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Commit a41b83a2 authored by Stephane Nicoll's avatar Stephane Nicoll
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Upgrade to Ehcache 3 

I saw on twitter the reference of an article (in french):
http://javaetmoi.com/2016/08/migrer-vers-spring-boot/

That article concludes with something along the lines of  "Besides the
EhCache and Maven configuration, Petclinic does not hold a single line
of XML anymore".

Looking at the code, we can remove more XML if you want. This PR migrates
the cache infrastructure to EhCache 3 and JCache (JSR-107). This also
reduces the number of dependencies.
parent 86458070
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pom.xml
+ 5
− 23
View file @ a41b83a2
......@@ -59,10 +59,6 @@
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
......@@ -74,18 +70,6 @@
<artifactId>jstl</artifactId>
</dependency>
<!-- used for EhCacheCacheManager -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<scope>runtime</scope>
</dependency>
<!-- Date and Time -->
<dependency>
<groupId>joda-time</groupId>
......@@ -123,14 +107,12 @@
<!-- EhCache -->
<dependency>
<groupId>net.sf.ehcache</groupId>
<groupId>javax.cache</groupId>
<artifactId>cache-api</artifactId>
</dependency>
<dependency>
<groupId>org.ehcache</groupId>
<artifactId>ehcache</artifactId>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Dandelion -->
......
src/main/java/org/springframework/samples/petclinic/config/CacheConfig.java
+ 30
− 0
View file @ a41b83a2
package org.springframework.samples.petclinic.config;
import java.util.concurrent.TimeUnit;
import javax.cache.CacheManager;
import org.ehcache.config.CacheConfiguration;
import org.ehcache.config.builders.CacheConfigurationBuilder;
import org.ehcache.config.builders.ResourcePoolsBuilder;
import org.ehcache.config.units.EntryUnit;
import org.ehcache.expiry.Duration;
import org.ehcache.expiry.Expirations;
import org.ehcache.jsr107.Eh107Configuration;
import org.springframework.boot.autoconfigure.cache.JCacheManagerCustomizer;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
......@@ -11,4 +24,21 @@ import org.springframework.context.annotation.Profile;
@EnableCaching
@Profile("production")
public class CacheConfig {
@Bean
public JCacheManagerCustomizer cacheManagerCustomizer() {
return new JCacheManagerCustomizer() {
@Override
public void customize(CacheManager cacheManager) {
CacheConfiguration<Object, Object> config = CacheConfigurationBuilder
.newCacheConfigurationBuilder(Object.class, Object.class,
ResourcePoolsBuilder.newResourcePoolsBuilder()
.heap(100, EntryUnit.ENTRIES))
.withExpiry(Expirations.timeToLiveExpiration(Duration.of(60, TimeUnit.SECONDS)))
.build();
cacheManager.createCache("vets", Eh107Configuration.fromEhcacheCacheConfiguration(config));
}
};
}
}
src/main/resources/ehcache.xml deleted 100644 → 0
+ 0
− 17
View file @ 86458070
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="ehcache.xsd"
updateCheck="false">
<diskStore path="java.io.tmpdir"/>
<!-- objects are evicted from the cache every 60 seconds -->
<cache name="vets"
timeToLiveSeconds="60"
maxElementsInMemory="100"
eternal="false"
overflowToDisk="false"
maxElementsOnDisk="10000000"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="1"
memoryStoreEvictionPolicy="LRU"/>
</ehcache>
src/main/resources/ehcache.xsd deleted 100644 → 0
+ 0
− 419
View file @ 86458070
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" version="1.7">
<xs:element name="ehcache">
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="1" minOccurs="0" ref="managementRESTService"/>
<xs:element maxOccurs="1" minOccurs="0" ref="diskStore"/>
<xs:element maxOccurs="1" minOccurs="0" ref="sizeOfPolicy"/>
<xs:element maxOccurs="1" minOccurs="0" ref="transactionManagerLookup"/>
<xs:element maxOccurs="1" minOccurs="0" ref="cacheManagerEventListenerFactory"/>
<xs:element maxOccurs="unbounded" minOccurs="0" ref="cacheManagerPeerProviderFactory"/>
<xs:element maxOccurs="unbounded" minOccurs="0" ref="cacheManagerPeerListenerFactory"/>
<xs:element maxOccurs="1" minOccurs="0" ref="terracottaConfig"/>
