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java.lang.Objectjavax.servlet.jsp.tagext.TagSupport
javax.servlet.jsp.tagext.BodyTagSupport
A base class for defining tag handlers implementing BodyTag.
The BodyTagSupport class implements the BodyTag interface and adds additional convenience methods including getter methods for the bodyContent property and methods to get at the previous out JspWriter.
Many tag handlers will extend BodyTagSupport and only redefine a few methods.
Field Summary | |
protected BodyContent |
bodyContent
The current BodyContent for this BodyTag. |
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 | |
BodyTagSupport()
Default constructor, all subclasses are required to only define a public constructor with the same signature, and to call the superclass constructor. |
Method Summary | |
int |
doAfterBody()
After the body evaluation: do not reevaluate and continue with the page. |
int |
doEndTag()
Default processing of the end tag returning EVAL_PAGE. |
void |
doInitBody()
Prepare for evaluation of the body just before the first body evaluation: no action. |
int |
doStartTag()
Default processing of the start tag returning EVAL_BODY_BUFFERED. |
BodyContent |
getBodyContent()
Get current bodyContent. |
JspWriter |
getPreviousOut()
Get surrounding out JspWriter. |
void |
release()
Release state. |
void |
setBodyContent(BodyContent b)
Prepare for evaluation of the body: stash the bodyContent away. |
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 |
protected BodyContent bodyContent
Constructor Detail |
public BodyTagSupport()
Method Detail |
public int doStartTag() throws JspException
doStartTag
in interface Tag
doStartTag
in class TagSupport
JspException
- if an error occurred while processing this tagTag.doStartTag()
public int doEndTag() throws JspException
doEndTag
in interface Tag
doEndTag
in class TagSupport
JspException
- if an error occurred while processing this tagTag.doEndTag()
public void setBodyContent(BodyContent b)
setBodyContent
in interface BodyTag
b
- the BodyContentdoAfterBody()
,
doInitBody()
,
BodyTag.setBodyContent(javax.servlet.jsp.tagext.BodyContent)
public void doInitBody() throws JspException
doInitBody
in interface BodyTag
JspException
- if an error occurred while processing this tagsetBodyContent(javax.servlet.jsp.tagext.BodyContent)
,
doAfterBody()
,
BodyTag.doInitBody()
public int doAfterBody() throws JspException
doAfterBody
in interface IterationTag
doAfterBody
in class TagSupport
JspException
- if an error occurred while processing this tagdoInitBody()
,
IterationTag.doAfterBody()
public void release()
release
in interface Tag
release
in class TagSupport
Tag.release()
public BodyContent getBodyContent()
public JspWriter getPreviousOut()
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Copyright 2003 Sun Microsystems, Inc. All rights reserved.