Platform Explorer / Nuxeo Platform LTS 2017 9.10

Component org.nuxeo.ecm.core.transientstore.TransientStorageComponent

In bundle org.nuxeo.ecm.core.cache

Documentation

Provide a way to manage TransientStores where temporary data can be stored by key.

Implementation

Class: org.nuxeo.ecm.core.transientstore.TransientStorageComponent

Services

Extension Points

Contributions

XML Source

<?xml version="1.0"?>
<component name="org.nuxeo.ecm.core.transientstore.TransientStorageComponent">

  <service>
    <provide interface="org.nuxeo.ecm.core.transientstore.api.TransientStoreService" />
  </service>

   <documentation>
    Provide a way to manage TransientStores where temporary data can be stored by key.
   </documentation>

  <implementation class="org.nuxeo.ecm.core.transientstore.TransientStorageComponent" />

  <extension-point name="store">

    <documentation>
    Allow to declare a transient store inside Nuxeo.
    The store is identified by a name and the descriptor has several parameters :

     <code>
       <store name="microStore">
          <!--  a store that can not store anything  -->
          <targetMaxSizeMB>0</targetMaxSizeMB>
          <absoluteMaxSizeMB>0</absoluteMaxSizeMB>
       </store>
     </code>

     The store tag supports 2 attributes:
     <ul>
         <li>name, that is used to identify the store</li>
         <li>class, that should reference an implementation of the TransientStoreProvider interface (will default to SimpleTransientStore))</li>
     </ul>

     Nested configuration elements are :
     <ul>
         <li>targetMaxSizeMB : target size that ideally should never be exceeded</li>
         <li>absoluteMaxSizeMB : size that must never be exceeded</li>
         <li>firstLevelTTL : TTL in minutes of the first level cache</li>
         <li>secondLevelTTL : TTL in minutes of the first level cache</li>
     </ul>

    </documentation>
    <object class="org.nuxeo.ecm.core.transientstore.api.TransientStoreConfig"/>

  </extension-point>

  <extension
    target="org.nuxeo.ecm.core.scheduler.SchedulerService"
    point="schedule">
    <schedule id="transientStoreGC">
      <eventId>transientStoreGCStart</eventId>
      <eventCategory>default</eventCategory>
      <!-- cleanup every 15 minutes -->
      <cronExpression>0 0/15 * * * ?</cronExpression>
    </schedule>
  </extension>

  <extension target="org.nuxeo.ecm.core.event.EventServiceComponent"
    point="listener">
    <listener name="transientStoreGCTrigger" async="false" postCommit="false"
      class="org.nuxeo.ecm.core.transientstore.TransientStorageGCTrigger">
      <event>transientStoreGCStart</event>
    </listener>
  </extension>

</component>