org.springmodules.validation.commons.taglib
Class JavascriptValidatorTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      javax.servlet.jsp.tagext.BodyTagSupport
          org.springmodules.validation.commons.taglib.JavascriptValidatorTag

All Implemented Interfaces:

Serializable, javax.servlet.jsp.tagext.BodyTag, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.Tag

public class JavascriptValidatorTag
extends javax.servlet.jsp.tagext.BodyTagSupport

Custom tag that generates JavaScript for client side validation based on the validation rules loaded by a ValidatorFactory.

The validator resources needed for this tag are retrieved from a ValidatorFactory bean defined in the web application context or one of its parent contexts. The bean is resolved by type (org.springmodules.commons.validator.ValidatorFactory).

Author:

David Winterfeldt., Daniel Miller

See Also:

Serialized Form

Field Summary

protected String	cdata Hide JavaScript methods in a CDATA section for XHTML when "true".
protected String	dynamicJavascript The dynamic JavaScript objects will only be generated if this is set to "true".
protected String	formName The name of the form that corresponds with the action name in struts-config.xml.
protected String	htmlComment The JavaScript methods will enclosed with html comments if this is set to "true".
protected static String	lineEnd The line ending string.
protected String	methodName This will be used as is for the JavaScript validation method name if it has a value.
protected int	page The current page number of a multi-part form.
protected RequestContext	requestContext
protected String	src The src attribute for html script element (used to include an external script resource).
protected String	staticJavascript The static JavaScript methods will only be printed if this is set to "true".
protected String	xhtml The generated code should be XHTML compliant when "true".

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

bodyContent

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

id, pageContext

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

EVAL_BODY_BUFFERED, EVAL_BODY_TAG

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

JavascriptValidatorTag()

Method Summary

int	doStartTag() Render the JavaScript for to perform validations based on the form name.
String	getCdata() Returns the cdata setting "true" or "false".
String	getDynamicJavascript() Gets whether or not to generate the dynamic JavaScript.
String	getFormName() Gets the key (form name) that will be used to retrieve a set of validation rules to be performed on the bean passed in for validation.
String	getHtmlComment() Gets whether or not to delimit the JavaScript with html comments.
protected String	getJavascriptBegin(String methods) Returns the opening script element and some initial javascript.
protected String	getJavascriptEnd() Returns the closing script element.
protected String	getJavascriptStaticMethods(org.apache.commons.validator.ValidatorResources resources)
String	getMethod() Gets the method name that will be used for the Javascript validation method name if it has a value.
int	getPage() Gets the current page number of a multi-part form.
String	getSrc() Gets the src attribute's value when defining the html script element.
String	getStaticJavascript() Gets whether or not to generate the static JavaScript.
String	getXhtml() Gets whether or not to generate the xhtml code.
void	release() Release any acquired resources.
void	setCdata(String cdata) Sets the cdata status.
void	setDynamicJavascript(String dynamicJavascript) Sets whether or not to generate the dynamic JavaScript.
void	setFormName(String formName) Sets the key (form name) that will be used to retrieve a set of validation rules to be performed on the bean passed in for validation.
void	setHtmlComment(String htmlComment) Sets whether or not to delimit the JavaScript with html comments.
void	setMethod(String methodName) Sets the method name that will be used for the Javascript validation method name if it has a value.
void	setPage(int page) Sets the current page number of a multi-part form.
void	setSrc(String src) Sets the src attribute's value when defining the html script element.
void	setStaticJavascript(String staticJavascript) Sets whether or not to generate the static JavaScript.
void	setXhtml(String xhtml) Sets whether or not to generate the xhtml code.

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

doAfterBody, doEndTag, doInitBody, getBodyContent, getPreviousOut, setBodyContent

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

findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

getParent, setPageContext, setParent

Field Detail

requestContext

protected RequestContext requestContext

formName

protected String formName

The name of the form that corresponds with the action name in struts-config.xml. Specifying a form name places a <script> </script> around the javascript.

lineEnd

protected static String lineEnd

The line ending string.

page

protected int page

The current page number of a multi-part form. Only valid when the formName attribute is set.

methodName

protected String methodName

This will be used as is for the JavaScript validation method name if it has a value. This is the method name of the main JavaScript method that the form calls to perform validations.

staticJavascript

protected String staticJavascript

The static JavaScript methods will only be printed if this is set to "true".

dynamicJavascript

protected String dynamicJavascript

The dynamic JavaScript objects will only be generated if this is set to "true".

src

protected String src

The src attribute for html script element (used to include an external script resource). The src attribute is only recognized when the formName attribute is specified.

htmlComment

protected String htmlComment

The JavaScript methods will enclosed with html comments if this is set to "true".

xhtml

protected String xhtml

The generated code should be XHTML compliant when "true". When true, this setting prevents the htmlComment setting from having an effect.

cdata

protected String cdata

Hide JavaScript methods in a CDATA section for XHTML when "true".

