Package org.springframework.beans.factory.aot

Class InstanceSupplierCodeGenerator

java.lang.Object

org.springframework.beans.factory.aot.InstanceSupplierCodeGenerator

public class InstanceSupplierCodeGenerator
extends Object

Default code generator to create an InstanceSupplier, usually in the form of a BeanInstanceSupplier that retains the executable that is used to instantiate the bean. Takes care of registering the necessary hints if reflection or a JDK proxy is required.

Generated code is usually a method reference that generates the BeanInstanceSupplier, but some shortcut can be used as well such as:

 InstanceSupplier.of(TheGeneratedClass::getMyBeanInstance);
 

Since:

6.0

Author:

Phillip Webb, Stephane Nicoll, Juergen Hoeller, Sebastien Deleuze

See Also:

• BeanRegistrationCodeFragments

Constructor Summary

Constructors

Constructor	Description
InstanceSupplierCodeGenerator(GenerationContext generationContext, org.springframework.javapoet.ClassName className, GeneratedMethods generatedMethods, boolean allowDirectSupplierShortcut)	Create a new generator instance.

Method Summary

Modifier and Type	Method	Description
org.springframework.javapoet.CodeBlock	generateCode(RegisteredBean registeredBean, Executable constructorOrFactoryMethod)	Deprecated. in favor of generateCode(RegisteredBean, InstantiationDescriptor)
org.springframework.javapoet.CodeBlock	generateCode(RegisteredBean registeredBean, RegisteredBean.InstantiationDescriptor instantiationDescriptor)	Generate the instance supplier code.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

InstanceSupplierCodeGenerator

public InstanceSupplierCodeGenerator(GenerationContext generationContext,
 org.springframework.javapoet.ClassName className,
 GeneratedMethods generatedMethods,
 boolean allowDirectSupplierShortcut)

Create a new generator instance.

Parameters:

generationContext - the generation context

className - the class name of the bean to instantiate

generatedMethods - the generated methods

allowDirectSupplierShortcut - whether a direct supplier may be used rather than always needing an InstanceSupplier

Method Details

generateCode

@Deprecated(since="6.1.7")
public org.springframework.javapoet.CodeBlock generateCode(RegisteredBean registeredBean,
 Executable constructorOrFactoryMethod)

Deprecated.

in favor of generateCode(RegisteredBean, InstantiationDescriptor)

Generate the instance supplier code.

Parameters:

registeredBean - the bean to handle

constructorOrFactoryMethod - the executable to use to create the bean

Returns:

the generated code

generateCode

public org.springframework.javapoet.CodeBlock generateCode(RegisteredBean registeredBean,
 RegisteredBean.InstantiationDescriptor instantiationDescriptor)

Generate the instance supplier code.

Parameters:

registeredBean - the bean to handle

instantiationDescriptor - the executable to use to create the bean

Returns:

the generated code

Since:

6.1.7