Interface Configurable<C extends Configurable>
-
- Type Parameters:
C
- generic configurable Java type
- All Known Subinterfaces:
Client
,FeatureContext
,WebTarget
- All Known Implementing Classes:
ClientBuilder
public interface Configurable<C extends Configurable>
Represents a client or server-side configurable context in JAX-RS. A configurable context can be used to define the JAX-RS components as well as additional meta-data that should be used in the scope of the configured context. The modification of the context typically involves setting properties or registering custom JAX-RS components, such as providers and/or features. All modifications of aConfigurable
context are reflected in the associatedConfiguration
state which is exposed viagetConfiguration()
method.A configurable context can be either indirectly associated with a particular JAX-RS component (such as application or resource method configurable context passed to a
Feature
orDynamicFeature
meta-providers) or can be directly represented by a concrete JAX-RS component implementing theConfigurable
interface (such asClient
orWebTarget
). As such, the exact scope of a configuration context is typically determined by a use case scenario in which the context is accessed.Setting properties.
New properties can be set using the
property(java.lang.String, java.lang.Object)
method. Similarly, updating a value of an existing property can be achieved using the same method. Information about the configured set of properties is available via the underlyingConfiguration
object. An existing property can be removed by assigning anull
value to the property.Registering JAX-RS components.
Registered custom JAX-RS component classes and instances are important part of the contextual configuration information as these are the main factors that determine the capabilities of a configured runtime. Implementations SHOULD warn about and ignore registrations that do not conform to the requirements of supported JAX-RS components in a given configurable context.
In most cases, when registering a JAX-RS component, the simplest form of methods (
register(Class)
orregister(Object)
) of the available registration API is sufficient.For example:
config.register(HtmlDocumentReader.class); config.register(new HtmlDocumentWriter(writerConfig));
In some situations a JAX-RS component class or instance may implement multiple provider contracts recognized by a JAX-RS implementation (e.g. filter, interceptor or entity provider). By default, the JAX-RS implementation MUST register the new component class or instance as a provider for all the recognized provider contracts implemented by the component class.
For example:
@Priority(ENTITY_CODER) public class GzipInterceptor implements ReaderInterceptor, WriterInterceptor { ... } ... // register GzipInterceptor as a ReaderInterceptor // as well as a WriterInterceptor config.register(GzipInterceptor.class);
There are however situations when the default registration of a JAX-RS component to all the recognized provider contracts is not desirable. In such cases users may use other versions of the
register(...)
method to explicitly specify the collection of the provider contracts for which the JAX-RS component should be registered and/or the priority of each registered provider contract.For example:
@Priority(USER) public class ClientLoggingFilter implements ClientRequestFilter, ClientResponseFilter { ... } @Priority(ENTITY_CODER) public class GzipInterceptor implements ReaderInterceptor, WriterInterceptor { ... } ... // register ClientLoggingFilter as a ClientResponseFilter only config.register(ClientLoggingFilter.class, ClientResponseFilter.class); // override the priority of registered GzipInterceptor // and both of it's provider contracts config.register(GzipInterceptor.class, 6500);
As a general rule, for each JAX-RS component class there can be at most one registration — class-based or instance-based — configured at any given moment. Implementations MUST reject any attempts to configure a new registration for a provider class that has been already registered in the given configurable context earlier. Implementations SHOULD also raise a warning to inform the user about the rejected component registration.
For example:
config.register(GzipInterceptor.class, WriterInterceptor.class); config.register(GzipInterceptor.class); // Rejected by runtime. config.register(new GzipInterceptor()); // Rejected by runtime. config.register(GzipInterceptor.class, 6500); // Rejected by runtime. config.register(new ClientLoggingFilter()); config.register(ClientLoggingFilter.class); // rejected by runtime. config.register(ClientLoggingFilter.class, ClientResponseFilter.class); // Rejected by runtime.
- Since:
- 2.0
- Author:
- Marek Potociar
-
-
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Configuration
getConfiguration()
Get a live view of an internal configuration state of this configurable instance.C
property(String name, Object value)
Set the new configuration property, if already set, the existing value of the property will be updated.C
register(Class<?> componentClass)
Register a class of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.C
register(Class<?> componentClass, int priority)
Register a class of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.C
register(Class<?> componentClass, Class<?>... contracts)
Register a class of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.C
register(Class<?> componentClass, Map<Class<?>,Integer> contracts)
Register a class of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.C
register(Object component)
Register an instance of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.C
register(Object component, int priority)
Register an instance of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.C
register(Object component, Class<?>... contracts)
Register an instance of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.C
register(Object component, Map<Class<?>,Integer> contracts)
Register an instance of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.
-
-
-
Method Detail
-
getConfiguration
Configuration getConfiguration()
Get a live view of an internal configuration state of this configurable instance. Any changes made using methods of thisConfigurable
instance will be reflected in the returnedConfiguration
instance.The returned
Configuration
instance and the collection data it provides are not thread-safe wrt. modification made using methods on the parent configurable object.- Returns:
- configuration live view of the internal configuration state.
-
property
C property(String name, Object value)
Set the new configuration property, if already set, the existing value of the property will be updated. Setting anull
value into a property effectively removes the property from the property bag.- Parameters:
name
- property name.value
- (new) property value.null
value removes the property with the given name.- Returns:
- the updated configurable instance.
