oracle.pg.nosql

Class EdgeCache

java.lang.Object

oracle.pg.nosql.CommonCache

oracle.pg.nosql.EdgeCache

public class EdgeCache
extends CommonCache

This class implements a cache layer for OracleEdge objects. Note that by design each graph will have its own verticies cache.

Method Summary

Methods

Modifier and Type	Method and Description
void	clearCache() This method empties the cache
void	dumpStatistics(PrintStream ps) Print out the statistics collected.
OracleEdge	get(Long lID) Get an Edge from the cache using the given ID.
static EdgeCache	getInstance(OraclePropertyGraph opg) This method returns an instance of EdgeCache.
void	put(Long lID, OracleEdge e) Add one Edge to the cache.
void	put(OracleEdge e) Add one Edge to the cache
OracleEdge	remove(Long lID) Remove one Edge from the cache
OracleEdge	remove(OracleEdge e) Remove one Edge from the cache

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

clearCache

public void clearCache()

This method empties the cache

dumpStatistics

public void dumpStatistics(PrintStream ps)

Print out the statistics collected.

get

public OracleEdge get(Long lID)

Get an Edge from the cache using the given ID. Returns NULL if the edge is not in the cache.

getInstance

public static EdgeCache getInstance(OraclePropertyGraph opg)

This method returns an instance of EdgeCache. Note that there is a 1:1 mapping between property graph names and EdgeCache objects

put

public void put(Long lID,
       OracleEdge e)

Add one Edge to the cache. TODO: avoid two separate calls to this API with the same IDs but different vertices.

put

public void put(OracleEdge e)

Add one Edge to the cache

remove

public OracleEdge remove(Long lID)

Remove one Edge from the cache

remove

public OracleEdge remove(OracleEdge e)

Remove one Edge from the cache