FTGraphManagerImpl


Abstract

Instances of this class are used to fetch, create etc. graphs

Methods

-allGraphIds
-createGraphWithId:
create a graph using the given id
-graphWithId:
load the graph with the given id
-initForServer:withGraphIdToGraphDatabase:
initializes the receiver handing off its database
-initWithDatabase
initializes the receiver handing off its database
-lookupGraphWithId:
return the graph corresponding to the given id, if existent
-releaseGraph:
Informs the receiver that a graph may be removed from the cache
-removeGraphWithId:
removes the specified graph or does nothing, if the graph does not exist

allGraphIds


- (id <ECIterator>) allGraphIds;
method result
an iterator of all graph id's this graph manager manages or an empty iterator, if no graph exists

createGraphWithId:


create a graph using the given id

- (id <FTGraph>) createGraphWithId: (id <FTId> ) graphId;
Parameter Descriptions
graphId
underlying id to use
method result
created graph

graphWithId:


load the graph with the given id

- (id <FTGraph>) graphWithId: (id <FTId>) graphId;
method result
the graph with the given id or nil, if it does not exist

initForServer:withGraphIdToGraphDatabase:


initializes the receiver handing off its database

See Also:
initWithDatabase
- initForServer: (FTServerImpl *) theServer withGraphIdToGraphDatabase: (BDBDatabase *) theDatabase;
Parameter Descriptions
theServer
the server under which this instance runs
theDatabase
reference to the graphidToGraph database

initWithDatabase


initializes the receiver handing off its database

See Also:
initForServer:withGraphIdToGraphDatabase:
- initForServer: (FTServerImpl *) theServer withGraphIdToGraphDatabase: (BDBDatabase *) theDatabase;
Parameter Descriptions
theServer
the server under which this instance runs
theDatabase
reference to the graphidToGraph database

lookupGraphWithId:


return the graph corresponding to the given id, if existent

- (FTGraphImpl *) lookupGraphWithId: (id <FTId>) graphId;
method result
graph corresponding to the given id, if existent

releaseGraph:


Informs the receiver that a graph may be removed from the cache

- (void) releaseGraph: (FTGraphImpl *) item;
Parameter Descriptions
item
item to remove

removeGraphWithId:


removes the specified graph or does nothing, if the graph does not exist

- removeGraphWithId: (id <FTId>) graphId;
Parameter Descriptions
graphId
id of graph to remove
method result
self

Variables


graphIdToGraphCache


ECCache *graphIdToGraphCache;
Discussion

Contains all graphs being in memory at present

(Last Updated August 27, 2006)