Package io.trino.operator.window.pattern

Class LogicalIndexNavigation

java.lang.Object

io.trino.operator.window.pattern.LogicalIndexNavigation

public class LogicalIndexNavigation
extends Object

Constructor Summary

Constructors

Constructor	Description
LogicalIndexNavigation(Set<Integer> labels, boolean last, boolean running, int logicalOffset, int physicalOffset)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
Set<Integer>	getLabels()
int	getLogicalOffset()
int	getPhysicalOffset()
int	hashCode()
boolean	isLast()
int	resolvePosition(int currentRow, ArrayView matchedLabels, int searchStart, int searchEnd, int patternStart)	This method is used when evaluating labels during pattern matching, computing row pattern measures, and computing SKIP TO position after finding a match.
LogicalIndexNavigation	withLogicalOffset(int logicalOffset)
LogicalIndexNavigation	withoutLogicalOffset()
LogicalIndexNavigation	withoutPhysicalOffset()
LogicalIndexNavigation	withPhysicalOffset(int physicalOffset)

Methods inherited from class java.lang.Object

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

Constructor Detail

LogicalIndexNavigation

public LogicalIndexNavigation(Set<Integer> labels,
                              boolean last,
                              boolean running,
                              int logicalOffset,
                              int physicalOffset)

Method Detail

getLabels

public Set<Integer> getLabels()

isLast

public boolean isLast()

getLogicalOffset

public int getLogicalOffset()

getPhysicalOffset

public int getPhysicalOffset()

resolvePosition

public int resolvePosition(int currentRow,
                           ArrayView matchedLabels,
                           int searchStart,
                           int searchEnd,
                           int patternStart)

This method is used when evaluating labels during pattern matching, computing row pattern measures, and computing SKIP TO position after finding a match. Search is limited up to the current row in case of running semantics and to the entire match in case of final semantics.

Returns:

position within partition, or -1 if matching position was not found

withoutLogicalOffset

public LogicalIndexNavigation withoutLogicalOffset()

withLogicalOffset

public LogicalIndexNavigation withLogicalOffset(int logicalOffset)

withoutPhysicalOffset

public LogicalIndexNavigation withoutPhysicalOffset()

withPhysicalOffset

public LogicalIndexNavigation withPhysicalOffset(int physicalOffset)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object