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 <div class="subTitle">jakarta.persistence</div>
 <h2 title="Annotation Type ManyToMany" class="title">Annotation Type ManyToMany</h2>
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 <pre>@Target(value={METHOD,FIELD})
  @Retention(value=RUNTIME)
 public @interface <span class="memberNameLabel">ManyToMany</span></pre>
 <div class="block">Specifies a many-valued association with many-to-many multiplicity.

  <p> Every many-to-many association has two sides, the owning side
  and the non-owning, or inverse, side.  The join table is specified
  on the owning side. If the association is bidirectional, either
  side may be designated as the owning side.  If the relationship is
  bidirectional, the non-owning side must use the <code>mappedBy</code> element of
  the <code>ManyToMany</code> annotation to specify the relationship field or
  property of the owning side.

  <p> The join table for the relationship, if not defaulted, is
  specified on the owning side.

  <p> The <code>ManyToMany</code> annotation may be used within an
  embeddable class contained within an entity class to specify a
  relationship to a collection of entities. If the relationship is
  bidirectional and the entity containing the embeddable class is the
  owner of the relationship, the non-owning side must use the
  <code>mappedBy</code> element of the <code>ManyToMany</code>
  annotation to specify the relationship field or property of the
  embeddable class. The dot (".") notation syntax must be used in the
  <code>mappedBy</code> element to indicate the relationship
  attribute within the embedded attribute.  The value of each
  identifier used with the dot notation is the name of the respective
  embedded field or property.

  <pre>

     Example 1:

     // In Customer class:

     &#064;ManyToMany
     &#064;JoinTable(name="CUST_PHONES")
     public Set&#060;PhoneNumber&#062; getPhones() { return phones; }

     // In PhoneNumber class:

     &#064;ManyToMany(mappedBy="phones")
     public Set&#060;Customer&#062; getCustomers() { return customers; }

     Example 2:

     // In Customer class:

     &#064;ManyToMany(targetEntity=com.acme.PhoneNumber.class)
     public Set getPhones() { return phones; }

     // In PhoneNumber class:

     &#064;ManyToMany(targetEntity=com.acme.Customer.class, mappedBy="phones")
     public Set getCustomers() { return customers; }

     Example 3:

     // In Customer class:

     &#064;ManyToMany
     &#064;JoinTable(name="CUST_PHONE",
         joinColumns=
             &#064;JoinColumn(name="CUST_ID", referencedColumnName="ID"),
         inverseJoinColumns=
             &#064;JoinColumn(name="PHONE_ID", referencedColumnName="ID")
         )
     public Set&#060;PhoneNumber&#062; getPhones() { return phones; }

     // In PhoneNumberClass:

     &#064;ManyToMany(mappedBy="phones")
     public Set&#060;Customer&#062; getCustomers() { return customers; }
  </pre></div>
 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../jakarta/persistence/JoinTable.html" title="annotation in jakarta.persistence"><code>JoinTable</code></a></dd>
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 <h3>Optional Element Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Optional Element Summary table, listing optional elements, and an explanation">
 <caption><span>Optional Elements</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Optional Element and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code><a href="../../jakarta/persistence/CascadeType.html" title="enum in jakarta.persistence">CascadeType</a>[]</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/persistence/ManyToMany.html#cascade--">cascade</a></span></code>
 <div class="block">(Optional) The operations that must be cascaded to the target
  of the association.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code><a href="../../jakarta/persistence/FetchType.html" title="enum in jakarta.persistence">FetchType</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/persistence/ManyToMany.html#fetch--">fetch</a></span></code>
 <div class="block">(Optional) Whether the association should be lazily loaded or
  must be eagerly fetched.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>java.lang.String</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/persistence/ManyToMany.html#mappedBy--">mappedBy</a></span></code>
 <div class="block">The field that owns the relationship.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>java.lang.Class</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/persistence/ManyToMany.html#targetEntity--">targetEntity</a></span></code>
 <div class="block">(Optional) The entity class that is the target of the
  association.</div>
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 <pre>public abstract&nbsp;java.lang.Class&nbsp;targetEntity</pre>
 <div class="block">(Optional) The entity class that is the target of the
  association. Optional only if the collection-valued
  relationship property is defined using Java generics.  Must be
  specified otherwise.

