org.osid.workflow

Interface WorkLookupSession

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable, OsidSession

public interface WorkLookupSession
extends OsidSession

This session provides methods for retrieving Work objects. The Work represents a fixed connection between two Availabilities.

This session defines views that offer differing behaviors when retrieving multiple objects.

• comparative view: elements may be silently omitted or re-ordered
• plenary view: provides a complete set or is an error condition
• isolated office view: All work methods in this session operate, retrieve and pertain to works defined explicitly in the current office. Using an isolated view is useful for managing Works with the WorkAdminSession.
• federated office view: All work methods in this session operate, retrieve and pertain to all works defined in this office and any other works implicitly available in this office through office inheritence.

Generally, the comparative view should be used for most applications as it permits operation even if there is data that cannot be accessed. The methods useFederatedOfficeView() and useIsolatedOfficeView() behave as a radio group and one should be selected before invoking any lookup methods.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canLookupWorks() Tests if this user can perform Work lookups.
Office	getOffice() Gets the Office associated with this session.
Id	getOfficeId() Gets the Office Id associated with this session.
Work	getWork(Id workId) Gets the Work specified by its Id.
WorkList	getWorks() Gets all Works.
WorkList	getWorksByGenusType(Type workGenusType) Gets a WorkList corresponding to the given work genus Type which does not include works of genus types derived from the specified Type.
WorkList	getWorksByIds(IdList workIds) Gets a WorkList corresponding to the given IdList.
WorkList	getWorksByParentGenusType(Type workGenusType) Gets a WorkList corresponding to the given work genus Type and include any additional works with genus types derived from the specified Type.
WorkList	getWorksByRecordType(Type workRecordType) Gets a WorkList containing the given work record Type.
void	useComparativeWorkView() The returns from the lookup methods may omit or translate elements based on this session, such as authorization, and not result in an error.
void	useFederatedOfficeView() Federates the view for methods in this session.
void	useIsolatedOfficeView() Isolates the view for methods in this session.
void	usePlenaryWorkView() A complete view of the Work returns is desired.

Methods inherited from interface org.osid.OsidSession

getAuthenticatedAgent, getAuthenticatedAgentId, getClockRate, getDate, getEffectiveAgent, getEffectiveAgentId, getFormatType, getLocale, isAuthenticated, startTransaction, supportsTransactions

Methods inherited from interface org.osid.binding.java.OsidSession

close

Methods inherited from interface java.io.Closeable

close

Method Detail

getOfficeId

Id getOfficeId()

Gets the Office Id associated with this session.

Returns:

the Office Id associated with this session

Compliance:

mandatory - This method must be implemented.

getOffice

Office getOffice()
                 throws OperationFailedException,
                        PermissionDeniedException

Gets the Office associated with this session.

Returns:

the office

Throws:

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

canLookupWorks

boolean canLookupWorks()

Tests if this user can perform Work lookups. A return of true does not guarantee successful authorization. A return of false indicates that it is known all methods in this session will result in a PERMISSION_DENIED. This is intended as a hint to an application that may opt not to offer lookup operations to unauthorized users.

Returns:

false if lookup methods are not authorized, true otherwise

Compliance:

mandatory - This method must be implemented.

useComparativeWorkView

void useComparativeWorkView()

The returns from the lookup methods may omit or translate elements based on this session, such as authorization, and not result in an error. This view is used when greater interoperability is desired at the expense of precision.

Compliance:

mandatory - This method is must be implemented.

usePlenaryWorkView

void usePlenaryWorkView()

A complete view of the Work returns is desired. Methods will return what is requested or result in an error. This view is used when greater precision is desired at the expense of interoperability.

Compliance:

mandatory - This method is must be implemented.

useFederatedOfficeView

void useFederatedOfficeView()

Federates the view for methods in this session. A federated view will include works in offices which are children of this office in the office hierarchy.

Compliance:

mandatory - This method is must be implemented.

useIsolatedOfficeView

void useIsolatedOfficeView()

Isolates the view for methods in this session. An isolated view restricts lookups to this office only.

Compliance:

mandatory - This method is must be implemented.

getWork

Work getWork(Id workId)
             throws NotFoundException,
                    OperationFailedException,
                    PermissionDeniedException

Gets the Work specified by its Id. In plenary mode, the exact Id is found or a NOT_FOUND results. Otherwise, the returned Work may have a different Id than requested, such as the case where a duplicate Id was assigned to a Work and retained for compatibility.

Parameters:

workId - Id of the Work

Returns:

the work

Throws:

NotFoundException - workId not found

NullArgumentException - workId is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method is must be implemented.

getWorksByIds

WorkList getWorksByIds(IdList workIds)
                       throws NotFoundException,
                              OperationFailedException,
                              PermissionDeniedException

Gets a WorkList corresponding to the given IdList. In plenary mode, the returned list contains all of the works specified in the Id list, in the order of the list, including duplicates, or an error results if an Id in the supplied list is not found or inaccessible. Otherwise, inaccessible Works may be omitted from the list and may present the elements in any order including returning a unique set.

Parameters:

workIds - the list of Ids to retrieve

Returns:

the returned Work list

Throws:

NotFoundException - an Id was not found

NullArgumentException - workIds is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

getWorksByGenusType

WorkList getWorksByGenusType(Type workGenusType)
                             throws OperationFailedException,
                                    PermissionDeniedException

Gets a WorkList corresponding to the given work genus Type which does not include works of genus types derived from the specified Type. In plenary mode, the returned list contains all known works or an error results. Otherwise, the returned list may contain only those works that are accessible through this session.

Parameters:

workGenusType - a work genus type

Returns:

the returned Work list

Throws:

NullArgumentException - workGenusType is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

getWorksByParentGenusType

WorkList getWorksByParentGenusType(Type workGenusType)
                                   throws OperationFailedException,
                                          PermissionDeniedException

Gets a WorkList corresponding to the given work genus Type and include any additional works with genus types derived from the specified Type. In plenary mode, the returned list contains all known works or an error results. Otherwise, the returned list may contain only those works that are accessible through this session

Parameters:

workGenusType - a work genus type

Returns:

the returned Work list

Throws:

NullArgumentException - workGenusType is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

getWorksByRecordType

WorkList getWorksByRecordType(Type workRecordType)
                              throws OperationFailedException,
                                     PermissionDeniedException

Gets a WorkList containing the given work record Type. In plenary mode, the returned list contains all known works or an error results. Otherwise, the returned list may contain only those works that are accessible through this session.

Parameters:

workRecordType - a work record type

Returns:

the returned Work list

Throws:

NullArgumentException - workRecordType is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

getWorks

WorkList getWorks()
                  throws OperationFailedException,
                         PermissionDeniedException

Gets all Works. In plenary mode, the returned list contains all known works or an error results. Otherwise, the returned list may contain only those works that are accessible through this session.

Returns:

a list of Works

Throws:

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.