<xs:element maxOccurs="1" minOccurs="0" ref="defaultCache"/>
<xs:element maxOccurs="unbounded" minOccurs="0" ref="cache"/>
</xs:sequence>
<xs:attribute name="name" use="optional"/>
<xs:attribute default="true" name="updateCheck" type="xs:boolean" use="optional"/>
<xs:attribute default="autodetect" name="monitoring" type="monitoringType" use="optional"/>
<xs:attribute default="true" name="dynamicConfig" type="xs:boolean" use="optional"/>
<xs:attribute default="15" name="defaultTransactionTimeoutInSeconds" type="xs:integer" use="optional"/>
<xs:attribute default="0" name="maxBytesLocalHeap" type="memoryUnitOrPercentage" use="optional"/>
<xs:attribute default="0" name="maxBytesLocalOffHeap" type="memoryUnit" use="optional"/>
<xs:attribute default="0" name="maxBytesLocalDisk" type="memoryUnit" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="managementRESTService">
<xs:complexType>
<xs:attribute name="enabled" type="xs:boolean" use="optional"/>
<xs:attribute name="bind" use="optional"/>
<xs:attribute name="securityServiceLocation" use="optional"/>
<xs:attribute name="securityServiceTimeout" use="optional" type="xs:integer"/>
<xs:attribute name="sslEnabled" use="optional" type="xs:boolean"/>
<xs:attribute name="needClientAuth" use="optional" type="xs:boolean"/>
<xs:attribute name="sampleHistorySize" use="optional" type="xs:integer"/>
<xs:attribute name="sampleIntervalSeconds" use="optional" type="xs:integer"/>
<xs:attribute name="sampleSearchIntervalSeconds" use="optional" type="xs:integer"/>
</xs:complexType>
</xs:element>
<xs:element name="diskStore">
<xs:complexType>
<xs:attribute name="path" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="transactionManagerLookup">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="cacheManagerEventListenerFactory">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="cacheManagerPeerProviderFactory">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="cacheManagerPeerListenerFactory">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="terracottaConfig">
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="1" minOccurs="0" name="tc-config">
<xs:complexType>
<xs:sequence>
<xs:any maxOccurs="unbounded" minOccurs="0" processContents="skip"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute default="localhost:9510" name="url" use="optional"/>
<xs:attribute name="rejoin" type="xs:boolean" use="optional" default="false"/>
</xs:complexType>
</xs:element>
<!-- add clone support for addition of cacheExceptionHandler. Important! -->
<xs:element name="defaultCache">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheEventListenerFactory"/>
<xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheExtensionFactory"/>
<xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheLoaderFactory"/>
<xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheDecoratorFactory"/>
<xs:element minOccurs="0" maxOccurs="1" ref="bootstrapCacheLoaderFactory"/>
<xs:element minOccurs="0" maxOccurs="1" ref="cacheExceptionHandlerFactory"/>
<xs:element minOccurs="0" maxOccurs="1" ref="pinning"/>
<xs:element minOccurs="0" maxOccurs="1" ref="terracotta"/>
<xs:element minOccurs="0" maxOccurs="1" ref="cacheWriter"/>
<xs:element minOccurs="0" maxOccurs="1" ref="copyStrategy"/>
<xs:element minOccurs="0" maxOccurs="1" ref="elementValueComparator"/>
<xs:element minOccurs="0" maxOccurs="1" ref="sizeOfPolicy"/>
<xs:element minOccurs="0" maxOccurs="1" ref="persistence"/>
</xs:sequence>
<xs:attribute name="diskExpiryThreadIntervalSeconds" type="xs:integer" use="optional"/>
<xs:attribute name="diskSpoolBufferSizeMB" type="xs:integer" use="optional"/>
<xs:attribute name="diskPersistent" type="xs:boolean" use="optional"/>
<xs:attribute name="diskAccessStripes" type="xs:integer" use="optional" default="1"/>
<xs:attribute name="eternal" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="maxElementsInMemory" type="xs:integer" use="optional"/>
<xs:attribute name="maxEntriesLocalHeap" type="xs:integer" use="optional"/>
<xs:attribute name="clearOnFlush" type="xs:boolean" use="optional"/>
