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

Class ToOneSelectionPathHandler

java.lang.Object

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

All Implemented Interfaces:

SelectionPathHandler

public class ToOneSelectionPathHandler
extends Object
implements SelectionPathHandler

SelectionPathHandler for all to-one fields (except binaries). All fields can be queried directly from the database (see processSelection(SelectionRegistry)). In addition the primary key of each path is queried as well, in order to be able to check field-level security. The temporary results can then be simply be mapped to the target array (see processResults(List, List, SelectionRegistry, ResultRowMapper)). Before the values are mapped to the target, the interceptors are invoked so that they can modify the result if necessary.

Constructor Summary

Constructors

Constructor	Description
ToOneSelectionPathHandler(EntityModel rootModel, List<QueryBuilderInterceptor> interceptors)

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)	All to-one fields except binaries are supported.

Methods inherited from class java.lang.Object

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

Constructor Details

ToOneSelectionPathHandler

public ToOneSelectionPathHandler(EntityModel rootModel,
 List<QueryBuilderInterceptor> interceptors)

Method Details

supports

public boolean supports(Path path)

All to-one fields except binaries are supported.

Specified by:

supports in interface SelectionPathHandler

Returns:

true if this instance supports the given path.

select

public void select(Path path)

Specified by:

select in interface SelectionPathHandler

Parameters:

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

processSelection

public void processSelection(SelectionRegistry selectionRegistry)

Description copied from interface: SelectionPathHandler

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

Specified by:

processSelection in interface SelectionPathHandler

processResults

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

Description copied from interface: SelectionPathHandler

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.

Specified by:

processResults in interface SelectionPathHandler

Parameters:

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

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