org.xwiki.gwt.user.client

Class StringUtils

java.lang.Object

org.xwiki.gwt.user.client.StringUtils

public class StringUtils
extends Object

Operations on Strings.

Version:

$Id: f23cf8d4253c3f5b1ad227fd630e03e7200ee3b0 $

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	StringUtils() Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	areEqual(String expected, String actual)
static boolean	isEmpty(String str) Check is a String is empty ("") or null.
static String	join(Collection<?> collection, String inputSeparator) Joins the elements of the provided collection into a single string containing the provided elements.
static String	substringAfterLast(String str, String pattern)

Methods inherited from class java.lang.Object

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

Constructor Detail

StringUtils

protected StringUtils()

Constructor.

Method Detail

isEmpty

public static boolean isEmpty(String str)

Check is a String is empty ("") or null.

Parameters:

str - String to inspect.

Returns:

true if the string is empty or null, false otherwise.

substringAfterLast

public static String substringAfterLast(String str,
                        String pattern)

Parameters:

str - the string to search in

pattern - the pattern to search in str

Returns:

the substring in str after the last occurrence of pattern, or the full str if pattern does not appear

areEqual

public static boolean areEqual(String expected,
               String actual)

Parameters:

expected - the expected string

actual - the actual string

Returns:

true if the given strings are equal, false otherwise

join

public static String join(Collection<?> collection,
          String inputSeparator)

Joins the elements of the provided collection into a single string containing the provided elements. No delimiter is added before or after the list. A null separator is the same as an empty string ("").

Parameters:

collection - the collection of values to join together, may be null

inputSeparator - the separator string to use, null treated as ""

Returns:

the joined string