Re: [xsl] Best practices - using vars

[xptm@xxxxxxx]

I think i misunderstood the all thing, and the example isn't good as well...

Let me try again:

  <xsl:variable name="form-base" select="/Formatos/Forms/Form[1]" />

returns a node that i can later use like this:

  <xsl:variable name="MasterTable" select="$form-base/MasterTable"/>

But if i have

  <xsl:variable name="form-base">
   <xsl:value-of select="/Formatos/Forms/Form[1]" />
  </xsl:variable>

then i have a string representation of the childnodes of
/Formatos/Forms/Form[1], and i can't use it to further go down the tree?





Quoting xptm@xxxxxxx:

> In the particular case of xtabnode i realy want a node to be passed as
> argument
> to a Java method (that expects a org.w3c.dom.Node).
>
> In the other cases, tought, you're saying it's best to use
>
>   <xsl:variable name="sqlInsert" select="sql:getStatement($MasterTable,
$sql,
> $where, $where, $xtabnode, 'I' )" />
>
> instead of
>
>   <xsl:variable name="sqlInsert">
>     <xsl:value-of select="sql:getStatement($MasterTable, $sql, $where,
> $where,
> $xtabnode, 'I' )" />
>
> because the first returns a string and the second a node with a node text
> that
> contains a string?
>
> Did i understand correctly?
>
>
>
> Quoting David Carlisle <davidc@xxxxxxxxx>:
>
> >
> > > What is the cost of using vars? I'm doing this, for instance:
> >
> > higher if you use them as you have with content rather than a select
> > attribute.
> >
> >
> >   <xsl:variable name="xtabnode">
> >     <xsl:value-of
> >
>
select="document(concat('.\DicionarioXml\',$MasterTable,'.xml'))/Estrutura/Ta
belas/Tabela[Nome=$MasterTable]"/>
> >   </xsl:variable>
> >
> > produces a result tree fragment with a root node and child a text node
> > with string value the string you want. When this result tree fragment is
> > used, it  has to be coerced back to a string.
> >
> >   <xsl:variable name="xtabnode">
> >
> >
>
select="document(concat('.\DicionarioXml\',$MasterTable,'.xml'))/Estrutura/Ta
belas/Tabela[Nome=$MasterTable]"/>
> >
> >
> > is less to type and makes the variable have (a pointer to) the Tabela
> > node in the specified document.
> >
> > or perhaps
> >
> >
> >   <xsl:variable name="xtabnode">
> >
> >
>
select="string(document(concat('.\DicionarioXml\',$MasterTable,'.xml'))/Estru
tura/Tabelas/Tabela[Nome=$MasterTable])"/>
> >
> > in which case the variable holds the string value itself.
> >
> > similarly all your other variable declarations should have select=
> >
> > David
> >
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