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See:
Description
| Interface Summary | |
|---|---|
| Cache | A cache, being a mechanism for efficient temporary storage of objects for the purpose of improving the overall performance of an application system. |
| CacheBulk | This interface provides bulk operations support when the space interact with external data source. |
| CacheBulk.BulkEntry | Interface for an entry involved in a bulk operation. |
| CacheEntry | Each CacheEntry should implements this interface. |
| CacheIterator<E> | An iterator over a collection of candidates to be loaded into the space. |
| CacheIteratorFactory | This interface creates an iterator of matching candidates to be used by the following operations:
read, readMultiple, take or takeMultiple using null template , non null template and SQLQuery - where several objects can match a given template. |
| CacheLifeCycleManager | The CacheLifeCycleManager provides ability to control the life cycle of the CacheLoader and CacheStore implementation. |
| CacheLifeCycleManager.LifeCycleProperty | LifeCycleProperty holds the property indicators returned by the
underlying driver upon return of
CacheLifeCycleManager.init(String, String, String, Properties). |
| CacheListener | The listener interface for receiving cache events. |
| CacheLoader | The CacheLoader implementation is provided to ensure read-through behavior of the space. |
| CacheQuery | This CacheQuery used as argument for the following methods:
CacheIteratorFactory
CacheLoader.loadAll()
The CacheQuery encapsulated the read,readMultiple ,take,taleMultiple template. |
| CacheStore | The CacheStore implementation is provided to ensure read-through and write-through behavior of the space. |
| EvictionStrategy | EvictionStrategy decides which entry to evict when the cache reaches its limits. |
| IConverter | The IConverter Interface provides conversion methods when using GigaSpaces Entry internal representation - The IGSEntry. |
| Class Summary | |
|---|---|
| AbstractCacheLoader | This class used to provide conversion methods between user original object and GigaSpaces internal Entry representation - the IGSEntry. |
| Exception Summary | |
|---|---|
| CacheException | Description: CacheException is a generic exception, which indicates a cache error has occurred. |
The Write/Read through Interfaces and Space Cache Interfaces.
Write/Read Through achieved using CacheStore and CacheLoader interfaces.
These are called when space operations performed allowing the space to interact with external data sources.
Configuration
CacheLoader/Store is configured in space schema XML configuration file as a persistent adapter.
The space schema should include the following:
<space-config>
<persistent>
<enabled>true</enabled>
<!-- name of the storage adapter class to be used by the space -->
<StorageAdapterClass>com.j_spaces.sadapter.cache.CacheAdapter</StorageAdapterClass>
<!-- CacheLoader or CacheStore implementation class name that will be used by space -->
<CacheLoaderClass>com.j_spaces.examples.jdbccachestore.spaceapi.CacheLoaderImpl</CacheLoaderClass>
<DataBaseName>jdbc:hsqldb:testDB</DataBaseName>
<userName>sa</userName>
<password></password>
</persistent>
<engine>
<cache_policy>0</cache_policy>
</engine>
</space-config>
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