org.togglz.core.util

Class Strings

java.lang.Object

org.togglz.core.util.Strings

public class Strings
extends Object

Constructor Summary

Constructors

Constructor and Description
Strings()

Method Summary

Modifier and Type	Method and Description
static boolean	equalsIgnoreCase(String s, String v)
static boolean	isBlank(String s)
static boolean	isEmpty(String s) Returns whether the specified string is empty while remaining null-safe.
static boolean	isNotBlank(String s)
static boolean	isNotEmpty(String s) Returns whether the specified string is not empty while remaining null-safe.
static String	join(Iterable<?> col, String separator)
static String	joinClassNames(Iterable<?> iterable)
static List<String>	splitAndTrim(String value, String regex)
static Boolean	toBoolean(String s) Attempts to return the best boolean representation for the specified string while remaining null-safe and ignoring any leading/trailing whitespace as well as case.
static String	trim(String s) Trims the specified string while remaining null-safe.
static String	trimToNull(String s) Trims the specified string and, if the resulting string is empty, will return null instead.

Methods inherited from class java.lang.Object

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

Constructor Detail

Strings

public Strings()

Method Detail

join

public static String join(Iterable<?> col,
                          String separator)

isBlank

public static boolean isBlank(String s)

isNotBlank

public static boolean isNotBlank(String s)

isEmpty

public static boolean isEmpty(String s)

Returns whether the specified string is empty while remaining null-safe.

Parameters:

s - the string to be checked (may be null)

Returns:

true if s is either null or contains no characters.

isNotEmpty

public static boolean isNotEmpty(String s)

Returns whether the specified string is not empty while remaining null-safe.

Parameters:

s - the string to be checked (may be null)

Returns:

true if s is not null and contains at least one character.

equalsIgnoreCase

public static boolean equalsIgnoreCase(String s,
                                       String v)

splitAndTrim

public static List<String> splitAndTrim(String value,
                                        String regex)

trim

public static String trim(String s)

Trims the specified string while remaining null-safe.

Parameters:

s - the string to be trimmed (may be null)

Returns:

The trimmed s or null if s is null.

trimToNull

public static String trimToNull(String s)

Trims the specified string and, if the resulting string is empty, will return null instead.

Parameters:

s - the string to be trimmed (may be null)

Returns:

The trimmed s or null if s is null before or after being trimmed.

joinClassNames

public static String joinClassNames(Iterable<?> iterable)

toBoolean

public static Boolean toBoolean(String s)

Attempts to return the best boolean representation for the specified string while remaining null-safe and ignoring any leading/trailing whitespace as well as case.

This method simply uses a set of predefined values that it compares s to in order to determine the best Boolean representation. If s does not fall into either category, it is considered invalid and will result in an IllegalArgumentException being thrown.

Parameters:

s - the string to be converted into a Boolean

Returns:

The Boolean representation of s or null if s is null.

Throws:

IllegalArgumentException - If s is non-null and does not match any of the predefined values.