org.neo4j.helpers

Class ArrayUtil

java.lang.Object

org.neo4j.helpers.ArrayUtil

Deprecated.

This is mostly an external deprecation, and the class will be moved to an internal package eventually. However, if you can find an external utility library providing the functionality, then please use that instead.

@Deprecated
public abstract class ArrayUtil
extends Object

Methods "missing" from Arrays are provided here.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ArrayUtil.ArrayEquality Deprecated.

Field Summary

Fields

Modifier and Type	Field and Description
static ArrayUtil.ArrayEquality	BOXING_AWARE_ARRAY_EQUALITY Deprecated.
static ArrayUtil.ArrayEquality	DEFAULT_ARRAY_EQUALITY Deprecated.

Method Summary

Modifier and Type	Method and Description
static <T> T[]	array(T... varargs) Deprecated.
static Object	clone(Object array) Deprecated.
static <T> T[]	concat(T[] initial, T... additional) Deprecated.
static <T> T[]	concat(T first, T... additional) Deprecated.
static <T> T[]	concatArrays(T[] initial, T[]... additional) Deprecated. Create a single array from many arrays.
static <T> boolean	contains(T[] array, int arrayLength, T contains) Deprecated.
static <T> boolean	contains(T[] array, T contains) Deprecated.
static <T> boolean	containsAll(T[] array, T[] contains) Deprecated.
static boolean	equals(Object firstArray, Object otherArray) Deprecated.
static boolean	equals(Object firstArray, Object otherArray, ArrayUtil.ArrayEquality equality) Deprecated.
static int	hashCode(Object array) Deprecated.
static <T> int	indexOf(T[] array, T item) Deprecated.
static boolean	isEmpty(Object[] array) Deprecated.
static <T> String	join(T[] items, String delimiter) Deprecated.
static <T> T	lastOf(T[] array) Deprecated.
static <FROM,TO> TO[]	map(FROM[] from, Function<FROM,TO> transformer, Class<TO> toClass) Deprecated.
static <T> int	missing(T[] array, T[] contains) Deprecated.
static <T> boolean	nullSafeEquals(T first, T other) Deprecated.
static <T> void	reverse(T[] array) Deprecated.
static <T> T[]	union(T[] first, T[] other) Deprecated.
static <T> T[]	without(T[] source, T... toRemove) Deprecated.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_ARRAY_EQUALITY

@Deprecated
public static final ArrayUtil.ArrayEquality DEFAULT_ARRAY_EQUALITY

Deprecated.

BOXING_AWARE_ARRAY_EQUALITY

@Deprecated
public static final ArrayUtil.ArrayEquality BOXING_AWARE_ARRAY_EQUALITY

Deprecated.

Method Detail

hashCode

@Deprecated
public static int hashCode(Object array)

Deprecated.

equals

@Deprecated
public static boolean equals(Object firstArray,
                                         Object otherArray)

Deprecated.

equals

@Deprecated
public static boolean equals(Object firstArray,
                                         Object otherArray,
                                         ArrayUtil.ArrayEquality equality)

Deprecated.

Check if two arrays are equal. I also can't believe this method is missing from Arrays. Both arguments must be arrays of some type.

Parameters:

firstArray - value to compare to the other value

otherArray - value to compare to the first value

equality - equality logic

Returns:

Returns true if the arrays are equal

See Also:

for similar functionality.

clone

@Deprecated
public static Object clone(Object array)

Deprecated.

missing

@Deprecated
public static <T> int missing(T[] array,
                                          T[] contains)

Deprecated.

Count missing items in an array. The order of items doesn't matter.

Type Parameters:

T - The type of the array items

Parameters:

array - Array to examine

contains - Items to look for

Returns:

how many of the items in contains are missing from array.

containsAll

@Deprecated
public static <T> boolean containsAll(T[] array,
                                                  T[] contains)

Deprecated.

Count items from a different array contained in an array. The order of items doesn't matter.

