WikiNerGraphConnector.java 文件源码

private WikiNerGraphConnector(String dbDir) {
    graphDb = new GraphDatabaseFactory().newEmbeddedDatabase(dbDir);
    IndexDefinition indexDefinition;
    Schema schema;
    Transaction tx = graphDb.beginTx(); 

    schema = graphDb.schema();
    IndexManager index = graphDb.index();
    entities = index.forNodes(entityLabel.name());
    cities = index.forNodes(cityLabel.name());
    try{
         indexDefinition = schema.indexFor( entityLabel ).on( "nameType" ).create();
    }catch(Exception e){

    }

    tx.success();
    tx.close();
}