<xs:attribute name="memoryStoreEvictionPolicy" type="xs:string" use="optional"/>
<xs:attribute name="overflowToDisk" type="xs:boolean" use="optional"/>
<xs:attribute name="timeToIdleSeconds" type="xs:integer" use="optional"/>
<xs:attribute name="timeToLiveSeconds" type="xs:integer" use="optional"/>
<xs:attribute name="maxElementsOnDisk" type="xs:integer" use="optional"/>
<xs:attribute name="maxEntriesLocalDisk" type="xs:integer" use="optional"/>
<xs:attribute name="transactionalMode" type="transactionalMode" use="optional" default="off"/>
<xs:attribute name="statistics" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="copyOnRead" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="copyOnWrite" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="cacheLoaderTimeoutMillis" type="xs:integer" use="optional" default="0"/>
<xs:attribute name="overflowToOffHeap" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="maxMemoryOffHeap" type="xs:string" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="cache">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheEventListenerFactory"/>
<xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheExtensionFactory"/>
<xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheLoaderFactory"/>
<xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheDecoratorFactory"/>
<xs:element minOccurs="0" maxOccurs="1" ref="bootstrapCacheLoaderFactory"/>
<xs:element minOccurs="0" maxOccurs="1" ref="cacheExceptionHandlerFactory"/>
<xs:element minOccurs="0" maxOccurs="1" ref="pinning"/>
<xs:element minOccurs="0" maxOccurs="1" ref="terracotta"/>
<xs:element minOccurs="0" maxOccurs="1" ref="cacheWriter"/>
<xs:element minOccurs="0" maxOccurs="1" ref="copyStrategy"/>
<xs:element minOccurs="0" maxOccurs="1" ref="searchable"/>
<xs:element minOccurs="0" maxOccurs="1" ref="elementValueComparator"/>
<xs:element minOccurs="0" maxOccurs="1" ref="sizeOfPolicy"/>
<xs:element minOccurs="0" maxOccurs="1" ref="persistence"/>
</xs:sequence>
<xs:attribute name="diskExpiryThreadIntervalSeconds" type="xs:integer" use="optional"/>
<xs:attribute name="diskSpoolBufferSizeMB" type="xs:integer" use="optional"/>
<xs:attribute name="diskPersistent" type="xs:boolean" use="optional"/>
<xs:attribute name="diskAccessStripes" type="xs:integer" use="optional" default="1"/>
<xs:attribute name="eternal" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="maxElementsInMemory" type="xs:integer" use="optional"/>
<xs:attribute name="maxEntriesLocalHeap" type="xs:integer" use="optional"/>
<xs:attribute name="memoryStoreEvictionPolicy" type="xs:string" use="optional"/>
<xs:attribute name="clearOnFlush" type="xs:boolean" use="optional"/>
<xs:attribute name="name" type="xs:string" use="required"/>
<xs:attribute name="overflowToDisk" type="xs:boolean" use="optional"/>
<xs:attribute name="timeToIdleSeconds" type="xs:integer" use="optional"/>
<xs:attribute name="timeToLiveSeconds" type="xs:integer" use="optional"/>
<xs:attribute name="maxElementsOnDisk" type="xs:integer" use="optional"/>
<xs:attribute name="maxEntriesLocalDisk" type="xs:integer" use="optional"/>
<xs:attribute name="transactionalMode" type="transactionalMode" use="optional" default="off"/>
<xs:attribute name="statistics" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="copyOnRead" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="copyOnWrite" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="logging" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="cacheLoaderTimeoutMillis" type="xs:integer" use="optional" default="0"/>
<xs:attribute name="overflowToOffHeap" type="xs:boolean" use="optional" default="false"/>
<xs:attribute name="maxMemoryOffHeap" type="xs:string" use="optional"/>
<xs:attribute default="0" name="maxBytesLocalHeap" type="memoryUnitOrPercentage" use="optional"/>
<xs:attribute default="0" name="maxBytesLocalOffHeap" type="memoryUnitOrPercentage" use="optional"/>
<xs:attribute default="0" name="maxBytesLocalDisk" type="memoryUnitOrPercentage" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="cacheEventListenerFactory">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
