com.sun.jersey.server.linking.Ref Maven / Gradle / Ivy
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package com.sun.jersey.server.linking;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Specifies a link injection target in a returned representation bean. May be
* used on fields of type String or URI. One of {@link #value()} or
* {@link #resource()} must be specified.
*/
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
public @interface Ref {
/**
* Styles of URI supported
*/
public enum Style {
/**
* An absolute URI. The URI template will be prefixed with the
* absolute base URI of the application.
*/
ABSOLUTE,
/**
* An absolute path. The URI template will be prefixed with the
* absolute base path of the application.
*/
ABSOLUTE_PATH,
/**
* A relative path. The URI template will be converted to a relative
* path with no prefix.
*/
RELATIVE_PATH
};
/**
* The style of URI to inject
*/
Style style() default Style.ABSOLUTE_PATH;
/**
* Specifies a URI template that will be used to build the injected URI. The
* template may contain both URI template parameters (e.g. {id}) and EL
* expressions (e.g. ${instance.id}) using the same implicit beans as
* {@link Binding#value()}. URI template parameter values are resolved as
* described in {@link #resource()}. E.g. the following three alternatives
* are equivalent:
*
* @Ref("{id}")
* @Ref(value="{id}", bindings={
* @Binding(name="id" value="${instance.id}"}
* )
* @Ref("${instance.id}")
*
*/
String value() default "";
/**
* Specifies a resource class whose @Path URI template will be used to build
* the injected URI. Embedded URI template parameter values are resolved as
* follows:
*
* - If the {@link #bindings()} property contains a binding
* specification for the parameter then that is used
* - Otherwise an implicit binding is used that extracts the value
* of a bean property by the same name as the URI template from the
* implicit
instance bean (see {@link Binding}).
*
* E.g. assuming a resource class SomeResource with the
* following @Path("{id}") annotation, the following two
* alternatives are therefore equivalent:
*
* @Ref(resource=SomeResource.class)
* @Ref(resource=SomeResource.class, bindings={
* @Binding(name="id" value="${instance.id}"}
* )
*
*/
Class resource() default Class.class;
/**
* Used in conjunction with {@link #resource()} to specify a subresource
* locator or method. The value is the name of the method. The value of
* the method's @Path annotation will be appended to the value of the
* class-level @Path annotation separated by '/' if necessary.
*/
String method() default "";
/**
* Specifies the bindings for embedded URI template parameters.
* @see Binding
*/
Binding[] bindings() default {};
/**
* Specifies a boolean EL expression whose value determines whether a Ref
* is set (true) or not (false). Omission of a condition will
* always insert a ref.
*/
String condition() default "";
}