Overview | Package | Class | Use | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## org.apache.lucene.search
Class CachingWrapperFilter

    java.lang.Object
      org.apache.lucene.search.Filter
          org.apache.lucene.search.CachingWrapperFilter

All Implemented Interfaces:
  Serializable

public class CachingWrapperFilter
extends Filter

Wraps another filters result and caches it. The caching behavior is like `QueryFilter`. The purpose is to allow filters to simply filter, and then wrap with this class to add caching, keeping the two concerns decoupled yet composable.

See Also:
  Serialized Form

Constructor Summary
`CachingWrapperFilter(Filter filter)`

Method Summary
`BitSet` | `bits(IndexReader reader)` Returns a BitSet with true for documents which should be permitted in search results, and false for those that should not.
`String` | `toString()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### CachingWrapperFilter

    public CachingWrapperFilter(Filter filter)

Parameters:
  `filter` - Filter to cache results of

Method Detail

### bits

    public BitSet bits(IndexReader reader)
                throws IOException

  Description copied from class: `Filter`
  Returns a BitSet with true for documents which should be permitted in search results, and false for those that should not.

  Specified by:
    `bits` in class `Filter`
  Throws:
    `IOException`

### toString

    public String toString()

Overview | Package | Class | Use | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

Copyright © 2000-2005 Apache Software Foundation. All Rights Reserved.