Package com.illumon.iris.db.v2

Class SliceLikeOperation

java.lang.Object

com.illumon.iris.db.v2.SliceLikeOperation

All Implemented Interfaces:

QueryTable.Operation

public class SliceLikeOperation
extends Object
implements QueryTable.Operation

Nested Class Summary

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.QueryTable.Operation

QueryTable.Operation.Result

Method Summary

Modifier and Type	Method	Description
String	getDescription()
protected long	getFirstPositionInclusive()
protected long	getLastPositionExclusive()
String	getLogPrefix()
static SliceLikeOperation	headPct(QueryTable parent, double percent)
QueryTable.Operation.Result	initialize(boolean usePrev, long beforeClock)	Initialize this operation.
static SliceLikeOperation	slice(QueryTable parent, long firstPositionInclusive, long lastPositionExclusive, String op)
static SliceLikeOperation	tailPct(QueryTable parent, double percent)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.illumon.iris.db.v2.QueryTable.Operation

newSwapListener

Method Details

slice

public static SliceLikeOperation slice(QueryTable parent,
 long firstPositionInclusive,
 long lastPositionExclusive,
 String op)

headPct

public static SliceLikeOperation headPct(QueryTable parent,
 double percent)

tailPct

public static SliceLikeOperation tailPct(QueryTable parent,
 double percent)

getDescription

public String getDescription()

Specified by:

getDescription in interface QueryTable.Operation

Returns:

the description of this operation

getLogPrefix

public String getLogPrefix()

Specified by:

getLogPrefix in interface QueryTable.Operation

Returns:

the log prefix of this operation

getFirstPositionInclusive

protected long getFirstPositionInclusive()

getLastPositionExclusive

protected long getLastPositionExclusive()

initialize

public QueryTable.Operation.Result initialize(boolean usePrev,
 long beforeClock)

Description copied from interface: QueryTable.Operation

Initialize this operation.

Specified by:

initialize in interface QueryTable.Operation

Parameters:

usePrev - data from the previous cycle should be used (otherwise use this cycle)

beforeClock - the clock value that we captured before the function began; the function can use this value to bail out early if it notices something has gone wrong.

Returns:

the result table / listener if successful, null if it should be retried.