org.springframework.expression

接口 ParserContext

所有已知实现类:

TemplateParserContext

public interface ParserContext

Input provided to an expression parser that can influence an expression parsing/compilation routine.

从以下版本开始:

3.0

作者:

Keith Donald, Andy Clement

字段概要

字段

限定符和类型	字段和说明
static ParserContext	TEMPLATE_EXPRESSION The default ParserContext implementation that enables template expression parsing mode.

方法概要

限定符和类型	方法和说明
String	getExpressionPrefix() For template expressions, returns the prefix that identifies the start of an expression block within a string.
String	getExpressionSuffix() For template expressions, return the prefix that identifies the end of an expression block within a string.
boolean	isTemplate() Whether or not the expression being parsed is a template.

字段详细资料

TEMPLATE_EXPRESSION

static final ParserContext TEMPLATE_EXPRESSION

The default ParserContext implementation that enables template expression parsing mode. The expression prefix is "#{" and the expression suffix is "}".

另请参阅:

isTemplate()

方法详细资料

isTemplate

boolean isTemplate()

Whether or not the expression being parsed is a template. A template expression consists of literal text that can be mixed with evaluatable blocks. Some examples:

           Some literal text
     Hello #{name.firstName}!
     #{3 + 4}
 

返回:

true if the expression is a template, false otherwise

getExpressionPrefix

String getExpressionPrefix()

For template expressions, returns the prefix that identifies the start of an expression block within a string. For example: "${"

返回:

the prefix that identifies the start of an expression

getExpressionSuffix

String getExpressionSuffix()

For template expressions, return the prefix that identifies the end of an expression block within a string. For example: "}"

返回:

the suffix that identifies the end of an expression