Package com.yahoo.search.federation.sourceref

Class SearchChainResolver

java.lang.Object

com.yahoo.search.federation.sourceref.SearchChainResolver

public class SearchChainResolver
extends Object

Resolves (source, provider) component specifications to a search chain invocation spec. The provider component specification is given by the entry in the queryMap with key 'source.<source-name>.provider'.

The diagram shows the relationship between source, provider and the result: (source is used to select row, provider is used to select column.) Provider id = null is used for regular search chains.

                   Provider id
                 null
                |----+---+---+---|
                | o  |   |   |   |
                |----+---+---+---|
 Source id      |    | o | o |   |
                |----+---+---+---|
                |    |   |   | o |
                |----+---+---+---|

                    o: SearchChainInvocationSpec
 

Author:

Tony Vaagenes

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SearchChainResolver.Builder

Method Summary

Modifier and Type	Method	Description
SortedSet<Target>	allTopLevelTargets()
SortedSet<Target>	defaultTargets()
SearchChainInvocationSpec	resolve(com.yahoo.component.ComponentSpecification sourceRef, com.yahoo.processing.request.Properties sourceToProviderMap)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

resolve

public SearchChainInvocationSpec resolve(com.yahoo.component.ComponentSpecification sourceRef,
 com.yahoo.processing.request.Properties sourceToProviderMap)
                                  throws UnresolvedSearchChainException

Throws:

UnresolvedSearchChainException

allTopLevelTargets

public SortedSet<Target> allTopLevelTargets()

defaultTargets

public SortedSet<Target> defaultTargets()