au.com.cybersearch2.classynode

Class Node

java.lang.Object

au.com.cybersearch2.classynode.NodeEntity

au.com.cybersearch2.classynode.Node

All Implemented Interfaces:

Serializable

public class Node
extends NodeEntity

Node Anchor for a component of a graph. Each node has a model which identifies what the node contains. The top node of a graph has a special model called "root".

Author:

Andrew Bowley 05/09/2014

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	NODE_BY_PRIMARY_KEY_QUERY Prefix for name of query to fetch node by primary key

Constructor Summary

Constructors

Constructor and Description
Node(int model, Node parent) Create an empty Node object and attach to an existing graph
Node(NodeEntity nodeEntity, Node parent) Construct a Node from its persisted state.

Method Summary

Methods

Modifier and Type	Method and Description
List<Node>	getChildren() Returns children list
Map<String,Object>	getProperties() Returns properties
static String	getProperty(Node node, String key, String defaultValue) Returns property value as quote-delimited text for logging perposes
static Node	marshall(NodeEntity nodeEntity) Marshall a nodeEntity object into a graph fragment containing all ancestors and immediate children.
static Node	rootNodeNewInstance() Returns root Node object
void	setProperties(Map<String,Object> properties) Set properties

Methods inherited from class au.com.cybersearch2.classynode.NodeEntity

get_children, get_id, get_parent_id, getLevel, getModel, getName, getParent, getTitle, set_children, set_id, set_parent_id, setLevel, setModel, setName, setParent, setTitle

Methods inherited from class java.lang.Object

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

Field Detail

NODE_BY_PRIMARY_KEY_QUERY

public static final String NODE_BY_PRIMARY_KEY_QUERY

Prefix for name of query to fetch node by primary key

See Also:

Constant Field Values

Constructor Detail

Node

public Node(NodeEntity nodeEntity,
    Node parent)

Construct a Node from its persisted state.

Parameters:

nodeEntity - The persisted object

parent - The parent on the graph under construction or null if this is the first node of the graph

Node

public Node(int model,
    Node parent)

Create an empty Node object and attach to an existing graph

Parameters:

model - Ordinal of model enum type

parent - Parent node - use Node.rootNodeNewInstance() for first Node in graph

Method Detail

setProperties

public void setProperties(Map<String,Object> properties)

Set properties

Parameters:

properties - Map<String, Object*gt;

getChildren

public List<Node> getChildren()

Returns children list

Returns:

List<Node>

getProperties

public Map<String,Object> getProperties()

Returns properties

Returns:

Map<String,Object>

rootNodeNewInstance

public static Node rootNodeNewInstance()

Returns root Node object

Returns:

Node

getProperty

public static String getProperty(Node node,
                 String key,
                 String defaultValue)

Returns property value as quote-delimited text for logging perposes

Parameters:

node - Node from which to extract property

key - Property name

defaultValue - Value to return if property not found

Returns:

String

marshall

public static Node marshall(NodeEntity nodeEntity)

Marshall a nodeEntity object into a graph fragment containing all ancestors and immediate children. Deletes children of other Nodes in graph to prevent triggering lazy fetches and thus potentially fetching the entire graph

Parameters:

nodeEntity - The object to marshall

Returns:

Root node of graph