Package tech.tablesaw.sorting.comparators

Class IntComparatorChain

java.lang.Object

tech.tablesaw.sorting.comparators.IntComparatorChain

All Implemented Interfaces:

it.unimi.dsi.fastutil.ints.IntComparator, Serializable, Comparator<Integer>

public class IntComparatorChain
extends Object
implements it.unimi.dsi.fastutil.ints.IntComparator, Serializable

An IntComparator that wraps one or more Comparators in sequence. The ComparatorChain calls each Comparator in sequence until either 1) any single Comparator returns a non-zero result (and that result is then returned), or 2) the ComparatorChain is exhausted (and zero is returned)

The implementation is based on Apache Commons Collections

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
IntComparatorChain(it.unimi.dsi.fastutil.ints.IntComparator comparator)	Constructs a comparator chain with the argument as the first node in the chain

Method Summary

Modifier and Type	Method	Description
void	addComparator(it.unimi.dsi.fastutil.ints.IntComparator comparator)	Appends the comparator to the end of the chain
int	compare(int o1, int o2)
boolean	equals(Object object)
int	hashCode()
int	size()	Returns the number of comparators in the chain

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, naturalOrder, nullsFirst, nullsLast, reverseOrder, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Methods inherited from interface it.unimi.dsi.fastutil.ints.IntComparator

compare, reversed, thenComparing, thenComparing

Methods inherited from class java.lang.Object

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

Constructor Detail

IntComparatorChain

public IntComparatorChain(it.unimi.dsi.fastutil.ints.IntComparator comparator)

Constructs a comparator chain with the argument as the first node in the chain

Method Detail

addComparator

public void addComparator(it.unimi.dsi.fastutil.ints.IntComparator comparator)

Appends the comparator to the end of the chain

size

public int size()

Returns the number of comparators in the chain

compare

public int compare(int o1,
                   int o2)
            throws UnsupportedOperationException

Specified by:

compare in interface it.unimi.dsi.fastutil.ints.IntComparator

Throws:

UnsupportedOperationException

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object object)

Specified by:

equals in interface Comparator<Integer>

Overrides:

equals in class Object