net.yacy.cora.lod

Class Node

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<java.lang.String,byte[]>

net.yacy.cora.lod.Node

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map<java.lang.String,byte[]>

public class Node
extends java.util.HashMap<java.lang.String,byte[]>
implements java.util.Map<java.lang.String,byte[]>

class for a RDF node element. For a short primer see http://www.w3.org/TR/REC-rdf-syntax/

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
private static long	serialVersionUID
static java.lang.String	SUBJECT
private Rdf	type

Constructor Summary

Constructors

Constructor and Description
Node(Rdf type)
Node(Rdf type, byte[] subject)
Node(Rdf type, java.util.Map<java.lang.String,byte[]> set) initialize the triples.

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	getObject(Vocabulary predicate)
byte[]	getSubject()
Rdf	getType()
boolean	isBlank()
byte[]	removePredicate(Vocabulary predicate)
byte[]	setObject(Vocabulary predicate, byte[] object)
void	setSubject(byte[] subject)
byte[]	toObject()

Methods inherited from class java.util.HashMap

clear, clone, containsKey, containsValue, entrySet, get, isEmpty, keySet, put, putAll, remove, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, values

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

SUBJECT

public static final java.lang.String SUBJECT

See Also:

Constant Field Values

type

private final Rdf type

Constructor Detail

Node

public Node(Rdf type)

Node

public Node(Rdf type,
    byte[] subject)

Node

public Node(Rdf type,
    java.util.Map<java.lang.String,byte[]> set)

initialize the triples. one of the properties must be the resource SUBJECT for a blank node the SUBJECT can be omitted

Parameters:

set -

Method Detail

getType

public Rdf getType()

isBlank

public boolean isBlank()

getSubject

public byte[] getSubject()

setSubject

public void setSubject(byte[] subject)

getObject

public byte[] getObject(Vocabulary predicate)

setObject

public byte[] setObject(Vocabulary predicate,
               byte[] object)

removePredicate

public byte[] removePredicate(Vocabulary predicate)

toObject

public byte[] toObject()