org.apache.accumulo.core.client.mock

Class MockScanner

java.lang.Object

org.apache.accumulo.core.client.impl.ScannerOptions

org.apache.accumulo.core.client.mock.MockScannerBase

org.apache.accumulo.core.client.mock.MockScanner

All Implemented Interfaces:

Iterable<Map.Entry<Key,Value>>, Scanner, ScannerBase

public class MockScanner
extends MockScannerBase
implements Scanner

Field Summary

Fields inherited from class org.apache.accumulo.core.client.mock.MockScannerBase

auths, table

Fields inherited from class org.apache.accumulo.core.client.impl.ScannerOptions

fetchedColumns, serverSideIteratorList, serverSideIteratorOptions

Method Summary

Methods

Modifier and Type	Method and Description
void	disableIsolation() Disables row isolation.
void	enableIsolation() Enables row isolation.
int	getBatchSize() Returns the batch size (number of Key/Value pairs) that will be fetched at a time from a tablet server.
Range	getRange() Returns the range of keys to scan over.
int	getTimeOut() Returns the setting for how long a scanner will automatically retry when a failure occurs.
Iterator<Map.Entry<Key,Value>>	iterator() Returns an iterator over an accumulo table.
void	setBatchSize(int size) Sets the number of Key/Value pairs that will be fetched at a time from a tablet server.
void	setRange(Range range) Sets the range of keys to scan over.
void	setTimeOut(int timeOut) This setting determines how long a scanner will automatically retry when a failure occurs.

Methods inherited from class org.apache.accumulo.core.client.mock.MockScannerBase

createFilter

Methods inherited from class org.apache.accumulo.core.client.impl.ScannerOptions

addScanIterator, clearColumns, clearScanIterators, fetchColumn, fetchColumn, fetchColumnFamily, getFetchedColumns, removeScanIterator, setColumnFamilyRegex, setColumnQualifierRegex, setOptions, setRowRegex, setScanIteratorOption, setScanIterators, setupRegex, setValueRegex, updateScanIteratorOption

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.accumulo.core.client.ScannerBase

addScanIterator, clearColumns, clearScanIterators, fetchColumn, fetchColumnFamily, removeScanIterator, setColumnFamilyRegex, setColumnQualifierRegex, setRowRegex, setScanIteratorOption, setScanIterators, setupRegex, setValueRegex, updateScanIteratorOption

Method Detail

setTimeOut

public void setTimeOut(int timeOut)

Description copied from interface: Scanner

This setting determines how long a scanner will automatically retry when a failure occurs. By default a scanner will retry forever.

Specified by:

setTimeOut in interface Scanner

Parameters:

timeOut - in seconds

getTimeOut

public int getTimeOut()

Description copied from interface: Scanner

Returns the setting for how long a scanner will automatically retry when a failure occurs.

Specified by:

getTimeOut in interface Scanner

Returns:

the timeout configured for this scanner

setRange

public void setRange(Range range)

Description copied from interface: Scanner

Sets the range of keys to scan over.

Specified by:

setRange in interface Scanner

Parameters:

range - key range to begin and end scan

getRange

public Range getRange()

Description copied from interface: Scanner

Returns the range of keys to scan over.

Specified by:

getRange in interface Scanner

Returns:

the range configured for this scanner

setBatchSize

public void setBatchSize(int size)

Description copied from interface: Scanner

Sets the number of Key/Value pairs that will be fetched at a time from a tablet server.

Specified by:

setBatchSize in interface Scanner

Parameters:

size - the number of Key/Value pairs to fetch per call to Accumulo

getBatchSize

public int getBatchSize()

Description copied from interface: Scanner

Returns the batch size (number of Key/Value pairs) that will be fetched at a time from a tablet server.

Specified by:

getBatchSize in interface Scanner

Returns:

the batch size configured for this scanner

enableIsolation

public void enableIsolation()

Description copied from interface: Scanner

Enables row isolation. Writes that occur to a row after a scan of that row has begun will not be seen if this option is enabled.

Specified by:

enableIsolation in interface Scanner

disableIsolation

public void disableIsolation()

Description copied from interface: Scanner

Disables row isolation. Writes that occur to a row after a scan of that row has begun may be seen if this option is enabled.

Specified by:

disableIsolation in interface Scanner

iterator

public Iterator<Map.Entry<Key,Value>> iterator()

Description copied from interface: ScannerBase

Returns an iterator over an accumulo table. This iterator uses the options that are currently set for its lifetime, so setting options will have no effect on existing iterators. Keys returned by the iterator are not guaranteed to be in sorted order.

Specified by:

iterator in interface Iterable<Map.Entry<Key,Value>>

Specified by:

iterator in interface ScannerBase

Overrides:

iterator in class MockScannerBase

Returns:

an iterator over Key,Value pairs which meet the restrictions set on the scanner