Re: if child element does not exist stop generation

> I need to check if there is a <length>-element as child to <sequence>
otherwise I need to terminate my code generation.


When the current node is a "sequence" use:

<xsl:if test="length">
  <!-- Do whatever is necessary here  -->
</xsl:if>


Cheers,
Dimitre Novatchev

On 5/3/05, Mikael Petterson (KI/EAB) <mikael.petterson@xxxxxxxxxxxx> wrote:
> Hi,
>
> I have the following line in my xml:
> =========================
> .....
> <attribute name="reserved">
>   <description>
>     Reference to other product
>   </description>
>   <readOnly/>
>   <dataType>
>     <sequence>
>       <moRef name="Object"/>
>       <length>5</length>
>       <nonUnique/>
>      </sequence>
>    </dataType>
> </attribute>
>
> I need to check if there is a <length>-element as child to <sequence>
otherwise I need to terminate my code generation.
>
> All hints are very much appreciated.
>
> Cheers,
>
> //Mikael
>
> This is my xsl:
>
> <xsl:when test="sequence">
>     <xsl: if test="not(name(./*)='length')">
>      <xsl:message terminate="yes">
>        <!-- class name and attribute error message -->
>         Attribute:<xsl:value-of select="../@name"/>
>         Error:sequence missing <length> child!
>       </xsl:message>
>      </xsl:if>
>  </xsl:when>
>
> I get the following error message:
>
> [java] [Fatal Error] interface.xsl:477:11: Element or attribute do not match
QName production: QName::=(NCName':')?NCName.
>
>     [java] ** Transformer Factory error
>     [java]    javax.xml.transform.TransformerConfigurationException:
javax.xml.transform.TransformerException: org.xml.sax.SAXParseException:
Element or attribute do not match QName production:
QName::=(NCName':')?NCName.
>     [java] javax.xml.transform.TransformerConfigurationException:
javax.xml.transform.TransformerException: org.xml.sax.SAXParseException:
Element or attribute do not match QName production:
QName::=(NCName':')?NCName.
>     [java]     at
org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFac
toryImpl.java:807)
>     [java]     at
org.apache.xalan.processor.TransformerFactoryImpl.newTransformer(TransformerF
actoryImpl.java:666)
>     [java]     at se.ericsson.xml2j.common.Main.main(Main.java:82)
>     [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
>     [java]     at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>     [java]     at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.
java:25)
>     [java]     at java.lang.reflect.Method.invoke(Method.java:324)
>     [java]     at
org.apache.tools.ant.taskdefs.ExecuteJava.run(ExecuteJava.java:193)
>     [java]     at
org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:130)
>     [java]     at org.apache.tools.ant.taskdefs.Java.run(Java.java:705)
>     [java]     at
org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:177)
>     [java]     at org.apache.tools.ant.taskdefs.Java.execute(Java.java:83)
>     [java]     at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
>     [java]     at org.apache.tools.ant.Task.perform(Task.java:364)
>     [java]     at org.apache.tools.ant.Target.execute(Target.java:341)
>     [java]     at org.apache.tools.ant.Target.performTasks(Target.java:369)
>     [java]     at
org.apache.tools.ant.Project.executeTarget(Project.java:1214)
>     [java]     at
org.apache.tools.ant.Project.executeTargets(Project.java:1062)
>     [java]     at org.apache.tools.ant.Main.runBuild(Main.java:673)
>     [java]     at org.apache.tools.ant.Main.startAnt(Main.java:188)
>     [java]     at
org.apache.tools.ant.launch.Launcher.run(Launcher.java:196)
>     [java]     at
org.apache.tools.ant.launch.Launcher.main(Launcher.java:55)