Package org.infinispan.hibernate.cache.commons.access

Interface AccessDelegate

All Known Implementing Classes:
InvalidationCacheAccessDelegate, NonStrictAccessDelegate, NonTxInvalidationCacheAccessDelegate, TombstoneAccessDelegate, TxInvalidationCacheAccessDelegate
public interface AccessDelegate
Defines the strategy for access to entity or collection data in a Infinispan instance.

The intent of this class is to encapsulate common code and serve as a delegate for

invalid reference 
org.hibernate.cache.spi.access.EntityRegionAccessStrategy
and
invalid reference 
org.hibernate.cache.spi.access.CollectionRegionAccessStrategy
implementations.
Author:
Radim Vansa <rvansa@redhat.com>

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    afterInsert(Object session, Object key, Object value, Object version)
    Called after an item has been inserted (after the transaction completes), instead of calling release().
    boolean
    afterUpdate(Object session, Object key, Object value, Object currentVersion, Object previousVersion, org.hibernate.cache.spi.access.SoftLock lock)
    Called after an item has been updated (after the transaction completes), instead of calling release().
    void
    evict(Object key)
    Forcibly evict an item from the cache immediately without regard for transaction isolation.
    void
    evictAll()
    Forcibly evict all items from the cache immediately without regard for transaction isolation.
    Object
    get(Object session, Object key, long txTimestamp)
     
    boolean
    insert(Object session, Object key, Object value, Object version)
    Called after an item has been inserted (before the transaction completes), instead of calling evict().
    void
    lockAll()
    Called just before the delegate will have all entries removed.
    boolean
    putFromLoad(Object session, Object key, Object value, long txTimestamp, Object version)
    Attempt to cache an object, after loading from the database.
    boolean
    putFromLoad(Object session, Object key, Object value, long txTimestamp, Object version, boolean minimalPutOverride)
    Attempt to cache an object, after loading from the database, explicitly specifying the minimalPut behavior.
    void
    remove(Object session, Object key)
    Called after an item has become stale (before the transaction completes).
    void
    removeAll()
    Called to evict data from the entire region
    void
    unlockAll()
    Called just after the delegate had all entries removed via removeAll().
    void
    unlockItem(Object session, Object key)
    Called when we have finished the attempted update/delete (which may or may not have been successful), after transaction completion.
    boolean
    update(Object session, Object key, Object value, Object currentVersion, Object previousVersion)
    Called after an item has been updated (before the transaction completes), instead of calling evict().

  • Method Details

    • get

      Object get(Object session, Object key, long txTimestamp) throws org.hibernate.cache.CacheException
      Throws:
      org.hibernate.cache.CacheException

    • putFromLoad

      boolean putFromLoad(Object session, Object key, Object value, long txTimestamp, Object version)
      Attempt to cache an object, after loading from the database.
      Parameters:
      session - Current session
      key - The item key
      value - The item
      txTimestamp - a timestamp prior to the transaction start time
      version - the item version number
      Returns:
      true if the object was successfully cached

    • putFromLoad

      boolean putFromLoad(Object session, Object key, Object value, long txTimestamp, Object version, boolean minimalPutOverride) throws org.hibernate.cache.CacheException
      Attempt to cache an object, after loading from the database, explicitly specifying the minimalPut behavior.
      Parameters:
      session - Current session.
      key - The item key
      value - The item
      txTimestamp - a timestamp prior to the transaction start time
      version - the item version number
      minimalPutOverride - Explicit minimalPut flag
      Returns:
      true if the object was successfully cached
      Throws:
      org.hibernate.cache.CacheException - Propogated from underlying Region

    • insert

      boolean insert(Object session, Object key, Object value, Object version) throws org.hibernate.cache.CacheException
      Called after an item has been inserted (before the transaction completes), instead of calling evict().
      Parameters:
      session - Current session
      key - The item key
      value - The item
      version - The item's version value
      Returns:
      Were the contents of the cache actual changed by this operation?
      Throws:
      org.hibernate.cache.CacheException - if the insert fails

    • update

      boolean update(Object session, Object key, Object value, Object currentVersion, Object previousVersion) throws org.hibernate.cache.CacheException
      Called after an item has been updated (before the transaction completes), instead of calling evict().
      Parameters:
      session - Current session
      key - The item key
      value - The item
      currentVersion - The item's current version value
      previousVersion - The item's previous version value
      Returns:
      Whether the contents of the cache actual changed by this operation
      Throws:
      org.hibernate.cache.CacheException - if the update fails

    • remove

      void remove(Object session, Object key) throws org.hibernate.cache.CacheException
      Called after an item has become stale (before the transaction completes).
      Parameters:
      session - Current session
      key - The key of the item to remove
      Throws:
      org.hibernate.cache.CacheException - if removing the cached item fails

    • lockAll

      void lockAll() throws org.hibernate.cache.CacheException
      Called just before the delegate will have all entries removed. Any work to prevent concurrent modifications while this occurs should happen here
      Throws:
      org.hibernate.cache.CacheException - if locking had an issue

    • unlockAll

      void unlockAll() throws org.hibernate.cache.CacheException
      Called just after the delegate had all entries removed via removeAll(). Any work required to allow for new modifications to happen should be done here
      Throws:
      org.hibernate.cache.CacheException - if unlocking had an issue

    • removeAll

      void removeAll() throws org.hibernate.cache.CacheException
      Called to evict data from the entire region
      Throws:
      org.hibernate.cache.CacheException - if eviction the region fails

    • evict

      void evict(Object key) throws org.hibernate.cache.CacheException
      Forcibly evict an item from the cache immediately without regard for transaction isolation.
      Parameters:
      key - The key of the item to remove
      Throws:
      org.hibernate.cache.CacheException - if evicting the item fails

    • evictAll

      void evictAll() throws org.hibernate.cache.CacheException
      Forcibly evict all items from the cache immediately without regard for transaction isolation.
      Throws:
      org.hibernate.cache.CacheException - if evicting items fails

    • unlockItem

      void unlockItem(Object session, Object key) throws org.hibernate.cache.CacheException
      Called when we have finished the attempted update/delete (which may or may not have been successful), after transaction completion. This method is used by "asynchronous" concurrency strategies.
      Parameters:
      session -
      key - The item key
      Throws:
      org.hibernate.cache.CacheException - Propogated from underlying Region

    • afterInsert

      boolean afterInsert(Object session, Object key, Object value, Object version)
      Called after an item has been inserted (after the transaction completes), instead of calling release(). This method is used by "asynchronous" concurrency strategies.
      Parameters:
      session -
      key - The item key
      value - The item
      version - The item's version value
      Returns:
      Were the contents of the cache actual changed by this operation?
      Throws:
      org.hibernate.cache.CacheException - Propagated from underlying Region

    • afterUpdate

      boolean afterUpdate(Object session, Object key, Object value, Object currentVersion, Object previousVersion, org.hibernate.cache.spi.access.SoftLock lock)
      Called after an item has been updated (after the transaction completes), instead of calling release(). This method is used by "asynchronous" concurrency strategies.
      Parameters:
      session -
      key - The item key
      value - The item
      currentVersion - The item's current version value
      previousVersion - The item's previous version value
      lock - The lock previously obtained from
      invalid reference 
      #lockItem
      Returns:
      Were the contents of the cache actual changed by this operation?
      Throws:
      org.hibernate.cache.CacheException - Propagated from underlying Region