<xs:attribute name="listenFor" use="optional" type="notificationScope" default="all"/>
</xs:complexType>
</xs:element>
<xs:element name="bootstrapCacheLoaderFactory">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="cacheExtensionFactory">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="cacheExceptionHandlerFactory">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="cacheLoaderFactory">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="cacheDecoratorFactory">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="searchAttribute">
<xs:complexType>
<xs:attribute name="name" use="required" type="xs:string"/>
<xs:attribute name="expression" type="xs:string"/>
<xs:attribute name="class" type="xs:string"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="searchable">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" maxOccurs="unbounded" ref="searchAttribute"/>
</xs:sequence>
<xs:attribute name="keys" use="optional" type="xs:boolean" default="true"/>
<xs:attribute name="values" use="optional" type="xs:boolean" default="true"/>
</xs:complexType>
</xs:element>
<xs:element name="pinning">
<xs:complexType>
<xs:attribute name="store" use="required" type="pinningStoreType"/>
</xs:complexType>
</xs:element>
<xs:element name="terracotta">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" maxOccurs="1" ref="nonstop"/>
</xs:sequence>
<xs:attribute name="clustered" use="optional" type="xs:boolean" default="true"/>
<xs:attribute name="valueMode" use="optional" type="terracottaCacheValueType" default="serialization"/>
<xs:attribute name="coherentReads" use="optional" type="xs:boolean" default="true"/>
<xs:attribute name="localKeyCache" use="optional" type="xs:boolean" default="false"/>
<xs:attribute name="localKeyCacheSize" use="optional" type="xs:positiveInteger" default="300000"/>
<xs:attribute name="orphanEviction" use="optional" type="xs:boolean" default="true"/>
<xs:attribute name="orphanEvictionPeriod" use="optional" type="xs:positiveInteger" default="4"/>
<xs:attribute name="copyOnRead" use="optional" type="xs:boolean" default="false"/>
<xs:attribute name="coherent" use="optional" type="xs:boolean" default="false"/>
<xs:attribute name="consistency" use="optional" type="consistencyType" default="eventual"/>
<xs:attribute name="synchronousWrites" use="optional" type="xs:boolean" default="false"/>
<xs:attribute name="concurrency" use="optional" type="xs:nonNegativeInteger" default="0"/>
<xs:attribute name="localCacheEnabled" use="optional" type="xs:boolean" default="true"/>
<xs:attribute name="compressionEnabled" use="optional" type="xs:boolean" default="false"/>
</xs:complexType>
</xs:element>
<xs:simpleType name="consistencyType">
<xs:restriction base="xs:string">
<xs:enumeration value="strong"/>
<xs:enumeration value="eventual"/>
</xs:restriction>
</xs:simpleType>
<xs:element name="nonstop">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" maxOccurs="1" ref="timeoutBehavior"/>
</xs:sequence>
<xs:attribute name="enabled" use="optional" type="xs:boolean" default="true"/>
<xs:attribute name="immediateTimeout" use="optional" type="xs:boolean" default="false"/>
<xs:attribute name="timeoutMillis" use="optional" type="xs:positiveInteger" default="30000"/>
</xs:complexType>
</xs:element>
<xs:element name="timeoutBehavior">
<xs:complexType>
<xs:attribute name="type" use="optional" type="timeoutBehaviorType" default="exception"/>
<xs:attribute name="properties" use="optional" default=""/>
<xs:attribute name="propertySeparator" use="optional" default=","/>
</xs:complexType>
</xs:element>
<xs:simpleType name="timeoutBehaviorType">
<xs:restriction base="xs:string">
<xs:enumeration value="noop"/>
<xs:enumeration value="exception"/>
<xs:enumeration value="localReads"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="monitoringType">
<xs:restriction base="xs:string">
<xs:enumeration value="autodetect"/>
<xs:enumeration value="on"/>
<xs:enumeration value="off"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="pinningStoreType">
<xs:restriction base="xs:string">
