org.springframework.expression

Interface ParserContext

All Known Implementing Classes:

TemplateParserContext

public interface ParserContext

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

Since:

3.0

Author:

Keith Donald, Andy Clement

Field Summary

Fields

Modifier and Type	Field and Description
static ParserContext	TEMPLATE_EXPRESSION The default ParserContext implementation that enables template expression parsing mode.

Method Summary

Modifier and Type	Method and Description
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.

Field Detail

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 }.

See Also:

isTemplate()

Method Detail

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}
 

Returns:

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: "${"

Returns:

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: "}"

Returns:

the suffix that identifies the end of an expression