org.eclipse.paho.client.mqttv3.util

Class Strings

java.lang.Object

org.eclipse.paho.client.mqttv3.util.Strings

public final class Strings
extends java.lang.Object

String helper

Method Summary

Modifier and Type	Method and Description
static boolean	Character_isHighSurrogate(char ch)
static boolean	containsAny(java.lang.CharSequence cs, char[] searchChars) Checks if the CharSequence contains any character in the given set of characters.
static boolean	containsAny(java.lang.CharSequence cs, java.lang.CharSequence searchChars) Checks if the CharSequence contains any character in the given set of characters.
static int	countMatches(java.lang.CharSequence str, java.lang.CharSequence sub) Counts how many times the substring appears in the larger string.
static boolean	equalsAny(java.lang.CharSequence cs, java.lang.CharSequence[] strs) Checks if the CharSequence equals any character in the given set of characters.
static boolean	isEmpty(java.lang.CharSequence cs) Checks if a CharSequence is empty ("") or null.

Methods inherited from class java.lang.Object

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

Method Detail

equalsAny

public static boolean equalsAny(java.lang.CharSequence cs,
                                java.lang.CharSequence[] strs)

Checks if the CharSequence equals any character in the given set of characters.

Parameters:

cs - the CharSequence to check

strs - the set of characters

Returns:

true if equals any

containsAny

public static boolean containsAny(java.lang.CharSequence cs,
                                  java.lang.CharSequence searchChars)

Checks if the CharSequence contains any character in the given set of characters.

Parameters:

cs - the CharSequence to check, may be null

searchChars - the chars to search for, may be null

Returns:

the true if any of the chars are found, false if no match or null input

containsAny

public static boolean containsAny(java.lang.CharSequence cs,
                                  char[] searchChars)

Checks if the CharSequence contains any character in the given set of characters.

Parameters:

cs - the CharSequence to check, may be null

searchChars - the chars to search for, may be null

Returns:

the true if any of the chars are found, false if no match or null input

Character_isHighSurrogate

public static boolean Character_isHighSurrogate(char ch)

Parameters:

ch -

Returns:

returns 'true' if the character is a high-surrogate code unit

isEmpty

public static boolean isEmpty(java.lang.CharSequence cs)

Checks if a CharSequence is empty ("") or null.

Parameters:

cs - the CharSequence to check, may be null

Returns:

true if the CharSequence is empty or null

countMatches

public static int countMatches(java.lang.CharSequence str,
                               java.lang.CharSequence sub)

Counts how many times the substring appears in the larger string.

Parameters:

str - the CharSequence to check, may be null

sub - the substring to count, may be null

Returns:

the number of occurrences, 0 if either CharSequence is null