public class BlendingSearcher extends Searcher
Modifier and Type | Class and Description |
---|---|
private class |
BlendingSearcher.BasicMerger |
private class |
BlendingSearcher.DocumentMerger |
private class |
BlendingSearcher.UniqueMerger |
Modifier and Type | Field and Description |
---|---|
static String |
BLENDING |
private String |
documentId |
Constructor and Description |
---|
BlendingSearcher(com.yahoo.component.ComponentId id,
com.yahoo.container.QrSearchersConfig cfg) |
BlendingSearcher(String blendingDocumentId)
Only for legacy tests.
|
Modifier and Type | Method and Description |
---|---|
protected Result |
blendResults(Result result,
Query q,
int offset,
int hits,
Execution execution)
Produce a single blended result list from a group of hitgroups.
|
private Result |
blendResultsDirectly(Result result,
Query q,
int offset,
int hits,
List<HitGroup> groups,
Execution execution) |
private Result |
blendResultsUniquely(Result result,
Query q,
int offset,
int hits,
List<HitGroup> groups,
Execution execution) |
void |
fill(Result result,
String summaryClass,
Execution execution)
Fills this result by forwarding to the right chained searchers
|
Result |
search(Query query,
Execution execution)
Override this to implement your searcher.
|
private Result |
sortAndTrimResults(Result result,
Query q,
int offset,
int hits,
Execution execution) |
ensureFilled, getLogger, process, toString
getAnnotatedDependencies, getDefaultAnnotatedDependencies, getDependencies, initDependencies
public static final String BLENDING
private final String documentId
@Inject public BlendingSearcher(com.yahoo.component.ComponentId id, com.yahoo.container.QrSearchersConfig cfg)
public BlendingSearcher(String blendingDocumentId)
public Result search(Query query, Execution execution)
Searcher
Searcher implementation subclasses will, depending on their type of logic, do one of the following:
Hits come in two kinds - concrete hits are actual content of the kind requested by the user, meta hits are hits which provides information about the collection of hits, on the query, the service and so on.
The query specifies a window into a larger result list that must be returned from the searcher through hits and offset; Searchers which returns list of hits in the top level in the result must return at least hits number of hits (or if impossible; all that are available), starting at the given offset. In addition, searchers are allowed to return any number of meta hits (although this number is expected to be low). For hits contained in nested hit groups, the concept of a window defined by hits and offset is not well defined and does not apply.
Error handling in searchers:
public void fill(Result result, String summaryClass, Execution execution)
protected Result blendResults(Result result, Query q, int offset, int hits, Execution execution)
private Result sortAndTrimResults(Result result, Query q, int offset, int hits, Execution execution)
private Result blendResultsDirectly(Result result, Query q, int offset, int hits, List<HitGroup> groups, Execution execution)
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