Constructor Detail

JavascriptValidatorTag

public JavascriptValidatorTag()

Method Detail

getFormName

public String getFormName()

Gets the key (form name) that will be used to retrieve a set of validation rules to be performed on the bean passed in for validation.

setFormName

public void setFormName(String formName)

Sets the key (form name) that will be used to retrieve a set of validation rules to be performed on the bean passed in for validation. Specifying a form name places a <script> </script> tag around the javascript.

getPage

public int getPage()

Gets the current page number of a multi-part form. Only field validations with a matching page numer will be generated that match the current page number. Only valid when the formName attribute is set.

setPage

public void setPage(int page)

Sets the current page number of a multi-part form. Only field validations with a matching page numer will be generated that match the current page number. Only valid when the formName attribute is set.

getMethod

public String getMethod()

Gets the method name that will be used for the Javascript validation method name if it has a value. This overrides the auto-generated method name based on the key (form name) passed in.

setMethod

public void setMethod(String methodName)

Sets the method name that will be used for the Javascript validation method name if it has a value. This overrides the auto-generated method name based on the key (form name) passed in.

getStaticJavascript

public String getStaticJavascript()

Gets whether or not to generate the static JavaScript. If this is set to 'true', which is the default, the static JavaScript will be generated.

setStaticJavascript

public void setStaticJavascript(String staticJavascript)

Sets whether or not to generate the static JavaScript. If this is set to 'true', which is the default, the static JavaScript will be generated.

getDynamicJavascript

public String getDynamicJavascript()

Gets whether or not to generate the dynamic JavaScript. If this is set to 'true', which is the default, the dynamic JavaScript will be generated.

setDynamicJavascript

public void setDynamicJavascript(String dynamicJavascript)

Sets whether or not to generate the dynamic JavaScript. If this is set to 'true', which is the default, the dynamic JavaScript will be generated.

getSrc

public String getSrc()

Gets the src attribute's value when defining the html script element.

setSrc

public void setSrc(String src)

Sets the src attribute's value when defining the html script element. The src attribute is only recognized when the formName attribute is specified.

getHtmlComment

public String getHtmlComment()

Gets whether or not to delimit the JavaScript with html comments. If this is set to 'true', which is the default, the htmlComment will be surround the JavaScript.

setHtmlComment

public void setHtmlComment(String htmlComment)

Sets whether or not to delimit the JavaScript with html comments. If this is set to 'true', which is the default, the htmlComment will be surround the JavaScript.

getCdata

public String getCdata()

Returns the cdata setting "true" or "false".

Returns:

String - "true" if JavaScript will be hidden in a CDATA section

setCdata

public void setCdata(String cdata)

Sets the cdata status.

Parameters:

cdata - The cdata to set

getXhtml

public String getXhtml()

Gets whether or not to generate the xhtml code. If this is set to 'true', which is the default, XHTML will be generated.

setXhtml

public void setXhtml(String xhtml)

Sets whether or not to generate the xhtml code. If this is set to 'true', which is the default, XHTML will be generated.

doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspException

Render the JavaScript for to perform validations based on the form name.

Specified by:

doStartTag in interface javax.servlet.jsp.tagext.Tag

Overrides:

doStartTag in class javax.servlet.jsp.tagext.BodyTagSupport

Throws:

javax.servlet.jsp.JspException - if a JSP exception has occurred

release

public void release()

Release any acquired resources.

Specified by:

release in interface javax.servlet.jsp.tagext.Tag

Overrides:

release in class javax.servlet.jsp.tagext.BodyTagSupport

getJavascriptBegin

protected String getJavascriptBegin(String methods)

Returns the opening script element and some initial javascript.

getJavascriptStaticMethods

protected String getJavascriptStaticMethods(org.apache.commons.validator.ValidatorResources resources)

getJavascriptEnd

protected String getJavascriptEnd()

Returns the closing script element.