minimal_object05.o2xSobj File Reference

Simple o2x:object - 5: test visibility and binding. More...

Functions
	XML_code ()
	o2x:object code. More...

Detailed Description

Test of methods visibility and bindig.

data

Data is defined by reference, i.e. using a local file defined by URIref attribute in <o2x:dataValues> tag.

methods

In this o2x:object are 2 methods:

• OBJ.050511.M01, visibility final, only calls OBJ.050511.M02.
• OBJ.050511.M02, visibility protected that does the job.
  This last method, to maximize reuse, allows late and modal binding.

Returns

An HTML fragment: the ship address formatted to print.

Function Documentation

XML_code()

XML_code

(

)

Implementation: data on local file, methods inline.

CORE constraint

Visibility: Only the final visibility is significative. Any not-final visibility is an hint and can be omitted without consequences.
Binding: A method's template can implement:

• The final binding, mandatory for every final method, match="o2x:object[@key = 'a_unique_value']..." is required to select the correct object.
• The modal binding: match="allowed-data-element" mode="a_unique_value"
• The hearly binding is implemented with a 'named template': name = "a_unique_value"
• The late binding match="allowed-data-element" mode="group_id"

A 'non-final' template can implement two binding: modal + hearly or late + hearly: that can make it more useful.
To activate a method:

• A final method usually is activated by 'Realyze()'. In case of o2x:contentList see twopoly_complex08.o2xSobj and xpoly_complex09.o2xSobj.
• The call of a method with modal binding is simple: <xsl:apply-templates [select="allowed-data-element"] mode="a_unique_value"
• Calling a method with hearly binding is equivalent to call a named function: <xsl:call-template name = "a_unique_value" />
• Calling a method with late binding is data-driven: <xsl:apply-templates select="a-data-element" mode="group_id"

-<o2x:object name="minimal_object05" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:o2x="http://www.o2xdl.org/3.0/o2xdl">

<o2x:dataValues URIref="file:////C:/o2xdl-20/samples/minimal_object02_data.xml"/>

-<o2x:method key="OBJ.050511.M01" visibility="final">

-<o2x:inline>

-<!--

 final binding, it now selects the root data element 

-->

-<xsl:template match="o2x:object[@key = 'OBJ.050511.M01']/shipTo">

-<!--

 calls the protected method (hearly binding)  

-->

<xsl:call-template name="OBJ.050511.M02"/>

<br/>

-----------

<br/>

-<!--

 calls the protected method (modal binding)  

-->

<xsl:apply-templates select="." mode="OBJ.050511.M02"/>

</xsl:template>

</o2x:inline>

</o2x:method>

-<o2x:method key="OBJ.050511.M02" visibility="protected">

-<o2x:inline>

-<!--

 standard reusable (not final) method template 

-->

-<!--

 implements both modal and hearly binding  

-->

-<xsl:template match="shipTo" mode="OBJ.050511.M02" name="OBJ.050511.M02">

-<b>

<xsl:value-of select="name"/>

</b>

<br/>

<xsl:value-of select="street"/>

<br/>

<xsl:value-of select="city"/>

,

<xsl:value-of select="state"/>

<xsl:value-of select="zip"/>

<br/>

<xsl:value-of select="@country"/>

</xsl:template>

</o2x:inline>

</o2x:method>

</o2x:object>