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The AWS Java SDK for Amazon EMR module holds the client classes that are used for communicating with Amazon Elastic MapReduce Service
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/*
 * Copyright 2011-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"). You may not
 * use this file except in compliance with the License. A copy of the License is
 * located at
 * 
 * http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file 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.amazonaws.services.elasticmapreduce.model;

import java.io.Serializable;

/**
 * 
 * The timeline of the cluster step lifecycle.
 * 
 */
public class StepTimeline implements Serializable, Cloneable {

    /**
     * 
     * The date and time when the cluster step was created.
     * 
     */
    private java.util.Date creationDateTime;
    /**
     * 
     * The date and time when the cluster step execution started.
     * 
     */
    private java.util.Date startDateTime;
    /**
     * 
     * The date and time when the cluster step execution completed or failed.
     * 
     */
    private java.util.Date endDateTime;

    /**
     * 
     * The date and time when the cluster step was created.
     * 
     * 
     * @param creationDateTime
     *        The date and time when the cluster step was created.
     */

    public void setCreationDateTime(java.util.Date creationDateTime) {
        this.creationDateTime = creationDateTime;
    }

    /**
     * 
     * The date and time when the cluster step was created.
     * 
     * 
     * @return The date and time when the cluster step was created.
     */

    public java.util.Date getCreationDateTime() {
        return this.creationDateTime;
    }

    /**
     * 
     * The date and time when the cluster step was created.
     * 
     * 
     * @param creationDateTime
     *        The date and time when the cluster step was created.
     * @return Returns a reference to this object so that method calls can be
     *         chained together.
     */

    public StepTimeline withCreationDateTime(java.util.Date creationDateTime) {
        setCreationDateTime(creationDateTime);
        return this;
    }

    /**
     * 
     * The date and time when the cluster step execution started.
     * 
     * 
     * @param startDateTime
     *        The date and time when the cluster step execution started.
     */

    public void setStartDateTime(java.util.Date startDateTime) {
        this.startDateTime = startDateTime;
    }

    /**
     * 
     * The date and time when the cluster step execution started.
     * 
     * 
     * @return The date and time when the cluster step execution started.
     */

    public java.util.Date getStartDateTime() {
        return this.startDateTime;
    }

    /**
     * 
     * The date and time when the cluster step execution started.
     * 
     * 
     * @param startDateTime
     *        The date and time when the cluster step execution started.
     * @return Returns a reference to this object so that method calls can be
     *         chained together.
     */

    public StepTimeline withStartDateTime(java.util.Date startDateTime) {
        setStartDateTime(startDateTime);
        return this;
    }

    /**
     * 
     * The date and time when the cluster step execution completed or failed.
     * 
     * 
     * @param endDateTime
     *        The date and time when the cluster step execution completed or
     *        failed.
     */

    public void setEndDateTime(java.util.Date endDateTime) {
        this.endDateTime = endDateTime;
    }

    /**
     * 
     * The date and time when the cluster step execution completed or failed.
     * 
     * 
     * @return The date and time when the cluster step execution completed or
     *         failed.
     */

    public java.util.Date getEndDateTime() {
        return this.endDateTime;
    }

    /**
     * 
     * The date and time when the cluster step execution completed or failed.
     * 
     * 
     * @param endDateTime
     *        The date and time when the cluster step execution completed or
     *        failed.
     * @return Returns a reference to this object so that method calls can be
     *         chained together.
     */

    public StepTimeline withEndDateTime(java.util.Date endDateTime) {
        setEndDateTime(endDateTime);
        return this;
    }

    /**
     * Returns a string representation of this object; useful for testing and
     * debugging.
     *
     * @return A string representation of this object.
     *
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getCreationDateTime() != null)
            sb.append("CreationDateTime: " + getCreationDateTime() + ",");
        if (getStartDateTime() != null)
            sb.append("StartDateTime: " + getStartDateTime() + ",");
        if (getEndDateTime() != null)
            sb.append("EndDateTime: " + getEndDateTime());
        sb.append("}");
        return sb.toString();
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;

        if (obj instanceof StepTimeline == false)
            return false;
        StepTimeline other = (StepTimeline) obj;
        if (other.getCreationDateTime() == null
                ^ this.getCreationDateTime() == null)
            return false;
        if (other.getCreationDateTime() != null
                && other.getCreationDateTime().equals(
                        this.getCreationDateTime()) == false)
            return false;
        if (other.getStartDateTime() == null ^ this.getStartDateTime() == null)
            return false;
        if (other.getStartDateTime() != null
                && other.getStartDateTime().equals(this.getStartDateTime()) == false)
            return false;
        if (other.getEndDateTime() == null ^ this.getEndDateTime() == null)
            return false;
        if (other.getEndDateTime() != null
                && other.getEndDateTime().equals(this.getEndDateTime()) == false)
            return false;
        return true;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int hashCode = 1;

        hashCode = prime
                * hashCode
                + ((getCreationDateTime() == null) ? 0 : getCreationDateTime()
                        .hashCode());
        hashCode = prime
                * hashCode
                + ((getStartDateTime() == null) ? 0 : getStartDateTime()
                        .hashCode());
        hashCode = prime
                * hashCode
                + ((getEndDateTime() == null) ? 0 : getEndDateTime().hashCode());
        return hashCode;
    }

    @Override
    public StepTimeline clone() {
        try {
            return (StepTimeline) super.clone();
        } catch (CloneNotSupportedException e) {
            throw new IllegalStateException(
                    "Got a CloneNotSupportedException from Object.clone() "
                            + "even though we're Cloneable!", e);
        }
    }
}