/*

  * Copyright 2005-2007 The Kuali Foundation

  * 

  * Licensed under the Educational Community License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  * 

  * http://www.opensource.org/licenses/ecl2.php

  * 

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.kuali.rice.krad.document;

 import org.kuali.rice.kew.dto.ActionTakenEventDTO;

 import org.kuali.rice.kew.dto.DocumentRouteLevelChangeDTO;

 import org.kuali.rice.kew.dto.DocumentRouteStatusChangeDTO;

 import org.kuali.rice.kim.bo.Person;

 import org.kuali.rice.krad.bo.AdHocRoutePerson;

 import org.kuali.rice.krad.bo.AdHocRouteWorkgroup;

 import org.kuali.rice.krad.bo.DocumentHeader;

 import org.kuali.rice.krad.bo.Note;

 import org.kuali.rice.krad.bo.PersistableBusinessObject;

 import org.kuali.rice.krad.document.authorization.PessimisticLock;

 import org.kuali.rice.krad.exception.ValidationException;

 import org.kuali.rice.krad.rule.event.KualiDocumentEvent;

 import org.kuali.rice.krad.service.DocumentSerializerService;

 import org.kuali.rice.krad.util.NoteType;

 import org.kuali.rice.krad.util.documentserializer.PropertySerializabilityEvaluator;

 import org.kuali.rice.krad.workflow.KualiDocumentXmlMaterializer;

 import java.util.List;

 import java.util.Map;

 /**

  * This is the Document interface. All entities that are regarded as "eDocs" in the system, including Maintenance documents and

  * Transaction Processing documents should implement this interface as it defines methods that are necessary to interact with the

  * underlying frameworks and components (i.e. notes, attachments, workflow, etc).

  */

 public interface Document extends PersistableBusinessObject {

     /**

      * This retrieves the standard <code>DocumentHeader</code> object, which contains standard meta-data about a document.

      * 

      * @return document header since all docs will have a document header

      */

     public DocumentHeader getDocumentHeader();

     /**

      * Sets the associated <code>DocumentHeader</code> for this document.

      * 

      * @param documentHeader

      */

     public void setDocumentHeader(DocumentHeader documentHeader);

     /**

      * All documents have a document header id. This is the quick accessor to that unique identifier and should return the same

      * value as documentHeader.getDocumentHeaderId().

      * 

      * @return doc header id

      */

     public String getDocumentNumber();

     /**

      * setter for document header id

      * 

      * @param documentHeaderId

      */

     public void setDocumentNumber(String documentHeaderId);

     /**

      * This is the method to integrate with workflow, where we will actually populate the workflow defined data structure(s) so that

      * workflow can routed based on this data. This method is responsible for passing over the proper Kuali (client system) data

      * that will be used by workflow to determine how the document is actually routed.

      */

     public void populateDocumentForRouting();

     /**

      * This is a method where we can get the xml of a document that the workflow system will use to base it's routing and search

      * attributes on.

      * 

      * @return the document serialized to an xml string

      */

     public String serializeDocumentToXml();

     /**

      * This method is used to get the xml that should be used in a Route Report.  In it's default implementation this will call the

      * methods prepareForSave() and populateDocumentForRouting().

      */

     public String getXmlForRouteReport();

     /**

      * method to integrate with workflow, where we will actually handle the transitions of levels for documents

      */

     public void doRouteLevelChange(DocumentRouteLevelChangeDTO levelChangeEvent);

     /**

      * method to integrate with workflow where we will be able to perform logic for an action taken being performed on a document

      */

     public void doActionTaken(ActionTakenEventDTO event);

     /**

      * This method will be called after the Workflow engine has completely finished processing a document.

      * 

      * @param successfullyProcessed - true if the document was processed successfully, false otherwise

      */

     public void afterWorkflowEngineProcess(boolean successfullyProcessed);

     /**

      * This method will be called before the Workflow engine has begun processing a document.

      */

     public void beforeWorkflowEngineProcess();

     /**

      * This method will be called before the Workflow engine has begun processing a document.

