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package javax.faces.flow;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import javax.enterprise.context.NormalScope;

/**
 * <p class="changed_added_2_2"><strong>FlowScoped</strong> is a CDI
 * scope that causes the runtime to consider classes with this
 * annotation to be in the scope of the specified {@link Flow}.  The
 * implementation must provide an implementation of {@code
 * javax.enterprise.inject.spi.Extension} that implements the semantics
 * such that beans with this annotation are created when the user enters
 * into the specified {@code Flow}, and de-allocated when the user exits
 * the specified {@code Flow}.  See {@link FlowHandler#transition} for
 * the specification of flow entry and exit.</p>
 * 
 * @since 2.2
 */


@NormalScope
@Inherited
@Documented
@Target(ElementType.TYPE)
@Retention(value = RetentionPolicy.RUNTIME)
public @interface FlowScoped {

   
    /**
     * <p class="changed_added_2_2">Must be equivalent to the {@link
     * Flow#getId} of a defined flow for this application.</p>
     *
     * @since 2.2
     */
    String value();

    /**
     * <p class="changed_added_2_2">If not empty, declare the defining
     * document id within which the {@link Flow} referenced by {@link
     * #value} is unique.  If empty the, the runtime assumes that all flow
     * ids are unique within the scope of the application.</p>
     *
     * @since 2.2
     */
    
    String definingDocumentId() default "";

}
