Features
A. Integrate
- [x] Support the rapid integration of nebula graph and springboot through simple configuration
B. Single Table (vertex, edge) Operation, No Need to Write nGQL | cypher
See【By Basic DAO】
| API | Instructions |
|---|---|
| insert(T entity) | Insert vertex, null value override |
| insertSelective(T entity) | Insert vertex, write only non empty properties. |
| selectById(ID id) | Get vertex by primary key |
| selectBySelective(T entity) | Query by non empty properties |
| insertEdge(S startNode, R edge, E endNode) | Establish the relationship between two nodes |
selectPage(Page<T> page) | Paging query |
| existsEdge(ID startId, Class edgeType, ID endId) | Make sure whether there is a certain relationship between the two vertexes |
| listStartNodes(Class edgeType, ID endId) | Find all upstream vertexes in a certain relationship through a specific vertex |
| startNode(Class edgeType, ID endId) | Find the unique upstream vertex of a specific relationship through a specific vertex |
C. Use XML to Centrally Manage nGQL | cypher
See【By Custom nGQL】
Scan the specified resource package, obtain the nGQL | cypher template, and operate on the basis of the template.
a. Parameter substitution
- [x] replace parameters with placeholder
nGQL | cypherand execute to the database;- Write query script template and match parameter control to realize dynamic query
- Realize batch operation through parameter loop
b. Process the ResultSet through the method signature information of the Dao interface to form the type required by the business
[x] Types of Collection
Collection<Types of Basic>Collection<Types of Object>The object type refers to the following object support:
[x] Types of Basic
- String
- Boolean
- Number (Integer, Long, Float, Double, Byte, Short). Only wrapper classes are supported for the time being
[x] Types of Object
Object
Multiple column return values are converted to map
Multiple column return values are converted to POJO
Support vertex type conversion to POJO
Support edge type conversion to POJO
[x] ResultSet If you do not need to use the result processing provided by the framework, you can directly declare the return value
ResultSeton the interface and process it yourself
D. Interface of Primary key generation
- [x] Provide the embedding point of the primary key generator, and developers can customize the primary key generator.