org.apache.accumulo.core.iterators.system
Class VisibilityFilter

java.lang.Object
  extended by org.apache.accumulo.core.iterators.WrappingIterator
      extended by org.apache.accumulo.core.iterators.Filter
          extended by org.apache.accumulo.core.iterators.system.VisibilityFilter
All Implemented Interfaces:
OptionDescriber, SortedKeyValueIterator<Key,Value>
Direct Known Subclasses:
VisibilityFilter

public class VisibilityFilter
extends Filter


Nested Class Summary
 
Nested classes/interfaces inherited from interface org.apache.accumulo.core.iterators.OptionDescriber
OptionDescriber.IteratorOptions
 
Field Summary
protected  org.apache.commons.collections.map.LRUMap cache
           
protected  org.apache.hadoop.io.Text defaultVisibility
           
protected  org.apache.hadoop.io.Text tmpVis
           
protected  VisibilityEvaluator ve
           
 
Fields inherited from class org.apache.accumulo.core.iterators.Filter
NEGATE
 
Constructor Summary
VisibilityFilter()
           
VisibilityFilter(SortedKeyValueIterator<Key,Value> iterator, Authorizations authorizations, byte[] defaultVisibility)
           
 
Method Summary
 boolean accept(Key k, Value v)
           
 SortedKeyValueIterator<Key,Value> deepCopy(IteratorEnvironment env)
          Creates a deep copy of this iterator as though seek had not yet been called.
 
Methods inherited from class org.apache.accumulo.core.iterators.Filter
describeOptions, findTop, init, next, seek, setNegate, validateOptions
 
Methods inherited from class org.apache.accumulo.core.iterators.WrappingIterator
getSource, getTopKey, getTopValue, hasTop, setSource
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

ve

protected VisibilityEvaluator ve

defaultVisibility

protected org.apache.hadoop.io.Text defaultVisibility

cache

protected org.apache.commons.collections.map.LRUMap cache

tmpVis

protected org.apache.hadoop.io.Text tmpVis
Constructor Detail

VisibilityFilter

public VisibilityFilter()

VisibilityFilter

public VisibilityFilter(SortedKeyValueIterator<Key,Value> iterator,
                        Authorizations authorizations,
                        byte[] defaultVisibility)
Method Detail

deepCopy

public SortedKeyValueIterator<Key,Value> deepCopy(IteratorEnvironment env)
Description copied from interface: SortedKeyValueIterator
Creates a deep copy of this iterator as though seek had not yet been called. init should be called on an iterator before deepCopy is called. init should not need to be called on the copy that is returned by deepCopy; that is, when necessary init should be called in the deepCopy method on the iterator it returns. The behavior is unspecified if init is called after deepCopy either on the original or the copy.

Specified by:
deepCopy in interface SortedKeyValueIterator<Key,Value>
Overrides:
deepCopy in class Filter
Parameters:
env - IteratorEnvironment environment in which iterator is being run.
Returns:
SortedKeyValueIterator a copy of this iterator (with the same source and settings).

accept

public boolean accept(Key k,
                      Value v)
Specified by:
accept in class Filter
Returns:
true if the key/value pair is accepted by the filter.


Copyright © 2013 Apache Accumulo Project. All Rights Reserved.