      */

     public List<Long> getWorkflowEngineDocumentIdsToLock();

     /**

      * Getter method to get the document title as it will appear in and be searchable in workflow.

      */

     public String getDocumentTitle();

     /**

      * getter method to get the list of ad hoc route persons associated with a document at a point in time, this list is only valid

      * for a given users version of a document as this state is only persisted in workflow itself when someone takes an action on a

      * document

      */

     public List<AdHocRoutePerson> getAdHocRoutePersons();

     /**

      * getter method to get the list of ad hoc route workgroups associated with a document at a point in time, this list is only

      * valid for a given users version of a document as this state is only persisted in workflow itself when someone takes an action

      * on a document

      */

     public List<AdHocRouteWorkgroup> getAdHocRouteWorkgroups();

     /**

      * setter method to set the list of ad hoc route persons associated with a document at a point in time, this list is only valid

      * for a given users version of a document as this state is only persisted in workflow itself when someone takes an action on a

      * document

      * 

      * @param adHocRoutePersons

      */

     public void setAdHocRoutePersons(List<AdHocRoutePerson> adHocRoutePersons);

     /**

      * setter method to set the list of ad hoc route workgroups associated with a document at a point in time, this list is only

      * valid for a given users version of a document as this state is only persisted in workflow itself when someone takes an action

      * on a document

      * 

      * @param adHocRouteWorkgroups

      */

     public void setAdHocRouteWorkgroups(List<AdHocRouteWorkgroup> adHocRouteWorkgroups);

     /**

      * This method provides a hook that will be called before the document is saved. This method is useful for applying document

      * level data to children. For example, if someone changes data at the document level, and that data needs to be propagated to

      * child objects or child lists of objects, you can use this method to update the child object or iterate through the list of

      * child objects and apply the document level data to them. Any document that follows this paradigm will need to make use of

      * this method to apply all of those changes.

      */

     public void prepareForSave();

     /**

      * Sends document off to the rules engine to verify business rules.

      * 

      * @param document - document to validate

      * @param event - indicates which document event was requested

      * @throws ValidationException - containing the MessageMap from the validation session.

      */

     public void validateBusinessRules(KualiDocumentEvent event);

     /**

      * Do any work on the document that requires the KualiDocumentEvent before the save.

      * 

      * @param event - indicates which document event was requested

      */

     public void prepareForSave(KualiDocumentEvent event);

     /**

      * Do any work on the document after the save.

      * 

      * @param event - indicates which document event was requested

      */

     public void postProcessSave(KualiDocumentEvent event);

     /**

      * This method provides a hook that will be called after a document is retrieved, but before it is returned from the

      * DocumentService.

      */

     public void processAfterRetrieve();

     /**

      * This method returns whether or not this document can be copied.

      * 

      * @return True if it can be copied, false if not.

      */

     public boolean getAllowsCopy();

     /**

      * Generate any necessary events required during the save event generation

      * 

      * @return a list of document events that were triggered by the save event

      */

     public List<KualiDocumentEvent> generateSaveEvents();

    /**

      * Handle the doRouteStatusChange event from the post processor

      * 

      */

     public void doRouteStatusChange(DocumentRouteStatusChangeDTO statusChangeEvent);

     /**

      * Returns the note type which should be used for notes associated with this document.

      * This method should never return null.

      * 

      * @return the note type supported by this document, this value should never be null

      */

     public NoteType getNoteType();

     /**

      * Return the target PersistableBusinessObject that notes associated with this document should be attached to.

      * In general, this method should never return null.  However, it is permissible that it will return a 

      * business object which has not been persisted yet (and therefore does not have it's unique object id

      * established).  This is only valid in cases where the note type is {@link NoteType#BUSINESS_OBJECT}.

      * 

      * In these cases it's the responsibility for implementers of the Document interface to handle storing transient

      * copies of the document notes (in XML or otherwise) until the underlying note target has been persisted and can be attached

      * to the document's notes via it's object id.

      * 

      * @return the PersistableBusinessObject with which notes on this document should be associated

      */

     public PersistableBusinessObject getNoteTarget();

     /**

      * Adds the given Note to the document's list of Notes.

