Class CacheInterceptorAdapter<K,V>
- java.lang.Object
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- org.apache.ignite.cache.CacheInterceptorAdapter<K,V>
 
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- All Implemented Interfaces:
- Serializable,- CacheInterceptor<K,V>
 
 public class CacheInterceptorAdapter<K,V> extends Object implements CacheInterceptor<K,V> Cache interceptor convenience adapter. It provides no-op implementations for all interceptor callbacks.- See Also:
- Serialized Form
 
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Constructor SummaryConstructors Constructor Description CacheInterceptorAdapter()
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Method SummaryAll Methods Instance Methods Concrete Methods Modifier and Type Method Description voidonAfterPut(javax.cache.Cache.Entry<K,V> entry)This method is called after new value has been stored.voidonAfterRemove(javax.cache.Cache.Entry<K,V> entry)This method is called after value has been removed.VonBeforePut(javax.cache.Cache.Entry<K,V> entry, V newVal)This method is called withinIgniteCache.put(Object, Object)and similar operations before new value is stored in cache.@Nullable IgniteBiTuple<Boolean,V>onBeforeRemove(javax.cache.Cache.Entry<K,V> entry)This method is called withinIgniteCache.remove(Object)and similar operations to provide control over returned value.VonGet(K key, V val)This method is called withinIgniteCache.get(Object)and similar operations to provide control over returned value.
 
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Method Detail- 
onGet@Nullable public V onGet(K key, V val) This method is called withinIgniteCache.get(Object)and similar operations to provide control over returned value.If this method returns null, thenget()operation results innullas well.This method should not throw any exception. - Specified by:
- onGetin interface- CacheInterceptor<K,V>
- Parameters:
- key- Key.
- val- Value mapped to- keyat the moment of- get()operation.
- Returns:
- The new value to be returned as result of get()operation.
- See Also:
- Cache.get(Object)
 
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onBeforePut@Nullable public V onBeforePut(javax.cache.Cache.Entry<K,V> entry, V newVal) This method is called withinIgniteCache.put(Object, Object)and similar operations before new value is stored in cache.Implementations should not execute any complex logic, including locking, networking or cache operations, as it may lead to deadlock, since this method is called from sensitive synchronization blocks. This method should not throw any exception. IMPORTANT: for this method to take affect, newValand the returned value have to be different instances. I.e., you should not mutatenewValdirectly, but instead create a copy, update it and then return from the interceptor.- Specified by:
- onBeforePutin interface- CacheInterceptor<K,V>
- Parameters:
- entry- Old entry. If- CacheConfiguration.isCopyOnRead()is- true, then is copy.
- newVal- New value.
- Returns:
- Value to be put to cache. Returning nullcancels the update.
- See Also:
- IgniteCache.put(Object, Object)
 
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onAfterPutpublic void onAfterPut(javax.cache.Cache.Entry<K,V> entry) This method is called after new value has been stored.Implementations should not execute any complex logic, including locking, networking or cache operations, as it may lead to deadlock, since this method is called from sensitive synchronization blocks. This method should not throw any exception. - Specified by:
- onAfterPutin interface- CacheInterceptor<K,V>
- Parameters:
- entry- Current entry. If- CacheConfiguration.isCopyOnRead()is- truethen entry is a copy.
 
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onBeforeRemove@Nullable public @Nullable IgniteBiTuple<Boolean,V> onBeforeRemove(javax.cache.Cache.Entry<K,V> entry) This method is called withinIgniteCache.remove(Object)and similar operations to provide control over returned value.Implementations should not execute any complex logic, including locking, networking or cache operations, as it may lead to deadlock, since this method is called from sensitive synchronization blocks. This method should not throw any exception. - Specified by:
- onBeforeRemovein interface- CacheInterceptor<K,V>
- Parameters:
- entry- Old entry. If- CacheConfiguration.isCopyOnRead()is- truethen entry is a copy.
- Returns:
- Tuple. The first value is the flag whether remove should be cancelled or not.
      The second is the value to be returned as result of remove()operation, may benull.
- See Also:
- IgniteCache.remove(Object)
 
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onAfterRemovepublic void onAfterRemove(javax.cache.Cache.Entry<K,V> entry) This method is called after value has been removed.Implementations should not execute any complex logic, including locking, networking or cache operations, as it may lead to deadlock, since this method is called from sensitive synchronization blocks. This method should not throw any exception. - Specified by:
- onAfterRemovein interface- CacheInterceptor<K,V>
- Parameters:
- entry- Removed entry. If- CacheConfiguration.isCopyOnRead()is- truethen entry is a copy.
 
 
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