-
register
C register(Class<?> componentClass)
Register a class of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context. Implementations SHOULD warn about and ignore registrations that do not conform to the requirements of supported JAX-RS component types in the given configurable context. Any subsequent registration attempts for a component type, for which a class or instance-based registration already exists in the system MUST be rejected by the JAX-RS implementation and a warning SHOULD be raised to inform the user about the rejected registration. The registered JAX-RS component class is registered as a contract provider of all the recognized JAX-RS or implementation-specific extension contracts including meta-provider contracts, such asFeature
orDynamicFeature
.As opposed to component instances registered via
register(Object)
method, the lifecycle of components registered using this class-basedregister(...)
method is fully managed by the JAX-RS implementation or any underlying IoC container supported by the implementation.- Parameters:
componentClass
- JAX-RS component class to be configured in the scope of this configurable context.- Returns:
- the updated configurable context.
-
register
C register(Class<?> componentClass, int priority)
Register a class of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.This registration method provides the same functionality as
register(Class)
except that any priority specified on the registered JAX-RS component class viajakarta.annotation.Priority
annotation is overridden with the suppliedpriority
value.Note that in case the priority is not applicable to a particular provider contract implemented by the class of the registered component, the supplied
priority
value will be ignored for that contract.- Parameters:
componentClass
- JAX-RS component class to be configured in the scope of this configurable context.priority
- the overriding priority for the registered component and all the provider contracts the component implements.- Returns:
- the updated configurable context.
-
register
C register(Class<?> componentClass, Class<?>... contracts)
Register a class of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.This registration method provides the same functionality as
register(Class)
except the JAX-RS component class is only registered as a provider of the listed extension provider or meta-providercontracts
. All explicitly enumerated contract types must represent a class or an interface implemented or extended by the registered component. Contracts that are notassignable from
the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s).- Parameters:
componentClass
- JAX-RS component class to be configured in the scope of this configurable context.contracts
- the specific extension provider or meta-provider contracts implemented by the component for which the component should be registered. Implementations MUST ignore attempts to register a component class for an empty ornull
collection of contracts via this method and SHOULD raise a warning about such event.- Returns:
- the updated configurable context.
-
register
C register(Class<?> componentClass, Map<Class<?>,Integer> contracts)
Register a class of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.This registration method provides same functionality as
register(Class, Class[])
except that any priority specified on the registered JAX-RS component class viajakarta.annotation.Priority
annotation is overridden for each extension provider contract type separately with an integer priority value specified as a value in the supplied map of [contract type, priority] pairs.Note that in case a priority is not applicable to a provider contract registered for the JAX-RS component, the supplied priority value is ignored for such contract.
- Parameters:
componentClass
- JAX-RS component class to be configured in the scope of this configurable context.contracts
- map of the specific extension provider and meta-provider contracts and their associated priorities for which the JAX-RS component is registered. All contracts in the map must represent a class or an interface implemented or extended by the JAX-RS component. Contracts that are notassignable from
the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s).- Returns:
- the updated configurable context.
-
register
C register(Object component)
Register an instance of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context. Implementations SHOULD warn about and ignore registrations that do not conform to the requirements of supported JAX-RS component types in the given configurable context. Any subsequent registration attempts for a component type, for which a class or instance-based registration already exists in the system MUST be rejected by the JAX-RS implementation and a warning SHOULD be raised to inform the user about the rejected registration. The registered JAX-RS component is registered as a contract provider of all the recognized JAX-RS or implementation-specific extension contracts including meta-provider contracts, such asFeature
orDynamicFeature
.As opposed to components registered via
register(Class)
method, the lifecycle of providers registered using this instance-basedregister(...)
is not managed by JAX-RS runtime. The same registered component instance is used during the whole lifespan of the configurable context. Fields and properties of all registered JAX-RS component instances are injected with their declared dependencies (seeContext
) by the JAX-RS runtime prior to use.- Parameters:
component
- JAX-RS component instance to be configured in the scope of this configurable context.- Returns:
- the updated configurable context.
-
register
C register(Object component, int priority)
Register an instance of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.This registration method provides the same functionality as
register(Object)
except that any priority specified on the registered JAX-RS component class viajakarta.annotation.Priority
annotation is overridden with the suppliedpriority
value.Note that in case the priority is not applicable to a particular provider contract implemented by the class of the registered component, the supplied
priority
value will be ignored for that contract.- Parameters:
component
- JAX-RS component instance to be configured in the scope of this configurable context.priority
- the overriding priority for the registered component and all the provider contracts the component implements.- Returns:
- the updated configurable context.
-
register
C register(Object component, Class<?>... contracts)
Register an instance of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.This registration method provides the same functionality as
register(Object)
except the JAX-RS component class is only registered as a provider of the listed extension provider or meta-providercontracts
. All explicitly enumerated contract types must represent a class or an interface implemented or extended by the registered component. Contracts that are notassignable from
the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s).- Parameters:
component
- JAX-RS component instance to be configured in the scope of this configurable context.contracts
- the specific extension provider or meta-provider contracts implemented by the component for which the component should be registered. Implementations MUST ignore attempts to register a component class for an empty ornull
collection of contracts via this method and SHOULD raise a warning about such event.- Returns:
- the updated configurable context.
-
register
C register(Object component, Map<Class<?>,Integer> contracts)
Register an instance of a custom JAX-RS component (such as an extension provider or afeature
meta-provider) to be instantiated and used in the scope of this configurable context.This registration method provides same functionality as
register(Object, Class[])
except that any priority specified on the registered JAX-RS component class viajakarta.annotation.Priority
annotation is overridden for each extension provider contract type separately with an integer priority value specified as a value in the supplied map of [contract type, priority] pairs.Note that in case a priority is not applicable to a provider contract registered for the JAX-RS component, the supplied priority value is ignored for such contract.
- Parameters:
component
- JAX-RS component instance to be configured in the scope of this configurable context.contracts
- map of the specific extension provider and meta-provider contracts and their associated priorities for which the JAX-RS component is registered. All contracts in the map must represent a class or an interface implemented or extended by the JAX-RS component. Contracts that are notassignable from
the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s).- Returns:
- the updated configurable context.
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