      * 

      * @param note the Note to add, must be non-null

      */

     public void addNote(Note note);

     /**

      * Returns a mutable list of all notes on the document.

      * 

      * @return the list of notes associated with this document, if this document has no notes then an empty list will be returned

      */

     public List<Note> getNotes();

     /**

          * Sets the document's list of notes to the given list.

          * 

          * @param notes the list of notes to set on the document, must be non-null

          */

         public void setNotes(List<Note> notes);

     /**

      * Retrieves the note at the given index.

      * 

      * @param index the zero-based index of the note to retrieve

      * @return the note located at the given index

      * @throws IndexOutOfBoundsException if the index is out of range

      */

     public Note getNote(int index);

     /**

      * Removes the given note from the document's list of notes.

      * 

      * @param note the note to remove from the document's list of notes, must be non-null

      * @return true if the note was successfully removed, false if the list did not contain the given note

      */

     public boolean removeNote(Note note);

     /**

      * This method gets a list of the {@link PessimisticLock} objects associated with this document

      * 

      */

     public List<PessimisticLock> getPessimisticLocks();

     /**

      * This method updates the list of {@link PessimisticLock} objects on the document if changes could

      * have been made

      */

     public void refreshPessimisticLocks();

     /**

      * This method adds a new {@link PessimisticLock} to the document

      * 

      * NOTE: LOCKS ADDED VIA THIS METHOD WILL NOT BE SAVED WITH THE DOCUMENT

      * 

      * @param lock - the lock to add to the document

      */

     public void addPessimisticLock(PessimisticLock lock);

     /**

      * This is a method that is used by Kuali Pessimistic Locking to get the names (method to call values)

      * of the {@link KualiDocumentActionBase} methods that should release locks

      * 

      * @return the list of method names of an action that should clear locks for the current user

      */

     public List<String> getLockClearningMethodNames();

     /**

      * Returns an evaluator object that determines whether a given property relative to the root object ({@link #wrapDocumentWithMetadataForXmlSerialization()}

      * is serializable during the document serialization process.

      * 

      * @return a fully initialized evaluator object, ready to be used for workflow routing

      * 

      * @see DocumentSerializerService

      * @see #wrapDocumentWithMetadataForXmlSerialization()

      */

     public String getBasePathToDocumentDuringSerialization();

     /**

      * Returns an evaluator object that determines whether a given property relative to the root object ({@link #wrapDocumentWithMetadataForXmlSerialization()}

      * is serializable during the document serialization process.

      * 

      * @return a fully initialized evaluator object, ready to be used for workflow routing

      * 

      * @see DocumentSerializerService

      * @see #wrapDocumentWithMetadataForXmlSerialization()

      */

     public PropertySerializabilityEvaluator getDocumentPropertySerizabilityEvaluator();

     /**

      * This method will return the root object to be serialized for workflow routing.  If necessary, this method will wrap this document object with a wrapper (i.e. contains a reference back to this document).  This

      * wrapper may also contain references to additional objects that provide metadata useful to the workflow engine.

      * 

      * If no wrappers are necessary, then this object may return "this"

      * 

      * @return a wrapper object (most likely containing a reference to "this"), or "this" itself.

      * @see KualiDocumentXmlMaterializer

      */

     public Object wrapDocumentWithMetadataForXmlSerialization();

     /**

      * This method returns whether or not this document supports custom lock descriptors for pessimistic locking.

      * 

      * @return True if the document can generate custom lock descriptors, false otherwise.

      * @see #getCustomLockDescriptor(Map, Person)

      */

     public boolean useCustomLockDescriptors();

     /**

      * Generates a custom lock descriptor for pessimistic locking. This method should not be called unless {@link #useCustomLockDescriptors()} returns true.

      * 

      * @param user The user trying to establish the lock.

      * @return A String representing the lock descriptor.

      * @see #useCustomLockDescriptors()

      * @see org.kuali.rice.krad.service.PessimisticLockService

      * @see org.kuali.rice.krad.service.impl.PessimisticLockServiceImpl

      */

     public String getCustomLockDescriptor(Person user);

 }