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package javax.ws.rs;

/**
 * A collection of built-in priority constants for the JAX-RS components that are supposed to be
 * ordered based on their {@code javax.annotation.Priority} class-level annotation value when used
 * or applied by JAX-RS runtime.
 * 

* For example, JAX-RS filters and interceptors are grouped in chains for each of the message * processing extension points: Pre, PreMatch, Post as well as ReadFrom and WriteTo. * Each of these chains is sorted based on priorities which are represented as integer numbers. * All chains, except Post, are sorted in ascending order; the lower the number the higher the priority. * The Post filter chain is sorted in descending order to ensure that response filters are executed in * reverse order. *

*

* JAX-RS components that belong to the same priority class (same integer value) are executed in an * implementation-defined manner. By default, when the {@code @Priority} annotation is absent on a component, * for which a priority should be applied, the {@link Priorities#USER} priority value is used. *

* * @author Marek Potociar (marek.potociar at oracle.com) * @since 2.0 */ public final class Priorities { private Priorities() { // prevents construction } /** * Security authentication filter/interceptor priority. */ public static final int AUTHENTICATION = 1000; /** * Security authorization filter/interceptor priority. */ public static final int AUTHORIZATION = 2000; /** * Header decorator filter/interceptor priority. */ public static final int HEADER_DECORATOR = 3000; /** * Message encoder or decoder filter/interceptor priority. */ public static final int ENTITY_CODER = 4000; /** * User-level filter/interceptor priority. * * This value is also used as a default priority for application-supplied providers. */ public static final int USER = 5000; }




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