pt.moredata.taglibs.protectcontent
Class AbstractContentTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      pt.moredata.taglibs.protectcontent.AbstractContentTag

All Implemented Interfaces:

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

Direct Known Subclasses:

DoIfAuthorizedTag, DoIfNotAuthorizedTag

public abstract class AbstractContentTag

extends javax.servlet.jsp.tagext.TagSupport

implements javax.servlet.jsp.tagext.TryCatchFinally

AbstractContentTag.java Implementação abstracata de uma tag que permite proteger um determinado conteudo. O conteudo definido dentro do corpo desta tag será ou não incluido se forem compridos os critérios definidos pela politica de acesso ao conteudo protegido definidos atraves de uma tag AbstractPolicyTag ou qualquer outra tag que a estenda. Company MoreData

Version:

$Revision: 1.3 $

Author:

pcarmo

See Also:

Serialized Form

Field Summary

protected ProtectedContentTag

_parent Tag onde esta tag deve ser aninhada.

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

AbstractContentTag()

Method Summary

void	doCatch(java.lang.Throwable t) Invoked if a Throwable occurs while evaluating the BODY inside a tag or in any of the following methods: Tag.doStartTag(), Tag.doEndTag(), IterationTag.doAfterBody() and BodyTag.doInitBody().
int	doEndTag()
void	doFinally() Invoked in all cases after doEndTag() for any class implementing Tag, IterationTag or BodyTag.
int	doStartTag() Implemetacao da tag.
protected abstract boolean	showContent() Verifica se o conteudo da tag deve ser mostrado ou não.

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

doAfterBody, findAncestorWithClass, getId, getParent, getValue, getValues, release, 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

_parent

protected ProtectedContentTag _parent

Tag onde esta tag deve ser aninhada.

Constructor Detail

AbstractContentTag

public AbstractContentTag()

Method Detail

showContent

protected abstract boolean showContent()

Verifica se o conteudo da tag deve ser mostrado ou não.

doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspTagException

Implemetacao da tag.

Specified by:

doStartTag in interface javax.servlet.jsp.tagext.Tag

Throws:

javax.servlet.jsp.JspTagException

doEndTag

public int doEndTag()
             throws javax.servlet.jsp.JspTagException

Specified by:

doEndTag in interface javax.servlet.jsp.tagext.Tag

Throws:

javax.servlet.jsp.JspTagException

doCatch

public void doCatch(java.lang.Throwable t)
             throws java.lang.Throwable

Invoked if a Throwable occurs while evaluating the BODY inside a tag or in any of the following methods: Tag.doStartTag(), Tag.doEndTag(), IterationTag.doAfterBody() and BodyTag.doInitBody(). This method is not invoked if the Throwable occurs during one of the setter methods. This method may throw an exception (the same or a new one) that will be propagated further up the nest chain. If an exception is thrown, doFinally() will be invoked. This method is intended to be used to respond to an exceptional condition.

Specified by:

doCatch in interface javax.servlet.jsp.tagext.TryCatchFinally

Parameters:

t - - The throwable exception navigating through this tag.

Throws:

java.lang.Throwable - - if the exception is to be rethrown further up the nest chain.

doFinally

public void doFinally()

Invoked in all cases after doEndTag() for any class implementing Tag, IterationTag or BodyTag. This method is invoked even if an exception has occurred in the BODY of the tag, or in any of the following methods: Tag.doStartTag(), Tag.doEndTag(), IterationTag.doAfterBody() and BodyTag.doInitBody(). This method is not invoked if the Throwable occurs during one of the setter methods. This method should not throw an Exception. This method is intended to maintain per-invocation data integrity and resource management actions.

Specified by:

doFinally in interface javax.servlet.jsp.tagext.TryCatchFinally