CloudNode (IDBS2)

java.lang.Object
- it.unimi.dico.islab.idbs2.cloud.CloudNode

```
public class CloudNode
extends Object
```
Representation of a node of the cloud providing methods for content's management. A node N is composed by a set of resources (class Resource), a prominence value and e set of edges (class CloudNode pointing other nodes. This class also contains the representation of the essential.
An essential is formally a couple <K,T> where K is a set of keywords (related to this node) associated with a relevance value and T is a set of types (associated with this node) associated with a relevance value.

In addiction it contains Hibernate information for cloud database synchronization.

Author:

Vegeziel

See Also:
Cloud, Resource, CloudEdge, EsTerm, EsType

Field Summary

Fields
Modifier and Type Field and Description

double DEFAULT_RESOURCE_RELEVANCE

Fields
Modifier and Type	Field and Description
`double`	`DEFAULT_RESOURCE_RELEVANCE`

Method Summary

Methods
Modifier and Type	Method and Description
`protected CloudEdge`	`addEdge(CloudNode node, double weight)` Adds an edge to the current node.
`EsTerm`	`addEsTerm(Integer termId, String termValue, Double relevance)` Add a keyword (represented by the class `EsTerm`) to this node.
`EsType`	`addEsType(String classId, Double relevance)` Add a type (represented by the class `EsType`) to this node.
`Resource`	`addResource(String resId, Double relevance)` Create and add a resource (instance of the `Resource` class) to this node.
`Set<Resource>`	`addResources(List<String> resources, List<Double> relevances)` Creates and add a list of resources (instances of the `Resource` class) to this node.
`Cloud`	`getCloud()` Get the owner cloud (`Cloud` object) of this node.
`CloudEdge`	`getEdge(CloudNode target)` Get the edge having this node as a source node and the given node as target if such an edge exists.
`Set<CloudEdge>`	`getEdges()` Get the set of edges having this node as a source node.
`Integer`	`getId()` Get the id of the corresponding database persisted object.
`SortedSet<EsTerm>`	`getKeywords()` Get the set of all keywords associated to this node, ordered by ascending `relevance`.
`double`	`getProminence()` Getter for the prominence value of this node
`Set<Resource>`	`getResources()` Get the set of all resources connected to this node.
`SortedSet<EsType>`	`getTypes()` Get the set of all types associated to this node, ordered by ascending `relevance`.
`protected void`	`setCloud(Cloud cl)` Set the owner cloud (`Cloud` object) of this node.
`protected void`	`setEdges(Set<CloudEdge> edges)` Set the edges having this node as a source node.
`void`	`setKeywords(SortedSet<EsTerm> keywords)` Set the keywords connected to this node.
`void`	`setProminence(double prominence)` Setter for the prominence value of this node
`protected void`	`setResources(Set<Resource> resources)` Set the resources connected to this node.
`protected void`	`setTypes(SortedSet<EsType> types)` Set the types connected to this node.
`String`	`toString()` Returns a string representation of this node.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - DEFAULT_RESOURCE_RELEVANCE
```
public final double DEFAULT_RESOURCE_RELEVANCE
```
    See Also:
    Constant Field Values
- Method Detail
  - addEdge
```
protected CloudEdge addEdge(CloudNode node,
                double weight)
```
    Adds an edge to the current node. Direct use of this method is discouraged. use the Cloud.addEdge method instead.
    
    Parameters:
    node - the CloudNode to which the edge is directed (the source node is the current node).
    weight - the edge weight.
    
    Returns:
    returns the generated edge (an instance of CloudEdge).
    See Also:
    Cloud.addEdge(CloudNode, CloudNode, double)
  - addResource
```
public Resource addResource(String resId,
                   Double relevance)
```
    Create and add a resource (instance of the Resource class) to this node. Recalling the fact that a CloudNode is a collection of resources (resulting from a clustering operation), this method is used to put in the node its belonging resources.
    
    Parameters:
    resId - the string representing the knowledge chunk identifier of the inserted resource.
    relevance - the relevance value of the inserted resource
    
    Returns:
    the generated Resource instance.
    See Also:
    Resource
  - addResources
```
public Set<Resource> addResources(List<String> resources,
                         List<Double> relevances)
```
    Creates and add a list of resources (instances of the Resource class) to this node.
    
