com.sdl.context.api.engine

Interface ContextEngine<A extends ContextMap<? extends Aspect>>

Type Parameters:

A - ContextMap type

All Known Implementing Classes:

ODataContextEngine

public interface ContextEngine<A extends ContextMap<? extends Aspect>>

The context engine responsible for resolving context from evidence.

Method Summary

Modifier and Type	Method and Description
Object	evaluateExpression(String expression, ContextPropertyType type) Evaluate passed expression for the specified type using evidence.
ContextVocabulary	getVocabulary() Get the vocabulary being used by the engine.
A	resolve(Evidence evidence) Resolves a context map based on the provided evidence.

Method Detail

resolve

A resolve(Evidence evidence)
   throws ResolverException

Resolves a context map based on the provided evidence.

Parameters:

evidence - the provided evidence

Returns:

the resolved context map

Throws:

ResolverException

getVocabulary

ContextVocabulary getVocabulary()

Get the vocabulary being used by the engine.

Returns:

the vocabulary

evaluateExpression

Object evaluateExpression(String expression,
                          ContextPropertyType type)

Evaluate passed expression for the specified type using evidence.

Parameters:

expression - Expression to be evaluated.

type - Context property type.

Returns:

Result of evaluation depending on type expected.