com.devsphere.xml.taglib.process.tag
Class Start

java.lang.Object
  |
  +--javax.servlet.jsp.tagext.TagSupport
        |
        +--javax.servlet.jsp.tagext.BodyTagSupport
              |
              +--com.devsphere.xml.taglib.support.tag.CommonSupport
                    |
                    +--com.devsphere.xml.taglib.process.tag.ProcessSupport
                          |
                          +--com.devsphere.xml.taglib.process.tag.Start

All Implemented Interfaces:

javax.servlet.jsp.tagext.BodyTag, javax.servlet.jsp.tagext.IterationTag, java.io.Serializable, javax.servlet.jsp.tagext.Tag, javax.servlet.jsp.tagext.TryCatchFinally

public class Start

extends ProcessSupport

Handler for the <p:start> tag, whose body can process a startElement() or startDocument() SAX event.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.devsphere.xml.taglib.process.tag.ProcessSupport

ancestor, event, handler, indentLevel

Fields inherited from class com.devsphere.xml.taglib.support.tag.CommonSupport

cachedDebug, cachedLogger, DEBUG_ATTR, DEFAULT_DEBUG, DEFAULT_RESTORE_VALUE, DEFAULT_SCOPE, LOGGER_ATTR, originalValues

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

Start()

Method Summary

protected boolean	continueLoop() Returns false since the tag's body needs to be evaluated only once in order to process the event.
protected java.util.List	getAllowedAncestors() Returns the list of names of the tags that may contain the tag that is handled by this class.
java.lang.String	getTagName() Returns the name of the handled tag
protected void	init() Initializes the fields of this tag handler.
protected void	initLoop() Initializes the loop to process start-element and start-document events.
protected boolean	startLoop() Returns true if the current event is a StartElement or StartDocument instance.

Methods inherited from class com.devsphere.xml.taglib.process.tag.ProcessSupport

doAfterBody, doEndTag, doFinally, doStartTag, finalizeLoop, getEvent, logEvent, logEvent, removeEvent, validate

Methods inherited from class com.devsphere.xml.taglib.support.tag.CommonSupport

checkVarName, checkVarScope, doCatch, eval, evalBoolean, evalDouble, evalInt, evalString, export, export, getDebug, getLogger, log, log, log, restore

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

doInitBody, getBodyContent, getPreviousOut, release, 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

Constructor Detail

Start

public Start()

Method Detail

init

protected void init()

Initializes the fields of this tag handler.

Overrides:

init in class ProcessSupport

getTagName

public java.lang.String getTagName()

Returns the name of the handled tag

Specified by:

getTagName in class CommonSupport

Returns:

the name of the handled tag

getAllowedAncestors

protected java.util.List getAllowedAncestors()

Returns the list of names of the tags that may contain the tag that is handled by this class.

Specified by:

getAllowedAncestors in class CommonSupport

Returns:

the list of names of the allowed ancestor tags or null if the tag context doesn't matter.

initLoop

protected void initLoop()
                 throws javax.servlet.jsp.JspException

Initializes the loop to process start-element and start-document events.

Overrides:

initLoop in class ProcessSupport

Throws:

javax.servlet.jsp.JspException - to signal any tag validation error

startLoop

protected boolean startLoop()
                     throws javax.servlet.jsp.JspException

Returns true if the current event is a StartElement or StartDocument instance. The element variables are re-exported just in case some other contained tag modified their values.

Specified by:

startLoop in class ProcessSupport

Returns:

true if the event loop should be started

Throws:

javax.servlet.jsp.JspException - to signal an error

continueLoop

protected boolean continueLoop()
                        throws javax.servlet.jsp.JspException

Returns false since the tag's body needs to be evaluated only once in order to process the event.

Specified by:

continueLoop in class ProcessSupport

Returns:

false

Throws:

javax.servlet.jsp.JspException - to signal an error