|
Property | Value |
---|---|
Neo4jOperation | One of the Neo4jOperation enum values `CREATE_NODE, REMOVE_NODE, CREATE_RELATIONSHIP, REMOVE_RELATIONSHIP` which determines which action to perform |
Neo4jNodeId | the id of the created node |
Neo4jRelationshipId | the id of the created relationship |
The producer will set the headers for downstream processors once the operation has taken place. Any ID headers set prior to the producer are ignored.
Operations
The neo4j component looks for the Neo4jOperation header to determine what kind of entity to create, which is one of the following enum types
`CREATE_NODE, REMOVE_NODE, CREATE_RELATIONSHIP, REMOVE_RELATIONSHIP`
The body of the message is used to determine the node or relationship to manipulate. The following body types are supported:
For CREATE_NODE:
- null body - create default node
- Map body - create node with the properties set from the map
For REMOVE_NODE:
- Long or Integer - remove node using the body as the id
- neo4j Node instance - remove the node specified by that instance
For CREATE_RELATIONSHIP:
- SpringDataRelationship - create relationship specified by any @NodeEntity annoted Spring entities.
- org.apache.camel.component.neo4j.BasicRelationship - create relationship specified by the neo4j node types
For REMOVE_RELATIONSHIP:
- Long or Integer - remove relationship using the body as the id
- SpringDataRelationship - remove relationship specified by the @NodeEntity annoted Spring entities.
- org.apache.camel.component.neo4j.BasicRelationship - remove relationship specified by the neo4j node types
Samples
If you wanted to insert a new empty node every 1 seconds
from("timer://foo?period=1000").to("spring-neo4j:http://localhost:7474/data")
If you wanted to delete a specific node specified by a filename, eg a file of 100 would delete node 100.
from("file:/var/data").process(new Processor() { @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setBody(exchange.getIn().getHeader("CamelFileName")); } }).to("spring-neo4j:http://localhost:7474/data")