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<h1>Add fields to the entities</h1>
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<p>Before mapping the entities to the database, you must add the necessary fields to each entity.</p>
<ol type="1" start="1">
<li>
<p>Add the following fields to the <span class="bold">Employee</span> entity:</p>
<pre xml:space="preserve" class="oac_no_warn">
private Long id;
private String firstNname;
private String lastName;
private String address;
private List&lt;PhoneNumber&gt; phoneNumbers;
private Long version;

</pre></li>
<li>
<p>Import <span class="bold">java.util.List</span>.</p>
</li>
<li>
<p>Generate Getters and Setters for each field.</p>
</li>
<li>
<p>Add the following fields to the <span class="bold">Address</span> entity:</p>
<pre xml:space="preserve" class="oac_no_warn">
private Long id;
private String street;
private String city;
private String stateOrProvince;
private String country;
private String postalCode;

</pre></li>
<li>
<p>Add the following fields to the <span class="bold">PhoneNumber</span> entity:</p>
<pre xml:space="preserve" class="oac_no_warn">
private String type;
private String areaCode;
private String number;
private Employee owner;

</pre></li>
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<p>Next, you will <a href="getting_started012.htm#BABIHGGD">Associate the entity with a database table</a>.</p>
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