edu.iu.iv.common.persistence.standard
Class JUNGGraphPajekPersister

java.lang.Object
  |
  +--edu.iu.iv.common.persistence.standard.JUNGGraphPajekPersister

All Implemented Interfaces:

Persister

public class JUNGGraphPajekPersister

extends java.lang.Object

implements Persister

A wrapper class for JUNG's PajekNetFile class that reads and writes Pajek .net files. This persister should only be used by users who are seeking to store very basic graphs which do not contain much attribute information. This wrapper currently does not store any edge weight information either.

Version:

0.1

Author:

Team IVC

See Also:

JUNG: Java Universal Network Graph Framework, http://jung.sourceforge.net

Constructor Summary

JUNGGraphPajekPersister()

Method Summary

boolean	canPersist(java.lang.Object model) Determines if this persister can persist the given data model.
boolean	canRestore(ResourceDescriptor resource)
PropertyMap	getPropertyMap() Gets a property map describing this persister and file format (if applicable).
void	persist(java.lang.Object model, ResourceDescriptor resource) Persists a data model to a resource such as a file or database.
java.lang.Object	restore(ResourceDescriptor resource) Restores a model from the specified resource.

Methods inherited from class java.lang.Object

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

Constructor Detail

JUNGGraphPajekPersister

public JUNGGraphPajekPersister()

Method Detail

getPropertyMap

public PropertyMap getPropertyMap()

Description copied from interface: Persister

Gets a property map describing this persister and file format (if applicable). If a persister does not wish to return a property map, it may return null. Returning a null value is highly discouraged. A persister must always provide enough information to let an application allow the user to make an informed choice.

Specified by:

getPropertyMap in interface Persister

Returns:

The property map of persister properties or null if the persister does not wish to return any map.

See Also:

Persister.getPropertyMap()

persist

public void persist(java.lang.Object model,
                    ResourceDescriptor resource)
             throws java.io.IOException,
                    PersistenceException

Description copied from interface: Persister

Persists a data model to a resource such as a file or database.

Specified by:

persist in interface Persister

Parameters:

model - The model to be persisted.

resource - The resource to persist the model to.

java.io.IOException

PersistenceException

See Also:

Persister.persist(java.lang.Object, edu.iu.iv.core.persistence.ResourceDescriptor)

restore

public java.lang.Object restore(ResourceDescriptor resource)
                         throws java.io.IOException,
                                java.lang.OutOfMemoryError,
                                PersistenceException

Description copied from interface: Persister

Restores a model from the specified resource. This method

Specified by:

restore in interface Persister

Returns:

The model to be restored from the data source.

java.io.IOException

java.lang.OutOfMemoryError

PersistenceException

See Also:

Persister.restore(edu.iu.iv.core.persistence.ResourceDescriptor)

canPersist

public boolean canPersist(java.lang.Object model)

Description copied from interface: Persister

Determines if this persister can persist the given data model.

Specified by:

canPersist in interface Persister

Parameters:

model - The model for which persistence is desired.

Returns:

true if this persister can persist this object, false otherwise.

See Also:

Persister.canPersist(java.lang.Object)

canRestore

public boolean canRestore(ResourceDescriptor resource)

Specified by:

canRestore in interface Persister

Parameters:

resource - The resource from which restoration is desired. An example of a resource is a file on disk.

Returns:

true if this persister can persist to or restore from this resource, false otherwise.

See Also:

Persister.canRestore(edu.iu.iv.core.persistence.ResourceDescriptor)