ValidatorTag (Java EE 5 SDK)

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Java EE 5 SDK

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javax.faces.webapp Class ValidatorTag

java.lang.Object
  extended by javax.servlet.jsp.tagext.TagSupport
      extended by javax.faces.webapp.ValidatorTag
所有已实现的接口:
Serializable, IterationTag, JspTag, Tag
Deprecated. This has been partially replaced by ValidatorELTag. The remainder of the functionality, namely, the binding facility and the implementation of the createValidator() method, is now an implementation detail. 

public class ValidatorTag
extends TagSupport

ValidatorTag is a base class for all JSP custom actions that create and register a Validator instance on the EditableValueHolder associated with our most immediate surrounding instance of a tag whose implementation class is a subclass of UIComponentTag. To avoid creating duplicate instances when a page is redisplayed, creation and registration of a Validator occurs only if the corresponding UIComponent was created (by the owning UIComponentTag) during the execution of the current page.

This class may be used directly to implement a generic validator registration tag (based on the validator-id specified by the id attribute), or as a base class for tag instances that support specific Validator subclasses. This id attribute must refer to one of the well known validator-ids, or a custom validator-id as defined in a faces-config.xml file.

Subclasses of this class must implement the createValidator() method, which creates and returns a Validator instance. Any configuration properties that specify the limits to be enforced by this Validator must have been set by the createValidator() method. Generally, this occurs by copying corresponding attribute values on the tag instance.

This tag creates no output to the page currently being created. It is used solely for the side effect of Validator creation.

另请参见:
Serialized Form

字段摘要
 
Fields inherited from class javax.servlet.jsp.tagext.TagSupport
id, 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
 
构造器摘要
ValidatorTag()
          Deprecated.  
 
方法摘要
protected  Validator createValidator()
          Deprecated. Create and return a new Validator to be registered on our surrounding UIComponent.
 int doStartTag()
          Deprecated. Create a new instance of the specified Validator class, and register it with the UIComponent instance associated with our most immediately surrounding UIComponentTag instance, if the UIComponent instance was created by this execution of the containing JSP page.
 void release()
          Deprecated. Release references to any acquired resources.
 void setBinding(String binding)
          Deprecated. Set the expression that will be used to create a ValueExpression that references a backing bean property of the Validator instance to be created.
 void setValidatorId(String validatorId)
          Deprecated. Set the identifer of the Validator instance to be created.
 
类方法继承 javax.servlet.jsp.tagext.TagSupport
doAfterBody, doEndTag, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue
 
类方法继承 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

构造器详细信息

ValidatorTag

public ValidatorTag()
Deprecated. 
方法详细信息

setValidatorId

public void setValidatorId(String validatorId)
Deprecated. 

Set the identifer of the Validator instance to be created.

参数:
validatorId - The new identifier of the validator instance to be created.

setBinding

public void setBinding(String binding)
                throws JspException
Deprecated. 

Set the expression that will be used to create a ValueExpression that references a backing bean property of the Validator instance to be created.

参数:
binding - The new expression
抛出异常:
JspException - if a JSP error occurs

doStartTag

public int doStartTag()
               throws JspException
Deprecated. 

Create a new instance of the specified Validator class, and register it with the UIComponent instance associated with our most immediately surrounding UIComponentTag instance, if the UIComponent instance was created by this execution of the containing JSP page.

规范说明:
doStartTag in interface Tag
重写:
doStartTag in class TagSupport
返回:
SKIP_BODY
抛出异常:
JspException - if a JSP error occurs
另请参见:
Tag.doStartTag()

release

public void release()
Deprecated. 

Release references to any acquired resources.

规范说明:
release in interface Tag
重写:
release in class TagSupport
另请参见:
Tag.release()

createValidator

protected Validator createValidator()
                             throws JspException
Deprecated. 

Create and return a new Validator to be registered on our surrounding UIComponent.

抛出异常:
JspException - if a new instance cannot be created
概述  软件包   类  树  已过时  索引  帮助 
Java EE 5 SDK

深圳电信培训中心.徐海蛟老师.
 上一个类   下一个 CLASS 框架    无框架    
摘要: 嵌套 | 字段 | 构造器 | 方法 详细信息: 字段 | 构造器 | 方法
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