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

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.ColumnQualifierFilter
All Implemented Interfaces:
OptionDescriber, SortedKeyValueIterator<Key,Value>

public class ColumnQualifierFilter
extends Filter


Nested Class Summary
 
Nested classes/interfaces inherited from interface org.apache.accumulo.core.iterators.OptionDescriber
OptionDescriber.IteratorOptions
 
Field Summary
 
Fields inherited from class org.apache.accumulo.core.iterators.Filter
NEGATE
 
Constructor Summary
ColumnQualifierFilter()
           
ColumnQualifierFilter(SortedKeyValueIterator<Key,Value> iterator, HashSet<ByteSequence> columnFamilies, HashMap<ByteSequence,HashSet<ByteSequence>> columnsQualifiers, boolean scanColumns)
           
ColumnQualifierFilter(SortedKeyValueIterator<Key,Value> iterator, HashSet<Column> columns)
           
 
Method Summary
 boolean accept(Key key, Value v)
           
 SortedKeyValueIterator<Key,Value> deepCopy(IteratorEnvironment env)
          Creates a deep copy of this iterator as though seek had not yet been called.
 void init(HashSet<Column> columns)
           
 
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
 

Constructor Detail

ColumnQualifierFilter

public ColumnQualifierFilter()

ColumnQualifierFilter

public ColumnQualifierFilter(SortedKeyValueIterator<Key,Value> iterator,
                             HashSet<Column> columns)

ColumnQualifierFilter

public ColumnQualifierFilter(SortedKeyValueIterator<Key,Value> iterator,
                             HashSet<ByteSequence> columnFamilies,
                             HashMap<ByteSequence,HashSet<ByteSequence>> columnsQualifiers,
                             boolean scanColumns)
Method Detail

accept

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

init

public void init(HashSet<Column> columns)

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).


Copyright © 2014 The Apache Software Foundation. All Rights Reserved.