Modul com.github.hypfvieh.java.utils

Package com.github.hypfvieh.util

Klasse TypeUtil

java.lang.Object

com.github.hypfvieh.util.TypeUtil

public final class TypeUtil
extends Object

Class providing a set of methods for converting and/or checking of various data types.

Autor:

hypfvieh

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
static <T> List<T>	createList(T... _entries)	Creates a list from a varargs parameter array.
static <T> Map<T,T>	createMap(T... _args)	Creates a map from the even-sized parameter array.
static Properties	createProperties(String... _keysAndVals)	Factory method for Properties from an even-sized String array.
static Pattern	createRegExPatternIfValid(String _regExStr)	Creates a RegEx Pattern object, if given String is a valid regular expression.
static int	defaultIfNotInteger(String _possibleInt, int _default)	Returns integer converted from string or default if string could not be converted to int.
static <T> T	defaultIfNull(T _val, T _default)	Returns the default if value is null or value if value is not null.
static boolean	equalsOne(Object _obj, Object... _arrObj)	Veraltet. Use CompareUtil.equalsOne(Object, Object...)
static int	indexOfByteArray(byte[] _heyStackArray, byte[] _needleArray)	Retrieves the position of a byte array in another byte array.
static boolean	isAnyNull(Object... _objects)	Veraltet. Use CompareUtil.isAnyNull(Object...)
static boolean	isDouble(String _str)	Checks if the given string is a valid double (including negative values).
static boolean	isDouble(String _str, boolean _allowNegative)	Checks if the given string is a valid double.
static boolean	isDouble(String _str, char _separator)	Checks if the given string is a valid double (including negative values) using the given separator.
static boolean	isDouble(String _str, char _separator, boolean _allowNegative)	Checks if the given string is a valid double.
static boolean	isInteger(String _str)	Check if string is integer (including negative integers).
static boolean	isInteger(String _str, boolean _allowNegative)	Check if string is an either positive or negative integer.
static boolean	isValidNetworkPort(int _port, boolean _allowWellKnown)	Check if the given value is a valid network port (1 - 65535).
static boolean	isValidNetworkPort(String _str, boolean _allowWellKnown)
static boolean	isValidRegex(String _regExStr)	Checks if given String is a valid regular expression.
static <T> List<List<T>>	splitList(List<T> _list, int _elements)	Split a List into equal parts.
static <T> List<List<T>>	splitListToSubLists(List<T> _list, int _listCount)	Splits a given list to _listCount subLists.
static <K, V> List<Map<K,V>>	splitMap(Map<K,V> _map, int _nbElements)	Splits _map to a list of maps where each map has _nbElements.
static boolean	strToBool(String _str)	Veraltet, zur Entfernung: Dieses API-Element wird in einer zukünftigen Version entfernt. use ConverterUtil.strToBool(String)
static void	throwIfAnyNull(String _errMsg, Object... _objects)	Veraltet. Use CompareUtil.throwIfAnyNull(String, Object...)

Von Klasse geerbte Methoden java.lang.Object

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

Methodendetails

strToBool

@Deprecated(forRemoval=true,
            since="2022-01-28")
public static boolean strToBool(String _str)

Veraltet, zur Entfernung: Dieses API-Element wird in einer zukünftigen Version entfernt.

use ConverterUtil.strToBool(String)

Returns true if string matches certain boolean values.

Parameter:

_str - string to validate

Gibt zurück:

true if string represents a true (like 'yes','ja',1) value, false otherwise

isDouble

public static boolean isDouble(String _str)

Checks if the given string is a valid double (including negative values). Separator is based on the used locale.

Parameter:

_str - string to check

Gibt zurück:

true if valid double, false otherwise

isDouble

public static boolean isDouble(String _str,
 char _separator)

Checks if the given string is a valid double (including negative values) using the given separator.

Parameter:

_str - string to check

_separator - separator to use

Gibt zurück:

true if valid double, false otherwise

isDouble

public static boolean isDouble(String _str,
 boolean _allowNegative)

Checks if the given string is a valid double. The used separator is based on the used system locale

Parameter:

_str - string to validate

_allowNegative - set to true if negative double should be allowed

Gibt zurück:

true if given string is double, false otherwise

isDouble

public static boolean isDouble(String _str,
 char _separator,
 boolean _allowNegative)

Checks if the given string is a valid double.

Parameter:

_str - string to validate

_separator - seperator used (e.g. "." (dot) or "," (comma))

_allowNegative - set to true if negative double should be allowed

Gibt zurück:

true if given string is double, false otherwise

isInteger

public static boolean isInteger(String _str)

Check if string is integer (including negative integers).

Parameter:

_str - string to check

Gibt zurück:

true if integer (positive or negative), false otherwise

isInteger

public static boolean isInteger(String _str,
 boolean _allowNegative)

Check if string is an either positive or negative integer.

