com.reportmill.base

Class RMArrayUtils

java.lang.Object

com.reportmill.base.RMArrayUtils

public class RMArrayUtils
extends java.lang.Object

A collection of array utility methods.

Constructor Summary

Constructors

Constructor and Description
RMArrayUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static <T> T[]	add(T[] anArray, T anObj) Adds a value to an array of objects.
static <T> T[]	add(T[] anArray, T anObj, int anIndex) Returns a new array by adding a value to an array of objects at the given index.
static <T> T[]	addId(T[] anArray, T anObj) Adds a value to an array of objects if list doesn't already contain it.
static boolean	contains(java.lang.Object[] anArray, java.lang.Object anObj) Returns whether the given array contains the given object.
static <T> boolean	containsId(T[] anArray, T aValue) Returns whether the given array contains the identical given object.
static int[]	copyOfRange(int[] anArray, int from, int to) Returns a copy of given range of given array (this method is in Java 6 Arrays class).
static boolean	equals(byte[] array1, byte[] array2) Returns whether two byte arrays are equal.
static boolean	equals(byte[] array1, byte[] array2, int length) Returns whether two byte arrays are equal to the given length.
static boolean	equals(float[] array1, float[] array2) Returns whether two float arrays are equal.
static boolean	equals(float[] array1, float[] array2, int length) Returns whether two float arrays are equal to the given length.
static <T> T[]	get(java.lang.Object[] anArray, java.lang.Class<T> aClass) Returns the individual object of a given class at given index (from all objects of given class).
static <T> T	get(java.lang.Object[] anArray, java.lang.Class<T> aClass, int anIndex) Returns the individual object of a given class at given index (from all objects of given class).
static int	getCount(java.lang.Object[] anArray, java.lang.Class aClass) Returns the number of object in array of a given class.
static int	indexOf(java.lang.Object[] anArray, java.lang.Object anObj) Returns the index of the given object in the given array.
static <T> int	indexOfId(T[] anArray, T aValue) Returns the index of the given object in the given array using "==" instead of equals.
static int	length(java.lang.Object[] anArray) Returns the length of a given object array (or zero, if null).
static <T> T[]	realloc(T[] anArray, int aSize) Creates a new object array with original values and new size.
static <T> T[]	remove(T[] anArray, int anIndex) Returns a new array by removing a value from an array of objects at the given index.
static <T> T[]	removeId(T[] anArray, T anObj) Removes a value from an array of objects if list doesn't already contain it.
static <T> T[]	replace(T[] anArray, int start, int end, T... swapInArray) Replaces a range of values in an int array with values from another int array.

Methods inherited from class java.lang.Object

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

Constructor Detail

RMArrayUtils

public RMArrayUtils()

Method Detail

length

public static int length(java.lang.Object[] anArray)

Returns the length of a given object array (or zero, if null).

add

public static <T> T[] add(T[] anArray,
          T anObj)

Adds a value to an array of objects.

add

public static <T> T[] add(T[] anArray,
          T anObj,
          int anIndex)

Returns a new array by adding a value to an array of objects at the given index.

remove

public static <T> T[] remove(T[] anArray,
             int anIndex)

Returns a new array by removing a value from an array of objects at the given index.

replace

public static <T> T[] replace(T[] anArray,
              int start,
              int end,
              T... swapInArray)

Replaces a range of values in an int array with values from another int array.

addId

public static <T> T[] addId(T[] anArray,
            T anObj)

Adds a value to an array of objects if list doesn't already contain it.

removeId

public static <T> T[] removeId(T[] anArray,
               T anObj)

Removes a value from an array of objects if list doesn't already contain it.

getCount

public static int getCount(java.lang.Object[] anArray,
           java.lang.Class aClass)

Returns the number of object in array of a given class.

get

public static <T> T get(java.lang.Object[] anArray,
        java.lang.Class<T> aClass,
        int anIndex)

Returns the individual object of a given class at given index (from all objects of given class).

get

public static <T> T[] get(java.lang.Object[] anArray,
          java.lang.Class<T> aClass)

Returns the individual object of a given class at given index (from all objects of given class).

realloc

public static <T> T[] realloc(T[] anArray,
              int aSize)

Creates a new object array with original values and new size.

equals

public static boolean equals(byte[] array1,
             byte[] array2)

Returns whether two byte arrays are equal.

equals

public static boolean equals(byte[] array1,
             byte[] array2,
             int length)

Returns whether two byte arrays are equal to the given length.

equals

public static boolean equals(float[] array1,
             float[] array2)

Returns whether two float arrays are equal.

equals

public static boolean equals(float[] array1,
             float[] array2,
             int length)

Returns whether two float arrays are equal to the given length.

indexOf

public static int indexOf(java.lang.Object[] anArray,
          java.lang.Object anObj)

Returns the index of the given object in the given array.

contains

public static boolean contains(java.lang.Object[] anArray,
               java.lang.Object anObj)

Returns whether the given array contains the given object.

indexOfId

public static <T> int indexOfId(T[] anArray,
                T aValue)

Returns the index of the given object in the given array using "==" instead of equals.

containsId

public static <T> boolean containsId(T[] anArray,
                     T aValue)

Returns whether the given array contains the identical given object.

copyOfRange

public static int[] copyOfRange(int[] anArray,
                int from,
                int to)

Returns a copy of given range of given array (this method is in Java 6 Arrays class).