JRedisGraph
RedisGraph Java client
Deprecation notice
As of Jedis version 4.2.0, this library is deprecated. Its features have been merged into Jedis. Please either install it from maven or the repo.
Official Releases
<dependencies>
<dependency>
<groupId>com.redislabs</groupId>
<artifactId>jredisgraph</artifactId>
<version>2.5.1</version>
</dependency>
</dependencies>Snapshots
<repositories>
<repository>
<id>snapshots-repo</id>
<url>https://oss.sonatype.org/content/repositories/snapshots</url>
</repository>
</repositories>and
<dependencies>
<dependency>
<groupId>com.redislabs</groupId>
<artifactId>jredisgraph</artifactId>
<version>2.6.0-SNAPSHOT</version>
</dependency>
</dependencies>Example: Using the Java Client
package com.redislabs.redisgraph;
import com.redislabs.redisgraph.graph_entities.Edge;
import com.redislabs.redisgraph.graph_entities.Node;
import com.redislabs.redisgraph.graph_entities.Path;
import com.redislabs.redisgraph.impl.api.RedisGraph;
import java.util.List;
public class RedisGraphExample {
public static void main(String[] args) {
// general context api. Not bound to graph key or connection
RedisGraph graph = new RedisGraph();
Map<String, Object> params = new HashMap<>();
params.put("age", 30);
params.put("name", "amit");
// send queries to a specific graph called "social"
graph.query("social","CREATE (:person{name:'roi',age:32})");
graph.query("social","CREATE (:person{name:$name,age:$age})", params);
graph.query("social","MATCH (a:person), (b:person) WHERE (a.name = 'roi' AND b.name='amit') CREATE (a)-[:knows]->(b)");
ResultSet resultSet = graph.query("social", "MATCH (a:person)-[r:knows]->(b:person) RETURN a, r, b");
while(resultSet.hasNext()) {
Record record = resultSet.next();
// get values
Node a = record.getValue("a");
Edge r = record.getValue("r");
//print record
System.out.println(record.toString());
}
resultSet = graph.query("social", "MATCH p = (:person)-[:knows]->(:person) RETURN p");
while(resultSet.hasNext()) {
Record record = resultSet.next();
Path p = record.getValue("p");
// More path API at Javadoc.
System.out.println(p.nodeCount());
}
// delete graph
graph.deleteGraph("social");
// get connection context - closable object
try(RedisGraphContext context = graph.getContext()) {
context.query("contextSocial","CREATE (:person{name:'roi',age:32})");
context.query("social","CREATE (:person{name:$name,age:$age})", params);
context.query("contextSocial", "MATCH (a:person), (b:person) WHERE (a.name = 'roi' AND b.name='amit') CREATE (a)-[:knows]->(b)");
// WATCH/MULTI/EXEC
context.watch("contextSocial");
RedisGraphTransaction t = context.multi();
t.query("contextSocial", "MATCH (a:person)-[r:knows]->(b:person{name:$name,age:$age}) RETURN a, r, b", params);
// support for Redis/Jedis native commands in transaction
t.set("x", "1");
t.get("x");
// get multi/exec results
List<Object> execResults = t.exec();
System.out.println(execResults.toString());
context.deleteGraph("contextSocial");
}
}
}