spring-boot

Spring Boot

Branch: main

Phillip Webb 55eba139ec Support binding of default properties when an empty property is defined Update the `Binder` so that empty properties are treated as an indicator that default value binding should be attempted. This update allow bound objects to differentiate between a completely missing property vs one that is present but doesn't have any values. For example, given the following value object: @ConfigurationProperties("my") public record My(Name name, int age) { public record Name(String first, String last) { } } The following binding scenarios are supported: 1) Full binding my.name.first=Spring my.name.last=Boot my.age=4 Binds to `new My(new Name("Spring", "Boot"), 4)` (works the same as Spring Boot 4.0) 2) Missing Properties my.age=4 Binds to `new My(null, 4)` (works the same as Spring Boot 4.0) 3) Default Properties my.name= my.age=4 Binds to `new My(new Name(null, null), 4)` (previously would throw a converter exception) Closes gh-48920	11 hours ago
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spring-boot-actuator-docs	Merge branch '4.0.x'	1 week ago
spring-boot-docs	Support binding of default properties when an empty property is defined	11 hours ago

Phillip Webb 55eba139ec Support binding of default properties when an empty property is defined

Update the `Binder` so that empty properties are treated as an indicator
that default value binding should be attempted. This update allow bound
objects to differentiate between a completely missing property vs one
that is present but doesn't have any values.

For example, given the following value object:

	@ConfigurationProperties("my")
	public record My(Name name, int age) {

		public record Name(String first, String last) {
		}

	}

The following binding scenarios are supported:

1) Full binding

	my.name.first=Spring
	my.name.last=Boot
	my.age=4

Binds to `new My(new Name("Spring", "Boot"), 4)`
(works the same as Spring Boot 4.0)

2) Missing Properties

	my.age=4

Binds to `new My(null, 4)`
(works the same as Spring Boot 4.0)

3) Default Properties

	my.name=
	my.age=4

Binds to `new My(new Name(null, null), 4)`
(previously would throw a converter exception)

Closes gh-48920

11 hours ago

spring-boot-actuator-docs

Merge branch '4.0.x'

1 week ago

spring-boot-docs

Support binding of default properties when an empty property is defined

11 hours ago