    Parameters:
    resources - a list of resource ids to be included in this node.
    relevances - a list of relevances values to be associated (respecting the order of the list) to the ids in resources. This parameter could be null: in this case the DEFAULT_RESOURCE_RELEVANCE default value will be used for all resources.
    
    Returns:
    the set of created resources already added to this CloudNode
    See Also:
    addResource(String, Double)
  - getEdge
```
public CloudEdge getEdge(CloudNode target)
```
    Get the edge having this node as a source node and the given node as target if such an edge exists.
    
    Parameters:
    target - connected node.
    
    Returns:
    The required CloudEdge object or null if not found.
  - addEsType
```
public EsType addEsType(String classId,
               Double relevance)
```
    Add a type (represented by the class EsType) to this node.
    
    Parameters:
    classId - the identifier of the added type (RDF class).
    relevance - the relevance of the added type for this node.
    
    Returns:
    the generated type (instance of the EsType class)
    See Also:
    EsType
  - addEsTerm
```
public EsTerm addEsTerm(Integer termId,
               String termValue,
               Double relevance)
```
    Add a keyword (represented by the class EsTerm) to this node.
    
    Parameters:
    termId - the identifier of the added Term in the correlated KC database.
    termValue - the string representation of the added term.
    
    Returns:
    the generated keyword (instance of the EsTerm class)
    See Also:
    EsTerm
  - getResources
```
public Set<Resource> getResources()
```
    Get the set of all resources connected to this node.
    
    Returns:
    a set of all resources connected to this node.
  - setResources
```
protected void setResources(Set<Resource> resources)
```
    Set the resources connected to this node.
    
    Parameters:
    resources - a set of the resources to be inserted in this node.
  - getProminence
```
public double getProminence()
```
    Getter for the prominence value of this node
    
    Returns:
    the prominence value of this node.
  - setProminence
```
public void setProminence(double prominence)
```
    Setter for the prominence value of this node
    
    Parameters:
    prominence - the prominence value to be set.
  - getCloud
```
public Cloud getCloud()
```
    Get the owner cloud (Cloud object) of this node.
    
    Returns:
    the owner cloud of this node.
  - setCloud
```
protected void setCloud(Cloud cl)
```
    Set the owner cloud (Cloud object) of this node.
    
    Parameters:
    cl - the owner cloud of this node.
  - getId
```
public Integer getId()
```
    Get the id of the corresponding database persisted object.
    
    Returns:
    the identifier (primary key) of the corresponding row on the relational Hibernate-mapped relational database.
  - getEdges
```
public Set<CloudEdge> getEdges()
```
    Get the set of edges having this node as a source node.
    
    Returns:
    a set of all edges starting from this node.
  - setEdges
```
protected void setEdges(Set<CloudEdge> edges)
```
    Set the edges having this node as a source node.
    
    Parameters:
    edges - a set of all edges starting from this node.
  - getTypes
```
public SortedSet<EsType> getTypes()
```
    Get the set of all types associated to this node, ordered by ascending relevance.
    
    Returns:
    a set of all types (object of EsType class) associated with this node.
  - setTypes
```
protected void setTypes(SortedSet<EsType> types)
```
    Set the types connected to this node.
    
    Parameters:
    types - the set of all types connected with this node.
  - getKeywords
```
public SortedSet<EsTerm> getKeywords()
```
    Get the set of all keywords associated to this node, ordered by ascending relevance.
    
    Returns:
    a set of all keywords (object of EsKeyword class) associated with this node.
  - setKeywords
```
public void setKeywords(SortedSet<EsTerm> keywords)
```
    Set the keywords connected to this node.
    
    Parameters:
    keywords - the set of all types connected with this node.
  - toString
```
public String toString()
```
    Returns a string representation of this node.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    a string of type "CNode x" where x is the identifier of this cloud node.

Class CloudNode

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_RESOURCE_RELEVANCE

Method Detail

addEdge

addResource

addResources

getEdge

addEsType

addEsTerm

getResources

setResources

getProminence

setProminence

getCloud

setCloud

getId

getEdges

setEdges

getTypes

setTypes

getKeywords

setKeywords

toString