Module io.helidon.service.codegen

Package io.helidon.service.codegen

Class HelidonMetaInfServices

java.lang.Object

io.helidon.service.codegen.HelidonMetaInfServices

public class HelidonMetaInfServices
extends Object

Support for reading and writing Helidon services to the resource.

Helidon replacement for Java ServiceLoader. Each service annotated with appropriate annotation (ServiceCodegenTypes.SERVICE_ANNOTATION_PROVIDER) will have a service descriptor generated at build time.

The service descriptor is then discoverable at runtime through our own resource in "META-INF/helidon/service-registry.json".

Method Summary

Modifier and Type	Method	Description
void	add(DescriptorMetadata service)	Add a single descriptors to the file.
void	addAll(Collection<DescriptorMetadata> services)	Add all descriptors to the file.
static HelidonMetaInfServices	create(CodegenFiler filer, String moduleName)	Create new instance from the current filer.
void	write()	Write the file to output.

Methods inherited from class java.lang.Object

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

Method Details

create

public static HelidonMetaInfServices create(CodegenFiler filer,
 String moduleName)

Create new instance from the current filer.

Parameters:

filer - filer to find the file, and to write it

moduleName - module that is being built

Returns:

a new instance of the service metadata manager

addAll

public void addAll(Collection<DescriptorMetadata> services)

Add all descriptors to the file. This never produces duplicate records. Descriptor type name is always unique within a file.

Parameters:

services - service descriptor metadata to add

add

public void add(DescriptorMetadata service)

Add a single descriptors to the file. This never produces duplicate records. Descriptor type name is always unique within a file.

Parameters:

service - service descriptor metadata to add

write

public void write()

Write the file to output.