RELEASE_2_1_13/src/blocks/repository/conf/repository-caching-source.xconf

<?xml version="1.0"?>
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<!--
  - SVN $Id$
  -->
<xconf xpath="/cocoon/source-factories"
       unless="component-instance[@name='cached']">
    <!--+
        | Caching source protocol.
        | This protocol extension implements a proxy-like source
        | that can cache the contents of its delegate source.
        |
        | The uri syntax is as follows:
        | cached:subprotocol:/path[?cocoon:cache-expires=60][&cocoon:cache-name=main]
        |
        | Where:
        | - 'cached' is the caching source protocol scheme name as defined below.
        | - 'subprotcol:/path' identifies the source to get the actual contents from
        |   eg. http://cocoon.apache.org/doco.html?version=1.2
        | - optional query string parameters that start with 'cocoon:cache' represent
        |   special instructions to pass to the implementation.
        |
        | The protocol can be parametrized as follows:
        | - 'async' (false). When this is set to true cached source contents are updated
        |   in the background, using SourceRefresher component.
        | - 'cache-role' (org.apache.cocoon.caching.Cache). Use this if you want to use
        |   a Cache other than the default one.
        | - 'refresher-role' (org.apache.cocoon.components.source.DelaySourceRefresher).
        |   Use this if you wish to use a SourceRefresher other than the default one.
        |   A SourceRefresher is used when asynchronic caching is turned on. It is responsible for
        |   updating the cached contents in the background and can implement any refresh algorithm.
        | - 'default-expires' (-1). The expires value if it is not specified on the source
        |    itself. The default value of -1 means to never expire.
        +-->
    <component-instance name="cached"
                        class="org.apache.cocoon.components.source.impl.CachingSourceFactory"
                        logger="core.source.cached">
      <!--
      <parameter name="async" value="true"/>
      <parameter name="cache-role" value="org.apache.cocoon.caching.Cache"/>
      <parameter name="default-expires" value="-1"/>
      -->
      <parameter name="refresher-role" value="org.apache.cocoon.components.source.helpers.SourceRefresher/Delay"/>
    </component-instance>

</xconf>