Parameter:

_str - string to validate

_allowNegative - negative integer allowed

Gibt zurück:

true if integer, false otherwise

isValidNetworkPort

public static boolean isValidNetworkPort(int _port,
 boolean _allowWellKnown)

Check if the given value is a valid network port (1 - 65535).

Parameter:

_port - 'port' to check

_allowWellKnown - allow ports below 1024 (aka reserved well known ports)

Gibt zurück:

true if int is a valid network port, false otherwise

isValidNetworkPort

public static boolean isValidNetworkPort(String _str,
 boolean _allowWellKnown)

Parameter:

_str - string to check

_allowWellKnown - allow well known port

Gibt zurück:

true if valid port, false otherwise

Siehe auch:

• isValidNetworkPort(int, boolean)

isValidRegex

public static boolean isValidRegex(String _regExStr)

Checks if given String is a valid regular expression.

Parameter:

_regExStr - regex string to check

Gibt zurück:

true if given string is valid regex, false otherwise

createRegExPatternIfValid

public static Pattern createRegExPatternIfValid(String _regExStr)

Creates a RegEx Pattern object, if given String is a valid regular expression.

Parameter:

_regExStr - regex string to check

Gibt zurück:

Pattern-Object or null if given String is no valid RegEx

createList

@SafeVarargs
public static <T> List<T> createList(T... _entries)

Creates a list from a varargs parameter array. The generic list is created with the same type as the parameters.

Typparameter:

T - list type

Parameter:

_entries - list entries

Gibt zurück:

list

createMap

@SafeVarargs
public static <T> Map<T,T> createMap(T... _args)

Creates a map from the even-sized parameter array.

Typparameter:

T - map type

Parameter:

_args - parameter array, any type

Gibt zurück:

map of parameter type

isAnyNull

@Deprecated
public static boolean isAnyNull(Object... _objects)

Veraltet.

Use CompareUtil.isAnyNull(Object...)

Checks if any of the passed in objects is null.

Parameter:

_objects - array of objects, may be null

Gibt zurück:

true if null found, false otherwise

throwIfAnyNull

@Deprecated
public static void throwIfAnyNull(String _errMsg,
 Object... _objects)

Veraltet.

Use CompareUtil.throwIfAnyNull(String, Object...)

Parameter:

_errMsg - error message

_objects - objects to check

Siehe auch:

• CompareUtil.throwIfAnyNull(String, Object...)

equalsOne

@Deprecated
public static boolean equalsOne(Object _obj,
 Object... _arrObj)

Veraltet.

Use CompareUtil.equalsOne(Object, Object...)

Returns true if the specified object equals at least one of the specified other objects.

Parameter:

_obj - object

_arrObj - array of objects to compare to

Gibt zurück:

true if equal, false otherwise or if either parameter is null

splitMap

public static <K,
V> List<Map<K,V>> splitMap(Map<K,V> _map,
 int _nbElements)
                                      throws InstantiationException,
IllegalAccessException

Splits _map to a list of maps where each map has _nbElements. Last map in list maybe shorter if _map.size() is not divideable by _nElements.

Typparameter:

K - key type

V - value type

Parameter:

_map - map to split

_nbElements - elements per map

Gibt zurück:

List of Maps

Löst aus:

IllegalAccessException - on error

InstantiationException - on error

splitList

public static <T> List<List<T>> splitList(List<T> _list,
 int _elements)

Split a List into equal parts. Last list could be shorter than _elements.

Typparameter:

T - type

Parameter:

_list - list to split

_elements - elements per list

Gibt zurück:

list of lists

splitListToSubLists

public static <T> List<List<T>> splitListToSubLists(List<T> _list,
 int _listCount)

Splits a given list to _listCount subLists. Last list maybe shorter or longer than all previous list (depending on _list size).

Parameter:

_list - list to split

_listCount - sublists to create

Gibt zurück:

List of Lists, null if _list was null, empty list if _list was empty

createProperties

public static Properties createProperties(String... _keysAndVals)

Factory method for Properties from an even-sized String array.

Parameter:

_keysAndVals - String array of keys and values, may be null or even-numbered String array

Gibt zurück:

new Properties object

defaultIfNotInteger

public static int defaultIfNotInteger(String _possibleInt,
 int _default)

Returns integer converted from string or default if string could not be converted to int.

Parameter:

_possibleInt - string to convert

_default - default to use if string cannot be converted

Gibt zurück:

int

defaultIfNull

public static <T> T defaultIfNull(T _val,
 T _default)

Returns the default if value is null or value if value is not null.

Typparameter:

T - type to check/return

Parameter:

_val - value to check for null

_default - default to use when value is null

Gibt zurück:

value or default

Seit:

1.2.1 - 2022-05-19

indexOfByteArray

public static int indexOfByteArray(byte[] _heyStackArray,
 byte[] _needleArray)

Retrieves the position of a byte array in another byte array.

Parameter:

_heyStackArray - array to search

_needleArray - array to find

Gibt zurück:

position of found array or -1 if not found

Seit:

1.2.1 - 2024-03-21