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Merge pull request #335 from cruftex:fix-cache-comment

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* pr/335:
  Polish "Clarify cache configuration"
  Clarify cache configuration
This commit is contained in:
Stephane Nicoll 2018-07-13 16:58:28 +02:00
commit 5f7574570e
1 changed files with 13 additions and 4 deletions
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17
src/main/java/org/springframework/samples/petclinic/system/CacheConfiguration.java
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@ -1,12 +1,16 @@
package org.springframework.samples.petclinic.system; package org.springframework.samples.petclinic.system;
import javax.cache.configuration.MutableConfiguration;
import org.springframework.boot.autoconfigure.cache.JCacheManagerCustomizer; import org.springframework.boot.autoconfigure.cache.JCacheManagerCustomizer;
import org.springframework.cache.annotation.EnableCaching; import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.Configuration;
import javax.cache.configuration.MutableConfiguration;
/**
* Cache configuration intended for caches providing the JCache API. This configuration creates the used cache for the
* application and enables statistics that become accessible via JMX.
*/
@Configuration @Configuration
@EnableCaching @EnableCaching
class CacheConfiguration { class CacheConfiguration {
@ -18,9 +22,14 @@ class CacheConfiguration {
}; };
} }
/**
* Create a simple configuration that enable statistics via the JCache programmatic configuration API.
* <p>
* Within the configuration object that is provided by the JCache API standard, there is only a very limited set of
* configuration options. The really relevant configuration options (like the size limit) must be set via a
* configuration mechanism that is provided by the selected JCache implementation.
*/
private javax.cache.configuration.Configuration<Object, Object> cacheConfiguration() { private javax.cache.configuration.Configuration<Object, Object> cacheConfiguration() {
// Create a cache using infinite heap. A real application will want to use a more fine-grained configuration,
// possibly using an implementation-dependent API
return new MutableConfiguration<>().setStatisticsEnabled(true); return new MutableConfiguration<>().setStatisticsEnabled(true);
} }