  <p> Defaults to the parameterized type of
  the collection when defined using generics.</div>
 <dl>
 <dt>Default:</dt>
 <dd>void.class</dd>
 </dl>
 </li>
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 <pre>public abstract&nbsp;<a href="../../jakarta/persistence/CascadeType.html" title="enum in jakarta.persistence">CascadeType</a>[]&nbsp;cascade</pre>
 <div class="block">(Optional) The operations that must be cascaded to the target
  of the association.

  <p> When the target collection is a <code>java.util.Map</code>, the <code>cascade</code> element applies to the
  map value.

  <p> Defaults to no operations being cascaded.</div>
 <dl>
 <dt>Default:</dt>
 <dd>{}</dd>
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 <pre>public abstract&nbsp;<a href="../../jakarta/persistence/FetchType.html" title="enum in jakarta.persistence">FetchType</a>&nbsp;fetch</pre>
 <div class="block">(Optional) Whether the association should be lazily loaded or
  must be eagerly fetched. The EAGER strategy is a requirement on
  the persistence provider runtime that the associated entities
  must be eagerly fetched.  The LAZY strategy is a hint to the
  persistence provider runtime.</div>
 <dl>
 <dt>Default:</dt>
 <dd>jakarta.persistence.FetchType.LAZY</dd>
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 <pre>public abstract&nbsp;java.lang.String&nbsp;mappedBy</pre>
 <div class="block">The field that owns the relationship. Required unless
  the relationship is unidirectional.</div>
 <dl>
 <dt>Default:</dt>
 <dd>""</dd>
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	<h2 title="Annotation Type ManyToMany" class="title">Annotation Type ManyToMany</h2>
	</div>
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	<pre>@Target(value={METHOD,FIELD})
	@Retention(value=RUNTIME)
	public @interface <span class="memberNameLabel">ManyToMany</span></pre>
	<div class="block">Specifies a many-valued association with many-to-many multiplicity.

	<p> Every many-to-many association has two sides, the owning side
	and the non-owning, or inverse, side. The join table is specified
	on the owning side. If the association is bidirectional, either
	side may be designated as the owning side. If the relationship is
	bidirectional, the non-owning side must use the <code>mappedBy</code> element of
	the <code>ManyToMany</code> annotation to specify the relationship field or
	property of the owning side.

	<p> The join table for the relationship, if not defaulted, is
	specified on the owning side.

	<p> The <code>ManyToMany</code> annotation may be used within an
	embeddable class contained within an entity class to specify a
	relationship to a collection of entities. If the relationship is
	bidirectional and the entity containing the embeddable class is the
	owner of the relationship, the non-owning side must use the
	<code>mappedBy</code> element of the <code>ManyToMany</code>
	annotation to specify the relationship field or property of the
	embeddable class. The dot (".") notation syntax must be used in the
	<code>mappedBy</code> element to indicate the relationship
	attribute within the embedded attribute. The value of each
	identifier used with the dot notation is the name of the respective
	embedded field or property.

	<pre>

	Example 1:

	// In Customer class:

	@ManyToMany
	@JoinTable(name="CUST_PHONES")
	public Set<PhoneNumber> getPhones() { return phones; }

	// In PhoneNumber class:

	@ManyToMany(mappedBy="phones")
	public Set<Customer> getCustomers() { return customers; }

	Example 2:

	// In Customer class:

	@ManyToMany(targetEntity=com.acme.PhoneNumber.class)
	public Set getPhones() { return phones; }

	// In PhoneNumber class:

	@ManyToMany(targetEntity=com.acme.Customer.class, mappedBy="phones")
	public Set getCustomers() { return customers; }

	Example 3:

	// In Customer class:

	@ManyToMany
	@JoinTable(name="CUST_PHONE",
	joinColumns=
	@JoinColumn(name="CUST_ID", referencedColumnName="ID"),
	inverseJoinColumns=
	@JoinColumn(name="PHONE_ID", referencedColumnName="ID")
	)
	public Set<PhoneNumber> getPhones() { return phones; }

