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    <title>Class FifoEvictionPolicy
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            <article class="content wrap" id="_content" data-uid="Apache.Ignite.Core.Cache.Eviction.FifoEvictionPolicy">
  
  
  <h1 id="Apache_Ignite_Core_Cache_Eviction_FifoEvictionPolicy" data-uid="Apache.Ignite.Core.Cache.Eviction.FifoEvictionPolicy" class="text-break">Class FifoEvictionPolicy
  </h1>
  <div class="markdown level0 summary"><p>Eviction policy based on First In First Out (FIFO) algorithm with batch eviction support.
<p>
The eviction starts in the following cases: 
The cache size becomes <a class="xref" href="Apache.Ignite.Core.Cache.Eviction.EvictionPolicyBase.html#Apache_Ignite_Core_Cache_Eviction_EvictionPolicyBase_BatchSize">BatchSize</a>
elements greater than the maximum size;
The size of cache entries in bytes becomes greater than the maximum memory size;
The size of cache entry calculates as sum of key size and value size.
<p>
Note: Batch eviction is enabled only if maximum memory limit isn&apos;t set.
<p>
This implementation is very efficient since it does not create any additional
table-like data structures. The FIFO ordering information is
maintained by attaching ordering metadata to cache entries.</p>
</div>
  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><span class="xref">System.Object</span></div>
    <div class="level1"><a class="xref" href="Apache.Ignite.Core.Cache.Eviction.EvictionPolicyBase.html">EvictionPolicyBase</a></div>
    <div class="level2"><span class="xref">FifoEvictionPolicy</span></div>
  </div>
  <div classs="implements">
    <h5>Implements</h5>
    <div><a class="xref" href="Apache.Ignite.Core.Cache.Eviction.IEvictionPolicy.html">IEvictionPolicy</a></div>
  </div>
  <div class="inheritedMembers">
    <h5>Inherited Members</h5>
    <div>
      <a class="xref" href="Apache.Ignite.Core.Cache.Eviction.EvictionPolicyBase.html#Apache_Ignite_Core_Cache_Eviction_EvictionPolicyBase_DefaultBatchSize">EvictionPolicyBase.DefaultBatchSize</a>
    </div>
    <div>
      <a class="xref" href="Apache.Ignite.Core.Cache.Eviction.EvictionPolicyBase.html#Apache_Ignite_Core_Cache_Eviction_EvictionPolicyBase_DefaultMaxSize">EvictionPolicyBase.DefaultMaxSize</a>
    </div>
    <div>
      <a class="xref" href="Apache.Ignite.Core.Cache.Eviction.EvictionPolicyBase.html#Apache_Ignite_Core_Cache_Eviction_EvictionPolicyBase_DefaultMaxMemorySize">EvictionPolicyBase.DefaultMaxMemorySize</a>
    </div>
    <div>
      <a class="xref" href="Apache.Ignite.Core.Cache.Eviction.EvictionPolicyBase.html#Apache_Ignite_Core_Cache_Eviction_EvictionPolicyBase_BatchSize">EvictionPolicyBase.BatchSize</a>
    </div>
    <div>
      <a class="xref" href="Apache.Ignite.Core.Cache.Eviction.EvictionPolicyBase.html#Apache_Ignite_Core_Cache_Eviction_EvictionPolicyBase_MaxSize">EvictionPolicyBase.MaxSize</a>
    </div>
    <div>
      <a class="xref" href="Apache.Ignite.Core.Cache.Eviction.EvictionPolicyBase.html#Apache_Ignite_Core_Cache_Eviction_EvictionPolicyBase_MaxMemorySize">EvictionPolicyBase.MaxMemorySize</a>
    </div>
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      <span class="xref">System.Object.ToString()</span>
    </div>
    <div>
      <span class="xref">System.Object.Equals(System.Object)</span>
    </div>
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      <span class="xref">System.Object.Equals(System.Object, System.Object)</span>
    </div>
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    </div>
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    </div>
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      <span class="xref">System.Object.GetType()</span>
    </div>
    <div>
      <span class="xref">System.Object.MemberwiseClone()</span>
    </div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="Apache.Ignite.Core.Cache.Eviction.html">Apache.Ignite.Core.Cache.Eviction</a></h6>
  <h6><strong>Assembly</strong>: Apache.Ignite.Core.dll</h6>
  <h5 id="Apache_Ignite_Core_Cache_Eviction_FifoEvictionPolicy_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public class FifoEvictionPolicy : EvictionPolicyBase, IEvictionPolicy</code></pre>
  </div>
  <h3 id="implements">Implements</h3>
  <div>
      <a class="xref" href="Apache.Ignite.Core.Cache.Eviction.IEvictionPolicy.html">IEvictionPolicy</a>
  </div>
</article>
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