private IndexDescriptor createAnIndex(
HighlyAvailableGraphDatabase db, Label label, String propertyName) throws KernelException {
try (Transaction tx = db.beginTx()) {
Statement statement = statement(db);
int labelId = statement.tokenWriteOperations().labelGetOrCreateForName(label.name());
int propertyKeyId =
statement.tokenWriteOperations().propertyKeyGetOrCreateForName(propertyName);
IndexDescriptor index = statement.schemaWriteOperations().indexCreate(labelId, propertyKeyId);
tx.success();
return index;
}
}
private IndexDescriptor createIndex(String labelName, String propertyKeyName)
throws KernelException {
try (Transaction tx = db.beginTx()) {
Statement statement = bridge.instance();
int labelId = statement.tokenWriteOperations().labelGetOrCreateForName(labelName);
int propertyKeyId =
statement.tokenWriteOperations().propertyKeyGetOrCreateForName(propertyKeyName);
IndexDescriptor index = statement.schemaWriteOperations().indexCreate(labelId, propertyKeyId);
tx.success();
return index;
}
}
private long createNode(
Statement statement, String labelName, String propertyKeyName, Object value)
throws KernelException {
int labelId = statement.tokenWriteOperations().labelGetOrCreateForName(labelName);
int propertyKeyId =
statement.tokenWriteOperations().propertyKeyGetOrCreateForName(propertyKeyName);
long nodeId = statement.dataWriteOperations().nodeCreate();
statement.dataWriteOperations().nodeAddLabel(nodeId, labelId);
statement
.dataWriteOperations()
.nodeSetProperty(nodeId, Property.property(propertyKeyId, value));
return nodeId;
}
private void changeName(long nodeId, String propertyKeyName, Object newValue)
throws KernelException {
try (Transaction tx = db.beginTx()) {
Statement statement = bridge.instance();
int propertyKeyId =
statement.tokenWriteOperations().propertyKeyGetOrCreateForName(propertyKeyName);
statement
.dataWriteOperations()
.nodeSetProperty(nodeId, Property.property(propertyKeyId, newValue));
tx.success();
}
}