org.apache.activemq.artemis.selector.filter

## Interface Expression

- All Known Subinterfaces:
    BooleanExpression
  All Known Implementing Classes:
    ArithmeticExpression, BinaryExpression, ComparisonExpression, ConstantExpression, LogicExpression, PropertyExpression, UnaryExpression, XPathExpression, XQueryExpression

      public interface Expression

  Represents an expression
  Version:
    $Revision: 1.2 $

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `Object` | `evaluate(Filterable message)`

- - ### Method Detail

    - #### evaluate

          Object evaluate(Filterable message)
                   throws FilterException

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

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