com.ibm.security.certclient.util

Class PkArray

java.lang.Object

com.ibm.security.certclient.util.PkArray

public class PkArray
extends Object

This is a utility class. It contains only static methods. All methods perform operations on arrays.

Author:

Rod Mancisidor

Constructor Summary

Constructors

Constructor and Description
PkArray()

Method Summary

Modifier and Type	Method and Description
static Object[]	append(Object[] a1, Object[] a2) Return the result of appending two arrays
static boolean	areEqual(byte[] lhs, byte[] rhs) Return true if and only if the array lhs and the array rhs have the same length and:
static boolean	areEqual(Object[] lhs, Object[] rhs) Return true if and only if the array lhs and the array rhs have the same length and:
static boolean	isMember(Object member, Object[] array) Return true if and only if member equals any of the elements of array
static boolean	isMember(Object member, Object[] array, Comparator<Object> comp) Return true if and only if member equals any of the elements of array using comp as the comparator object
static boolean	isPrefix(byte[] lhs, byte[] rhs) Return true if and only if lhs.length <= rhs.length and:
static Object[]	slice(Object[] array, int from, int to) Return the slice of an array.

Methods inherited from class java.lang.Object

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

Constructor Detail

PkArray

public PkArray()

Method Detail

slice

public static Object[] slice(Object[] array,
                             int from,
                             int to)

Return the slice of an array. A slice is an array that contains a shallow copy of the elements of another array and may be truncated at the beginning or end.

Parameters:

array - the array to slice

from - the index of the first element of array that is placed in the slice. If negative, then start to count from the end

to - the index of the first element of array that is not placed in the slice. If negative, then start to count from the end

Returns:

the slice

Throws:

IllegalArgumentException - if to or from fall outside the array

append

public static Object[] append(Object[] a1,
                              Object[] a2)

Return the result of appending two arrays

isMember

public static boolean isMember(Object member,
                               Object[] array)

Return true if and only if member equals any of the elements of array

isMember

public static boolean isMember(Object member,
                               Object[] array,
                               Comparator<Object> comp)

Return true if and only if member equals any of the elements of array using comp as the comparator object

areEqual

public static boolean areEqual(Object[] lhs,
                               Object[] rhs)

Return true if and only if the array lhs and the array rhs have the same length and:

for all i in 0..lhs.length, lhs[i].equals(rhs[i])

areEqual

public static boolean areEqual(byte[] lhs,
                               byte[] rhs)

Return true if and only if the array lhs and the array rhs have the same length and:

for all i in 0..lhs.length, lhs[i] == rhs[i]

isPrefix

public static boolean isPrefix(byte[] lhs,
                               byte[] rhs)

Return true if and only if lhs.length <= rhs.length and:

 for all i in 0..lhs.length, lhs[i] == rhs[i]