Hi,
I'm using the following code. Please suggest why it is not creating the
nodes.
GraphDatabaseService db = new GraphDatabaseFactory()
.newEmbeddedDatabase(NEO4J_DB_PATH);
ExecutionEngine engine = new ExecutionEngine(db);
Transaction transaction = db.beginTx();
ExecutionResult result;
String query = "MERGE (ad:Ad {name: {name}, date: {date}}) ON
MATCH SET ad.reach = ad.reach + {reach}, ad.totalViewTime =
ad.totalViewTime + {totalViewTime} ON CREATE SET ad.reach = {reach},
ad.totalViewTime = {totalViewTime} RETURN ad";
Map<String, Object> paramValues = new HashMap<String, Object>();
paramValues.put("name", adNodePojo.getName());
paramValues.put("date", adNodePojo.getDate());
paramValues.put("reach", adNodePojo.getReach());
paramValues.put("totalViewTime", adNodePojo.getTotalViewTime());
result = engine.execute(query, paramValues);
Iterator<Node> column = result.columnAs(AD_NODE_PROPERTY_NAME);
for (Node node : IteratorUtil.asIterable(column)) {
System.out.println("Node: " + node);
System.out.println("Name: " + ": " +
node.getProperty("name"));
System.out.println("Date: " + ": " +
node.getProperty("date"));
System.out
.println("Reach: " + ": " +
node.getProperty("reach"));
System.out.println("View: " + ": "
+ node.getProperty("totalViewTime"));
}
transaction.success();
-Sukaant Chaudhary
<http://in.linkedin.com/pub/sukaant-chaudhary/33/ba8/479>
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