JavaEE API 8.0.1 · javax.ws.rs.core.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 a Configurable context are reflected in the associated Configuration state which is exposed via getConfiguration() 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 or javax.ws.rs.container.DynamicFeature meta-providers) or can be directly represented by a concrete JAX-RS component implementing the Configurable interface (such as javax.ws.rs.client.Client or javax.ws.rs.client.WebTarget). 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 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 underlying Configuration object. An existing property can be removed by assigning a null 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) or register(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.

Method Summary

Modifier and Type	Method and Description
public Configuration	Returns: configuration live view of the internal configuration state. getConfiguration() Get a live view of an internal configuration state of this configurable instance.
public C	Returns: the updated configurable instance. property(String property name. name, Object (new) property value. `null` value removes the property with the given name. value) Set the new configuration property, if already set, the existing value of the property will be updated.
public C	Returns: the updated configurable context. register(Class<?> JAX-RS component class to be configured in the scope of this configurable context. componentClass) Register a class of a custom JAX-RS component (such as an extension provider or a `feature` meta-provider) to be instantiated and used in the scope of this configurable context.
public C	Returns: the updated configurable context. register(Class<?> JAX-RS component class to be configured in the scope of this configurable context. componentClass, int the overriding priority for the registered component and all the provider contracts the component implements. priority) Register a class of a custom JAX-RS component (such as an extension provider or a `feature` meta-provider) to be instantiated and used in the scope of this configurable context.
public C	Returns: the updated configurable context. register(Class<?> JAX-RS component class to be configured in the scope of this configurable context. componentClass, Class<?>... 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 or `null` collection of contracts via this method and SHOULD raise a warning about such event. contracts) Register a class of a custom JAX-RS component (such as an extension provider or a `feature` meta-provider) to be instantiated and used in the scope of this configurable context.
public C	Returns: the updated configurable context. register(Class<?> JAX-RS component class to be configured in the scope of this configurable context. componentClass, Map<Class<?>, Integer> 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 not `assignable from` the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s). contracts) Register a class of a custom JAX-RS component (such as an extension provider or a `feature` meta-provider) to be instantiated and used in the scope of this configurable context.
public C	Returns: the updated configurable context. register(Object JAX-RS component instance to be configured in the scope of this configurable context. component) Register an instance of a custom JAX-RS component (such as an extension provider or a `feature` meta-provider) to be instantiated and used in the scope of this configurable context.
public C	Returns: the updated configurable context. register(Object JAX-RS component instance to be configured in the scope of this configurable context. component, int the overriding priority for the registered component and all the provider contracts the component implements. priority) Register an instance of a custom JAX-RS component (such as an extension provider or a `feature` meta-provider) to be instantiated and used in the scope of this configurable context.
public C	Returns: the updated configurable context. register(Object JAX-RS component instance to be configured in the scope of this configurable context. component, Class<?>... 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 or `null` collection of contracts via this method and SHOULD raise a warning about such event. contracts) Register an instance of a custom JAX-RS component (such as an extension provider or a `feature` meta-provider) to be instantiated and used in the scope of this configurable context.
public C	Returns: the updated configurable context. register(Object JAX-RS component instance to be configured in the scope of this configurable context. component, Map<Class<?>, Integer> 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 not `assignable from` the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s). contracts) Register an instance of a custom JAX-RS component (such as an extension provider or a `feature` meta-provider) to be instantiated and used in the scope of this configurable context.

Method Detail

getConfiguration back to summary

getConfiguration	back to summary
public Configuration getConfiguration() Get a live view of an internal configuration state of this configurable instance. Any changes made using methods of this `Configurable` instance will be reflected in the returned `Configuration` 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 configuration live view of the internal configuration state.

public Configuration getConfiguration()

Get a live view of an internal configuration state of this configurable instance. Any changes made using methods of this Configurable instance will be reflected in the returned Configuration 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: configuration live view of the internal configuration state.

property back to summary

property	back to summary
public C property(String name, Object value) Set the new configuration property, if already set, the existing value of the property will be updated. Setting a `null` value into a property effectively removes the property from the property bag. Parameters name:String property name. value:Object (new) property value. `null` value removes the property with the given name. Returns:C the updated configurable instance.

public C property(String name, Object value)

Set the new configuration property, if already set, the existing value of the property will be updated. Setting a null value into a property effectively removes the property from the property bag.

