com.helger.commons.changelog

Class ComparatorChangeLogEntryDate

java.lang.Object

com.helger.commons.compare.AbstractComparator<ChangeLogEntry>

com.helger.commons.changelog.ComparatorChangeLogEntryDate

All Implemented Interfaces:

Serializable, Comparator<ChangeLogEntry>

public final class ComparatorChangeLogEntryDate
extends AbstractComparator<ChangeLogEntry>

Special comparator to sort change log entries by their date and in case of equality by the parent change logs component name.

Author:

Philip Helger

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ComparatorChangeLogEntryDate() Comparator with default sort order and no nested comparator.
ComparatorChangeLogEntryDate(Comparator<? super ChangeLogEntry> aNestedComparator) Comparator with default sort order and a nested comparator.
ComparatorChangeLogEntryDate(ESortOrder eSortOrder) Constructor with sort order.
ComparatorChangeLogEntryDate(ESortOrder eSortOrder, Comparator<? super ChangeLogEntry> aNestedComparator) Comparator with sort order and a nested comparator.

Method Summary

Modifier and Type	Method and Description
protected int	mainCompare(ChangeLogEntry aEntry1, ChangeLogEntry aEntry2)

Methods inherited from class com.helger.commons.compare.AbstractComparator

compare, getSortOrder, setSortOrder

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

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

Constructor Detail

ComparatorChangeLogEntryDate

public ComparatorChangeLogEntryDate()

Comparator with default sort order and no nested comparator.

ComparatorChangeLogEntryDate

public ComparatorChangeLogEntryDate(@Nonnull
                                    ESortOrder eSortOrder)

Constructor with sort order.

Parameters:

eSortOrder - The sort order to use. May not be null.

ComparatorChangeLogEntryDate

public ComparatorChangeLogEntryDate(@Nullable
                                    Comparator<? super ChangeLogEntry> aNestedComparator)

Comparator with default sort order and a nested comparator.

Parameters:

aNestedComparator - The nested comparator to be invoked, when the main comparison resulted in 0.

ComparatorChangeLogEntryDate

public ComparatorChangeLogEntryDate(@Nonnull
                                    ESortOrder eSortOrder,
                                    @Nullable
                                    Comparator<? super ChangeLogEntry> aNestedComparator)

Comparator with sort order and a nested comparator.

Parameters:

eSortOrder - The sort order to use. May not be null.

aNestedComparator - The nested comparator to be invoked, when the main comparison resulted in 0.

Method Detail

mainCompare

protected int mainCompare(@Nonnull
                          ChangeLogEntry aEntry1,
                          @Nonnull
                          ChangeLogEntry aEntry2)

Specified by:

mainCompare in class AbstractComparator<ChangeLogEntry>

Parameters:

aEntry1 - First element to compare. No information on the null status.

aEntry2 - Second element to compare. No information on the null status.

Returns:

a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.