com.vesoft.nebula.client.graph.data

Class Node

java.lang.Object

com.vesoft.nebula.client.graph.data.BaseDataObject

com.vesoft.nebula.client.graph.data.Node

public class Node
extends BaseDataObject

Constructor Summary

Constructors

Constructor and Description
Node(Vertex vertex) Node is a wrapper around the Vertex type returned by nebula-graph

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
ValueWrapper	getId() get vid from the node
int	hashCode()
boolean	hasLabel(String tagName) Used to be compatible with older versions of interfaces
boolean	hasTagName(String tagName) determine if node contains the given tag
List<String>	keys(String tagName) get property names from the node
List<String>	labels() Used to be compatible with older versions of interfaces
HashMap<String,ValueWrapper>	properties(String tagName) get property names and values from the node
List<String>	tagNames() get all tag name from the node
String	toString()
List<ValueWrapper>	values(String tagName) get property values from the node

Methods inherited from class com.vesoft.nebula.client.graph.data.BaseDataObject

getDecodeType, getTimezoneOffset, setDecodeType, setTimezoneOffset

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Node

public Node(Vertex vertex)
     throws UnsupportedEncodingException

Node is a wrapper around the Vertex type returned by nebula-graph

Parameters:

vertex - the vertex returned by nebula-graph

Throws:

UnsupportedEncodingException - if decoded binary failed

Method Detail

getId

public ValueWrapper getId()

get vid from the node

Returns:

ValueWrapper, if int id, you can call getId().asLong(), if string id, you can call getId().asString()

tagNames

public List<String> tagNames()

get all tag name from the node

Returns:

the list of tag name

labels

public List<String> labels()

Used to be compatible with older versions of interfaces

Returns:

the list of tag name

hasTagName

public boolean hasTagName(String tagName)

determine if node contains the given tag

Parameters:

tagName - the tag name

Returns:

boolean

hasLabel

public boolean hasLabel(String tagName)

Used to be compatible with older versions of interfaces

Returns:

tboolean

values

public List<ValueWrapper> values(String tagName)

get property values from the node

Parameters:

tagName - the tag name

Returns:

the list of ValueWrapper

keys

public List<String> keys(String tagName)
                  throws UnsupportedEncodingException

get property names from the node

Parameters:

tagName - the given tag name

Returns:

the list of property names

Throws:

UnsupportedEncodingException - decode error exception

properties

public HashMap<String,ValueWrapper> properties(String tagName)
                                        throws UnsupportedEncodingException

get property names and values from the node

Parameters:

tagName - the given tag name

Returns:

the HashMap, key is property name, value is ValueWrapper

Throws:

UnsupportedEncodingException - decode error exception

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object