org.hibernate.validator.internal.util

Class StringHelper

java.lang.Object

org.hibernate.validator.internal.util.StringHelper

public class StringHelper
extends Object

Helper class dealing with strings.

Author:

Gunnar Morling

Method Summary

Modifier and Type	Method and Description
static String	decapitalize(String string) Returns the given string, with its first letter changed to lower-case unless the string starts with more than one upper-case letter, in which case the string will be returned unaltered.
static boolean	isNullOrEmptyString(String value) Indicates if the string is null or is empty ie only contains whitespaces.
static String	join(Iterable<?> iterable, String separator) Joins the elements of the given iterable to a string, separated by the given separator string.
static String	join(Object[] array, String separator) Joins the elements of the given array to a string, separated by the given separator string.
static String	toShortString(Member member) Creates a compact string representation of the given member, useful for debugging or toString() methods.
static String	toShortString(Type type) Creates a compact string representation of the given type, useful for debugging or toString() methods.

Methods inherited from class java.lang.Object

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

Method Detail

join

public static String join(Object[] array,
                          String separator)

Joins the elements of the given array to a string, separated by the given separator string.

Parameters:

array - the array to join

separator - the separator string

Returns:

a string made up of the string representations of the given array's members, separated by the given separator string

join

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

Joins the elements of the given iterable to a string, separated by the given separator string.

Parameters:

iterable - the iterable to join

separator - the separator string

Returns:

a string made up of the string representations of the given iterable members, separated by the given separator string

decapitalize

public static String decapitalize(String string)

Returns the given string, with its first letter changed to lower-case unless the string starts with more than one upper-case letter, in which case the string will be returned unaltered.

Provided to avoid a dependency on the Introspector API which is not available on the Android platform (HV-779).

Parameters:

string - the string to decapitalize

Returns:

the given string, decapitalized. null is returned if null is passed as input; An empty string is returned if an empty string is passed as input

See Also:

Introspector.decapitalize(String)

isNullOrEmptyString

public static boolean isNullOrEmptyString(String value)

Indicates if the string is null or is empty ie only contains whitespaces.

Parameters:

value - the string considered

Returns:

true if the string is null or only contains whitespaces

toShortString

public static String toShortString(Member member)

Creates a compact string representation of the given member, useful for debugging or toString() methods. Package names are shortened, e.g. "org.hibernate.validator.internal.engine" becomes "o.h.v.i.e". Not to be used for user-visible log messages.

toShortString

public static String toShortString(Type type)

Creates a compact string representation of the given type, useful for debugging or toString() methods. Package names are shortened, e.g. "org.hibernate.validator.internal.engine" becomes "o.h.v.i.e". Not to be used for user-visible log messages.