WindowCheck

java.lang.Object

com.illumon.iris.db.tables.utils.WindowCheck

public class WindowCheck
extends Object

Adds a Boolean column that is true if a Timestamp is within the specified window.

Method Summary

Modifier and Type	Method	Description
`static Table`	`addTimeWindow(Table table, String timestampColumn, long windowNanos, String inWindowColumn)`	Adds a Boolean column that is false when a timestamp column is older than windowNanos.

Methods inherited from class java.lang.Object

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

Method Details
- addTimeWindow
  
  public static Table addTimeWindow(Table table, String timestampColumn, long windowNanos, String inWindowColumn)
  
  Adds a Boolean column that is false when a timestamp column is older than windowNanos.
  
  If the timestamp is greater than or equal to the curent time - windowNanos, then the result column is true. If the timestamp is null; the InWindow value is null.
  
  The resultant table ticks whenever the input table ticks, or modifies a row when it passes out of the window.
  
  Parameters:
  
  table - the input table
  
  timestampColumn - the timestamp column to monitor in table
  
  windowNanos - how many nanoseconds in the past a timestamp can be before it is out of the window
  
  inWindowColumn - the name of the new Boolean column.
  
  Returns:
  
  a new table that contains an in-window Boolean column