org.calrissian.accumulorecipes.commons.iterators

Class FieldIndexIterator

java.lang.Object

org.apache.accumulo.core.iterators.WrappingIterator

org.calrissian.accumulorecipes.commons.iterators.FieldIndexIterator

All Implemented Interfaces:

org.apache.accumulo.core.iterators.SortedKeyValueIterator<org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value>

public class FieldIndexIterator
extends org.apache.accumulo.core.iterators.WrappingIterator

This iterator should only return keys from the fi\0{fieldName}:{fieldValue} part of the shard table. Expect topKey to be CF, {UID}

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.apache.log4j.Logger	log

Constructor Summary

Constructors

Constructor and Description
FieldIndexIterator()
FieldIndexIterator(FieldIndexIterator other, org.apache.accumulo.core.iterators.IteratorEnvironment env)
FieldIndexIterator(int type, org.apache.hadoop.io.Text rowId, org.apache.hadoop.io.Text fieldName, org.apache.hadoop.io.Text fieldValue, boolean neg, String operator)
FieldIndexIterator(int type, org.apache.hadoop.io.Text rowId, org.apache.hadoop.io.Text fieldName, org.apache.hadoop.io.Text fieldValue, String operator)

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.accumulo.core.iterators.SortedKeyValueIterator<org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value>	deepCopy(org.apache.accumulo.core.iterators.IteratorEnvironment env)
org.apache.hadoop.io.Text	getCurrentRow()
org.apache.hadoop.io.Text	getfName()
org.apache.hadoop.io.Text	getfValue()
org.apache.accumulo.core.data.Key	getTopKey()
org.apache.accumulo.core.data.Value	getTopValue()
boolean	hasTop()
boolean	isNegated()
boolean	jump(org.apache.accumulo.core.data.Key jumpKey)
void	next()
void	seek(org.apache.accumulo.core.data.Range r, Collection<org.apache.accumulo.core.data.ByteSequence> columnFamilies, boolean inclusive)
static void	setLogLevel(org.apache.log4j.Level l)

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

getSource, init, setSource

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

log

protected static final org.apache.log4j.Logger log

Constructor Detail

FieldIndexIterator

public FieldIndexIterator()

FieldIndexIterator

public FieldIndexIterator(int type,
                  org.apache.hadoop.io.Text rowId,
                  org.apache.hadoop.io.Text fieldName,
                  org.apache.hadoop.io.Text fieldValue,
                  String operator)

FieldIndexIterator

public FieldIndexIterator(int type,
                  org.apache.hadoop.io.Text rowId,
                  org.apache.hadoop.io.Text fieldName,
                  org.apache.hadoop.io.Text fieldValue,
                  boolean neg,
                  String operator)

FieldIndexIterator

public FieldIndexIterator(FieldIndexIterator other,
                  org.apache.accumulo.core.iterators.IteratorEnvironment env)

Method Detail

setLogLevel

public static void setLogLevel(org.apache.log4j.Level l)

deepCopy

public org.apache.accumulo.core.iterators.SortedKeyValueIterator<org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value> deepCopy(org.apache.accumulo.core.iterators.IteratorEnvironment env)

Specified by:

deepCopy in interface org.apache.accumulo.core.iterators.SortedKeyValueIterator<org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value>

Overrides:

deepCopy in class org.apache.accumulo.core.iterators.WrappingIterator

getTopKey

public org.apache.accumulo.core.data.Key getTopKey()

Specified by:

getTopKey in interface org.apache.accumulo.core.iterators.SortedKeyValueIterator<org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value>

Overrides:

getTopKey in class org.apache.accumulo.core.iterators.WrappingIterator

getTopValue

public org.apache.accumulo.core.data.Value getTopValue()

Specified by:

getTopValue in interface org.apache.accumulo.core.iterators.SortedKeyValueIterator<org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value>

Overrides:

getTopValue in class org.apache.accumulo.core.iterators.WrappingIterator

hasTop

public boolean hasTop()

Specified by:

hasTop in interface org.apache.accumulo.core.iterators.SortedKeyValueIterator<org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value>

Overrides:

hasTop in class org.apache.accumulo.core.iterators.WrappingIterator

next

public void next()
          throws IOException

Specified by:

next in interface org.apache.accumulo.core.iterators.SortedKeyValueIterator<org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value>

Overrides:

next in class org.apache.accumulo.core.iterators.WrappingIterator

Throws:

IOException

seek

public void seek(org.apache.accumulo.core.data.Range r,
        Collection<org.apache.accumulo.core.data.ByteSequence> columnFamilies,
        boolean inclusive)
          throws IOException

Specified by:

seek in interface org.apache.accumulo.core.iterators.SortedKeyValueIterator<org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value>

Overrides:

seek in class org.apache.accumulo.core.iterators.WrappingIterator

Throws:

IOException

isNegated

public boolean isNegated()

getCurrentRow

public org.apache.hadoop.io.Text getCurrentRow()

getfName

public org.apache.hadoop.io.Text getfName()

getfValue

public org.apache.hadoop.io.Text getfValue()

jump

public boolean jump(org.apache.accumulo.core.data.Key jumpKey)
             throws IOException

Throws:

IOException