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## Package org.mule.expression

Interface Summary
ExpressionConstants | Constnts for Headers and Attachment processing shared by a number of the Expression evaluators

Class Summary
DefaultExpressionManager | Provides universal access for evaluating expressions embedded in Mule configurations, such as Xml, Java, scripting and annotations.
EndpointInfoExpressionEvaluator | Looks up information about a global endpoint
ExpressionConfig | A simple configuration object for holding the common Expression evaluator configuration.
ExpressionUtils | Used by the different header expression evaluators to read message properties, honuouring scope and return type
FunctionExpressionEvaluator | This property extractor doesn't actually extract a property from the message, instead it allows for certain functions to be called and returns a result.
InboundAttachmentsMap | Creates a wrapper around Mule Message with a MAp facade used for allowing developers to add attachments to an outgoing message in a transformer of component without needing to access the Mule API directly
MapPayloadExpressionEvaluator | If the message payload is a map this extractor will look up the property value in the map
MessageAttachmentExpressionEvaluator | Looks up an attachment with the given name.
MessageAttachmentsExpressionEvaluator | Looks up the attachment(s) on the message using the expression given.
MessageAttachmentsListExpressionEvaluator | Looks up the attachment(s) on the message using the expression given.
MessageExpressionEvaluator | Returns properties on the MuleMessage itself.
MessageHeaderExpressionEvaluator | Looks up the property on the message using the property name given.
MessageHeadersExpressionEvaluator | Looks up the property on the message using the expression given.
MessageHeadersListExpressionEvaluator | Looks up the property on the message using the expression given.
MessagePayloadExpressionEvaluator | Returns the message payload.
MuleContextExpressionEvaluator | This property extractor exposes mule context information as expressions.
MuleExpressionEvaluator | This evaluator provide a powerful expression language for querying mule information at runtime.
OutboundAttachmentsExpressionEvaluator | Creates a Map facade around a `MuleMessage` instance to allow access to outbound attachments from within components and transformers without the these objects needing access to the Mule Message
OutboundAttachmentsMap | Creates a wrapper around Mule Message with a MAp facade used for allowing developers to add attachments to an outgoing message in a transformer of component without needing to access the Mule API directly
OutboundHeadersExpressionEvaluator | Creates a Map facade around a `MuleMessage` instance to allow access to outbound headers from within components and transformers without the these objects needing access to the Mule Message
OutboundHeadersExpressionEvaluator.SendHeadersMap |
RegistryExpressionEvaluator | Looks up information about objects in the Registry
StringExpressionEvaluator | Will process an expression string that can contain other expressions

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