Package cn.xuanyuanli.core.util.support

Class PatternHolder

java.lang.Object

cn.xuanyuanli.core.util.support.PatternHolder

public class PatternHolder
extends Object

因为Pattern会在初始化的时候进行编译，此类提供了Pattern缓存
注意：此类仅适用于固定的regex缓存。对于动态的regex，请直接使用Pattern.compile，否则将出现OOM

Author:

John Li

Field Summary

Fields

Modifier and Type	Field	Description
private static final ConcurrentMap<String,Pattern>	PATTERNS	模式

Constructor Summary

Constructors

Constructor	Description
PatternHolder()

Method Summary

Modifier and Type	Method	Description
static Pattern	compile(String regex, int flags)
static String	escapeExprSpecialWord(String keyword)	Texts.escapeExprSpecialWord(String)
static Pattern	getPattern(String regex)	获得模式
static Pattern	getPattern(String regex, boolean ignoreCase)	获得模式

Methods inherited from class java.lang.Object

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

Field Details

PATTERNS

private static final ConcurrentMap<String,Pattern> PATTERNS

模式

Constructor Details

PatternHolder

public PatternHolder()

Method Details

getPattern

public static Pattern getPattern(String regex)

获得模式

Parameters:

regex - 正则表达式

Returns:

Pattern

getPattern

public static Pattern getPattern(String regex,
 boolean ignoreCase)

获得模式

Parameters:

regex - 正则表达式

ignoreCase - 忽略大小写

Returns:

Pattern

escapeExprSpecialWord

public static String escapeExprSpecialWord(String keyword)

Texts.escapeExprSpecialWord(String)

Parameters:

keyword - 关键字

Returns:

String

compile

public static Pattern compile(String regex,
 int flags)

Parameters:

regex - 正则表达式

flags - Match flags, a bit mask that may include CASE_INSENSITIVE, MULTILINE, DOTALL, UNICODE_CASE, CANON_EQ, UNIX_LINES, LITERAL, UNICODE_CHARACTER_CLASS and COMMENTS

Returns:

Pattern

See Also:

• Pattern.compile(String, int)