Class JsrExpressionParser
- java.lang.Object
- org.springframework.batch.core.jsr.configuration.support.JsrExpressionParser
public class JsrExpressionParser extends java.lang.Object
Support class for parsing JSR-352 expressions. The JSR-352 expression syntax, for example conditional/elvis statements need to be transformed a bit to be valid SPeL expressions.
- Since:
- 3.0
- Author:
- Chris Schaefer
Constructor Summary
Constructors Constructor Description JsrExpressionParser()
Creates a new instance of this expression parser without and expression resolver.JsrExpressionParser(org.springframework.beans.factory.config.BeanExpressionResolver beanExpressionResolver, org.springframework.beans.factory.config.BeanExpressionContext beanExpressionContext)
Creates a new instances of this expression parser with the provided expression resolver and context to evaluate against.
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
parseExpression(java.lang.String expression)
Parses the provided expression, applying any transformations needed to evaluate as a SPeL expression.
Constructor Detail
JsrExpressionParser
public JsrExpressionParser()
Creates a new instance of this expression parser without and expression resolver. Creating an instance via this constructor will still parse expressions but no resolution of operators will occur as its expected the caller will.
JsrExpressionParser
public JsrExpressionParser(org.springframework.beans.factory.config.BeanExpressionResolver beanExpressionResolver, org.springframework.beans.factory.config.BeanExpressionContext beanExpressionContext)
Creates a new instances of this expression parser with the provided expression resolver and context to evaluate against.
- Parameters:
beanExpressionResolver
- the expression resolver to use when resolving expressionsbeanExpressionContext
- the expression context to resolve expressions against
Method Detail
parseExpression
public java.lang.String parseExpression(java.lang.String expression)
Parses the provided expression, applying any transformations needed to evaluate as a SPeL expression.
- Parameters:
expression
- the expression to parse and transform- Returns:
- a JSR-352 transformed expression that can be evaluated by a SPeL parser