XSLT 2.0 has provided many new
features out of which one is of <xsl:for-each-group> defined as:
---------------------------------------------------------------
<xsl:for-each-group
select = expression
group-by? = expression
group-adjacent? = expression
group-starting-with? = pattern
group-ending-with? = pattern
collation? = { uri }>
</xsl:for-each-group>
select = expression
group-by? = expression
group-adjacent? = expression
group-starting-with? = pattern
group-ending-with? = pattern
collation? = { uri }>
</xsl:for-each-group>
---------------------------------------------------------------
In SOA
11g I have faced such an issue where <xsl:for-each-group> was not getting executed and producing
errors. For such scenarios we need to convert the <xsl:for-each-group> to <xsl:for-each> of version 1.0.
Hence some logic has been implemented for this conversion.
We can try to implement this conversion by Implementation
of a Key based on some of the Common_Id's like some ID/Number. By this we can
implement the logic of group-by function.
The main element used in this implementation if <xsl:key>
The pseudo code for implementing the logic is like:
---------------------------------------------------------------
<xsl:key
name="<<KEY_NAME>>"
match="<<Element_Match>>"
use="<<Common_ID>>"/>
name="<<KEY_NAME>>"
match="<<Element_Match>>"
use="<<Common_ID>>"/>
---------------------------------------------------------------
<xsl:for-each
select="key('<<KEY_NAME>>','<<Common_ID>>')">
<xsl:value-of select="<<Common_ID>>"/>
<xsl:value-of select="<<Common_ID>>"/>
<xsl:value-of select="<<Element_Value>>"/>
</xsl:for-each>
---------------------------------------------------------------
Feedback and comments provided
will be very beneficial.
Thanks.
References: www.w3.org/TR/xslt20/#xsl-for-each-group
