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org.apache.taglibs.standard.tag.common.xml
Class ForEachTag  

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      javax.servlet.jsp.jstl.core.LoopTagSupport
          org.apache.taglibs.standard.tag.common.xml.ForEachTag

All Implemented Interfaces:

javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.jstl.core.LoopTag, java.io.Serializable, javax.servlet.jsp.tagext.Tag, javax.servlet.jsp.tagext.TryCatchFinally

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public class ForEachTag

extends javax.servlet.jsp.jstl.core.LoopTagSupport

Support for the XML library's <forEach> tag.

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Field Summary
private  org.w3c.dom.Node	current
private  java.util.List	nodes
private  int	nodesIndex
private  java.lang.String	select

 

Fields inherited from class javax.servlet.jsp.jstl.core.LoopTagSupport

begin, beginSpecified, end, endSpecified, itemId, statusId, step, stepSpecified

 

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

id, pageContext

 

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

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

 

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

EVAL_BODY_AGAIN

 

Constructor Summary

ForEachTag()

 

Method Summary
org.w3c.dom.Node	getContext()
protected  boolean	hasNext()           Returns information concerning the availability of more items over which to iterate.
private  void	init()           (Re)initializes state (during release() or construction)
protected  java.lang.Object	next()           Returns the next object over which the tag should iterate.
protected  void	prepare()           Prepares for a single tag invocation.
void	release()           Releases any resources this LoopTagSupport may have (or inherit).
void	setBegin(int begin)
void	setEnd(int end)
void	setSelect(java.lang.String select)
void	setStep(int step)

 

Methods inherited from class javax.servlet.jsp.jstl.core.LoopTagSupport

doAfterBody, doCatch, doFinally, doStartTag, getCurrent, getLoopStatus, setVar, setVarStatus, validateBegin, validateEnd, validateStep

 

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

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

 

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

doEndTag, getParent, setPageContext, setParent

 

Field Detail

select

private java.lang.String select

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nodes

private java.util.List nodes

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nodesIndex

private int nodesIndex

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current

private org.w3c.dom.Node current

Constructor Detail

ForEachTag

public ForEachTag()

Method Detail

prepare

protected void prepare()
                throws javax.servlet.jsp.JspTagException

Description copied from class: javax.servlet.jsp.jstl.core.LoopTagSupport

Prepares for a single tag invocation. Specifically, allows subclasses to prepare for calls to hasNext() and next(). Subclasses can assume that prepare() will be called once for each invocation of doStartTag() in the superclass.

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hasNext

protected boolean hasNext()
                   throws javax.servlet.jsp.JspTagException

Description copied from class: javax.servlet.jsp.jstl.core.LoopTagSupport

Returns information concerning the availability of more items over which to iterate. This method must be provided by concrete subclasses of LoopTagSupport to assist the iterative logic provided by the supporting base class.

See next for more information about the purpose and expectations behind this tag.

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next

protected java.lang.Object next()
                         throws javax.servlet.jsp.JspTagException

Description copied from class: javax.servlet.jsp.jstl.core.LoopTagSupport

Returns the next object over which the tag should iterate. This method must be provided by concrete subclasses of LoopTagSupport to inform the base logic about what objects it should iterate over.

It is expected that this method will generally be backed by an Iterator, but this will not always be the case. In particular, if retrieving the next object raises the possibility of an exception being thrown, this method allows that exception to propagate back to the JSP container as a JspTagException; a standalone Iterator would not be able to do this. (This explains why LoopTagSupport does not simply call for an Iterator from its subtags.)

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release

public void release()

Description copied from class: javax.servlet.jsp.jstl.core.LoopTagSupport

Releases any resources this LoopTagSupport may have (or inherit).

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setSelect

public void setSelect(java.lang.String select)

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setBegin

public void setBegin(int begin)
              throws javax.servlet.jsp.JspTagException

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setEnd

public void setEnd(int end)
            throws javax.servlet.jsp.JspTagException

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setStep

public void setStep(int step)
             throws javax.servlet.jsp.JspTagException

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getContext

public org.w3c.dom.Node getContext()
                            throws javax.servlet.jsp.JspTagException

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init

private void init()

Description copied from class: javax.servlet.jsp.jstl.core.LoopTagSupport

(Re)initializes state (during release() or construction)

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> taglibs >> standard >> tag >> common >> [ xml overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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