pt.moredata.taglibs.dao
Class IteratorTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      javax.servlet.jsp.tagext.BodyTagSupport
          pt.moredata.taglibs.dao.IteratorTag

All Implemented Interfaces:

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

public class IteratorTag

extends javax.servlet.jsp.tagext.BodyTagSupport

implements javax.servlet.jsp.tagext.TryCatchFinally

DAOIteratorTag.java Implementacao da tag que faz a iteracao aos registos do DataAccessObject Company MoreData

Version:

$Revision: 1.2 $

Author:

pcarmo

See Also:

Serialized Form

Field Summary

protected java.lang.String

uri URI da pagina que fez o pedido.

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

IteratorTag()
Creates a new instance of DAOIteratorTag

Method Summary

int	doAfterBody()
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() Processa o fim da tag.
void	doFinally() Invoked in all cases after doEndTag() for any class implementing Tag, IterationTag or BodyTag.
void	doInitBody()
int	doStartTag() Processa o inicio da tag.
protected DataAccessObject	findDAO(java.lang.String daoName) Devolve o dao dado o nome especificado na tag.
protected void	readUri() Le o uri da pagina.
void	setDaoName(java.lang.String daoName) Setter for property name.
void	setVarName(java.lang.String varName) Setter for property varName.

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

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

Field Detail

uri

protected java.lang.String uri

URI da pagina que fez o pedido.

Constructor Detail

IteratorTag

public IteratorTag()

Creates a new instance of DAOIteratorTag

Method Detail

readUri

protected void readUri()

Le o uri da pagina.

findDAO

protected DataAccessObject findDAO(java.lang.String daoName)
                            throws javax.servlet.jsp.JspTagException

Devolve o dao dado o nome especificado na tag. Este metodo assume que existe um dao com o nome especificado guardado no objecto session.

Parameters:

daoName - A identificacao do DataAccessObject.

Throws:

javax.servlet.jsp.JspTagException - Se o DataAccessObject nao for encontrado na sessao.

doStartTag

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

Processa o inicio da tag.

Specified by:

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

Returns:

A accao que deve ser tomada pelo servidor de .jsp apos ler o inicio da tag.

Throws:

javax.servlet.jsp.JspTagException

doInitBody

public void doInitBody()
                throws javax.servlet.jsp.JspTagException

Specified by:

doInitBody in interface javax.servlet.jsp.tagext.BodyTag

Throws:

javax.servlet.jsp.JspTagException

doAfterBody

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

Specified by:

doAfterBody in interface javax.servlet.jsp.tagext.IterationTag

Throws:

javax.servlet.jsp.JspTagException

doEndTag

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

Processa o fim da tag.

Specified by:

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

Returns:

a accao que deve ser tomada pelo servidor de .jsp apos ler a 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

setDaoName

public void setDaoName(java.lang.String daoName)
                throws javax.servlet.jsp.JspTagException

Setter for property name.

Parameters:

daoName - New value of property name.

Throws:

javax.servlet.jsp.JspTagException - Se nao for encontrado um DAO com o nome especificado.

setVarName

public void setVarName(java.lang.String varName)

Setter for property varName.

Parameters:

varName - New value of property varName.