ai.expert.nlapi.utils

Class StringUtils

java.lang.Object

ai.expert.nlapi.utils.StringUtils

public class StringUtils
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
StringUtils() should not be used

Method Summary

Modifier and Type	Method and Description
static boolean	equals(java.lang.String str1, java.lang.String str2) Compares two Strings
static boolean	isBlank(java.lang.String s) Checks if a String is empty (""), null or whitespace only.
static boolean	isEmpty(java.lang.String s) Checks if a String is empty ("") or null.
static boolean	isNotBlank(java.lang.String s) Checks if a String is not empty (""), not null and not whitespace only.
static java.lang.String	trim(java.lang.String str) Trim String, if null returns null
static java.lang.String	trimToEmpty(java.lang.String str) Trim String, if null or empty returns empty
static java.lang.String	trimToNull(java.lang.String str) Trim String, if null or empty returns null

Methods inherited from class java.lang.Object

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

Constructor Detail

StringUtils

public StringUtils()

should not be used

Method Detail

isEmpty

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

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

Parameters:

s - the String to check, may be null

Returns:

true if the String is empty or null

isBlank

public static boolean isBlank(java.lang.String s)

Checks if a String is empty (""), null or whitespace only.

Parameters:

s - the String to check, may be null

Returns:

true if the String is null, empty or whitespace only

isNotBlank

public static boolean isNotBlank(java.lang.String s)

Checks if a String is not empty (""), not null and not whitespace only.

Parameters:

s - the String to check, may be null

Returns:

true if the CharSequence is not empty and not null and not whitespace only

trim

public static java.lang.String trim(java.lang.String str)

Trim String, if null returns null

Parameters:

str - the String to be trimmed

Returns:

the trimmed string

trimToNull

public static java.lang.String trimToNull(java.lang.String str)

Trim String, if null or empty returns null

Parameters:

str - the String to be trimmed

Returns:

the trimmed String

trimToEmpty

public static java.lang.String trimToEmpty(java.lang.String str)

Trim String, if null or empty returns empty

Parameters:

str - the String to be trimmed

Returns:

the trimmed String

equals

public static boolean equals(java.lang.String str1,
                             java.lang.String str2)

Compares two Strings

Parameters:

str1 - the first String

str2 - the second String

Returns:

true if the Strings are equal, case-sensitive