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deleteAll() Method Overview
Maven Dependencies
Add the following maven dependencies to your Spring Boot project: <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
<scope>runtime</scope>
</dependency>
Product Entity
package net.javaguides.springdatajpacourse.entity;
import org.hibernate.annotations.CreationTimestamp;
import org.hibernate.annotations.UpdateTimestamp;
import jakarta.persistence.*;
import java.math.BigDecimal;
import java.util.Date;
@Entity
@Table(name="products")
public class Product {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id")
private Long id;
@Column(name = "sku")
private String sku;
@Column(name = "name")
private String name;
@Column(name = "description")
private String description;
@Column(name = "price")
private BigDecimal price;
@Column(name = "image_url")
private String imageUrl;
@Column(name = "active")
private boolean active;
@Column(name = "date_created")
@CreationTimestamp
private Date dateCreated;
@Column(name = "last_updated")
@UpdateTimestamp
private Date lastUpdated;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getSku() {
return sku;
}
public void setSku(String sku) {
this.sku = sku;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public BigDecimal getPrice() {
return price;
}
public void setPrice(BigDecimal price) {
this.price = price;
}
public String getImageUrl() {
return imageUrl;
}
public void setImageUrl(String imageUrl) {
this.imageUrl = imageUrl;
}
public boolean isActive() {
return active;
}
public void setActive(boolean active) {
this.active = active;
}
public Date getDateCreated() {
return dateCreated;
}
public void setDateCreated(Date dateCreated) {
this.dateCreated = dateCreated;
}
public Date getLastUpdated() {
return lastUpdated;
}
public void setLastUpdated(Date lastUpdated) {
this.lastUpdated = lastUpdated;
}
@Override
public String toString() {
return "Product{" +
"id=" + id +
", sku='" + sku + '\'' +
", name='" + name + '\'' +
", description='" + description + '\'' +
", price=" + price +
", imageUrl='" + imageUrl + '\'' +
", active=" + active +
", dateCreated=" + dateCreated +
", lastUpdated=" + lastUpdated +
'}';
}
}
ProductRepository
import net.javaguides.springdatajpacourse.entity.Product;
import org.springframework.data.repository.CrudRepository;
public interface ProductRepository extends CrudRepository<Product, Long> {
}
Configure MySQL and Hibernate Properties
spring.datasource.url=jdbc:mysql://localhost:3306/ecommerce?useSSL=false
spring.datasource.username=root
spring.datasource.password=Mysql@123
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQLDialect
spring.jpa.hibernate.ddl-auto = create-drop
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.format_sql=true
Testing deleteAll() Method
import net.javaguides.springdatajpacourse.entity.Product;
import net.javaguides.springdatajpacourse.repository.ProductRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import java.math.BigDecimal;
import java.util.Date;
@SpringBootApplication
public class SpringDataJpaCourseApplication implements CommandLineRunner{
public static void main(String[] args) throws Exception {
SpringApplication.run(SpringDataJpaCourseApplication.class, args);
}
@Autowired
private ProductRepository productRepository;
@Override
public void run(String... args) throws Exception {
Product product = new Product();
product.setName("product 1");
product.setDescription("product 1 desc");
product.setPrice(new BigDecimal(100));
product.setDateCreated(new Date());
product.setLastUpdated(new Date());
product.setSku("product 1 sku");
product.setActive(true);
product.setImageUrl("product1.png");
productRepository.save(product);
Product product2 = new Product();
product2.setName("product 2");
product2.setDescription("product 2 desc");
product2.setPrice(new BigDecimal(200));
product2.setDateCreated(new Date());
product2.setLastUpdated(new Date());
product2.setSku("product 2 sku");
product2.setActive(true);
product2.setImageUrl("product2.png");
productRepository.save(product2);
// DELETE ALL PRODUCTS
productRepository.deleteAll();
}
}
Hibernate:
insert
into
products
(active, date_created, description, image_url, last_updated, name, price, sku)
values
(?, ?, ?, ?, ?, ?, ?, ?)
Hibernate:
insert
into
products
(active, date_created, description, image_url, last_updated, name, price, sku)
values
(?, ?, ?, ?, ?, ?, ?, ?)
Hibernate:
select
product0_.id as id1_0_,
product0_.active as active2_0_,
product0_.date_created as date_cre3_0_,
product0_.description as descript4_0_,
product0_.image_url as image_ur5_0_,
product0_.last_updated as last_upd6_0_,
product0_.name as name7_0_,
product0_.price as price8_0_,
product0_.sku as sku9_0_
from
products product0_
Hibernate:
delete
from
products
where
id=?
Hibernate:
delete
from
products
where
id=?
Hibernate:
insert
into
products
(active, date_created, description, image_url, last_updated, name, price, sku)
values
(?, ?, ?, ?, ?, ?, ?, ?)
Hibernate:
insert
into
products
(active, date_created, description, image_url, last_updated, name, price, sku)
values
(?, ?, ?, ?, ?, ?, ?, ?)
Hibernate:
delete
from
products
where
id=?
Hibernate:
delete
from
products
where
id=?
Related Spring Data CrudRepository Tutorials
- Spring Data CrudRepository - save() Method
- Spring Data CrudRepository - saveAll() Method
- Spring Data CrudRepository - findById() Method
- Spring Data CrudRepository - findAll() Method
- Spring Data CrudRepository - deleteById() Method
- Spring Data CrudRepository - delete() Method
- Spring Data CrudRepository - deleteAll() Method
- Spring Data CrudRepository - existsById() Method
- Spring Data CrudRepository - count() Method
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