Parameters

name:String: property name.
value:Object: (new) property value. null value removes the property with the given name.

Returns:C

the updated configurable instance.

register	back to summary
public C register(Class<?> componentClass) Register a class of a custom JAX-RS component (such as an extension provider or a `feature` 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 as `Feature` or `javax.ws.rs.container.DynamicFeature`. As opposed to component instances registered via `register(Object)` method, the lifecycle of components registered using this class-based `register(...)` method is fully managed by the JAX-RS implementation or any underlying IoC container supported by the implementation. Parameters componentClass:Class<?> JAX-RS component class to be configured in the scope of this configurable context. Returns:C the updated configurable context.

public C register(Class<?> componentClass)

Register a class of a custom JAX-RS component (such as an extension provider or a feature 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 as Feature or javax.ws.rs.container.DynamicFeature.

As opposed to component instances registered via register(Object) method, the lifecycle of components registered using this class-based register(...) method is fully managed by the JAX-RS implementation or any underlying IoC container supported by the implementation.

Parameters

componentClass:Class<?>: JAX-RS component class to be configured in the scope of this configurable context.

Returns:C

the updated configurable context.

register	back to summary
public C register(Class<?> componentClass, int priority) Register a class of a custom JAX-RS component (such as an extension provider or a `feature` 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 via `javax.annotation.Priority` annotation is overridden with the supplied `priority` 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:Class<?> JAX-RS component class to be configured in the scope of this configurable context. priority:int the overriding priority for the registered component and all the provider contracts the component implements. Returns:C the updated configurable context.

public C register(Class<?> componentClass, int priority)

Register a class of a custom JAX-RS component (such as an extension provider or a feature 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 via javax.annotation.Priority annotation is overridden with the supplied priority 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:Class<?>: JAX-RS component class to be configured in the scope of this configurable context.
priority:int: the overriding priority for the registered component and all the provider contracts the component implements.

Returns:C

the updated configurable context.

register	back to summary
public C register(Class<?> componentClass, Class<?>... contracts) Register a class of a custom JAX-RS component (such as an extension provider or a `feature` 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-provider `contracts`. All explicitly enumerated contract types must represent a class or an interface implemented or extended by the registered component. Contracts that are not `assignable from` the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s). Parameters componentClass:Class<?> JAX-RS component class to be configured in the scope of this configurable context. contracts:Class<?>[] 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 or `null` collection of contracts via this method and SHOULD raise a warning about such event. Returns:C the updated configurable context.

public C register(Class<?> componentClass, Class<?>... contracts)

Register a class of a custom JAX-RS component (such as an extension provider or a feature 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-provider contracts. All explicitly enumerated contract types must represent a class or an interface implemented or extended by the registered component. Contracts that are not assignable from the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s).

Parameters

componentClass:Class<?>: JAX-RS component class to be configured in the scope of this configurable context.
contracts:Class<?>[]: 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 or null collection of contracts via this method and SHOULD raise a warning about such event.

Returns:C

the updated configurable context.

register	back to summary
public C register(Class<?> componentClass, Map<Class<?>, Integer> contracts) Register a class of a custom JAX-RS component (such as an extension provider or a `feature` 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 via `javax.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:Class<?> JAX-RS component class to be configured in the scope of this configurable context. contracts:Map<Class<?>, Integer> 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 not `assignable from` the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s). Returns:C the updated configurable context.

public C register(Class<?> componentClass, Map<Class<?>, Integer> contracts)

Register a class of a custom JAX-RS component (such as an extension provider or a feature 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 via javax.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:Class<?>: JAX-RS component class to be configured in the scope of this configurable context.
contracts:Map<Class<?>, Integer>: 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 not assignable from the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s).

