Database Reference
In-Depth Information
Here
TitanKey
and
LabelKey
are classes provided by Titan Java
API, which are used to prepare vertex and edge keys.
5.
Now let's read line by line from the file and extract vertex and edge
properties:
while (reader.ready())
{
String line = reader.readLine();
StringTokenizer tokenizer = new
StringTokenizer(line, ",");
while (tokenizer.hasMoreTokens())
{
//
System.out.println(tokenizer.nextToken());
//
twitter_tag,fname,lname,twitter_tag,fname,lname,edgeName,edgeProperty
final String in_twitter_tag =
tokenizer.nextToken();
final String in_fname =
tokenizer.nextToken();
final String in_lname =
tokenizer.nextToken();
final String out_twitter_tag =
tokenizer.nextToken();
final String out_fname =
tokenizer.nextToken();
final String out_lname =
tokenizer.nextToken();
final String edgeName =
tokenizer.nextToken();
final String edgeProperty =
tokenizer.nextToken();
...
}
}
6.
Now create in and out vertices within an extreme out
while
loop
(see step 5) and assign an edge as follows:
