EasyJDBC

Library for easy persistence with JDBC!

View the Project on GitHub

Easy JDBC Library

Easy JDBC is a library built to facilitate the use of JDBC for data persistence in Java projects.

Latest version of the library: 1.8-beta

How to incorporate into your project?

Incorporate using Maven:

<dependency>
    <groupId>com.github.tadeuespindolapalermo.easyjdbc</groupId>
    <artifactId>easy-jdbc</artifactId>
    <version>1.8-beta</version>
</dependency>

Incorporate using Gradle:

implementation 'com.github.tadeuespindolapalermo.easyjdbc:easy-jdbc:1.8-beta'

Main links:

Video presentation of the library at the event FLISOL DF 2020 (02/05/2020)

Source code used to present the library at the FLISOL event

MVN Repository

Sonatype

Be part of this project reporting bug’s or becoming a committer!
Support this project and be part of the Easy JDBC community!

Send e-mail to tadeupalermoti@gmail.com and make your request!

SIMPLE USAGE EXAMPLES

EXAMPLE 1

PRODUCT SEQUENCER - PostgreSQL

CREATE SEQUENCE public.product_sequence
    INCREMENT 1
    START 1
    MINVALUE 1
    MAXVALUE 9223372036854775807
    CACHE 1;

PRODUCT TABLE - PostgreSQL

CREATE TABLE public.tb_product (
    id bigint NOT NULL DEFAULT nextval('product_sequence'::regclass),
    desc_product character varying COLLATE pg_catalog."default" NOT NULL,
    amt bigint NOT NULL,
    value numeric NOT NULL,
    CONSTRAINT product_pkey PRIMARY KEY (id)
)

PRODUCT ENTITY - PERSISTENT CLASS

import com.github.tadeuespindolapalermo.easyjdbc.annotation.ColumnConfig;
import com.github.tadeuespindolapalermo.easyjdbc.annotation.Identifier;
import com.github.tadeuespindolapalermo.easyjdbc.annotation.NotColumn;
import com.github.tadeuespindolapalermo.easyjdbc.annotation.PersistentClassNamed;

@PersistentClassNamed("tb_product")
public class Product {

    private Long id;

    @ColumnConfig(columnName = "desc_product")
    private String name;

    private double value;

    @ColumnConfig(columnName = "amt")
    private int amount;

    @NotColumn
    private boolean bestSeller;

    public Product() { }	

    public Product(String name, double value, int amount) {		
        this.name = name;
	this.value = value;
	this.amount = amount;
    }
	
    @Identifier(autoIncrement = true)
    public Long getId() {
        return id;
    }
	
    public void setId(Long id) {
	this.id = id;
    }

    public String getName() {
	return name;
    }

    public void setName(String name) {
	this.name = name;
    }

    public double getValue() {
	return value;
    }

    public void setValue(double value) {
	this.value = value;
    }

    public int getAmount() {
	return amount;
    }

    public void setAmount(int amount) {
	this.amount = amount;
    }

    @Override
    public int hashCode() {
	final int prime = 31;
	int result = 1;
	result = prime * result + ((id == null) ? 0 : id.hashCode());
	return result;
    }

    @Override
    public boolean equals(Object obj) {
	if (this == obj)
   	    return true;
	if (obj == null)
	    return false;
	if (getClass() != obj.getClass())
	    return false;
	Product other = (Product) obj;
	if (id == null) {
	    if (other.id != null)
	        return false;
	} else if (!id.equals(other.id))
	    return false;
	return true;
    }

    @Override
    public String toString() {
	return "Product - id: " + id + " | name: " + name + " | value: " + value + " | amount: " + amount;
    }
}

