Interface RealmQuerySession

All Superinterfaces:

AutoCloseable, Closeable, OsidSession, OsidSession

All Known Subinterfaces:

RealmSearchSession

public interface RealmQuerySession
extends OsidSession

This session provides methods for querying Realm objects. The search query is constructed using the RealmQuery .

Realms may have a query record indicated by their respective record types. The query record is accessed via the RealmQuery . The returns in this session may not be cast directly to these interfaces.

Method Summary

Modifier and Type	Method	Description
boolean	canSearchRealms()	Tests if this user can perform Realm searches.
RealmQuery	getRealmQuery()	Gets a realm query.
RealmList	getRealmsByQuery(RealmQuery realmQuery)	Gets a list of Realms matching the given search.

Methods inherited from interface Closeable

close

Methods inherited from interface OsidSession

close

Modifier and Type	Method	Description
void	close()	Close this session.

Methods inherited from interface OsidSession

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

Modifier and Type	Method	Description
Agent	getAuthenticatedAgent()	Gets the agent authenticated to this session.
Id	getAuthenticatedAgentId()	Gets the Id of the agent authenticated to this session.
BigDecimal	getClockRate()	Gets the rate of the service clock.
Date	getDate()	Gets the service date which may be the current date or the effective date in which this session exists.
Agent	getEffectiveAgent()	Gets the effective agent in use by this session.
Id	getEffectiveAgentId()	Gets the Id of the effective agent in use by this session.
Type	getFormatType()	Gets the DisplayText format Type preference in effect for this session.
Locale	getLocale()	Gets the locale indicating the localization preferences in effect for this session.
boolean	isAuthenticated()	Tests if an agent is authenticated to this session.
Transaction	startTransaction()	Starts a new transaction for this sesson.
boolean	supportsTransactions()	Tests for the availability of transactions.

Method Details

canSearchRealms

boolean canSearchRealms()

Tests if this user can perform Realm searches. 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 search operations to unauthorized users.

Returns:

false if search methods are not authorized, true otherwise

Compliance:

mandatory - This method must be implemented.

getRealmQuery

RealmQuery getRealmQuery()

Gets a realm query.

Returns:

the realm query

Compliance:

mandatory - This method must be implemented.

getRealmsByQuery

RealmList getRealmsByQuery(RealmQuery realmQuery)
                    throws OperationFailedException,
PermissionDeniedException

Gets a list of Realms matching the given search.

Parameters:

realmQuery - the realm query

Returns:

the returned RealmList

Throws:

NullArgumentException - realmQuery is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

UnsupportedException - realmQuery is not of this service

Compliance:

mandatory - This method must be implemented.