StringExpressionEvaluator (Mule ESB 2.2.1 API)
Keywords: org.mule.expression.StringExpressionEvaluator class

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## org.mule.expression
Class StringExpressionEvaluator

    java.lang.Object
      org.mule.expression.StringExpressionEvaluator

All Implemented Interfaces:
  MuleContextAware, ExpressionEvaluator, NamedObject

    public class StringExpressionEvaluator

extends Object
implements ExpressionEvaluator, MuleContextAware

Will process an expression string that can contain other expressions

Field Summary
`static String` | `NAME`

Constructor Summary
`StringExpressionEvaluator()`

Method Summary
`Object` | `evaluate(String expression, MuleMessage message)` Extracts a single property from the message
`String` | `getName()` Gts the name of the object
`void` | `setMuleContext(MuleContext context)`
`void` | `setName(String name)` Sets the name of the object

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### NAME

    public static final String NAME

See Also:
  Constant Field Values

Constructor Detail

### StringExpressionEvaluator

    public StringExpressionEvaluator()

Method Detail

### setMuleContext

    public void setMuleContext(MuleContext context)

  Specified by:
    `setMuleContext` in interface `MuleContextAware`

### evaluate

    public Object evaluate(String expression,
                           MuleMessage message)

  Description copied from interface: `ExpressionEvaluator`
  Extracts a single property from the message

  Specified by:
    `evaluate` in interface `ExpressionEvaluator`
  Parameters:
    `expression` - the property expression or expression
    `message` - the message to extract from
  Returns:
    the result of the extraction or null if the property was not found

### getName

    public String getName()

  Gts the name of the object

  Specified by:
    `getName` in interface `NamedObject`
  Returns:
    the name of the object

### setName

    public void setName(String name)

  Sets the name of the object

  Specified by:
    `setName` in interface `NamedObject`
  Parameters:
    `name` - the name of the object

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