Examples of de.danet.an.workflow.spis.ras.ResourceAssignmentService

de.danet.an.workflow.spis.ras.ResourceAssignmentService
This interface defines the resource assignment facility used by the workflow component. A central design issue for this interface is the identification of activites.
The {@link de.danet.an.workflow.omgcore.WfActivity#key "key" method} of WfActivity is bydefinition only unique within the scope of the containing process and can thus not easily be used to identify a single activity in a workflow engine. Even worse, a resource assignment service might be used by more than one workflow engine.
At this interface, an activity is therefore identified using an ActivityFinder and an identifier that is unique with respect to the ActivityFinder. The ActivityFinder provides both a namespace to allow different consumers to request resources and a means for the assignment facility to map the identifier back to an actual WfActivity object. See the description of {@link ActivityFinder ActivityFinder} for more details.
From the workflow engine's point of view, the resource assignment service is the only source of objects of type WfResource and WfAssignment. Implementations of resource assignment services may be (but need not be) based on a resource management service as defined in package {@link de.danet.an.workflow.spis.rms de.danet.an.workflow.spis.rms}.

     */
    protected RASInvocationHandler rasInvocationHandler() {
  if (rasCache == null) {
      WorkflowEngine engine = null;
      try {
    ResourceAssignmentService ras 
                    = engineLocal().resourceAssignmentService ();
                if (ras == null) {
                    return null;
                }
                rasCache = new DefaultRASInvocationHandler (ras);

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     * @ejb.transaction type="Supports"
     */
    public ResourceAssignmentService resourceAssignmentService () {
        RequestScope scope = RequestLog.enterScope
            (this, "resourceAssignmentService", new Object[] {});
        ResourceAssignmentService res = null;
        try {
            res = getRas ();
        } catch (RemoteException e) {
            throw new EJBException (e);
        } finally {

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  throws RemoteException {
        RequestScope scope = RequestLog.enterScope
            (this, "knownResources", new Object[] {});
        Collection res = null;
        try {
            ResourceAssignmentService ras = getRas();
            if (ras == null) {
                throw new UnsupportedOperationException 
                    ("No resource assignment service configured.");
            }
            res = ras.knownResources ();
        } finally {
            scope.leave (res);
        }
        return res;
    }

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  throws InvalidKeyException, RemoteException {
        RequestScope scope = RequestLog.enterScope
            (this, "resourceByKey", new Object[] {});
        WfResource res = null;
        try {
            ResourceAssignmentService ras = getRas();
            if (ras == null) {
                throw new UnsupportedOperationException 
                    ("No resource assignment service configured.");
            }
            res = ras.resourceByKey(key);
        } finally {
            scope.leave (res);
        }
        return res;
    }

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  throws RemoteException {
        RequestScope scope = RequestLog.enterScope
            (this, "authorizers", new Object[] { resource });
        Collection res = null;
        try {
            ResourceAssignmentService ras = getRas();
            if (ras == null) {
                throw new UnsupportedOperationException 
                    ("No resource assignment service configured.");
            }
            res = ras.authorizers(resource);
        } finally {
            scope.leave (res);
        }
        return res;
    }

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  throws RemoteException, InvalidKeyException {
        RequestScope scope = RequestLog.enterScope
            (this, "asResource", new Object[] { principal });
        WfResource res = null;
        try {
            ResourceAssignmentService ras = getRas();
            if (ras == null) {
                throw new UnsupportedOperationException 
                    ("No resource assignment service configured.");
            }
            res = ras.asResource(principal);
        } finally {
            scope.leave (res);
        }
        return res;
    }

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Related Classes of de.danet.an.workflow.spis.ras.ResourceAssignmentService

de.danet.an.workflow.ejbs.admin.WorkflowEngineEJB

de.danet.an.workflow.ejbs.core.WfActivityEJB

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