	// In PhoneNumberClass:

	@ManyToMany(mappedBy="phones")
	public Set<Customer> getCustomers() { return customers; }
	</pre></div>
	<dl>
	<dt><span class="simpleTagLabel">Since:</span></dt>
	<dd>1.0</dd>
	<dt><span class="seeLabel">See Also:</span></dt>
	<dd><a href="../../jakarta/persistence/JoinTable.html" title="annotation in jakarta.persistence"><code>JoinTable</code></a></dd>
	</dl>
	</li>
	</ul>
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	<h3>Optional Element Summary</h3>
	<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Optional Element Summary table, listing optional elements, and an explanation">
	<caption><span>Optional Elements</span><span class="tabEnd"> </span></caption>
	<tr>
	<th class="colFirst" scope="col">Modifier and Type</th>
	<th class="colLast" scope="col">Optional Element and Description</th>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code><a href="../../jakarta/persistence/CascadeType.html" title="enum in jakarta.persistence">CascadeType</a>[]</code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/persistence/ManyToMany.html#cascade--">cascade</a></span></code>
	<div class="block">(Optional) The operations that must be cascaded to the target
	of the association.</div>
	</td>
	</tr>
	<tr class="rowColor">
	<td class="colFirst"><code><a href="../../jakarta/persistence/FetchType.html" title="enum in jakarta.persistence">FetchType</a></code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/persistence/ManyToMany.html#fetch--">fetch</a></span></code>
	<div class="block">(Optional) Whether the association should be lazily loaded or
	must be eagerly fetched.</div>
	</td>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code>java.lang.String</code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/persistence/ManyToMany.html#mappedBy--">mappedBy</a></span></code>
	<div class="block">The field that owns the relationship.</div>
	</td>
	</tr>
	<tr class="rowColor">
	<td class="colFirst"><code>java.lang.Class</code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/persistence/ManyToMany.html#targetEntity--">targetEntity</a></span></code>
	<div class="block">(Optional) The entity class that is the target of the
	association.</div>
	</td>
	</tr>
	</table>
	</li>
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	<pre>public abstract java.lang.Class targetEntity</pre>
	<div class="block">(Optional) The entity class that is the target of the
	association. Optional only if the collection-valued
	relationship property is defined using Java generics. Must be
	specified otherwise.

	<p> Defaults to the parameterized type of
	the collection when defined using generics.</div>
	<dl>
	<dt>Default:</dt>
	<dd>void.class</dd>
	</dl>
	</li>
	</ul>
	</li>
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	<li class="blockList"><a name="cascade--">
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	<h4>cascade</h4>
	<pre>public abstract <a href="../../jakarta/persistence/CascadeType.html" title="enum in jakarta.persistence">CascadeType</a>[] cascade</pre>
	<div class="block">(Optional) The operations that must be cascaded to the target
	of the association.

	<p> When the target collection is a <code>java.util.Map</code>, the <code>cascade</code> element applies to the
	map value.

	<p> Defaults to no operations being cascaded.</div>
	<dl>
	<dt>Default:</dt>
	<dd>{}</dd>
	</dl>
	</li>
	</ul>
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	<h4>fetch</h4>
	<pre>public abstract <a href="../../jakarta/persistence/FetchType.html" title="enum in jakarta.persistence">FetchType</a> fetch</pre>
	<div class="block">(Optional) Whether the association should be lazily loaded or
	must be eagerly fetched. The EAGER strategy is a requirement on
	the persistence provider runtime that the associated entities
	must be eagerly fetched. The LAZY strategy is a hint to the
	persistence provider runtime.</div>
	<dl>
	<dt>Default:</dt>
	<dd>jakarta.persistence.FetchType.LAZY</dd>
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	<h4>mappedBy</h4>
	<pre>public abstract java.lang.String mappedBy</pre>
	<div class="block">The field that owns the relationship. Required unless
	the relationship is unidirectional.</div>
	<dl>
	<dt>Default:</dt>
	<dd>""</dd>
	</dl>
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