oracle.odi.domain.xrefs.expression.contexts
Interface IExpressionContext

All Known Implementing Classes:

CachingExpressionContextDecorator, CompoundExpressionContext, GlobalExpressionContext, OdiDataStoreExpressionContext, OdiProjectExpressionContext, SourceDataStoreExpressionContext

public interface IExpressionContext

Interface to be implemented by objects that are contexts of Expression.

Such context are able to provide SnpsExpressionTags for a given SnpsLanguage. An expression context is a context containing expression tags to be recognized during the parsing of an expression. Such tags should correspond to ODI objects (IOdiEntity for instance) that are in the scope of the expression, so within the scope of the expression holder.

That interface define a single method getSnpsExpressionTags(SnpsLanguage) that has to return expression tags according the context's behavior and scope.

This interface is mainly used by ExpressionStringParser in order to create Expression accordingly.

Since:

11.1.1.3.0

See Also:

SnpsLanguage, SnpsExpressionTag, ExpressionStringParser

Method Summary

com.sunopsis.language.parser.SnpsExpressionTag[]

getSnpsExpressionTags(com.sunopsis.language.SnpsLanguage pSnpsLanguage) Obtains the expression tags relative to this context.

Method Detail

getSnpsExpressionTags

com.sunopsis.language.parser.SnpsExpressionTag[] getSnpsExpressionTags(com.sunopsis.language.SnpsLanguage pSnpsLanguage)
                                                                       throws IllegalExpressionObjectException

Obtains the expression tags relative to this context.

Parameters:

pSnpsLanguage - the language that will be used when manipulating the expression tags (i.e. when building the Expression)

Returns:

an array of expression tags

Throws:

IllegalExpressionObjectException - if the context contains illegal objects for expression