Package com.inductiveautomation.ignition.gateway.sqltags.history.query.columns

Class TimestampResultNode

java.lang.Object

com.inductiveautomation.ignition.gateway.sqltags.history.query.columns.AbstractResultNode

com.inductiveautomation.ignition.gateway.sqltags.history.query.columns.TimestampResultNode

All Implemented Interfaces:

ResultNode

public class TimestampResultNode
extends AbstractResultNode

Field Summary

Fields inherited from class com.inductiveautomation.ignition.gateway.sqltags.history.query.columns.AbstractResultNode

type

Constructor Summary

Constructors

Constructor	Description
TimestampResultNode()

Method Summary

Modifier and Type	Method	Description
QualityCode	getQuality()	Gets the quality that corresponds to the last call to getValue
Object	getValue(long timestamp, int level)
boolean	hasMore()	Indicates whether the node has more data for the last time used with getValue.
long	maxAvailableTime()	Returns the MAX time that this column has values for.
boolean	wasValueInterpolated()	The timestamp is always "interpolated".

Methods inherited from class com.inductiveautomation.ignition.gateway.sqltags.history.query.columns.AbstractResultNode

getDataType, getErrorCode, getName, getNext, getPrevious, isErrored, markCompleted, setDataType, setErrored, setNext, setNextAvailableTime, setPrevious, sortNode, swapNodes

Methods inherited from class java.lang.Object

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

Constructor Details

TimestampResultNode

public TimestampResultNode()

Method Details

maxAvailableTime

public long maxAvailableTime()

Description copied from interface: ResultNode

Returns the MAX time that this column has values for. NOTE: the max time can be well in the future (compared to the last value time). In fact, columns that don't interpolate data could return long.maxvalue. This time simply means "if you call getValue with a time less than this time, I can give you a value".

Specified by:

maxAvailableTime in interface ResultNode

Overrides:

maxAvailableTime in class AbstractResultNode

wasValueInterpolated

public boolean wasValueInterpolated()

The timestamp is always "interpolated". This is partially because it's made up on demand, but also to avoid interfering with the setting to not write purely interpolated rows.

getValue

public Object getValue(long timestamp,
 int level)

getQuality

public QualityCode getQuality()

Description copied from interface: ResultNode

Gets the quality that corresponds to the last call to getValue

hasMore

public boolean hasMore()

Description copied from interface: ResultNode

Indicates whether the node has more data for the last time used with getValue.