 | | | NullPointerException when calling getLexicalFacetValue() on XSSimpleTypeDefiniti | NullPointerException when calling getLexicalFacetValue() on XSSimpleTypeDefiniti 2003-07-29 - By Martin Lambert
Hi,
Thanks everybody for your help with my previous questions.
I am currently attempting to retrieve information from attribute types, in
particular their facets. I am aware of the type heirachy i.e. anySimpleType -->
decimal --> integer and have been able to retrieve the individual type objects.
I make the assumption that facets are solely attached to the type in which they
are defined. E.g. given the type definition below, maxInclusive=0 would be
attached to the 'negIntegerType' object and not any of the ancestor type
objects.
<simpleType name="negIntegerType">
<restriction base="integer">
<maxInclusive value="0"/>
</restriction>
</simpleType>
<attribute name="elMin" type="negIntegerType" use="required"/>
My problem comes when tyring to call getLexicalFacetValue() using facets that
are not associated with the given type. To illustrate I will use the example
above, I would expect calling getLexicalFacetValue(FACET_MAXINCLUSIVE) on a
'decimal' type object to return null as stated in the Javadoc but instead it
throws a null pointer exception.
Below is the code I'm using and the stack trace that I get:
System.out.println("::::::::::::: TYPE NAME: " + typeDef.getName());
// Make sure that the value can be turned into a decimal.
Double.parseDouble(attributeValue.toString());
System.out.println("^^^^ TODO: Add validation logic");
String maxInclusive = typeDef.getLexicalFacetValue
(XSSimpleTypeDefinition.FACET_MAXINCLUSIVE);
if(maxInclusive != null)
{
System.out.println("Max. inclusive facet found!!!");
}
else
{
System.out.println("Max. inclusive facet NOT found!!!");
}
java.lang.NullPointerException
at org.apache.xerces.impl.dv.xs.XSSimpleTypeDecl.getLexicalFacetValue(Unknown
Source)
at com.novobase.skelgen.webservice.DecimalAttributeContentValidator.validate
(DecimalAttributeContentValidator.java:41)
at com.novobase.skelgen.webservice.SiteBuilder.validateJAXBObjectAttribute
(SiteBuilder.java:972)
at com.novobase.skelgen.webservice.SiteBuilder.validateJAXBObjectAttributes
(SiteBuilder.java:1019)
at com.novobase.skelgen.webservice.SiteBuilder.validateJAXBObject(SiteBuilder
.java:1041)
at com.novobase.skelgen.webservice.SiteBuilder.validateSite(SiteBuilder.java
:770)
at org.apache.jsp.siteFileBuilder_jsp._jspService(siteFileBuilder_jsp.java:506)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java
:204)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve
.java:260)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext
.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve
.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext
.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext
.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve
.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext
.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext
.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve
.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext
.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:432)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler
.processConnection(Http11Protocol.java:386)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:534)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool
.java:530)
at java.lang.Thread.run(Thread.java:536)
Thanks,
Martin.
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