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## org.codehaus.activemq.filter
Interface Expression

All Known Subinterfaces:
  BooleanExpression

All Known Implementing Classes:
  BinaryExpression, ComparisonExpression, ComparisonExpression.LikeExpression, ConstantExpression, ConstantExpression.BooleanConstantExpression, LogicExpression, PropertyExpression, UnaryExpression, UnaryExpression.BooleanUnaryExpression

public interface Expression

Represents an expression

Version:
  $Revision: 1.1 $

Method Summary
`Object` | `evaluate(Message message)`

Method Detail

### evaluate

    public Object evaluate(Message message)
                    throws JMSException

  Returns:
    the value of this expression
  Throws:
    `JMSException`

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