# Package org.hibernate.search.filter

- Interface Summary
  Interface | Description
  --- | ---
  FilterCachingStrategy | Defines the caching filter strategy implementations of getCachedFilter and addCachedFilter must be thread-safe
  FullTextFilter | Represents a `FullTextFilter` that is about to be applied.
  FullTextFilterImplementor |
  ShardSensitiveOnlyFilter | When using this class in @FullTextFilterDef.impl, Hibernate Search considers the filter to be only influencing the sharding strategy.

- Class Summary
  Class | Description
  --- | ---
  FilterKey | Deprecated Custom filter keys are deprecated and are scheduled for removal in Hibernate Search 6.
  StandardFilterKey | Deprecated Custom filter keys are deprecated and are scheduled for removal in Hibernate Search 6.

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