StringUdfSource (Hasor-DataQL/FunctionX 4.1.7 API)

java.lang.Object
- net.hasor.dataql.fx.basic.StringUdfSource

所有已实现的接口:

UdfSource, UdfSourceAssembly
```
@Singleton
public class StringUdfSource
extends Object
implements UdfSourceAssembly
```
字符串函数 import 'net.hasor.dataql.fx.basic.StringUdfSource' as string;

版本:

: 2019-12-12

嵌套类概要
- 从接口继承的嵌套类/接口 net.hasor.dataql.UdfSourceAssembly
  UdfSourceAssembly.TypeUdfMap, UdfSourceAssembly.UdfName, UdfSourceAssembly.UdfParams

构造器概要

构造器
构造器和说明

StringUdfSource()

构造器
构造器和说明
`StringUdfSource()`

方法概要

所有方法静态方法具体方法
限定符和类型	方法和说明
`static String`	`alignCenter(String str, String padChar, int len)` 字符串在指定长度下进行剧中对齐，空出来的字符使用padChar补齐。
`static String`	`alignLeft(String str, String padChar, int len)` 字符串在指定长度下进行左对齐，空出来的字符使用padChar补齐。
`static String`	`alignRight(String str, String padChar, int len)` 字符串在指定长度下进行右对齐，空出来的字符使用padChar补齐。
`static boolean`	`contains(String str, String searchStr)` Checks if String contains a search String, handling `null`.
`static boolean`	`containsAny(String str, List<String> searchStrArray)` Checks if the String contains any character in the given set of string.
`static boolean`	`containsAnyIgnoreCase(String str, List<String> searchStrArray)` Case in-sensitive Checks if the String contains any character in the given set of string.
`static boolean`	`containsIgnoreCase(String str, String searchStr)` Checks if String contains a search String irrespective of case, handling `null`.
`static boolean`	`endsWith(String str, String suffix)` Case insensitive check if a String ends with a specified suffix.
`static boolean`	`endsWithIgnoreCase(String str, String suffix)` Case insensitive check if a String ends with a specified suffix.
`static boolean`	`equalsIgnoreCase(String str1, String str2)` 忽略大小写比较相等
`static String`	`firstCharToLowerCase(String value)` 转换首字母小写
`static String`	`firstCharToUpperCase(String value)` 转换首字母大写
`static String`	`humpToLine(String str)` 驼峰转下划线
`static int`	`indexOf(String str, String searchStr)` Finds the first index within a String, handling `null`.
`static int`	`indexOfIgnoreCase(String str, String searchStr)` Case in-sensitive find of the first index within a String.
`static int`	`indexOfIgnoreCaseWithStart(String str, String searchStr, int startPos)` Case in-sensitive find of the first index within a String from the specified position.
`static int`	`indexOfWithStart(String str, String searchStr, int startPos)` Finds the first index within a String from a start position, handling `null`.
`static boolean`	`isEmpty(String str)` Checks if a String is empty ("") or null.
`static String`	`join(List<Object> array, String separator)` Joins the elements of the provided array into a single String containing the provided list of elements.
`static int`	`lastIndexOf(String str, String searchStr)` Finds the last index within a String, handling `null`.
`static int`	`lastIndexOfIgnoreCase(String str, String searchStr)` Case in-sensitive find of the last index within a String from the specified position.
`static int`	`lastIndexOfIgnoreCaseWithStart(String str, String searchStr, int startPos)` Case in-sensitive find of the last index within a String from the specified position.
`static int`	`lastIndexOfWithStart(String str, String searchChar, int startPos)` Finds the last index within a String from a start position, handling `null`.
`static String`	`left(String str, int len)` Gets the leftmost `len` characters of a String.
`static String`	`lineToHump(String str)` 下划线转驼峰
`static String`	`right(String str, int len)` Gets the rightmost `len` characters of a String.
`static boolean`	`startsWith(String str, String prefix)` Check if a String starts with a specified prefix.
`static boolean`	`startsWithIgnoreCase(String str, String prefix)` Case insensitive check if a String starts with a specified prefix.
`static String`	`sub(String str, int start, int end)` Gets a substring from the specified String avoiding exceptions.
`static String`	`toLowerCase(String value)` 转换小写
`static String`	`toUpperCase(String value)` 转换大写
`static String`	`trim(String str)` 截断两边空格，如果为空返回为空。

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 net.hasor.dataql.UdfSourceAssembly
getPredicate, getSupplier, getUdfResource

构造器详细资料
- StringUdfSource
```
public StringUdfSource()
```

方法详细资料

startsWith

public static boolean startsWith(String str,
                                 String prefix)

