IfTag

java.lang.Object
- javax.servlet.jsp.tagext.TagSupport
- - javax.servlet.jsp.jstl.core.ConditionalTagSupport
  - - org.apache.taglibs.standard.tag.common.xml.IfTag

All Implemented Interfaces:

java.io.Serializable, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag
```
public class IfTag
extends ConditionalTagSupport
```
Tag handler for <if> in JSTL's XML library.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

private org.apache.xpath.XPath select
- 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

Constructor Summary

Constructors
Constructor Description

IfTag()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected boolean`	`condition()`	Subclasses implement this method to compute the boolean result of the conditional action.
`void`	`release()`	Releases any resources this ConditionalTagSupport may have (or inherit).
`void`	`setSelect(java.lang.String select)`

Methods inherited from class javax.servlet.jsp.jstl.core.ConditionalTagSupport
doStartTag, setScope, setVar

Methods inherited from class javax.servlet.jsp.tagext.TagSupport
doAfterBody, doEndTag, 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

- Field Detail
  - select
```
private org.apache.xpath.XPath select
```
- Constructor Detail
  - IfTag
```
public IfTag()
```
- Method Detail
  - release
```
public void release()
```
    Description copied from class: ConditionalTagSupport
    
    Releases any resources this ConditionalTagSupport may have (or inherit).
    
    Specified by:
    
    release in interface javax.servlet.jsp.tagext.Tag
    
    Overrides:
    
    release in class ConditionalTagSupport
  - condition
```
protected boolean condition()
                     throws javax.servlet.jsp.JspTagException
```
    Description copied from class: ConditionalTagSupport
    
    Subclasses implement this method to compute the boolean result of the conditional action. This method is invoked once per tag invocation by doStartTag().
    
    Specified by:
    
    condition in class ConditionalTagSupport
    
    Returns:
    
    a boolean representing the condition that a particular subclass uses to drive its conditional logic.
    
    Throws:
    
    javax.servlet.jsp.JspTagException
  - setSelect
```
public void setSelect(java.lang.String select)
```