Package org.aoju.bus.core.text

Class Placeholder

java.lang.Object

org.aoju.bus.core.text.Placeholder

All Implemented Interfaces:

Function<String,String>, UnaryOperator<String>

public class Placeholder
extends Object
implements UnaryOperator<String>

简单的占位符解析器给定占位符的左右边界符号以及转义符， 将允许把一段字符串中的占位符解析并替换为指定内容，支持指定转义符对边界符号进行转义 比如：

   
 String text = "select * from #[tableName] where id = #[id]";
 PlaceholderParser parser = new PlaceholderParser(str -> "?", "#[", "]");
 parser.apply(text); // = select * from ? where id = ?
 
 

Since:

Java 17+

Author:

Kimi Liu

Constructor Summary

Constructors

Constructor	Description
Placeholder(UnaryOperator<String> processor, String prefix, String suffix)	创建一个占位符解析器，默认转义符为"\"
Placeholder(UnaryOperator<String> processor, String prefix, String suffix, char escape)	创建一个占位符解析器

Method Summary

Modifier and Type	Method	Description
String	apply(String text)	解析并替换字符串中的占位符

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose

Constructor Details

Placeholder

public Placeholder(UnaryOperator<String> processor,
 String prefix,
 String suffix)

创建一个占位符解析器，默认转义符为"\"

Parameters:

processor - 占位符处理器

prefix - 占位符开始符号，不允许为空

suffix - 占位符结束符号，不允许为空

Placeholder

public Placeholder(UnaryOperator<String> processor,
 String prefix,
 String suffix,
 char escape)

创建一个占位符解析器

Parameters:

processor - 占位符处理器

prefix - 占位符开始符号，不允许为空

suffix - 占位符结束符号，不允许为空

escape - 转义符

Method Details

apply

public String apply(String text)

解析并替换字符串中的占位符

Specified by:

apply in interface Function<String,String>

Parameters:

text - 待解析的字符串

Returns:

处理后的字符串