Java Activatable.unexportObject方法代码示例

import java.rmi.activation.Activatable; //导入方法依赖的package包/类
/**
* The group's <code>inactiveObject</code> method is called
* indirectly via a call to the <code>Activatable.inactive</code>
* method. A remote object implementation must call
* <code>Activatable</code>'s <code>inactive</code> method when
* that object deactivates (the object deems that it is no longer
* active). If the object does not call
* <code>Activatable.inactive</code> when it deactivates, the
* object will never be garbage collected since the group keeps
* strong references to the objects it creates. <p>
*
* The group's <code>inactiveObject</code> method
* unexports the remote object from the RMI runtime so that the
* object can no longer receive incoming RMI calls. This call will
* only succeed if the object has no pending/executing calls. If
* the object does have pending/executing RMI calls, then false
* will be returned.
*
* If the object has no pending/executing calls, the object is
* removed from the RMI runtime and the group informs its
* <code>ActivationMonitor</code> (via the monitor's
* <code>inactiveObject</code> method) that the remote object is
* not currently active so that the remote object will be
* re-activated by the activator upon a subsequent activation
* request.
*
* @param id the object's activation identifier
* @returns true if the operation succeeds (the operation will
* succeed if the object in currently known to be active and is
* either already unexported or is currently exported and has no
* pending/executing calls); false is returned if the object has
* pending/executing calls in which case it cannot be deactivated
* @exception UnknownObjectException if object is unknown (may already
* be inactive)
* @exception RemoteException if call informing monitor fails
*/
public boolean inactiveObject(ActivationID id)
    throws ActivationException, UnknownObjectException, RemoteException
{

    try {
        acquireLock(id);
        synchronized (this) {
            if (groupInactive == true)
                throw new ActivationException("group is inactive");
        }

        ActiveEntry entry = active.get(id);
        if (entry == null) {
            // REMIND: should this be silent?
            throw new UnknownObjectException("object not active");
        }

        try {
            if (Activatable.unexportObject(entry.impl, false) == false)
                return false;
        } catch (NoSuchObjectException allowUnexportedObjects) {
        }

        try {
            super.inactiveObject(id);
        } catch (UnknownObjectException allowUnregisteredObjects) {
        }

        active.remove(id);

    } finally {
        releaseLock(id);
        checkInactiveGroup();
    }

    return true;
}
 

import java.rmi.activation.Activatable; //导入方法依赖的package包/类
/**
* The group's <code>inactiveObject</code> method is called
* indirectly via a call to the <code>Activatable.inactive</code>
* method. A remote object implementation must call
* <code>Activatable</code>'s <code>inactive</code> method when
* that object deactivates (the object deems that it is no longer
* active). If the object does not call
* <code>Activatable.inactive</code> when it deactivates, the
* object will never be garbage collected since the group keeps
* strong references to the objects it creates. <p>
*
* The group's <code>inactiveObject</code> method
* unexports the remote object from the RMI runtime so that the
* object can no longer receive incoming RMI calls. This call will
* only succeed if the object has no pending/executing calls. If
* the object does have pending/executing RMI calls, then false
* will be returned.
*
* If the object has no pending/executing calls, the object is
* removed from the RMI runtime and the group informs its
* <code>ActivationMonitor</code> (via the monitor's
* <code>inactiveObject</code> method) that the remote object is
* not currently active so that the remote object will be
* re-activated by the activator upon a subsequent activation
* request.
*
* @param id the object's activation identifier
* @return true if the operation succeeds (the operation will
* succeed if the object in currently known to be active and is
* either already unexported or is currently exported and has no
* pending/executing calls); false is returned if the object has
* pending/executing calls in which case it cannot be deactivated
* @exception UnknownObjectException if object is unknown (may already
* be inactive)
* @exception RemoteException if call informing monitor fails
*/
public boolean inactiveObject(ActivationID id)
    throws ActivationException, UnknownObjectException, RemoteException
{

    try {
        acquireLock(id);
        synchronized (this) {
            if (groupInactive == true)
                throw new ActivationException("group is inactive");
        }

        ActiveEntry entry = active.get(id);
        if (entry == null) {
            // REMIND: should this be silent?
            throw new UnknownObjectException("object not active");
        }

        try {
            if (Activatable.unexportObject(entry.impl, false) == false)
                return false;
        } catch (NoSuchObjectException allowUnexportedObjects) {
        }

        try {
            super.inactiveObject(id);
        } catch (UnknownObjectException allowUnregisteredObjects) {
        }

        active.remove(id);

    } finally {
        releaseLock(id);
        checkInactiveGroup();
    }

    return true;
}
 

import java.rmi.activation.Activatable; //导入方法依赖的package包/类
public boolean inactiveObject(ActivationID id) throws ActivationException,
        UnknownObjectException, RemoteException {
    ActiveObject ao = (ActiveObject) active_objects.get(id);
    if (ao == null) {
        // rmi.93=Object was not registered or already deactivated.
        throw new UnknownObjectException(Messages.getString("rmi.93")); //$NON-NLS-1$
    }

    Activatable.unexportObject(ao.getImpl(), false);
    super.inactiveObject(id);
    active_objects.remove(id);
    return true;
}