<xs:enumeration value="localHeap"/>
<xs:enumeration value="localMemory"/>
<xs:enumeration value="inCache"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="terracottaCacheValueType">
<xs:restriction base="xs:string">
<xs:enumeration value="serialization"/>
<xs:enumeration value="identity"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="transactionalMode">
<xs:restriction base="xs:string">
<xs:enumeration value="off"/>
<xs:enumeration value="xa_strict"/>
<xs:enumeration value="xa"/>
<xs:enumeration value="local"/>
</xs:restriction>
</xs:simpleType>
<xs:element name="cacheWriter">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" maxOccurs="1" ref="cacheWriterFactory"/>
</xs:sequence>
<xs:attribute name="writeMode" use="optional" type="writeModeType" default="write-through"/>
<xs:attribute name="notifyListenersOnException" use="optional" type="xs:boolean" default="false"/>
<xs:attribute name="minWriteDelay" use="optional" type="xs:nonNegativeInteger" default="1"/>
<xs:attribute name="maxWriteDelay" use="optional" type="xs:nonNegativeInteger" default="1"/>
<xs:attribute name="rateLimitPerSecond" use="optional" type="xs:nonNegativeInteger" default="0"/>
<xs:attribute name="writeCoalescing" use="optional" type="xs:boolean" default="false"/>
<xs:attribute name="writeBatching" use="optional" type="xs:boolean" default="false"/>
<xs:attribute name="writeBatchSize" use="optional" type="xs:positiveInteger" default="1"/>
<xs:attribute name="retryAttempts" use="optional" type="xs:nonNegativeInteger" default="0"/>
<xs:attribute name="retryAttemptDelaySeconds" use="optional" type="xs:nonNegativeInteger" default="1"/>
<xs:attribute name="writeBehindConcurrency" use="optional" type="xs:nonNegativeInteger" default="1"/>
<xs:attribute name="writeBehindMaxQueueSize" use="optional" type="xs:nonNegativeInteger" default="0"/>
</xs:complexType>
</xs:element>
<xs:simpleType name="writeModeType">
<xs:restriction base="xs:string">
<xs:enumeration value="write-through"/>
<xs:enumeration value="write-behind"/>
</xs:restriction>
</xs:simpleType>
<xs:element name="cacheWriterFactory">
<xs:complexType>
<xs:attribute name="class" use="required"/>
<xs:attribute name="properties" use="optional"/>
<xs:attribute name="propertySeparator" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="copyStrategy">
<xs:complexType>
<xs:attribute name="class" use="required" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="elementValueComparator">
<xs:complexType>
<xs:attribute name="class" use="required" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="sizeOfPolicy">
<xs:complexType>
<xs:attribute name="maxDepth" use="required" type="xs:integer"/>
<xs:attribute name="maxDepthExceededBehavior" use="optional" default="continue"
type="maxDepthExceededBehavior"/>
</xs:complexType>
</xs:element>
<xs:element name="persistence">
<xs:complexType>
<xs:attribute name="strategy" use="required" type="persistenceStrategy"/>
<xs:attribute name="synchronousWrites" use="optional" default="false" type="xs:boolean"/>
</xs:complexType>
</xs:element>
<xs:simpleType name="persistenceStrategy">
<xs:restriction base="xs:string">
<xs:enumeration value="localTempSwap"/>
<xs:enumeration value="localRestartable"/>
<xs:enumeration value="none"/>
<xs:enumeration value="distributed"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="maxDepthExceededBehavior">
<xs:restriction base="xs:string">
<xs:enumeration value="continue"/>
<xs:enumeration value="abort"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="notificationScope">
<xs:restriction base="xs:string">
<xs:enumeration value="local"/>
<xs:enumeration value="remote"/>
<xs:enumeration value="all"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="memoryUnit">
<xs:restriction base="xs:token">
<xs:pattern value="[0-9]+[bBkKmMgG]?"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="memoryUnitOrPercentage">
<xs:restriction base="xs:token">
<xs:pattern value="([0-9]+[bBkKmMgG]?|100%|[0-9]{1,2}%)"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>
\ No newline at end of file
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