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JDBC Driver for Google Cloud Spanner

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/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in nl.topicus.jdbc.shaded.com.liance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.nl.topicus.jdbc.shaded.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 nl.topicus.jdbc.shaded.io.nl.topicus.jdbc.shaded.net.y.util.concurrent;

/**
 * The {@link CompleteFuture} which is succeeded already.  It is
 * recommended to use {@link EventExecutor#newSucceededFuture(Object)} instead of
 * calling the constructor of this future.
 */
public final class SucceededFuture extends CompleteFuture {
    private final V result;

    /**
     * Creates a new instance.
     *
     * @param executor the {@link EventExecutor} associated with this future
     */
    public SucceededFuture(EventExecutor executor, V result) {
        super(executor);
        this.result = result;
    }

    @Override
    public Throwable cause() {
        return null;
    }

    @Override
    public boolean isSuccess() {
        return true;
    }

    @Override
    public V getNow() {
        return result;
    }
}