Über die ehcache.xml werden spezifischere Einstellungen definiert und zugewiesen. Im einzelnen können nachfolgende Einstellungen getroffen werden:
- Verfallszeiten von Einträgen im Cache
- Größe des Caches
- Auslagerungen auf die Festplatte
- Definieren von Cache Strategien welche dann unterschiedlichen Entities zugewiesen werden können
<config xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
xmlns='http://www.ehcache.org/v3'
xmlns:jsr107='http://www.ehcache.org/v3/jsr107'
xsi:schemaLocation="
http://www.ehcache.org/v3 http://www.ehcache.org/schema/ehcache-core-3.5.xsd
http://www.ehcache.org/v3/jsr107 http://www.ehcache.org/schema/ehcache-107-ext-3.5.xsd">
<service>
<jsr107:defaults enable-management="true"
enable-statistics="true" default-template="defaultCacheTemplate" />
</service>
<cache-template name="defaultCacheTemplate">
<expiry>
<!-- time to idle, the maximum time for an entry to remain untouched Entries
to the Cache can be made to expire after a given time other options are:
* <ttl>, time to live; * <class>, for a custom Expiry implementation; or
* <none>, for no expiry -->
<!-- <tti unit="minutes">10</tti> -->
<!-- <tti unit="seconds">10</tti> -->
<!-- <ttl unit="seconds">1200</ttl> -->
<none />
</expiry>
<resources>
<!-- Maximum entries in memory -->
<heap unit="entries">100000</heap>
<!-- Maximum size in memory -->
<!-- <heap unit="MB">10000</heap> -->
</resources>
</cache-template>
<cache alias="org.hibernate.cache.spi.QueryResultsRegion">
<expiry>
<!-- time to idle, the maximum time for an entry to remain untouched Entries
to the Cache can be made to expire after a given time other options are:
* <ttl>, time to live; * <class>, for a custom Expiry implementation; or
* <none>, for no expiry -->
<!-- <tti unit="minutes">10</tti> -->
<!-- <tti unit="seconds">10</tti> -->
<!-- <ttl unit="seconds">1200</ttl> -->
<none />
</expiry>
<resources>
<!-- Maximum entries in memory -->
<heap unit="entries">100000</heap>
<!-- Maximum size in memory -->
<!-- <heap unit="MB">10000</heap> -->
</resources>
</cache>
<!-- Because of this line the TimestampsRegionCache inherits its preferences
from the defaultCacheTemplate. If it is necessary to define different preferences
remove this line and use it like the lines above -->
<cache alias="org.hibernate.cache.spi.TimestampsRegion"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Employee"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Order"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Product"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Customer"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Category"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Customerdemographic"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Orderdetail"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.OrderdetailId"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Region"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Shipper"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Supplier"
uses-template="defaultCacheTemplate" />
<cache alias="com.company.charttest.entities.Territory"
uses-template="defaultCacheTemplate" />
</config>
Verfallszeiten definieren
<!-- time to idle, the maximum time for an entry to remain untouched Entries to the Cache --> <tti unit="minutes">10</tti> //oder <tti unit="seconds">10</tti>
Legt fest, nach welcher Zeit das Entity verworfen werden soll. Die Zeit beginnt nach jedem Zugriff immer wieder von neuem.