Package 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
    Description
    static final ParserContext
    TEMPLATE_EXPRESSION
    The default ParserContext implementation that enables template expression parsing.

  • Method Summary

    Modifier and Type
    Method
    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, returns the prefix that identifies the end of an expression block within a string.
    boolean
    isTemplate()
    Whether the expression being parsed is a template.

  • Field Details

    • TEMPLATE_EXPRESSION

      static final ParserContext TEMPLATE_EXPRESSION
      The default ParserContext implementation that enables template expression parsing.

      The expression prefix is "#{", and the expression suffix is "}".

      See Also:

  • Method Details

    • isTemplate

      boolean isTemplate()
      Whether the expression being parsed is a template.

      A template consists of literal text that can be mixed with expressions. 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, returns 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