org.apache.accumulo.core.iterators
Class RegExIterator

java.lang.Object
  org.apache.accumulo.core.iterators.WrappingIterator
      org.apache.accumulo.core.iterators.SkippingIterator
          org.apache.accumulo.core.iterators.RegExIterator

All Implemented Interfaces:

OptionDescriber, SortedKeyValueIterator<Key,Value>

public class RegExIterator
extends SkippingIterator
implements OptionDescriber

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.accumulo.core.iterators.OptionDescriber

OptionDescriber.IteratorOptions

Constructor Summary

RegExIterator()

Method Summary

protected void	consume()
RegExIterator	deepCopy(IteratorEnvironment env) Creates a deep copy of this iterator as though seek had not yet been called.
OptionDescriber.IteratorOptions	describeOptions()
void	init(SortedKeyValueIterator<Key,Value> source, java.util.Map<java.lang.String,java.lang.String> options, IteratorEnvironment env) Initializes the iterator.
boolean	validateOptions(java.util.Map<java.lang.String,java.lang.String> options)

Methods inherited from class org.apache.accumulo.core.iterators.SkippingIterator

next, seek

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

RegExIterator

public RegExIterator()

Method Detail

deepCopy

public RegExIterator 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>

Specified by:

deepCopy in class WrappingIterator

Parameters:

env - IteratorEnvironment environment in which iterator is being run.

Returns:

SortedKeyValueIterator a copy of this iterator (with the same source and settings).

consume

protected void consume()
                throws java.io.IOException

Specified by:

consume in class SkippingIterator

Throws:

java.io.IOException

init

public void init(SortedKeyValueIterator<Key,Value> source,
                 java.util.Map<java.lang.String,java.lang.String> options,
                 IteratorEnvironment env)
          throws java.io.IOException

Description copied from interface: SortedKeyValueIterator

Initializes the iterator. Data should not be read from the source in this method.

Specified by:

init in interface SortedKeyValueIterator<Key,Value>

Overrides:

init in class WrappingIterator

Parameters:

source - SortedKeyValueIterator source to read data from.

options - Map map of string option names to option values.

env - IteratorEnvironment environment in which iterator is being run.

Throws:

java.io.IOException - unused.

describeOptions

public OptionDescriber.IteratorOptions describeOptions()

Specified by:

describeOptions in interface OptionDescriber

validateOptions

public boolean validateOptions(java.util.Map<java.lang.String,java.lang.String> options)

Specified by:

validateOptions in interface OptionDescriber