
protected void removeAttributes()
this key
in the PageContext#PAGE_SCOPE
.removeAttributes
in class AbstractHtmlElementBodyTag
exposeAttributes()