In the Spring Boot, Spring Data JPA project, I have an entity class named Country with few columns. I generated changelog and applied it with the following commands
$ mvn process-test-resources
$ mvn process-resources
It created tables using liquibase and liquibase-hibernate5 plugins
Country.java
package com.liquibasedemo.model;
import com.fasterxml.jackson.annotation.JsonIgnore;
import lombok.Data;
import javax.persistence.*;
@Entity
@Table(name = "country")
@Data
public class Country
{
@Id
@Column(name = "id")
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(name = "name")
private String name;
@Column(name = "code")
private String code;
@Column(name = "iso_code")
private String isoCode;
@Column(name = "test_code")
private String testCode;
@ManyToOne
@JoinColumn(name = "region_id")
@JsonIgnore
private Region region;
}
I updated testCode
column data type from Long to String in Country class and used the above commands to generate changeset. After applying changeset, the datatype remains unchanged. Here is the pom.xml file
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com</groupId>
<artifactId>liquibasedemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>liquibasedemo</name>
<description>Liquibase Demo project with Spring Boot and Spring Data</description>
<properties>
<spring-boot.version>2.1.5.RELEASE</spring-boot.version>
<hibernate.version>5.4.3.Final</hibernate.version>
<liquibase-maven-plugin.version>3.5.5</liquibase-maven-plugin.version>
<liquibase-hibernate5.version>3.6</liquibase-hibernate5.version>
<validation-api.version>2.0.1.Final</validation-api.version>
<javassist.version>3.24.0-GA</javassist.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-envers</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-core</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>${liquibase-maven-plugin.version}</version>
<configuration>
<propertyFile>src/main/resources/liquibase.properties</propertyFile>
<changeLogFile>src/main/resources/db/db.changelog-master.xml</changeLogFile>
<diffChangeLogFile>src/main/resources/db/changelog/${maven.build.timestamp}_changelog.xml</diffChangeLogFile>
<logging>info</logging>
</configuration>
<executions>
<execution>
<id>update-profile</id>
<phase>process-resources</phase>
<goals>
<goal>update</goal>
</goals>
</execution>
<execution>
<id>diff-profile</id>
<phase>process-test-resources</phase>
<goals>
<goal>diff</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.liquibase.ext</groupId>
<artifactId>liquibase-hibernate5</artifactId>
<version>${liquibase-hibernate5.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>${spring-boot.version}</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>${validation-api.version}</version>
</dependency>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>${javassist.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>