Package ch.tocco.nice2.persist.core.impl.hibernate.query.selection

Interface SelectionPathHandler

All Known Implementing Classes:

AbstractToManyBinaryHandler, AbstractToManySelectionPathHandler, AbstractToOneBinaryHandler, ToManyDetailDocumentHandler, ToManyResourceContentHandler, ToManySelectionPathHandler, ToOneDetailDocumentHandler, ToOneResourceContentHandler, ToOneSelectionPathHandler

public interface SelectionPathHandler

A strategy how to efficiently fetch a Path of a CustomSelection from the database. This is used internally by the CriteriaQueryBuilder.

Method Summary

Modifier and Type	Method	Description
<RT> void	processResults(List<Object[]> queryResults, List<RT> target, SelectionRegistry selectionRegistry, ResultRowMapper<RT> mapper)	This is called after the query was executed.
void	processSelection(SelectionRegistry selectionRegistry)	This is called before the query is executed.
void	select(Path path)
boolean	supports(Path path)

Method Details

supports

boolean supports(Path path)

Returns:

true if this instance supports the given path.

select

void select(Path path)

Parameters:

path - a path that should be selected by this handler.

processSelection

void processSelection(SelectionRegistry selectionRegistry)

This is called before the query is executed. The handler can add all required selection paths to the given SelectionRegistry.

processResults

<RT> void processResults(List<Object[]> queryResults,
 List<RT> target,
 SelectionRegistry selectionRegistry,
 ResultRowMapper<RT> mapper)

This is called after the query was executed. The handler is expected to map the query results to the target array that is returned from the query builder.

Parameters:

queryResults - the query result, contains all paths added during processSelection(SelectionRegistry)

target - the list of arrays that will be returned from the query builder