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package javax.websocket;

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

/**
 * This method level annotation can be used to decorate a Java method that wishes to be called in order
 * to handle errors. See {@link Endpoint#onError} for
 * a description of the different categories of error.
 *
 * <p>The method may only take the following parameters:-
 * <ul>
 * <li>optional {@link Session} parameter</li>
 * <li>a {@link java.lang.Throwable}  parameter</li>
 * <li>Zero to n String parameters annotated with the {@link javax.websocket.server.PathParam} annotation</li>
 * </ul>
 *
 * <p>The parameters may appear in any order.
 *
 * @author dannycoward
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface OnError {

}
