java.lang.Object
- java.lang.module.ModuleDescriptor.Builder

Enclosing class:

ModuleDescriptor
```
public static final class ModuleDescriptor.Builder
extends Object
```
A builder for building ModuleDescriptor objects.
ModuleDescriptor defines the newModule, newOpenModule, and newAutomaticModule methods to create builders for building normal, open, and automatic modules.

The set of packages in the module are accumulated by the Builder as the exports, opens, packages, provides, and mainClass methods are invoked.

The module names, package names, and class names that are parameters specified to the builder methods are the module names, package names, and qualified names of classes (in named packages) as defined in the The Java™ Language Specification.

Example usage:
```
   ModuleDescriptor descriptor = ModuleDescriptor.newModule("stats.core")
         .requires("java.base")
         .exports("org.acme.stats.core.clustering")
         .exports("org.acme.stats.core.regression")
         .packages(Set.of("org.acme.stats.core.internal"))
         .build();
 
```
API Note:

A Builder checks the components and invariants as components are added to the builder. The rationale for this is to detect errors as early as possible and not defer all validation to the build method.

Since:

9

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ModuleDescriptor`	`build()`	Builds and returns a `ModuleDescriptor` from its components.
`ModuleDescriptor.Builder`	`exports(ModuleDescriptor.Exports e)`	Adds an exported package.
`ModuleDescriptor.Builder`	`exports(String pn)`	Adds an exported package.
`ModuleDescriptor.Builder`	`exports(String pn, Set<String> targets)`	Adds an exported package.
`ModuleDescriptor.Builder`	`exports(Set<ModuleDescriptor.Exports.Modifier> ms, String pn)`	Adds an exported package with the given (and possibly empty) set of modifiers.
`ModuleDescriptor.Builder`	`exports(Set<ModuleDescriptor.Exports.Modifier> ms, String pn, Set<String> targets)`	Adds an exported package with the given (and possibly empty) set of modifiers.
`ModuleDescriptor.Builder`	`mainClass(String mc)`	Sets the module main class.
`ModuleDescriptor.Builder`	`opens(ModuleDescriptor.Opens obj)`	Adds an open package.
`ModuleDescriptor.Builder`	`opens(String pn)`	Adds an open package.
`ModuleDescriptor.Builder`	`opens(String pn, Set<String> targets)`	Adds an open package.
`ModuleDescriptor.Builder`	`opens(Set<ModuleDescriptor.Opens.Modifier> ms, String pn)`	Adds an open package with the given (and possibly empty) set of modifiers.
`ModuleDescriptor.Builder`	`opens(Set<ModuleDescriptor.Opens.Modifier> ms, String pn, Set<String> targets)`	Adds an open package with the given (and possibly empty) set of modifiers.
`ModuleDescriptor.Builder`	`packages(Set<String> pns)`	Adds packages to the module.
`ModuleDescriptor.Builder`	`provides(ModuleDescriptor.Provides p)`	Provides a service with one or more implementations.
`ModuleDescriptor.Builder`	`provides(String service, List<String> providers)`	Provides implementations of a service.
`ModuleDescriptor.Builder`	`requires(ModuleDescriptor.Requires req)`	Adds a dependence on a module.
`ModuleDescriptor.Builder`	`requires(String mn)`	Adds a dependence on a module with an empty set of modifiers.

Class ModuleDescriptor.Builder

Method Summary