Type Parameters:

T - The type of the array items

Parameters:

array - Array to examine

contains - Items to look for

Returns:

true if all items in contains exists in array, otherwise false.

contains

@Deprecated
public static <T> boolean contains(T[] array,
                                               T contains)

Deprecated.

Check if array contains item.

Type Parameters:

T - The type of the array items

Parameters:

array - Array to examine

contains - Single item to look for

Returns:

true if contains exists in array, otherwise false.

contains

@Deprecated
public static <T> boolean contains(T[] array,
                                               int arrayLength,
                                               T contains)

Deprecated.

Check if array contains item.

Type Parameters:

T - The type of the array items

Parameters:

array - Array to examine

arrayLength - Number of items to check, from the start of the array

contains - Single item to look for

Returns:

true if contains exists in array, otherwise false.

nullSafeEquals

@Deprecated
public static <T> boolean nullSafeEquals(T first,
                                                     T other)

Deprecated.

Compare two items for equality; if both are null they are regarded as equal.

Type Parameters:

T - The type of the items

Parameters:

first - First item to compare

other - Other item to compare

Returns:

true if first and other are both null or are both equal.

union

@Deprecated
public static <T> T[] union(T[] first,
                                        T[] other)

Deprecated.

Get the union of two arrays. The resulting array will not contain any duplicates.

Type Parameters:

T - The type of the arrays

Parameters:

first - First array

other - Other array

Returns:

an array containing the union of first and other. Items occurring in both first and other will only have of the two in the resulting union.

isEmpty

@Deprecated
public static boolean isEmpty(Object[] array)

Deprecated.

Check if provided array is empty

Parameters:

array - - array to check

Returns:

true if array is null or empty

join

@Deprecated
public static <T> String join(T[] items,
                                          String delimiter)

Deprecated.

Convert an array to a String using a custom delimiter.

Type Parameters:

T - The type of the array

Parameters:

items - The array to convert

delimiter - The delimiter to use

Returns:

a String representation of items with a custom delimiter in between.

map

@Deprecated
public static <FROM,TO> TO[] map(FROM[] from,
                                             Function<FROM,TO> transformer,
                                             Class<TO> toClass)

Deprecated.

Create new array with all items converted into a new type using a supplied transformer.

Type Parameters:

FROM - type of original items

TO - type of the converted items

Parameters:

from - original array

transformer - transformer that converts an item from the original to the target type

toClass - target type for items

Returns:

a new array with all items from from converted into type toClass.

concat

@Deprecated
public static <T> T[] concat(T first,
                                         T... additional)

Deprecated.

Create an array from a single first item and additional items following it.

Type Parameters:

T - the type of the items

Parameters:

first - the item to put first

additional - the additional items to add to the array

Returns:

a concatenated array where first as the item at index 0 and the additional items following it.

concat

@Deprecated
public static <T> T[] concat(T[] initial,
                                         T... additional)

Deprecated.

Create a array from a existing array and additional items following it.

Type Parameters:

T - the type of the array items

Parameters:

initial - the initial array

additional - the additional items that would be added into the initial array

Returns:

a concatenated array and the additional items following it.

concatArrays

public static <T> T[] concatArrays(T[] initial,
                                   T[]... additional)

Deprecated.

Create a single array from many arrays.

Type Parameters:

T - the type of the array items

Parameters:

initial - an initial array

additional - additional arrays to be concatenated with the initial array

Returns:

the concatenated array

array

@Deprecated
 @SafeVarargs
public static <T> T[] array(T... varargs)

Deprecated.

Returns the array version of the vararg argument.

Type Parameters:

T - the type of the items

Parameters:

varargs - the items

Returns:

the array version of the vararg argument.

lastOf

@Deprecated
public static <T> T lastOf(T[] array)

Deprecated.

indexOf

@Deprecated
public static <T> int indexOf(T[] array,
                                          T item)

Deprecated.

without

@Deprecated
public static <T> T[] without(T[] source,
                                          T... toRemove)

Deprecated.

reverse

@Deprecated
public static <T> void reverse(T[] array)

Deprecated.