Package org.rumbledb.runtime.flwor.tuple

Class FlworKey

java.lang.Object

org.rumbledb.runtime.flwor.tuple.FlworKey

public class FlworKey
extends Object

Constructor Summary

Constructors

Constructor	Description
FlworKey(List<Item> contents)

Method Summary

Modifier and Type	Method	Description
int	compareWithFlworKey(FlworKey flworKey, List<OrderByClauseAnnotatedChildIterator> expressions, ExceptionMetadata metadata)	Invariant - two Flworkeys have the same length
boolean	equalFlworKey(FlworKey flworKey)	Invariant - two Flworkeys have the same length
boolean	equals(Object otherKey)
int	hashCode()

Methods inherited from class java.lang.Object

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

Constructor Details

FlworKey

public FlworKey(List<Item> contents)

Method Details

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object otherKey)

Overrides:

equals in class Object

equalFlworKey

public boolean equalFlworKey(FlworKey flworKey)

Invariant - two Flworkeys have the same length

Parameters:

flworKey - "other" FlworKey to be compared against

Returns:

true if both items are equal, false otherwise (also when types are different)

compareWithFlworKey

public int compareWithFlworKey(FlworKey flworKey,
 List<OrderByClauseAnnotatedChildIterator> expressions,
 ExceptionMetadata metadata)

Invariant - two Flworkeys have the same length

Parameters:

flworKey - "other" FlworKey to be compared against

metadata -

Returns:

comparison value (-1=smaller, 0=equal, 1=larger) * index (of the expression that determines ordering)