Package org.springframework.integration.transformer.support

Class ExpressionEvaluatingHeaderValueMessageProcessor<T>

java.lang.Object
org.springframework.integration.transformer.support.AbstractHeaderValueMessageProcessor<T>
org.springframework.integration.transformer.support.ExpressionEvaluatingHeaderValueMessageProcessor<T>
Type Parameters:
T - ther paylaod type.
All Implemented Interfaces:
org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanFactoryAware, MessageProcessor<T>, HeaderValueMessageProcessor<T>
public class ExpressionEvaluatingHeaderValueMessageProcessor<T>
extends AbstractHeaderValueMessageProcessor<T>
implements org.springframework.beans.factory.BeanFactoryAware
Since:
3.0

  • Constructor Summary

    Constructors 
    Constructor Description
    ExpressionEvaluatingHeaderValueMessageProcessor​(java.lang.String expressionString, java.lang.Class<T> expectedType)
    Create a header value processor for the given expression string and the expected type of the expression evaluation result.
    ExpressionEvaluatingHeaderValueMessageProcessor​(org.springframework.expression.Expression expression, java.lang.Class<T> expectedType)
    Create a header value processor for the given Expression and the expected type of the expression evaluation result.

  • Method Summary

    Modifier and Type Method Description
    T processMessage​(org.springframework.messaging.Message<?> message)
    Process the Message and return a value (or null).
    void setBeanFactory​(org.springframework.beans.factory.BeanFactory beanFactory)  

    Methods inherited from class org.springframework.integration.transformer.support.AbstractHeaderValueMessageProcessor

    isOverwrite, setOverwrite

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • ExpressionEvaluatingHeaderValueMessageProcessor

      public ExpressionEvaluatingHeaderValueMessageProcessor​(org.springframework.expression.Expression expression, java.lang.Class<T> expectedType)
      Create a header value processor for the given Expression and the expected type of the expression evaluation result. The expectedType may be null if unknown.
      Parameters:
      expression - the Expression to evaluate.
      expectedType - the type for return value of expression evaluation result.

    • ExpressionEvaluatingHeaderValueMessageProcessor

      public ExpressionEvaluatingHeaderValueMessageProcessor​(java.lang.String expressionString, java.lang.Class<T> expectedType)
      Create a header value processor for the given expression string and the expected type of the expression evaluation result. The expectedType may be null if unknown.
      Parameters:
      expressionString - the String expression presentation to evaluate.
      expectedType - the type for return value of expression evaluation result.

  • Method Details

    • setBeanFactory

      public void setBeanFactory​(org.springframework.beans.factory.BeanFactory beanFactory)
      Specified by:
      setBeanFactory in interface org.springframework.beans.factory.BeanFactoryAware

    • processMessage

      public T processMessage​(org.springframework.messaging.Message<?> message)
      Description copied from interface: MessageProcessor
      Process the Message and return a value (or null).
      Specified by:
      processMessage in interface MessageProcessor<T>
      Parameters:
      message - The message to process.
      Returns:
      The result.