Rule Matcher
Rule Matcher Stored Procedures
This project requires Neo4j 3.2.x
Instructions
This project uses maven, to build a jar-file with the procedure in this project, simply package the project with maven:
mvn clean package
This will produce a jar-file, target/matcher-1.0-SNAPSHOT.jar,
that can be copied to the plugin directory of your Neo4j instance.
cp target/rule-matcher-1.0-SNAPSHOT.jar neo4j-enterprise-3.2.3/plugins/.
Edit your Neo4j/conf/neo4j.conf file by adding this line:
dbms.security.procedures.unrestricted=com.maxdemarzi.*
Restart your Neo4j Server.
Create the Schema by running this stored procedure:
CALL com.maxdemarzi.schema.generate
Create some test data:
CREATE (user1:User {username:'max'})
CREATE (user2:User {username:'jeff'})
CREATE (user3:User {username:'srikant'})
CREATE (user4:User {username:'stephen'})
CREATE (user5:User {username:'todd'})
CREATE (user6:User {username:'tyler'})
CREATE (a1:Attribute {id:'a1'})
CREATE (a2:Attribute {id:'a2'})
CREATE (a3:Attribute {id:'a3'})
CREATE (a4:Attribute {id:'a4'})
CREATE (a5:Attribute {id:'a5'})
CREATE (a6:Attribute {id:'a6'})
CREATE (user1)-[:HAS]->(a1)
CREATE (user1)-[:HAS]->(a2)
CREATE (user2)-[:HAS]->(a3)
CREATE (user2)-[:HAS]->(a4)
CREATE (user3)-[:HAS]->(a1)
CREATE (user3)-[:HAS]->(a3)
CREATE (user4)-[:HAS]->(a1)
CREATE (user5)-[:HAS]->(a5)
CREATE (user6)-[:HAS]->(a5)
CREATE (user6)-[:HAS]->(a6)
Create a rule:
CALL com.maxdemarzi.rules.create('Rule 1', '(a1 & a2) | (a3 & a4)') # (a1 and a2) or (a3 and a4)
CALL com.maxdemarzi.rules.create('Rule 2', '(a1 & a2) | (a3 & !a4)') # (a1 and a2) or (a3 and NOT a4)
Match a user:
CALL com.maxdemarzi.match.user('max') yield node return node
CALL com.maxdemarzi.match.user('srikant') yield node return node
Match attributes:
CALL com.maxdemarzi.match.attributes(['a1','a2']) yield node return node
CALL com.maxdemarzi.match.attributes(['a1','a3']) yield node return node
See if attributes satisfy a rule:
CALL com.maxdemarzi.rules.satisfy('(a1 & a2) | (a3 & !a4)', ['a1', 'a4']) yield value return value