OPERATIONS WITH THE PRODUCT ENTITY

  
import java.util.List;

import com.github.tadeuespindolapalermo.easyjdbc.connection.InfoConnection;
import com.github.tadeuespindolapalermo.easyjdbc.crud.CrudEntity;
import com.github.tadeuespindolapalermo.easyjdbc.enumeration.EnumDatabase;

import br.com.productregistration.model.Product;

public class Main {
        
    public static void main(String[] args) throws Exception {
                
        toConnect();

	CrudEntity<Product> crudEntity = new CrudEntity<>(Product.class);
		
	crudEntity.save(createProduct("Product A", 400.0, 30));
	crudEntity.save(createProduct("Product B", 800.5, 45));
	crudEntity.save(createProduct("Product C", 1900.3, 02));
	crudEntity.save(createProduct("Product D", 50.1, 15));

	Product product = crudEntity.searchById(1L);
		
	product.setName("Product A Update");
	crudEntity.update(product);

	List<Product> products = crudEntity.getAll();
	products.forEach(System.out::println);

	crudEntity.deleteById(2L);

	crudEntity.search("select * from tb_product").forEach(System.out::println);		
    }

    private static void toConnect() {
	InfoConnection.setDatabase(EnumDatabase.POSTGRE);
	InfoConnection.setNameDatabase("product-registration");
	InfoConnection.setUser("your-user-db");
	InfoConnection.setPassword("your-password-db");
    }

    private static Product createProduct(String name, double value, int amount) {
	return new Product(name, value, amount);
    }
}

Output result:

22:44:02,729 INFO -> Connection successful!
Bank: POSTGRE
Database: product-registration
Product - id: 2 | name: Product B | value: 800.5 | amount: 45
Product - id: 3 | name: Product C | value: 1900.3 | amount: 2
Product - id: 4 | name: Product D | value: 50.1 | amount: 15
Product - id: 1 | name: Product A Update | value: 400.0 | amount: 30
Product - id: 3 | name: Product C | value: 1900.3 | amount: 2
Product - id: 4 | name: Product D | value: 50.1 | amount: 15
Product - id: 1 | name: Product A Update | value: 400.0 | amount: 30

EXAMPLE 2

PEOPLE SEQUENCER - PostgreSQL

CREATE SEQUENCE public.people_sequence
    INCREMENT 1
    START 1
    MINVALUE 1
    MAXVALUE 9223372036854775807
    CACHE 1;

PEOPLE TABLE - PostgreSQL

CREATE TABLE public.people (
    id bigint NOT NULL DEFAULT nextval('people_sequence'::regclass),
    name character varying COLLATE pg_catalog."default" NOT NULL,
    age bigint NOT NULL,    
    CONSTRAINT people_pkey PRIMARY KEY (id)
)

PEOPLE ENTITY - PERSISTENT CLASS

import com.github.tadeuespindolapalermo.easyjdbc.annotation.Identifier;
import com.github.tadeuespindolapalermo.easyjdbc.annotation.PersistentClass;

@PersistentClass
public class People {

    private Long id;

    private String name;

    private int age;

    public People() { }

    public People(String name, int age) {
	this.name = name;
	this.age = age;
    }

    @Identifier(autoIncrement = true)
    public Long getId() {
	return id;
    }

    public void setId(Long id) {
	this.id = id;
    }

    public String getName() {
	return name;
    }

    public void setName(String name) {
	this.name = name;
    }

    public int getAge() {
	return age;
    }

    public void setAge(int age) {
	this.age = age;
    }
}

OPERATIONS WITH THE PEOPLE ENTITY

  
import java.util.List;

import com.github.tadeuespindolapalermo.easyjdbc.connection.InfoConnection;
import com.github.tadeuespindolapalermo.easyjdbc.crud.CrudEntity;
import com.github.tadeuespindolapalermo.easyjdbc.enumeration.EnumDatabase;

import br.com.peopleregistration.model.People;

public class Main {

    public static void main(String[] args) throws Exception {

	toConnect();

