com.cafesoft.cams.attr
Interface Evaluatable

All Known Subinterfaces:

AttributeDesignator, AttributeValue

All Known Implementing Classes:

AbstractAttributeValue, BagAttributeValue, BooleanAttributeValue, StandardAttributeDesignator, StringAttributeValue

public interface Evaluatable

Evaluateable defines a generic interface that is implemented by all objects that can be evaluated to an AttributeValue or a bag of AttributeValues.

Method Summary

EvaluationResult	evaluate(EvaluationContext evalContext) Evaluates the object using the given context, and either returns an error or a resulting value.
boolean	evaluatesToBag() Indicates whether evaluation will return a bag or a single value.
URI	getType() Get the type of this object.

Method Detail

evaluate

EvaluationResult evaluate(EvaluationContext evalContext)

Evaluates the object using the given context, and either returns an error or a resulting value.

Parameters:

evalContext - the representation of the request

Returns:

the evaluation result

getType

URI getType()

Get the type of this object. This may be the data type of an Attribute or the return type of an AttributeDesignator, etc.

Returns:

the type of data represented by this object

evaluatesToBag

boolean evaluatesToBag()

Indicates whether evaluation will return a bag or a single value.

Returns:

true if evaluation will return a bag, false otherwise