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Micro Distribution of the Payara Project for IBM JDK
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package com.sun.enterprise.container.common.spi.util;
import com.sun.enterprise.deployment.JndiNameEnvironment;
import org.jvnet.hk2.annotations.Contract;
/**
* InjectionManager provides runtime resource injection(@Resource, @EJB, etc.)
* and generic callback(PostConstruct/PreDestroy) services It performs
* the actual injection into the fields and methods of designated
* J2EE 5 component instances and managed class instances. The decision
* as to when injection takes place is determined by the caller.
*
* @author Kenneth Saks
*/
@Contract
public interface InjectionManager {
/**
* Inject the given object instance with the resources from its
* component environment. The applicable component naming environment
* information will be retrieved from the current invocation context.
*
* Any @PostConstruct methods on the instance's class(and super-classes)
* will be invoked after injection.
*
* @exception InjectionException Thrown if an error occurs during injection
*
*/
public void injectInstance(Object instance)
throws InjectionException;
/**
* Inject the given object instance with the resources from its
* component environment. The applicable component naming environment
* information will be retrieved from the current invocation context.
*
* If invokePostConstruct is true, any @PostConstruct methods on the
* instance's class(and super-classes) will be invoked after injection.
*
* @exception InjectionException Thrown if an error occurs during injection
*
*/
public void injectInstance(Object instance, boolean invokePostConstruct)
throws InjectionException;
/**
* Inject the injectable resources from the given component environment
* into an object instance. The specified componentEnv must match the
* environment that is associated with the component on top of the
* invocation stack at the time this method is invoked.
*
* Any @PostConstruct methods on the instance's class(and super-classes)
* will be invoked after injection.
*
*
* @exception InjectionException Thrown if an error occurs during injection
*
*/
public void injectInstance(Object instance,
JndiNameEnvironment componentEnv)
throws InjectionException;
/**
* Inject the injectable resources from the given component environment
* into an object instance. The specified componentEnv must match the
* environment that is associated with the component on top of the
* invocation stack at the time this method is invoked.
*
* @param invokePostConstruct if true, invoke any @PostConstruct methods
* on the instance's class(and super-classes) after injection.
*
* @exception InjectionException Thrown if an error occurs during injection
*
*/
public void injectInstance(Object instance,
JndiNameEnvironment componentEnv,
boolean invokePostConstruct)
throws InjectionException;
/**
* Inject the injectable resources for the given component id
* into an object instance.
*
* @param invokePostConstruct if true, invoke any @PostConstruct methods
* on the instance's class(and super-classes) after injection.
*
* @exception InjectionException Thrown if an error occurs during injection
*
*/
public void injectInstance(Object instance,
String componentId,
boolean invokePostConstruct)
throws InjectionException;
/**
* Inject the injectable resources from the given component id
* into a Class instance. Only class-level(static) fields/methods are
* supported. E.g., this injection operation would be used for the
* Application Client Container main class.
*
* @param invokePostConstruct if true, invoke any @PostConstruct methods
* on the class(and super-classes) after injection.
* @exception InjectionException Thrown if an error occurs during injection
*
*/
public void injectClass(Class clazz,
String componentId,
boolean invokePostConstruct)
throws InjectionException;
/**
* Inject the injectable resources from the given component environment
* into a Class instance. Only class-level(static) fields/methods are
* supported. E.g., this injection operation would be used for the
* Application Client Container main class.
*
* Any @PostConstruct methods on the class(and super-classes)
* will be invoked after injection.
*
* @exception InjectionException Thrown if an error occurs during injection
*/
public void injectClass(Class clazz,
JndiNameEnvironment componentEnv)
throws InjectionException;
/**
* Inject the injectable resources from the given component environment
* into a Class instance. Only class-level(static) fields/methods are
* supported. E.g., this injection operation would be used for the
* Application Client Container main class.
*
* @param invokePostConstruct if true, invoke any @PostConstruct methods
* on the class(and super-classes) after injection.
*
* @exception InjectionException Thrown if an error occurs during injection
*/
public void injectClass(Class clazz,
JndiNameEnvironment componentEnv,
boolean invokePostConstruct)
throws InjectionException;
/**
*
* Invoke any @PreDestroy methods defined on the instance's class
* (and super-classes). Invocation information will be retrieved from
* the current component invocation context.
