com.sparsity.sparksee.algorithms

Class DisjointCommunities

java.lang.Object

com.sparsity.sparksee.algorithms.DisjointCommunities

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class DisjointCommunities
extends java.lang.Object
implements java.io.Closeable

DisjointCommunities class.

This class contains the results processed on a DisjointCommunityDetection algorithm.

These results contain information related to the communities found. We must consider that each community has a number in order to identify it. These number identifiers are values from 0 to N-1, where N is the number of different communities found.

When executing any implementation of the DisjointCommunityDetection, it is possible to indicate whether the results of the execution must be stored persistently using the class DisjointCommunityDetection setMaterializedAttribute method. In case the results are set to be materialized, users can retrieve this data whenever they want, even if the graph has been closed and opened again, just by creating a new instance of this class.

Check out the 'Algorithms' section in the SPARKSEE User Manual for more details on this.

Author:

Sparsity Technologies http://www.sparsity-technologies.com

Constructor Summary

Constructors

Constructor and Description
DisjointCommunities(Session session, java.lang.String materializedattribute) Creates a new instance of DisjointCommunities.

Method Summary

Modifier and Type	Method and Description
void	close() Closes the DisjointCommunities instance.
long	getCommunity(long idNode) Returns the disjoint community where the given node belongs to.
long	getCount() Returns the number of communities found in the graph.
Objects	getNodes(long idCommunity) Returns the collection of nodes contained in the given community.
long	getSize(long idCommunity) Returns the number of nodes contained in the given community.
boolean	isClosed() Gets if DisjointCommunities instance has been closed or not.

Methods inherited from class java.lang.Object

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

Constructor Detail

DisjointCommunities

public DisjointCommunities(Session session,
                           java.lang.String materializedattribute)

Creates a new instance of DisjointCommunities.

This constructor method can only be called when a previous execution of any implementation of the DisjointCommunityDetection class has materialized the results in a common attribute type for all the nodes in the graph. For further information about materializing the results processed on any DisjointCommunityDetection execution see the documentation of the DisjointCommunityDetection#SetMaterializedAttribute method.

Parameters:

session - [in] Session to get the graph Graph on which the information will be retrieved just by getting the values contained in the given common attribute type for all the nodes in the graph and processing them.

materializedattribute - [in] The common attribute type for all the nodes in the graph where data will be retrieved in order to process the results related to the communities found in the graph.

Method Detail

getNodes

public Objects getNodes(long idCommunity)

Returns the collection of nodes contained in the given community.

Parameters:

idCommunity - The community for which the collection of nodes contained in it will be returned.

Returns:

The collection of node identifiers contained in the given community.

getCommunity

public long getCommunity(long idNode)

Returns the disjoint community where the given node belongs to.

Parameters:

idNode - [in] The node identifier for which the disjoint community identifier where it belongs will be returned.

Returns:

The disjoint community identifier where the given node identifier belongs to.

getCount

public long getCount()

Returns the number of communities found in the graph.

Returns:

The number of communities found in the graph.

isClosed

public boolean isClosed()

Gets if DisjointCommunities instance has been closed or not.

Returns:

TRUE if the DisjointCommunities instance has been closed, FALSE otherwise.

See Also:

close()

getSize

public long getSize(long idCommunity)

Returns the number of nodes contained in the given community.

Parameters:

idCommunity - The community for which the number of nodes contained in it will be returned.

Returns:

The number of nodes contained in the given community.

close

public void close()

Closes the DisjointCommunities instance.

It must be called to ensure the integrity of all data.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable