org.magicwerk.brownies.collections.helper

Enum SortedLists.KeyAbsentBehavior

java.lang.Object

java.lang.Enum<SortedLists.KeyAbsentBehavior>

org.magicwerk.brownies.collections.helper.SortedLists.KeyAbsentBehavior

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<SortedLists.KeyAbsentBehavior>

Enclosing class:

SortedLists

public static enum SortedLists.KeyAbsentBehavior
extends java.lang.Enum<SortedLists.KeyAbsentBehavior>

A specification for which index to return if the list contains no elements that compare as equal to the key.

Enum Constant Summary

Enum Constants

Enum Constant and Description
INVERTED_INSERTION_INDEX Return ~insertionIndex, where insertionIndex is defined as the point at which the key would be inserted into the list: the index of the next higher element in the list, or list.size() if there is no such element.
NEXT_HIGHER Return the index of the next higher element in the list, or list.size() if there is no such element.
NEXT_LOWER Return the index of the next lower element in the list, or -1 if there is no such element.

Method Summary

Methods

Modifier and Type	Method and Description
abstract int	resultIndex(int higherIndex)
static SortedLists.KeyAbsentBehavior	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static SortedLists.KeyAbsentBehavior[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NEXT_LOWER

public static final SortedLists.KeyAbsentBehavior NEXT_LOWER

Return the index of the next lower element in the list, or -1 if there is no such element.

NEXT_HIGHER

public static final SortedLists.KeyAbsentBehavior NEXT_HIGHER

Return the index of the next higher element in the list, or list.size() if there is no such element.

INVERTED_INSERTION_INDEX

public static final SortedLists.KeyAbsentBehavior INVERTED_INSERTION_INDEX

Return ~insertionIndex, where insertionIndex is defined as the point at which the key would be inserted into the list: the index of the next higher element in the list, or list.size() if there is no such element.

Note that the return value will be >= 0 if and only if there is an element of the list that compares as equal to the key.

This is equivalent to the behavior of Collections.binarySearch(List, Object) when the key isn't present, since ~insertionIndex is equal to -1 - insertionIndex.

Method Detail

values

public static SortedLists.KeyAbsentBehavior[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (SortedLists.KeyAbsentBehavior c : SortedLists.KeyAbsentBehavior.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static SortedLists.KeyAbsentBehavior valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

resultIndex

public abstract int resultIndex(int higherIndex)