[Neo4j] Copy all the Relationships to another Node

[Emil Dombagolla]

Hi All,

I am using Java API with neo4j 1.4.2.

I want to copy all the relationships(Income/Outgoing) of a node to another
node and delete the original node. Can anyone suggest what will be the
easiest way.

Emil Dombagolla,
Thank you so much.
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[Mattias Persson]

A straightforward:

Node target = db.createNode();
copyProperties( source, target );
for ( Relationship sourceRel : source.getRelationships() ) {
Relationship targetRel = source.equals( sourceRel.getStartNode() ) ?
target.createRelationshipTo( sourceRel.getEndNode(),
sourceRel.getType() ) :
sourceRel.getEndNode().createRelationshipTo( target,
sourceRel.getType() );
copyProperties( sourceRel, targetRel );
sourceRel.delete();
}
source.delete();
...
private static void copyProperties( PropertyContainer source,
PropertyContainer target ) {
for ( String key : source.getPropertyKeys() )
target.setProperty( key, source.getProperty( key ) );
}

would suffice, I'd guess.

2012/1/12 Emil Dombagolla <em...@hsenidoutsourcing.com>

--
Mattias Persson, [mat...@neotechnology.com]
Hacker, Neo Technology
www.neotechnology.com

[Emil Dombagolla]

Thanks you so much. 

--
Emil Dombagolla,
Software Engineer
hSenid Software International

Phone : +94-11-2699754  

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