asmhatre
a9867c0423
A Spring Boot 4.1.1 module whose test suite is the evidence for the article: 20 tests producing 22 transcripts under docs/output/, plus 12 documentation chapters. Findings the build pins: - @EnableCaching has no exposeProxy attribute; the widely-copied @EnableCaching(exposeProxy = true) does not compile. - Two methods sharing a cache name and an argument type share a key space, and one silently serves the other's answers. - The documented cache-provider detection order does not match CacheType's enum order in 4.1.1: COUCHBASE before INFINISPAN, and CACHE2K before CAFFEINE. - beforeInvocation = true is NOT deferred by TransactionAwareCacheManagerProxy on 7.0.9 - doEvict picks evictIfPresent, which the decorator does not intercept. - Four of five invalid declarations start a clean context and throw at the first call. - Caffeine on the classpath silently displaces the simple provider.
50 lines
2.7 KiB
Plaintext
50 lines
2.7 KiB
Plaintext
# Why beforeInvocation=true is not deferred by TransactionAwareCacheManagerProxy
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$ javap -c -p org.springframework.cache.interceptor.AbstractCacheInvoker # spring-context-7.0.9.jar
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protected void doEvict(org.springframework.cache.Cache, java.lang.Object, boolean);
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Code:
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0: iload_3
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1: ifeq 15
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4: aload_1
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5: aload_2
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6: invokeinterface #83, 2 // InterfaceMethod org/springframework/cache/Cache.evictIfPresent:(Ljava/lang/Object;)Z
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11: pop
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12: goto 22
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15: aload_1
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16: aload_2
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17: invokeinterface #87, 2 // InterfaceMethod org/springframework/cache/Cache.evict:(Ljava/lang/Object;)V
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22: goto 40
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25: astore 4
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$ javap -c -p org.springframework.cache.transaction.TransactionAwareCacheDecorator # spring-context-support-7.0.9.jar
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public void evict(java.lang.Object);
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Code:
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0: invokestatic #48 // Method org/springframework/transaction/support/TransactionSynchronizationManager.isSynchronizationActive:()Z
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3: ifeq 21
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6: new #71 // class org/springframework/cache/transaction/TransactionAwareCacheDecorator$2
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9: dup
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10: aload_0
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11: aload_1
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12: invokespecial #73 // Method org/springframework/cache/transaction/TransactionAwareCacheDecorator$2."<init>":(Lorg/springframework/cache/transaction/TransactionAwareCacheDecorator;Ljava/lang/Object;)V
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15: invokestatic #59 // Method org/springframework/transaction/support/TransactionSynchronizationManager.registerSynchronization:(Lorg/springframework/transaction/support/TransactionSynchronization;)V
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18: goto 31
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21: aload_0
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22: getfield #15 // Field targetCache:Lorg/springframework/cache/Cache;
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25: aload_1
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public boolean evictIfPresent(java.lang.Object);
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Code:
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0: aload_0
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1: getfield #15 // Field targetCache:Lorg/springframework/cache/Cache;
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4: aload_1
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5: invokeinterface #80, 2 // InterfaceMethod org/springframework/cache/Cache.evictIfPresent:(Ljava/lang/Object;)Z
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10: ireturn
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doEvict(cache, key, true) -> Cache.evictIfPresent -> straight to the target cache
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doEvict(cache, key, false) -> Cache.evict -> registerSynchronization, runs after commit
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spring-framework#23192 reported beforeInvocation=true being swallowed by the
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transaction-aware decorator. On 7.0.9 it is not: the immediate path uses a method
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the decorator does not intercept. Note also that the decorator ships in
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spring-context-support, not spring-context.
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