Returns:C

the updated configurable context.

register	back to summary
public C register(Object component) Register an instance of a custom JAX-RS component (such as an extension provider or a `feature` 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 as `Feature` or `javax.ws.rs.container.DynamicFeature`. As opposed to components registered via `register(Class)` method, the lifecycle of providers registered using this instance-based `register(...)` 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 (see `Context`) by the JAX-RS runtime prior to use. Parameters component:Object JAX-RS component instance to be configured in the scope of this configurable context. Returns:C the updated configurable context.

public C register(Object component)

Register an instance of a custom JAX-RS component (such as an extension provider or a feature 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 as Feature or javax.ws.rs.container.DynamicFeature.

As opposed to components registered via register(Class) method, the lifecycle of providers registered using this instance-based register(...) 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 (see Context) by the JAX-RS runtime prior to use.

Parameters

component:Object: JAX-RS component instance to be configured in the scope of this configurable context.

Returns:C

the updated configurable context.

register	back to summary
public C register(Object component, int priority) Register an instance of a custom JAX-RS component (such as an extension provider or a `feature` 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 via `javax.annotation.Priority` annotation is overridden with the supplied `priority` 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:Object JAX-RS component instance to be configured in the scope of this configurable context. priority:int the overriding priority for the registered component and all the provider contracts the component implements. Returns:C the updated configurable context.

public C register(Object component, int priority)

Register an instance of a custom JAX-RS component (such as an extension provider or a feature 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 via javax.annotation.Priority annotation is overridden with the supplied priority value.

Parameters

component:Object: JAX-RS component instance to be configured in the scope of this configurable context.
priority:int: the overriding priority for the registered component and all the provider contracts the component implements.

Returns:C

the updated configurable context.

register	back to summary
public C register(Object component, Class<?>... contracts) Register an instance of a custom JAX-RS component (such as an extension provider or a `feature` 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-provider `contracts`. All explicitly enumerated contract types must represent a class or an interface implemented or extended by the registered component. Contracts that are not `assignable from` the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s). Parameters component:Object JAX-RS component instance to be configured in the scope of this configurable context. contracts:Class<?>[] 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 or `null` collection of contracts via this method and SHOULD raise a warning about such event. Returns:C the updated configurable context.

public C register(Object component, Class<?>... contracts)

Register an instance of a custom JAX-RS component (such as an extension provider or a feature 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-provider contracts. All explicitly enumerated contract types must represent a class or an interface implemented or extended by the registered component. Contracts that are not assignable from the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s).

Parameters

component:Object: JAX-RS component instance to be configured in the scope of this configurable context.
contracts:Class<?>[]: 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 or null collection of contracts via this method and SHOULD raise a warning about such event.

Returns:C

the updated configurable context.

register	back to summary
public C register(Object component, Map<Class<?>, Integer> contracts) Register an instance of a custom JAX-RS component (such as an extension provider or a `feature` 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 via `javax.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:Object JAX-RS component instance to be configured in the scope of this configurable context. contracts:Map<Class<?>, Integer> 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 not `assignable from` the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s). Returns:C the updated configurable context.

public C register(Object component, Map<Class<?>, Integer> contracts)

Register an instance of a custom JAX-RS component (such as an extension provider or a feature 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 via javax.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:Object: JAX-RS component instance to be configured in the scope of this configurable context.
contracts:Map<Class<?>, Integer>: 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 not assignable from the registered component class MUST be ignored and implementations SHOULD raise a warning to inform users about the ignored contract(s).

Returns:C

the updated configurable context.

public Interface Configurable<C extends javax.ws.rs.core.Configurable>

Setting properties.

Registering JAX-RS components.

Method Summary

Method Detail