this interface is the implementation of JpaRepository of Spring Data And JPA and generic specifications of Spring Data JPA to query any parameter, you can find know about it in {@link <a https://spring.io/projects/spring-data-jpa} you must create an interface and extended of it then generate a bean of your interface and use all method that Spring Data implement it And then you Access the Spring Data Query Method and Used It in your Interface

Requirement

The library works with Java 8+, ladder Core 1.0.1+ and implemented Crud Project

Core

Crud

To Use this library in your project add dependencies in maven:

<dependency>
    <groupId>app.ladderproject</groupId>
    <artifactId>crud</artifactId>
    <version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>app.ladderproject</groupId>
<artifactId>Jdbc-client</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>

$ git clone https://github.com/nimamoosavi/jdbc-client.git $ cd jdbc-clients $ mvn clean install

Operations

This table shows a list of the current supported operations.

Operation	Code
equal	EQUALS
not equal	NOT_EQUALS
greater than	GREATER_THAN
greater than or equal to	GREATER_OR_EQUALS
less than	LESS_THAN
less than or equal to	LESS_OR_EQUALS
in	CONTAINS
start with	GREATER_THAN
end with	END_WITH
not contain	NOT_CONTAIN
not start with	NOT_START_WITH
not end with	NOT_END_WITH
blank	BLANK
not blank	NOT_BLANK
null	NULL
not null	NOT_NULL

Implementation

Using criteria object

To be able to custom filter you must just extend from our JdbcRepository:

@Repository
import app.ladderproject.sample.domain.entity.User;
        import app.ladderproject.jdbcclient.repository.JdbcRepository;
        import org.springframework.stereotype.Repository;

public interface UserRepository extends JdbcRepository<User, Long> {
}

if you extend from BaseController then call http://localhost:8080/sample/v1/users/all/query and set data in body:

{
  "criteria": {
    "operator": "EQUALS",
    "fieldName": "name",
    "value": "John"
  },
  "sorts": [
    "name",
    "lastName"
  ]
}

TODOs

• add operation for check operation like equality between two field
• add condition on object like user.userInfo.age > 10

Sample Project

this project used Crud Project And Jdbc Project And Core And ...

• Sample Project