Examples of com.sun.sgs.service.Service

com.sun.sgs.service.Service
This is the base interface used for all services. Services support specific funcationality and work in a transactional context. See {@code TransactionParticipant} for details on when interactionbetween {@code Service}s is allowed.
On startup of an application, services are constructed (see details below). This provides access to the non-transactional core components of the system as well as the other {@code Service}s that have already been created. {@code Service}s are created in a known order based on dependencies: {@code DataService}, {@code WatchdogService}, {@code NodeMappingService}, {@code TaskService}, {@code ClientSessionService}, and the {@code ChannelManager}, finishing with any custom {@code Service}s ordered based on the application's configuration.
All implementations of {@code Service} must have a constructor withparameters of types {@code Properties}, {@code ComponentRegistry}, and {@code TransactionProxy}. This is how the {@code Service} is createdon startup. The {@code Properties} parameter provides application andservice-specific properties. The {@code ComponentRegistry} providesaccess to non-transactional kernel and system components like the {@code TransactionScheduler}. The {@code TransactionProxy} providesaccess to transactional state (when active) and the other available {@code Service}s. If any error occurs in creating a {@code Service}, the constructor may throw any {@code Exception}, causing the application to shutdown.
Note that {@code Service}s are not created in the context of a transaction. If a given constructor needs to do any work transactionally, it may do so by calling {@code TransactionScheduler.runTask}.

    private void setupServiceNoManager(String className,
                                       StartupKernelContext startupContext) 
        throws Exception
    {
        Class<?> serviceClass = Class.forName(className);
        Service service = createService(serviceClass);
        startupContext.addService(service);
    }

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                              StartupKernelContext startupContext)
        throws Exception
    {
        // get the service class and instance
        Class<?> serviceClass = Class.forName(serviceName);
        Service service = createService(serviceClass);


        // resolve the class and the constructor, checking for constructors
        // by type since they likely take a super-type of Service
        Class<?> managerClass = Class.forName(managerName);
        Constructor<?> [] constructors = managerClass.getConstructors();

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    private void setupServiceNoManager(String className,
                                       StartupKernelContext startupContext) 
        throws Exception
    {
        Class<?> serviceClass = Class.forName(className);
        Service service = createService(serviceClass);
        startupContext.addService(service);
    }

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                              StartupKernelContext startupContext)
        throws Exception
    {
        // get the service class and instance
        Class<?> serviceClass = Class.forName(serviceName);
        Service service = createService(serviceClass);


        // resolve the class and the constructor, checking for constructors
        // by type since they likely take a super-type of Service
        Class<?> managerClass = Class.forName(managerName);
        Constructor<?> [] constructors = managerClass.getConstructors();

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     *
     * @throws Exception if there is any failure during notification
     */
    void notifyReady() throws Exception {
        for (Object service : serviceComponents) {
            Service s = (Service) service;
            s.ready();


            if (logger.isLoggable(Level.CONFIG)) {
                logger.log(Level.CONFIG, "The {0} is ready", s.getName());
            }
        }
    }

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     *
     * @throws Exception if there is any failure during notification
     */
    void notifyReady() throws Exception {
        for (Object service : serviceComponents) {
            Service s = (Service) service;
            s.ready();


            if (logger.isLoggable(Level.CONFIG)) {
                logger.log(Level.CONFIG, "The {0} is ready", s.getName());
            }
        }
    }

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    private void setupServiceNoManager(String className,
                                       StartupKernelContext startupContext) 
        throws Exception
    {
        Class<?> serviceClass = Class.forName(className);
        Service service = createService(serviceClass);
        startupContext.addService(service);
    }

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                              StartupKernelContext startupContext)
        throws Exception
    {
        // get the service class and instance
        Class<?> serviceClass = Class.forName(serviceName);
        Service service = createService(serviceClass);


        // resolve the class and the constructor, checking for constructors
        // by type since they likely take a super-type of Service
        Class<?> managerClass = Class.forName(managerName);
        Constructor<?> [] constructors = managerClass.getConstructors();

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    private void setupServiceNoManager(String className,
                                       StartupKernelContext startupContext) 
        throws Exception
    {
        Class<?> serviceClass = Class.forName(className);
        Service service = createService(serviceClass);
        startupContext.addService(service);
    }

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                              StartupKernelContext startupContext)
        throws Exception
    {
        // get the service class and instance
        Class<?> serviceClass = Class.forName(serviceName);
        Service service = createService(serviceClass);


        // resolve the class and the constructor, checking for constructors
        // by type since they likely take a super-type of Service
        Class<?> managerClass = Class.forName(managerName);
        Constructor<?> [] constructors = managerClass.getConstructors();

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Related Classes of com.sun.sgs.service.Service

com.sun.sgs.impl.kernel.Kernel

com.sun.sgs.impl.kernel.KernelContext

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