de.carne.util

Class Strings

java.lang.Object

de.carne.util.Strings

public final class Strings
extends java.lang.Object

Utility class providing String related functions.

Method Summary

Modifier and Type	Method and Description
static boolean	isEmpty(java.lang.String s) Check whether a String is empty.
static boolean	notEmpty(java.lang.String s) Check whether a String is not empty.
static java.lang.String	safe(java.lang.String s) Make sure a String is not null.
static java.lang.String	safeTrim(java.lang.String s) Make sure a String is not null and trimmed.

Methods inherited from class java.lang.Object

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

Method Detail

isEmpty

public static boolean isEmpty(@Nullable
                              java.lang.String s)

Check whether a String is empty.

A String is considered empty if it is either null or of length 0.

Parameters:

s - The String to check.

Returns:

true if the string is empty.

notEmpty

public static boolean notEmpty(@Nullable
                               java.lang.String s)

Check whether a String is not empty.

A String is considered empty if it is either null or of length 0.

Parameters:

s - The String to check.

Returns:

true if the string is not empty.

safe

public static java.lang.String safe(@Nullable
                                    java.lang.String s)

Make sure a String is not null.

Parameters:

s - The String to secure.

Returns:

The submitted String or "" if null was submitted.

safeTrim

public static java.lang.String safeTrim(@Nullable
                                        java.lang.String s)

Make sure a String is not null and trimmed.

Parameters:

s - The String to secure.

Returns:

The submitted String in trimmred form or "" if null was submitted.