org.apache.hivemind.impl.servicemodel
Class PooledServiceModel

java.lang.Object
  org.apache.hivemind.impl.servicemodel.AbstractServiceModelImpl
      org.apache.hivemind.impl.servicemodel.PooledServiceModel

All Implemented Interfaces:

ServiceModel

public class PooledServiceModel
extends AbstractServiceModelImpl

Similar to the threaded service model, except that, once created, services are pooled for later use.

Author:

Howard Lewis Ship

Field Summary

protected static java.lang.String

SERVICE_ACCESSOR_METHOD_NAME Name of a method in the deferred proxy that is used to obtain the constructed service.

Fields inherited from class org.apache.hivemind.impl.servicemodel.AbstractServiceModelImpl

_log

Fields inherited from interface org.apache.hivemind.internal.ServiceModel

POOLED, PRIMITIVE, SINGLETON, THREADED

Constructor Summary

PooledServiceModel(ConstructableServicePoint servicePoint)

Method Summary

java.lang.Object	getService() Invoked by the service extension point to obtain the service implementation.
java.lang.Object	getServiceImplementationForCurrentThread()
void	instantiateService() Invokes getServiceImplementationForCurrentThread() to instantiate an instance of the service.

Methods inherited from class org.apache.hivemind.impl.servicemodel.AbstractServiceModelImpl

addInterceptors, constructBridgeProxy, constructCoreServiceImplementation, constructNewServiceImplementation, constructServiceImplementation, getServicePoint, registerWithShutdownCoordinator

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SERVICE_ACCESSOR_METHOD_NAME

protected static final java.lang.String SERVICE_ACCESSOR_METHOD_NAME

Name of a method in the deferred proxy that is used to obtain the constructed service.

See Also:

Constant Field Values

Constructor Detail

PooledServiceModel

public PooledServiceModel(ConstructableServicePoint servicePoint)

Method Detail

getService

public java.lang.Object getService()

Description copied from interface: ServiceModel

Invoked by the service extension point to obtain the service implementation. The model may return the actual service implementation or some form of proxy.

This method is only invoked once; the returned value is used from that point on (in all threads, by all callers). Most models return a proxy that takes care of realizing the service (actually creating the service, configuring it, and wrapping it with interceptors) only when needed.

getServiceImplementationForCurrentThread

public java.lang.Object getServiceImplementationForCurrentThread()

instantiateService

public void instantiateService()

Invokes getServiceImplementationForCurrentThread() to instantiate an instance of the service.