	CrudEntity<People> crudEntity = new CrudEntity<>(People.class);

	crudEntity.save(createPeople("Tadeu", 35));
	crudEntity.save(createPeople("Joseph", 95));

	printPeople(crudEntity.getAll());
    }

    private static void toConnect() {
	InfoConnection.setDatabase(EnumDatabase.POSTGRE);
	InfoConnection.setNameDatabase("people-registration");
	InfoConnection.setUser("your-user-db");
	InfoConnection.setPassword("your-password-db");
    }

    private static People createPeople(String name, int age) {
	return new People(name, age);
    }
	
    private static void printPeople(List<People> peoples) {
	peoples.forEach(p -> System.out.println("Name: " + p.getName() + " - Age: " + p.getAge()));
    }
}

Output result:

14:38:31,597 INFO -> Connection successful!
Bank: POSTGRE
Database: people-registration
Name: Tadeu - Age: 35
Name: Joseph - Age: 95

EXAMPLE 3

PEOPLE SEQUENCER - PostgreSQL

CREATE SEQUENCE public.user_sequence
    INCREMENT 1
    START 1
    MINVALUE 1
    MAXVALUE 9223372036854775807
    CACHE 1;

USER TABLE - PostgreSQL

CREATE TABLE public.tb_user (
    id bigint NOT NULL DEFAULT nextval('user_sequence'::regclass),
    name character varying COLLATE pg_catalog."default" NOT NULL,
    email character varying COLLATE pg_catalog."default" NOT NULL,
    password character varying COLLATE pg_catalog."default" NOT NULL,
    phone character varying COLLATE pg_catalog."default" NOT NULL,
    children bigint NOT NULL,    
    CONSTRAINT user_pkey PRIMARY KEY (id)
)

OPERATIONS WITH THE USER TABLE

  
import java.util.HashMap;
import java.util.Map;

import com.github.tadeuespindolapalermo.easyjdbc.connection.InfoConnection;
import com.github.tadeuespindolapalermo.easyjdbc.crud.Crud;
import com.github.tadeuespindolapalermo.easyjdbc.enumeration.EnumDatabase;

public class Main {

    public static void main(String[] args) throws Exception {

	toConnect();

	Crud crud = new Crud();		
		
	crud.save(createColumnsAndValues(), "tb_user");	
	crud.save(createColumnsAndValues(), "tb_user");	
	crud.save(createColumnsAndValues(), "tb_user");	
	crud.update(updateColumnsAndValues(), clauseColumnAndValue(), "tb_user");
	crud.delete("tb_user", "id", 3);
    }

    private static void toConnect() {
	InfoConnection.setDatabase(EnumDatabase.POSTGRE);
	InfoConnection.setNameDatabase("user-registration");
	InfoConnection.setUser("your-user-db");
	InfoConnection.setPassword("your-password-db");
    }

    private static Map<String, Object> createColumnsAndValues() {
	Map<String, Object> columnsAndValues = new HashMap<>();		
	columnsAndValues.put("name", "User Pool");
	columnsAndValues.put("email", "user@user.com");
	columnsAndValues.put("password", "123");
	columnsAndValues.put("phone", "96521456");
	columnsAndValues.put("children", 3);				
	return columnsAndValues;
    }
	
    private static Map<String, Object> clauseColumnAndValue() {
        Map<String, Object> columnsAndValues = new HashMap<>();		
	columnsAndValues.put("id", 2);					
	return columnsAndValues;
    }
	
    private static Map<String, Object> updateColumnsAndValues() {
	Map<String, Object> columnsAndValues = new HashMap<>();		
	columnsAndValues.put("name", "User Pool Update");
	columnsAndValues.put("email", "userupdate@userupdate.com");
	columnsAndValues.put("password", "123update");
	columnsAndValues.put("phone", "96521456000");
	columnsAndValues.put("children", 6);				
	return columnsAndValues;
    }   
}

Output result:

20:00:35,570 INFO -> Connection successful!
Bank: POSTGRE
Database: user-registration