Package org.springframework.integration.expression

Class ExpressionUtils

java.lang.Object
org.springframework.integration.expression.ExpressionUtils
public final class ExpressionUtils
extends java.lang.Object
Utility class with static methods for helping with evaluation of SpEL expressions.
Since:
2.2

  • Method Summary

    Modifier and Type Method Description
    static org.springframework.expression.spel.support.SimpleEvaluationContext createSimpleEvaluationContext()
    Used to create a context with no BeanFactory, usually in tests.
    static org.springframework.expression.spel.support.SimpleEvaluationContext createSimpleEvaluationContext​(org.springframework.beans.factory.BeanFactory beanFactory)
    Obtains the context from the beanFactory if not null; emits a warning if the beanFactory is null.
    static org.springframework.expression.spel.support.StandardEvaluationContext createStandardEvaluationContext()
    Used to create a context with no BeanFactory, usually in tests.
    static org.springframework.expression.spel.support.StandardEvaluationContext createStandardEvaluationContext​(org.springframework.beans.factory.BeanFactory beanFactory)
    Obtains the context from the beanFactory if not null; emits a warning if the beanFactory is null.
    static java.io.File expressionToFile​(org.springframework.expression.Expression expression, org.springframework.expression.EvaluationContext evaluationContext, org.springframework.messaging.Message<?> message, java.lang.String propertyName)
    Evaluate an expression and return a File object; the expression can evaluate to a String or File.
    static org.springframework.expression.Expression intExpression​(java.lang.String expression)
    Return a ValueExpression for a simple literal, otherwise a SpelExpression.
    static org.springframework.expression.Expression longExpression​(java.lang.String expression)
    Return a ValueExpression for a simple literal, otherwise a SpelExpression.

    Methods inherited from class java.lang.Object

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

  • Method Details

    • createStandardEvaluationContext

      public static org.springframework.expression.spel.support.StandardEvaluationContext createStandardEvaluationContext()
      Used to create a context with no BeanFactory, usually in tests.
      Returns:
      The evaluation context.

    • createSimpleEvaluationContext

      public static org.springframework.expression.spel.support.SimpleEvaluationContext createSimpleEvaluationContext()
      Used to create a context with no BeanFactory, usually in tests.
      Returns:
      The evaluation context.
      Since:
      4.3.15

    • createStandardEvaluationContext

      public static org.springframework.expression.spel.support.StandardEvaluationContext createStandardEvaluationContext​(@Nullable org.springframework.beans.factory.BeanFactory beanFactory)
      Obtains the context from the beanFactory if not null; emits a warning if the beanFactory is null.
      Parameters:
      beanFactory - The bean factory.
      Returns:
      The evaluation context.

    • createSimpleEvaluationContext

      public static org.springframework.expression.spel.support.SimpleEvaluationContext createSimpleEvaluationContext​(@Nullable org.springframework.beans.factory.BeanFactory beanFactory)
      Obtains the context from the beanFactory if not null; emits a warning if the beanFactory is null.
      Parameters:
      beanFactory - The bean factory.
      Returns:
      The evaluation context.
      Since:
      4.3.15

    • expressionToFile

      public static java.io.File expressionToFile​(org.springframework.expression.Expression expression, org.springframework.expression.EvaluationContext evaluationContext, @Nullable org.springframework.messaging.Message<?> message, java.lang.String propertyName)
      Evaluate an expression and return a File object; the expression can evaluate to a String or File.
      Parameters:
      expression - the expression.
      evaluationContext - the evaluation context.
      message - the message (if available).
      propertyName - the property name the expression is evaluated for.
      Returns:
      the File.
      Since:
      5.0

    • intExpression

      public static org.springframework.expression.Expression intExpression​(java.lang.String expression)
      Return a ValueExpression for a simple literal, otherwise a SpelExpression.
      Parameters:
      expression - the expression string.
      Returns:
      the expression.
      Since:
      5.0

    • longExpression

      public static org.springframework.expression.Expression longExpression​(java.lang.String expression)
      Return a ValueExpression for a simple literal, otherwise a SpelExpression.
      Parameters:
      expression - the expression string.
      Returns:
      the expression.
      Since:
      5.0