src/java/org/apache/cassandra/utils/concurrent/ImmediateFuture.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.cassandra.utils.concurrent;

public class ImmediateFuture<V> extends AsyncFuture<V>
{
    private ImmediateFuture(V value)
    {
        super(value);
    }

    private ImmediateFuture(Throwable cause)
    {
        super(cause);
    }

    private ImmediateFuture(FailureHolder failure)
    {
        super(failure);
    }

    public static <V> ImmediateFuture<V> success(V value)
    {
        return new ImmediateFuture<>(value);
    }

    public static <V> ImmediateFuture<V> failure(Throwable cause)
    {
        return new ImmediateFuture<>(cause);
    }

    public static <V> ImmediateFuture<V> cancelled()
    {
        return new ImmediateFuture<>(CANCELLED);
    }
}