Liquibase - How to run a Java code changeset using SQL Format?

Question

With Liquibase XML you can trigger Java code to execute for a change with:

    <customChange class="my.java.Class">
        <param name="id" value="2" />
    </customChange>

How can you trigger a custom change with Liquibase SQL Format?

Answer 1

TL;DR You can't.

The supported formats for defining a custom change set are:

1. XML

<changeSet id="21" author="nvoxland">
  <customChange class="liquibase.change.custom.ExampleCustomTaskChange">
    <param name="helloTo" value="world"/>
  </customChange>
</changeSet>

2. YAML

-  changeSet:
     id:  21
     author: nvoxland
     changes:
     -  customChange:  {
"class": "liquibase.change.custom.ExampleCustomTaskChange",
"helloTo": "world" }

3. JSON

{
  "changeSet": {
    "id": "21",
    "author": "nvoxland",
    "changes": [
      {
        "customChange": {
          "class": "liquibase.change.custom.ExampleCustomTaskChange",
          "helloTo": "world"
        }
      }
    ]
  }
}

Based on https://docs.liquibase.com/change-types/custom-change.html