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

        if (obj instanceof Put == false)
            return false;
        Put other = (Put) obj;
        if (other.getItem() == null ^ this.getItem() == null)
            return false;
        if (other.getItem() != null && other.getItem().equals(this.getItem()) == false)
            return false;
        if (other.getTableName() == null ^ this.getTableName() == null)
            return false;
        if (other.getTableName() != null && other.getTableName().equals(this.getTableName()) == false)
            return false;
        if (other.getConditionExpression() == null ^ this.getConditionExpression() == null)
            return false;
        if (other.getConditionExpression() != null && other.getConditionExpression().equals(this.getConditionExpression()) == false)
            return false;
        if (other.getExpressionAttributeNames() == null ^ this.getExpressionAttributeNames() == null)
            return false;
        if (other.getExpressionAttributeNames() != null && other.getExpressionAttributeNames().equals(this.getExpressionAttributeNames()) == false)
            return false;
        if (other.getExpressionAttributeValues() == null ^ this.getExpressionAttributeValues() == null)
            return false;
        if (other.getExpressionAttributeValues() != null && other.getExpressionAttributeValues().equals(this.getExpressionAttributeValues()) == false)
            return false;
        if (other.getReturnValuesOnConditionCheckFailure() == null ^ this.getReturnValuesOnConditionCheckFailure() == null)
            return false;
        if (other.getReturnValuesOnConditionCheckFailure() != null
                && other.getReturnValuesOnConditionCheckFailure().equals(this.getReturnValuesOnConditionCheckFailure()) == false)
            return false;
        return true;
    }
Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be
redacted from this string using a placeholder value.

@return A string representation of this object.

@see java.lang.Object#toString()
aws-java-sdk-dynamodb/src/main/java/com/amazonaws/services/dynamodbv2/model/Put.java