Use doStartTag for inits, doEndTag for cleanups. release will be invoked
from destroy.
> Date: Mon, 11 Nov 2002 20:34:13 +0100
> From: [EMAIL PROTECTED] (Torsten Fohrer)
> Subject: Re: TagHandlerPool doesn't release Tags on reuse
> X-Sender: [EMAIL PROTECTED]
> To: Tomcat Developers List <[EMAIL PROTECTED]>
> Content-disposition: inline
>
>
> But if i looking into the generated jsp/servlet sources, i see the following:
>
> --------------- example ---
> /* ---- tools:simpleCell ---- */
> de.dcsi.util.jsp.taglibs.Validator_SimpleCell
> _jspx_th_tools_simpleCell_0 = (de.dcsi.util.jsp.taglibs.Validator_SimpleCell)
> _jspx_
>
tagPool_tools_simpleCell_width_valign_messageName_height_errorName_errorColor.ge
t(de.dcsi.util.jsp.taglibs.Validator_SimpleCell.class);
> _jspx_th_tools_simpleCell_0.setPageContext(pageContext);
> _jspx_th_tools_simpleCell_0.setParent(null);
> _jspx_th_tools_simpleCell_0.setErrorName("messages");
> _jspx_th_tools_simpleCell_0.setMessageName("login");
> _jspx_th_tools_simpleCell_0.setHeight("30");
> _jspx_th_tools_simpleCell_0.setValign("top");
> _jspx_th_tools_simpleCell_0.setWidth("14%");
> _jspx_th_tools_simpleCell_0.setErrorColor( errorColor );
> int _jspx_eval_tools_simpleCell_0 =
> _jspx_th_tools_simpleCell_0.doStartTag();
> if (_jspx_th_tools_simpleCell_0.doEndTag() ==
> javax.servlet.jsp.tagext.Tag.SKIP_PAGE)
> return;
>
>
> -------- example
>
> If i now reset my tag to a initial state in doStartTag() i haven't any
> properties set........
>
> Who call the release method in reaction of the GC, finalize can't it.
>
> On Monday 11 November 2002 18:44, Kin-Man Chung wrote:
> > According to the JSP 1.2 Spec, the release method is not invoked between
> > tag usages, but is invoked before GC of the tag handler. Therefore
> > it should not be used to reset the tag handler to its initial state;
> > you should do that in doStartTag. See p164 and p166.
> >
> > > Date: Mon, 11 Nov 2002 13:32:31 +0100
> > > From: Torsten Fohrer <[EMAIL PROTECTED]>
> > > Subject: TagHandlerPool doesn't release Tags on reuse
> > > To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
> > >
> > >
> > > I have some jsp sites which taglibs. With pooling enabled, some problems
> > > occures.
> > >
> > > Samples:
> > >
> > > Customer Registration: all fields have the same values???
> > > Sessions Values are used together
> > >
> > > After reading the jsp spezifikation and source of the
> > > jasper/runtime/TagHandlerPool, i see that the pool doesn't call release
> > > in his reuse method?
> > >
> > > After adding a general release in the reuse methode, which perhaps breaks
> > > the lifecycle of the IterationTag ( see jsp-spec, page 168 ) it's
> > > working.
> > >
> > > /**
> > > * Adds the given tag handler to this tag handler pool, unless this
> > > tag * handler pool has already reached its capacity, in which case the
> > > tag * handler's release() method is called.
> > > *
> > > * @param handler Tag handler to add to this tag handler pool
> > > */
> > > public synchronized void reuse(Tag handler) {
> > >
> > > // Releasing Tags, see jsp spec 1.2-fcs, page 172
> > > handler.release();
> > >
> > > if (current < (handlers.length - 1))
> > > handlers[++current] = handler;
> > > }
> > >
> > > Torsten Fohrer
> > >
> > > **********************************************************
> > > * DCSI AG * Tel.: +49 7131 155 88-0 *
> > > * Lessingstrasse 17-19 * Fax.: +49 7131 155 88-99 *
> > > * D-74076 Heilbronn * [EMAIL PROTECTED] *
> > > * GERMANY * http://www.dcsi.de *
> > > **********************************************************
> > >
> > > --
> > > To unsubscribe, e-mail:
> > > <mailto:tomcat-dev-unsubscribe@;jakarta.apache.org> For additional
> > > commands, e-mail: <mailto:tomcat-dev-help@;jakarta.apache.org>
> >
> > --
> > To unsubscribe, e-mail:
> > <mailto:tomcat-dev-unsubscribe@;jakarta.apache.org> For additional commands,
> > e-mail: <mailto:tomcat-dev-help@;jakarta.apache.org>
>
>
> --
> To unsubscribe, e-mail: <mailto:tomcat-dev-unsubscribe@;jakarta.apache.org>
> For additional commands, e-mail: <mailto:tomcat-dev-help@;jakarta.apache.org>
>
--
To unsubscribe, e-mail: <mailto:tomcat-dev-unsubscribe@;jakarta.apache.org>
For additional commands, e-mail: <mailto:tomcat-dev-help@;jakarta.apache.org>
