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InitHandler.javaAPI DocGlassfish v2 API7511Fri May 04 22:31:34 BST 2007com.sun.enterprise.deployment.annotation.handlers

InitHandler

public class InitHandler extends AbstractAttributeHandler
This handler is responsible for handling the javax.ejb.Init attribute

Fields Summary
Constructors Summary
public InitHandler()
Methods Summary
private voidaddInitMethod(com.sun.enterprise.deployment.EjbSessionDescriptor descriptor, java.lang.reflect.Method beanMethod, java.lang.String adaptedCreateMethodName, boolean local)


        String homeIntfName = local ? descriptor.getLocalHomeClassName() :
            descriptor.getHomeClassName();            

        ClassLoader cl = descriptor.getEjbBundleDescriptor().getClassLoader();

        Class homeIntf = cl.loadClass(homeIntfName);
        
        Method createMethod = null;
        if( (adaptedCreateMethodName == null) || 
            (adaptedCreateMethodName.equals("")) ) {
            // Can't make any assumptions about matching method name.  Could
            // be "create" or some form of create<METHOD>, so match based on
            // signature.
            for(Method next : homeIntf.getMethods()) {
                if( next.getName().startsWith("create") &&
                    TypeUtil.sameParamTypes(next, beanMethod) ) {
                    createMethod = next;
                    break;
                }
            }
            if( createMethod == null ) {
                throw new NoSuchMethodException("No matching adapted home " +
                                                "method found for @Init " +
                                                " method " + beanMethod);
            }
        } else {
            createMethod = homeIntf.getMethod(adaptedCreateMethodName, 
                                              beanMethod.getParameterTypes());
        }
        
        MethodDescriptor beanMethodDescriptor =
            new MethodDescriptor(beanMethod, MethodDescriptor.EJB_BEAN);
        
        MethodDescriptor createMethodDescriptor = 
            new MethodDescriptor(createMethod, 
                                 ( local ?
                                   MethodDescriptor.EJB_HOME :
                                   MethodDescriptor.EJB_LOCALHOME ));
        
        EjbInitInfo initInfo = new EjbInitInfo();
                    
        initInfo.setBeanMethod(beanMethodDescriptor);
        initInfo.setCreateMethod(createMethodDescriptor);

        descriptor.addInitMethod(initInfo);
public java.lang.ClassgetAnnotationType()

return
the annoation type this annotation handler is handling

        return Init.class;
public java.lang.Class[]getTypeDependencies()

return
an array of annotation types this annotation handler would require to be processed (if present) before it processes it's own annotation type.

        return getEjbAnnotationTypes();
protected com.sun.enterprise.deployment.annotation.HandlerProcessingResultprocessAnnotation(com.sun.enterprise.deployment.annotation.AnnotationInfo ainfo, com.sun.enterprise.deployment.annotation.context.EjbContext[] ejbContexts)


        Init init = (Init) ainfo.getAnnotation();

        for(EjbContext next : ejbContexts) {
            
            EjbSessionDescriptor sessionDescriptor = 
                (EjbSessionDescriptor) next.getDescriptor();

            Method m = (Method) ainfo.getAnnotatedElement();

            // Check for matching method on home and/or local home interface.

            int numMatches = 0;

            
            String adaptedCreateMethodName = init.value();

            try {
                if( sessionDescriptor.isRemoteInterfacesSupported() ) {
                    addInitMethod(sessionDescriptor, m, 
                                  adaptedCreateMethodName, false);
                    numMatches++;
                }
            } catch(Exception e) {
            }                   

            try {                
                if( sessionDescriptor.isLocalInterfacesSupported() ) {
                    addInitMethod(sessionDescriptor, m, 
                                  adaptedCreateMethodName, true);
                    numMatches++;
                }
            } catch(Exception e) {                
            }

            if( numMatches == 0 ) {
                log(Level.SEVERE, ainfo, 
                    localStrings.getLocalString(
                    "enterprise.deployment.annotation.handlers.notmatchcreate",
                    "Unable to find matching Home create method for Init method {0} on bean {1}.",
                    new Object[] { m, sessionDescriptor.getName() }));
                return getDefaultFailedResult();
            }
        }

        return getDefaultProcessedResult();