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  /*
   * Copyright 2010-2015 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.ec2.model;
 

Describes an instance state change.

 
 public class InstanceStateChange implements SerializableCloneable {

    
The ID of the instance.
 
     private String instanceId;

    
The current state of the instance.
 
     private InstanceState currentState;

    
The previous state of the instance.
 
     private InstanceState previousState;

    
The ID of the instance.

Returns:
The ID of the instance.
 
     public String getInstanceId() {
         return ;
     }
    
    
The ID of the instance.

Parameters:
instanceId The ID of the instance.
 
     public void setInstanceId(String instanceId) {
         this. = instanceId;
     }
    
    
The ID of the instance.

Returns a reference to this object so that method calls can be chained together.

Parameters:
instanceId The ID of the instance.
Returns:
A reference to this updated object so that method calls can be chained together.
 
     public InstanceStateChange withInstanceId(String instanceId) {
         this. = instanceId;
         return this;
     }

    
The current state of the instance.

Returns:
The current state of the instance.
 
     public InstanceState getCurrentState() {
         return ;
     }
    
    
The current state of the instance.

Parameters:
currentState The current state of the instance.
 
     public void setCurrentState(InstanceState currentState) {
         this. = currentState;
     }
    
    
The current state of the instance.

Returns a reference to this object so that method calls can be chained together.

Parameters:
currentState The current state of the instance.
Returns:
A reference to this updated object so that method calls can be chained together.
    public InstanceStateChange withCurrentState(InstanceState currentState) {
        this. = currentState;
        return this;
    }

    
The previous state of the instance.

Returns:
The previous state of the instance.
    public InstanceState getPreviousState() {
        return ;
    }
    
    
The previous state of the instance.

Parameters:
previousState The previous state of the instance.
    public void setPreviousState(InstanceState previousState) {
        this. = previousState;
    }
    
    
The previous state of the instance.

Returns a reference to this object so that method calls can be chained together.

Parameters:
previousState The previous state of the instance.
Returns:
A reference to this updated object so that method calls can be chained together.
    public InstanceStateChange withPreviousState(InstanceState previousState) {
        this. = previousState;
        return this;
    }

    
Returns a string representation of this object; useful for testing and debugging.

Returns:
A string representation of this object.
See also:
java.lang.Object.toString()
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getInstanceId() != nullsb.append("InstanceId: " + getInstanceId() + ",");
        if (getCurrentState() != nullsb.append("CurrentState: " + getCurrentState() + ",");
        if (getPreviousState() != nullsb.append("PreviousState: " + getPreviousState() );
        sb.append("}");
        return sb.toString();
    }
    
    @Override
    public int hashCode() {
        final int prime = 31;
        int hashCode = 1;
        
        hashCode = prime * hashCode + ((getInstanceId() == null) ? 0 : getInstanceId().hashCode()); 
        hashCode = prime * hashCode + ((getCurrentState() == null) ? 0 : getCurrentState().hashCode()); 
        hashCode = prime * hashCode + ((getPreviousState() == null) ? 0 : getPreviousState().hashCode()); 
        return hashCode;
    }
    
    @Override
    public boolean equals(Object obj) {
        if (this == objreturn true;
        if (obj == nullreturn false;
        if (obj instanceof InstanceStateChange == falsereturn false;
        InstanceStateChange other = (InstanceStateChange)obj;
        
        if (other.getInstanceId() == null ^ this.getInstanceId() == nullreturn false;
        if (other.getInstanceId() != null && other.getInstanceId().equals(this.getInstanceId()) == falsereturn false
        if (other.getCurrentState() == null ^ this.getCurrentState() == nullreturn false;
        if (other.getCurrentState() != null && other.getCurrentState().equals(this.getCurrentState()) == falsereturn false
        if (other.getPreviousState() == null ^ this.getPreviousState() == nullreturn false;
        if (other.getPreviousState() != null && other.getPreviousState().equals(this.getPreviousState()) == falsereturn false
        return true;
    }
    
    @Override
    public InstanceStateChange clone() {
        try {
            return (InstanceStateChangesuper.clone();
        
        } catch (CloneNotSupportedException e) {
            throw new IllegalStateException(
                    "Got a CloneNotSupportedException from Object.clone() "
                    + "even though we're Cloneable!",
                    e);
        }
        
    }
}
    
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