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From "Jeroen Cranendonk" <j.cranend...@emaxx.nl>
Subject Fw: using abstract rules in validation schema
Date Wed, 12 Mar 2003 08:23:22 GMT

----- Original Message -----
From: "Robert Kromkamp" <robert@emaxx.nl>
To: "Jeroen Cranendonk" <j.cranendonk@emaxx.nl>
Sent: Wednesday, March 12, 2003 10:16 AM
Subject: using abstract rules in validation schema


> Hi All,
>
> According to the DTD the beneath schema structure is possible. But when I
> use this I get the following error, who can help me?
>
> -----
> An error occurredorg.apache.avalon.framework.CascadingRuntimeException
> Failed loading validating schema
> org.apache.avalon.framework.CascadingRuntimeException: Failed loading
> validating schema org.apache.commons.jxpath.JXPathException: No value for
> xpath: /schema/pattern[1]/rule[1]/@contextOriginal exception :
> org.apache.avalon.framework.CascadingRuntimeException: !!! Failed loading
> Schematron schema at
>
org.apache.cocoon.components.validation.schematron.SchematronFactory.compile
> Schema(SchematronFactory.java:123) at
>
org.apache.cocoon.acting.AbstractXMLFormAction.getFormValidator(AbstractXMLF
> ormAction.java:398) at
>
org.apache.cocoon.acting.AbstractXMLFormAction.getForm(AbstractXMLFormAction
> .java:218) at
>
org.apache.cocoon.acting.AbstractXMLFormAction.act(AbstractXMLFormAction.jav
> a:237) at
>
org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTyp
> eNode.java:139) at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
> keNodes(AbstractParentProcessingNode.java:84) at
>
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invok
> e(PreparableMatchNode.java:164) at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
> keNodes(AbstractParentProcessingNode.java:108) at
>
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(Pipel
> ineNode.java:153) at
> -----
>
>
> <schema xmlns="http://www.ascc.net/xml/schematron">
>     <title>For Rusty's Inquiring Students</title>
>     <p>This is an example of creating a datatype using Schematron's
> "abstract rules"
>      and using them. </p>
>
>     <pattern>
>
>         <!-- Define an abstract rule on a data value (i.e. a type) for
> nt  -->
>         <rule abstract="true" id="int">
>             <assert test="string-length(string-normalize(./text())) &gt;
0"
>                 >This element must contain a value.</assert>
>             <assert test="number(./text())"
>                 >This element should contain an int. An int it a
> number.</assert>
>             <assert test="floor(number(./text())) =
> ceiling(number(./text())) "
>                 >This element should contain an int. An int is a whole
> number.</assert>
>             <assert test="number(./text()) &lt; 2147483647"
>                 >This element should contain an int. An int is less than
> 2^31-1.</assert>
>             <assert test="number(./text()) &gt;= -2147483648"
>                 >This element should contain an int. An int is greater
> than -(2^31).</assert>
>         </rule>
>
>         <!-- Make the assertions -->
>         <rule context="someElement" >
>             <extends rule="int" />
>         </rule>
>         <rule context="someOtherElement">
>             <extends rule="int" />
>             <assert test="number(./text()) &gt; 1969"
>                 >This element should contain a year since 1969</assert>
>         </rule>
>    <pattern>
> </schema>
>
> Thanks,
> Robert Kromkamp
>
>


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