org.gradle.internal.service

Class DefaultServiceRegistry

java.lang.Object

org.gradle.internal.service.DefaultServiceRegistry

All Implemented Interfaces:

ServiceRegistry

Direct Known Subclasses:

DaemonClientServicesSupport, DaemonRegistryServices, DaemonServices, DefaultDependencyManagementServices, GlobalServicesRegistry, GradleInternalServiceRegistry, LoggingServiceRegistry, MessagingServices, NativeServices, ProjectInternalServiceRegistry, TaskExecutionServices, TaskInternalServiceRegistry, TopLevelBuildServiceRegistry

public class DefaultServiceRegistry
extends Object
implements ServiceRegistry

A hierarchical ServiceRegistry implementation.

Subclasses can register services by:

Calling add(Class, Object) to register a service instance. Calling add(ServiceRegistry) to register a set of services. Adding a factory method. A factory method should have a name that starts with 'create', take no parameters, and have a non-void return type. For example, protected SomeService createSomeService() { .... }. Adding a decorator method. A decorator method should have a name that starts with 'decorate', take a single parameter, and a have a non-void return type. The before invoking the method, the parameter is located in the parent service registry and then passed to the method.

Service instances are created on demand. getFactory(Class) looks for a service instance which implements Factory<T> where T is the expected type.

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Service registries are arranged in a hierarchy. If a service of a given type cannot be located, the registry uses its parent registry, if any, to locate the service.