about custom tags
i try to add a custom tag by facelets:(down example code from https://facelets.dev.java.net/servlets/ProjectDocumentList?folderID=3635&expandFolder=3635&folderID=0)
JsfCoreLibrary.java:
package com.arcmind.jsfquickstart.tags;
import com.sun.facelets.tag.AbstractTagLibrary;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
/**
* JsfCoreLibrary is an example for IBM developerWorks (c).
* @author Rick Hightower from ArcMind Inc. http://www.arc-mind.com
*/
public final class JsfCoreLibrary extends AbstractTagLibrary {
/** Namespace used to import this library in Facelets pages */
public static final String NAMESPACE = "http://www.arc-mind.com/jsf/core";
/** Current instance of library. */
public static final JsfCoreLibrary INSTANCE = new JsfCoreLibrary();
/**
* Creates a new JstlCoreLibrary object.
*
*/
public JsfCoreLibrary() {
super(NAMESPACE);
this.addTagHandler("setValueBinding", SetValueBindingHandler.class);
this.addTagHandler("isBoolean", IsBooleanHandler.class);
this.addTagHandler("isText", IsTextHandler.class);
this.addTagHandler("isDate", IsDateHandler.class);
try {
Method[] methods = JsfFunctions.class.getMethods();
for (int i = 0; i < methods.length; i++) {
if (Modifier.isStatic(methods.getModifiers())) {
this.addFunction(methods.getName(), methods);
}
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
jsf-core.taglib.xml:
<?xml version="1.0"?>
<!DOCTYPE facelet-taglib PUBLIC
"-//Sun Microsystems, Inc.//DTD Facelet Taglib 1.0//EN"
"facelet-taglib_1_0.dtd">
<facelet-taglib>
<library-class>
com.arcmind.jsfquickstart.tags.JsfCoreLibrary
</library-class>
</facelet-taglib>
i get this result:
Error Loading Library: /WEB-INF/facelets/tags/jsf-core.taglib.xml
java.io.IOException: Error parsing [jndi:/localhost/seam-booking/WEB-INF/facelets/tags/jsf-core.taglib.xml]:
at com.sun.facelets.compiler.TagLibraryConfig.create(TagLibraryConfig.java:396)
at com.sun.facelets.FaceletViewHandler.initializeCompiler(FaceletViewHandler.java:310)
at com.sun.facelets.FaceletViewHandler.initialize(FaceletViewHandler.java:196)
at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:503)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:352)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:30)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.xml.sax.SAXException: Error Handling [jndi:/localhost/seam-booking/WEB-INF/facelets/tags/jsf-core.taglib.xml@10,23] <library-class>
at com.sun.facelets.compiler.TagLibraryConfig$LibraryHandler.endElement(TagLibraryConfig.java:258)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.endNamespaceScope(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at com.sun.facelets.compiler.TagLibraryConfig.create(TagLibraryConfig.java:393)
... 26 more
Caused by: java.lang.Exception: com.arcmind.jsfquickstart.tags.JsfCoreLibrary must be an instance of com.sun.facelets.tag.TagLibrary
at com.sun.facelets.compiler.TagLibraryConfig$LibraryHandler.createClass(TagLibraryConfig.java:280)
at com.sun.facelets.compiler.TagLibraryConfig$LibraryHandler.processLibraryClass(TagLibraryConfig.java:326)
at com.sun.facelets.compiler.TagLibraryConfig$LibraryHandler.endElement(TagLibraryConfig.java:166)
... 41 more
2006-08-24 10:58:10,109 ERROR [STDERR] 2006-8-24 10:58:10 com.sun.facelets.compiler.TagLibraryConfig loadImplicit
thanks!