*
* @exception InjectionException Thrown if an error occurs
*
*/
public void invokeInstancePreDestroy(Object instance)
throws InjectionException;
/**
*
* Invoke any @PreDestroy methods defined on the instance's class
* (and super-classes). Invocation information will be retrieved from
* the current component invocation context.
*
* @param validate if false, do nothing if the instance is not registered
*
* @exception InjectionException Thrown if an error occurs
*
*/
public void invokeInstancePreDestroy(Object instance, boolean validate)
throws InjectionException;
/**
*
* Invoke any @PreDestroy methods defined on the instance's class
* (and super-classes). The specified componentEnv must match the
* environment that is associated with the component on top of the
* invocation stack at the time this method is invoked.
*
* @exception InjectionException Thrown if an error occurs
*
*/
public void invokeInstancePreDestroy(Object instance,
JndiNameEnvironment componentEnv)
throws InjectionException;
/**
*
* Invoke any @PostConstruct methods defined on the instance's class
* (and super-classes). The specified componentEnv must match the
* environment that is associated with the component on top of the
* invocation stack at the time this method is invoked.
*
* @exception InjectionException Thrown if an error occurs
*
*/
public void invokeInstancePostConstruct(Object instance,
JndiNameEnvironment componentEnv)
throws InjectionException;
/**
*
* Invoke any static @PreDestroy methods defined on the class
* (and super-classes). The specified componentEnv must match the
* environment that is associated with the component on top of the
* invocation stack at the time this method is invoked.
*
* @exception InjectionException Thrown if an error occurs
*
*/
public void invokeClassPreDestroy(Class clazz,
JndiNameEnvironment componentEnv)
throws InjectionException;
/**
* Create a managed object for the given class. The object will be
* injected and any PostConstruct methods will be called. The returned
* object can be cast to the clazz type but is not necessarily a direct
* reference to the managed instance. All invocations on the returned
* object should be on its public methods.
*
* It is the responsibility of the caller to destroy the returned object
* by calling destroyManagedObject(Object managedObject).
*
* @param clazz Class to be instantiated
* @return managed object
* @throws InjectionException
*/
public T createManagedObject(Class clazz)
throws InjectionException;
/**
* Create a managed object for the given class. The object will be
* injected and if invokePostConstruct is true, any @PostConstruct
* methods on the instance's class(and super-classes) will be invoked
* after injection. The returned
* object can be cast to the clazz type but is not necessarily a direct
* reference to the managed instance. All invocations on the returned
* object should be on its public methods.
*
* It is the responsibility of the caller to destroy the returned object
* by calling destroyManagedObject(Object managedObject).
*
* @param clazz Class to be instantiated
* @param invokePostConstruct if true, invoke any @PostConstruct methods
* on the instance's class(and super-classes) after injection.
* @return managed object
* @throws InjectionException
*/
public T createManagedObject(Class clazz, boolean invokePostConstruct)
throws InjectionException;
/**
* Destroy a managed object that was created via createManagedObject. Any
* PreDestroy methods will be called.
*
* @param managedObject
* @throws InjectionException
*/
public void destroyManagedObject(Object managedObject)
throws InjectionException;
/**
* Destroy a managed object that may have been created via createManagedObject. Any
* PreDestroy methods will be called.
*
* @param managedObject
* @param validate if false the object might not been created by createManagedObject() call
* @throws InjectionException
*/
public void destroyManagedObject(Object managedObject, boolean validate)
throws InjectionException;
/**
* Perform injection.
* @param clazz The class of the instance to perform injection. This is needed b/c of static injection.
* @param instance The instance on which to perform injection.
* @param envDescriptor The descriptor containing the injection information.
* @param componentId The id of the component in whose jndi environment injection actually occurs. Null indicates
* the current jndi environment.
* @param invokePostConstruct if true, invoke any @PostConstruct methods
* @throws InjectionException
*/
public void inject(final Class clazz,
final Object instance,
JndiNameEnvironment envDescriptor,
String componentId,
boolean invokePostConstruct)
throws InjectionException;
}
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