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<div class="subTitle">org.apache.ignite.cache.store.cassandra.persistence</div>
<h2 title="Enum PersistenceStrategy" class="title">Enum PersistenceStrategy</h2>
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<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">java.lang.Enum</a><span class='angle_bracket'>&lt;</span><a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html" title="enum in org.apache.ignite.cache.store.cassandra.persistence">PersistenceStrategy</a><span class='angle_bracket'>&gt;</span></li>
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<li>org.apache.ignite.cache.store.cassandra.persistence.PersistenceStrategy</li>
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<pre>public enum <span class="typeNameLabel">PersistenceStrategy</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a><span class='angle_bracket'>&lt;</span><a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html" title="enum in org.apache.ignite.cache.store.cassandra.persistence">PersistenceStrategy</a><span class='angle_bracket'>&gt;</span></pre>
<div class="block">Describes persistence strategy to be used to persist object data into Cassandra.</div>
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<caption><span>Enum Constants</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colOne" scope="col">Enum Constant and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html#BLOB">BLOB</a></span></code>
<div class="block">Stores object value as BLOB, by mapping its value to Cassandra table column with blob type.</div>
</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html#POJO">POJO</a></span></code>
<div class="block">Stores each field of an object as a column having corresponding type in Cassandra table.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html#PRIMITIVE">PRIMITIVE</a></span></code>
<div class="block">Stores object value as is, by mapping its value to Cassandra table column with corresponding type.</div>
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<td class="colFirst"><code>static <a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html" title="enum in org.apache.ignite.cache.store.cassandra.persistence">PersistenceStrategy</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html#valueOf-java.lang.String-">valueOf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</code>
<div class="block">Returns the enum constant of this type with the specified name.</div>
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<td class="colFirst"><code>static <a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html" title="enum in org.apache.ignite.cache.store.cassandra.persistence">PersistenceStrategy</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html#values--">values</a></span>()</code>
<div class="block">Returns an array containing the constants of this enum type, in
the order they are declared.</div>
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<pre>public static final&nbsp;<a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html" title="enum in org.apache.ignite.cache.store.cassandra.persistence">PersistenceStrategy</a> PRIMITIVE</pre>
<div class="block">Stores object value as is, by mapping its value to Cassandra table column with corresponding type.
<p>
Could be used for primitive java type (like Integer, String, Long and etc) which could be directly mapped
to appropriate Cassandra types.</div>
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<pre>public static final&nbsp;<a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html" title="enum in org.apache.ignite.cache.store.cassandra.persistence">PersistenceStrategy</a> BLOB</pre>
<div class="block">Stores object value as BLOB, by mapping its value to Cassandra table column with blob type.
Could be used for any java type. Conversion of java object to BLOB is handled by specified serializer.
<p>
Available serializer implementations:
<ul>
<li>
org.apache.ignite.cache.store.cassandra.serializer.JavaSerializer - uses standard Java
serialization framework.
</li>
<li>
org.apache.ignite.cache.store.cassandra.serializer.KryoSerializer - uses Kryo serialization
framework.
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<h4>POJO</h4>
<pre>public static final&nbsp;<a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html" title="enum in org.apache.ignite.cache.store.cassandra.persistence">PersistenceStrategy</a> POJO</pre>
<div class="block">Stores each field of an object as a column having corresponding type in Cassandra table.
Provides ability to utilize Cassandra secondary indexes for object fields.
<p>
Could be used for objects which follow JavaBeans convention and having empty public constructor.
Object fields should be:
<ul>
<li>Primitive java types like int, long, String and etc.</li>
<li>Collections of primitive java types like List<Integer>, Map<Integer, String>, Set<Long></li>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html" title="enum in org.apache.ignite.cache.store.cassandra.persistence">PersistenceStrategy</a>[]&nbsp;values()</pre>
<div class="block">Returns an array containing the constants of this enum type, in
the order they are declared. This method may be used to iterate
over the constants as follows:
<pre>
for (PersistenceStrategy c : PersistenceStrategy.values())
&nbsp; System.out.println(c);
</pre></div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>an array containing the constants of this enum type, in the order they are declared</dd>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/ignite/cache/store/cassandra/persistence/PersistenceStrategy.html" title="enum in org.apache.ignite.cache.store.cassandra.persistence">PersistenceStrategy</a>&nbsp;valueOf(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</pre>
<div class="block">Returns the enum constant of this type with the specified name.
The string must match <i>exactly</i> an identifier used to declare an
enum constant in this type. (Extraneous whitespace characters are
not permitted.)</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - the name of the enum constant to be returned.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the enum constant with the specified name</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if this enum type has no constant with the specified name</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if the argument is null</dd>
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