```
public interface Configuration
```
A configuration state associated with a configurable JAX-RS context. Defines the components as well as additional meta-data for the configured context.
A configuration state may be used to retrieve configuration information about of the associated JAX-RS context (e.g. application, resource method, etc.) or component (e.g. Client, WebTarget, etc.). Configuration information consists of properties, registered JAX-RS component classes and/or instances.

This interface can be injected using the Context annotation.

Since:

2.0

Author:

Marek Potociar

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`Set<Class<?>>`	`getClasses()` Get the immutable set of registered JAX-RS component (such as provider or `feature`) classes to be instantiated, injected and utilized in the scope of the configurable instance.
`Map<Class<?>,Integer>`	`getContracts(Class<?> componentClass)` Get the extension contract registration information for a component of a given class.
`Set<Object>`	`getInstances()` Get the immutable set of registered JAX-RS component (such as provider or `feature`) instances to be utilized by the configurable instance.
`Map<String,Object>`	`getProperties()` Get the immutable bag of configuration properties.
`Object`	`getProperty(String name)` Get the value for the property with a given name.
`Collection<String>`	`getPropertyNames()` Returns an immutable `collection` containing the property names available within the context of the current configuration instance.
`RuntimeType`	`getRuntimeType()` Get the runtime type of this configuration context.
`boolean`	`isEnabled(Class<? extends Feature> featureClass)` Check if a `feature` instance of `featureClass` class has been previously enabled in the runtime configuration context.
`boolean`	`isEnabled(Feature feature)` Check if a particular `feature` instance has been previously enabled in the runtime configuration context.
`boolean`	`isRegistered(Class<?> componentClass)` Check if a JAX-RS component of the supplied `componentClass` class has been previously registered in the runtime configuration context.
`boolean`	`isRegistered(Object component)` Check if a particular JAX-RS `component` instance (such as providers or `features`) has been previously registered in the runtime configuration context.

Erste Seite von API Java Inhaltsverzeichnis Haut

- Method Detail
  - getRuntimeType
```
RuntimeType getRuntimeType()
```
    Get the runtime type of this configuration context.
    
    Returns:
    
    configuration context runtime type.
  - getProperties
```
Map<String,Object> getProperties()
```
    Get the immutable bag of configuration properties.
    
    Returns:
    
    the immutable view of configuration properties.
  - getProperty
```
Object getProperty(String name)
```
    Get the value for the property with a given name.
    
    Parameters:
    
    name - property name.
    
    Returns:
    
    the property value for the specified property name or null if the property with such name is not configured.
  - getPropertyNames
```
Collection<String> getPropertyNames()
```
    Returns an immutable collection containing the property names available within the context of the current configuration instance.
    Use the getProperty(java.lang.String) method with a property name to get the value of a property.
    
    Returns:
    
    an immutable collection of property names.
    
    See Also:
    
    getProperty(java.lang.String)
  - isEnabled
```
boolean isEnabled(Feature feature)
```
    Check if a particular feature instance has been previously enabled in the runtime configuration context.
    Method returns true only in case an instance equal to the feature instance is already present among the features previously successfully enabled in the configuration context.
    
    Parameters:
    
    feature - a feature instance to test for.
    
    Returns:
    
    true if the feature instance has been previously enabled in this configuration context, false otherwise.
  - isEnabled
```
boolean isEnabled(Class<? extends Feature> featureClass)
```
    Check if a feature instance of featureClass class has been previously enabled in the runtime configuration context.
    Method returns true in case any instance of the featureClass class is already present among the features previously successfully enabled in the configuration context.
    
    Parameters:
    
    featureClass - a feature class to test for.
    
    Returns:
    
    true if a feature of a given class has been previously enabled in this configuration context, false otherwise.
  - isRegistered
```
boolean isRegistered(Object component)
```
    Check if a particular JAX-RS component instance (such as providers or features) has been previously registered in the runtime configuration context.
    Method returns true only in case an instance equal to the component instance is already present among the components previously registered in the configuration context.
    
    Parameters:
    
    component - a component instance to test for.
    
    Returns:
    
    true if the component instance has been previously registered in this configuration context, false otherwise.
    
    See Also:
    
    isEnabled(Feature)
  - isRegistered
```
boolean isRegistered(Class<?> componentClass)
```
    Check if a JAX-RS component of the supplied componentClass class has been previously registered in the runtime configuration context.
    Method returns true in case a component of the supplied componentClass class is already present among the previously registered component classes or instances in the configuration context.
    
    Parameters:
    
    componentClass - a component class to test for.
    
    Returns:
    
    true if a component of a given class has been previously registered in this configuration context, false otherwise.
    
    See Also:
    
    isEnabled(Class)
  - getContracts
```
Map<Class<?>,Integer> getContracts(Class<?> componentClass)
```
    Get the extension contract registration information for a component of a given class. For component classes that are not configured in this configuration context the method returns an empty Map. Method does not return null.
    
    Returns:
    
    map of extension contracts and their priorities for which the component class is registered. May return an empty map in case the component has not been registered for any extension contract supported by the implementation.
  - getClasses
```
Set<Class<?>> getClasses()
```
    Get the immutable set of registered JAX-RS component (such as provider or feature) classes to be instantiated, injected and utilized in the scope of the configurable instance.
    For each component type, there can be only a single class-based or instance-based registration present in the configuration context at any given time.
    
    Returns:
    
    the immutable set of registered JAX-RS component classes. The returned value may be empty but will never be null.
    
    See Also:
    
    getInstances()
  - getInstances
```
Set<Object> getInstances()
```
    Get the immutable set of registered JAX-RS component (such as provider or feature) instances to be utilized by the configurable instance. Fields and properties of returned instances are injected with their declared dependencies (see Context) by the runtime prior to use.
    For each component type, there can be only a single class-based or instance-based registration present in the configuration context at any given time.
    
    Returns:
    
    the immutable set of registered JAX-RS component instances. The returned value may be empty but will never be null.
    
    See Also:
    
    getClasses()

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Vielen Dank im Voraus.

Dokument erstellt 11/06/2005, zuletzt geändert 18/08/2025
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-javaee-rf-javax/ws/rs/core/Configuration.html

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Referenzen

Manuel PHP : https://docs.oracle.com, Configuration (Java(TM) EE 7 Specification APIs)

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Interface Configuration

Method Summary

Method Detail

getRuntimeType

getProperties

getProperty

getPropertyNames

isEnabled

isEnabled

isRegistered

isRegistered

getContracts

getClasses

getInstances

Referenzen