/*
 * Copyright (c) 2016 Network New Technologies Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.networknt.client;

public interface AsyncResult<T> {

    /**
     * The result of the operation. This will be null if the operation failed.
     * @return T
     */
    T result();

    /**
     * An exception describing failure. This will be null if the operation succeeded.
     * @return Throwable exception
     */
    Throwable cause();

    /**
     * Did it succeed?
     * @return boolean
     */
    boolean succeeded();

    /**
     * Did it fail?
     * @return boolean
     */
    boolean failed();
}
