Document @NestedConstructorBinding in all cases

This covers Kotlin data classes, constructor injection and records.

Closes gh-33235

spring-boot-project/spring-boot-docs/src/docs/asciidoc/native-image/advanced-topics.adoc

@@ -5,20 +5,36 @@
 
 [[native-image.advanced.nested-configuration-properties]]
 === Nested Configuration Properties
+
 Reflection hints are automatically created for configuration properties by the Spring ahead-of-time engine.
 Nested configuration properties which are no inner classes, however, *must* be annotated with `@NestedConfigurationProperty`, otherwise they won't be detected and will not be bindable.
 
 include::code:MyProperties[]
 
+where `Nested` is:
+
+include::code:Nested[]
+
 The example above produces configuration properties for `my.properties.name` and `my.properties.nested.number`.
 Without the `@NestedConfigurationProperty` annotation on the `nested` field, the `my.properties.nested.number` property would not be bindable in a native image.
 
-NOTE: Please use public getters and setters, otherwise the properties will not be bindable.
+When using constructor binding, you have to annotate the field with `@NestedConfigurationProperty`:
+
+include::code:MyPropertiesCtor[]
 
+When using records, you have to annotate the parameter with `@NestedConfigurationProperty`:
 
+include::code:MyPropertiesRecord[]
+
+When using Kotlin, you need to annotate the parameter of a data class with `@NestedConfigurationProperty`:
+
+include::code:MyPropertiesKotlin[]
+
+NOTE: Please use public getters and setters in all cases, otherwise the properties will not be bindable.
 
 [[native-image.advanced.converting-executable-jars]]
 === Converting a Spring Boot Executable Jar
+
 It is possible to convert a Spring Boot <<executable-jar#appendix.executable-jar, executable jar>> into a native image as long at the jar contains the AOT generated assets.
 This can be useful for a number of reasons, including:
 

spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/nativeimage/advanced/nestedconfigurationproperties/MyProperties.java

@@ -42,19 +42,3 @@ public Nested getNested() {
 	// @fold:off
 
 }
-
-class Nested {
-
-	private int number;
-
-	// @fold:on // getters / setters...
-	public int getNumber() {
-		return this.number;
-	}
-
-	public void setNumber(int number) {
-		this.number = number;
-	}
-	// @fold:off
-
-}

spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/nativeimage/advanced/nestedconfigurationproperties/MyPropertiesCtor.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2012-2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.docs.nativeimage.advanced.nestedconfigurationproperties;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.NestedConfigurationProperty;
+
+@ConfigurationProperties(prefix = "my.properties")
+public class MyPropertiesCtor {
+
+	private final String name;
+
+	@NestedConfigurationProperty
+	private final Nested nested;
+
+	public MyPropertiesCtor(String name, Nested nested) {
+		this.name = name;
+		this.nested = nested;
+	}
+
+	// @fold:on // getters / setters...
+	public String getName() {
+		return this.name;
+	}
+
+	public Nested getNested() {
+		return this.nested;
+	}
+	// @fold:off
+
+}

spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/nativeimage/advanced/nestedconfigurationproperties/MyPropertiesRecord.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2012-2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.docs.nativeimage.advanced.nestedconfigurationproperties;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.NestedConfigurationProperty;
+
+@ConfigurationProperties(prefix = "my.properties")
+public record MyPropertiesRecord(String name, @NestedConfigurationProperty Nested nested) {
+
+}

spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/nativeimage/advanced/nestedconfigurationproperties/Nested.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2012-2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.docs.nativeimage.advanced.nestedconfigurationproperties;
+
+public class Nested {
+
+	private int number;
+
+	// @fold:on // getters / setters...
+	public int getNumber() {
+		return this.number;
+	}
+
+	public void setNumber(int number) {
+		this.number = number;
+	}
+	// @fold:off
+
+}

spring-boot-project/spring-boot-docs/src/main/kotlin/org/springframework/boot/docs/nativeimage/advanced/nestedconfigurationproperties/MyPropertiesKotlin.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2012-2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.docs.nativeimage.advanced.nestedconfigurationproperties
+
+import org.springframework.boot.context.properties.ConfigurationProperties
+import org.springframework.boot.context.properties.NestedConfigurationProperty
+
+@ConfigurationProperties(prefix = "my.properties")
+data class MyPropertiesKotlin(
+	val name: String,
+	@NestedConfigurationProperty val nested: Nested
+)