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

java.lang.Object
  org.apache.accumulo.core.iterators.WrappingIterator
      org.apache.accumulo.core.iterators.Filter
          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 Authorizations	authorizations
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

authorizations

protected Authorizations authorizations

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.