Check if a String starts with a specified prefix.

startsWithIgnoreCase

public static boolean startsWithIgnoreCase(String str,
                                           String prefix)

Case insensitive check if a String starts with a specified prefix.

endsWith

public static boolean endsWith(String str,
                               String suffix)

Case insensitive check if a String ends with a specified suffix.

endsWithIgnoreCase

public static boolean endsWithIgnoreCase(String str,
                                         String suffix)

Case insensitive check if a String ends with a specified suffix.

lineToHump

public static String lineToHump(String str)

下划线转驼峰

humpToLine

public static String humpToLine(String str)

驼峰转下划线

firstCharToUpperCase

public static String firstCharToUpperCase(String value)

转换首字母大写

firstCharToLowerCase

public static String firstCharToLowerCase(String value)

转换首字母小写

toUpperCase

public static String toUpperCase(String value)

转换大写

toLowerCase

public static String toLowerCase(String value)

转换小写

indexOf

public static int indexOf(String str,
                          String searchStr)

Finds the first index within a String, handling null. This method uses String.indexOf(String).

indexOfWithStart

public static int indexOfWithStart(String str,
                                   String searchStr,
                                   int startPos)

Finds the first index within a String from a start position, handling null. This method uses String.indexOf(String, int).

indexOfIgnoreCase

public static int indexOfIgnoreCase(String str,
                                    String searchStr)

Case in-sensitive find of the first index within a String.

indexOfIgnoreCaseWithStart

public static int indexOfIgnoreCaseWithStart(String str,
                                             String searchStr,
                                             int startPos)

Case in-sensitive find of the first index within a String from the specified position.

lastIndexOf

public static int lastIndexOf(String str,
                              String searchStr)

Finds the last index within a String, handling null. This method uses String.lastIndexOf(String).

lastIndexOfWithStart

public static int lastIndexOfWithStart(String str,
                                       String searchChar,
                                       int startPos)

Finds the last index within a String from a start position, handling null. This method uses String.lastIndexOf(String, int).

lastIndexOfIgnoreCase

public static int lastIndexOfIgnoreCase(String str,
                                        String searchStr)

Case in-sensitive find of the last index within a String from the specified position.

lastIndexOfIgnoreCaseWithStart

public static int lastIndexOfIgnoreCaseWithStart(String str,
                                                 String searchStr,
                                                 int startPos)

Case in-sensitive find of the last index within a String from the specified position.

contains

public static boolean contains(String str,
                               String searchStr)

Checks if String contains a search String, handling null. This method uses String.indexOf(String).

containsIgnoreCase
```
public static boolean containsIgnoreCase(String str,
                                         String searchStr)
```
Checks if String contains a search String irrespective of case, handling null. Case-insensitivity is defined as by String.equalsIgnoreCase(String).

containsAny

public static boolean containsAny(String str,
                                  List<String> searchStrArray)

Checks if the String contains any character in the given set of string.

containsAnyIgnoreCase

public static boolean containsAnyIgnoreCase(String str,
                                            List<String> searchStrArray)

Case in-sensitive Checks if the String contains any character in the given set of string.

trim
```
public static String trim(String str)
```
截断两边空格，如果为空返回为空。

sub

public static String sub(String str,
                         int start,
                         int end)

Gets a substring from the specified String avoiding exceptions.

left

public static String left(String str,
                          int len)

Gets the leftmost len characters of a String.

right

public static String right(String str,
                           int len)

Gets the rightmost len characters of a String.

alignRight

public static String alignRight(String str,
                                String padChar,
                                int len)

字符串在指定长度下进行右对齐，空出来的字符使用padChar补齐。如果传入多个字符将会取第一个字符。

alignLeft

public static String alignLeft(String str,
                               String padChar,
                               int len)

字符串在指定长度下进行左对齐，空出来的字符使用padChar补齐。如果传入多个字符将会取第一个字符。

alignCenter

public static String alignCenter(String str,
                                 String padChar,
                                 int len)

字符串在指定长度下进行剧中对齐，空出来的字符使用padChar补齐。如果传入多个字符将会取第一个字符。

join

public static String join(List<Object> array,
                          String separator)

Joins the elements of the provided array into a single String containing the provided list of elements.

isEmpty
```
public static boolean isEmpty(String str)
```
Checks if a String is empty ("") or null.

equalsIgnoreCase

public static boolean equalsIgnoreCase(String str1,
                                       String str2)

忽略大小写比较相等

类 StringUdfSource

嵌套类概要

从接口继承的嵌套类/接口 net.hasor.dataql.UdfSourceAssembly

构造器概要