Package org.gcube.informationsystem.discovery.knowledge

Class UsageKnowledge

java.lang.Object

org.gcube.informationsystem.discovery.knowledge.UsageKnowledge

public class UsageKnowledge
extends Object

A class that stores and manages knowledge about the usage of linked entities within the model.

It maintains a map where keys are type names (source, relation, or target) and values are sets of LinkedEntity objects that use that type.

Author:

Luca Frosini (ISTI - CNR)

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<String,Set<LinkedEntity>>	map	A map from type names to the set of linked entities that use them.

Constructor Summary

Constructors

Constructor	Description
UsageKnowledge()	Default constructor.

Method Summary

Modifier and Type	Method	Description
protected void	add(String typeName, LinkedEntity linkedEntity)	Adds a linked entity to the usage map for a specific type name.
void	add(LinkedEntity linkedEntity)	Adds a linked entity to the knowledge base, indexing it by its source, relation, and target types.
void	addAll(Collection<LinkedEntity> linkedEntities)	Adds a collection of linked entities to the knowledge base.
Set<LinkedEntity>	getUsage(String typeName)	Returns the set of linked entities that use a specific type.

Methods inherited from class java.lang.Object

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

Field Details

map

protected Map<String,Set<LinkedEntity>> map

A map from type names to the set of linked entities that use them.

Constructor Details

UsageKnowledge

public UsageKnowledge()

Default constructor. Initializes the usage map.

Method Details

add

protected void add(String typeName,
 LinkedEntity linkedEntity)

Adds a linked entity to the usage map for a specific type name.

Parameters:

typeName - The type name (source, relation, or target).

linkedEntity - The linked entity to add.

add

public void add(LinkedEntity linkedEntity)

Adds a linked entity to the knowledge base, indexing it by its source, relation, and target types.

Parameters:

linkedEntity - The linked entity to add.

addAll

public void addAll(Collection<LinkedEntity> linkedEntities)

Adds a collection of linked entities to the knowledge base.

Parameters:

linkedEntities - The collection of linked entities to add.

getUsage

public Set<LinkedEntity> getUsage(String typeName)

Returns the set of linked entities that use a specific type.

Parameters:

typeName - The name of the type.

Returns:

A set of LinkedEntity objects, or null if the type is not found.