FlattenOperation

java.lang.Object

com.illumon.iris.db.v2.FlattenOperation

All Implemented Interfaces:: QueryTable.MemoizableOperation, QueryTable.Operation

public class FlattenOperation
extends Object
implements QueryTable.MemoizableOperation

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()`
`String`	`getLogPrefix()`
`MemoizedOperationKey`	`getMemoizedOperationKey()`
`QueryTable.Operation.Result`	`initialize(boolean usePrev, long beforeClock)`	Initialize this operation.

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
- 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
- getMemoizedOperationKey
  
  public MemoizedOperationKey getMemoizedOperationKey()
  
  Specified by:
  
  getMemoizedOperationKey in interface QueryTable.MemoizableOperation
  
  Returns:
  
  the key that should be used to memoize off of
- 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.