Package cz.encircled.joiner.query.join

Interface JoinGraphRegistry

All Known Implementing Classes:

DefaultJoinGraphRegistry

public interface JoinGraphRegistry

JoinGraph allows to predefine a set of joins for a specific class that can be added to a query using JoinerQuery.joinGraphs(String...)

Author:

Vlad on 15-Aug-16.

Method Summary

Modifier and Type	Method	Description
Map<Object,List<JoinDescription>>	getAllJoinGraphs(Class<?> clazz)
List<JoinDescription>	getJoinGraph(Class<?> clazz, Object name)
void	registerJoinGraph(Object graphName, Collection<JoinDescription> joins, Class<?>... rootClasses)	Adds new join graph to the registry.
void	registerOrReplaceJoinGraph(Object graphName, Collection<JoinDescription> joins, Class<?>... rootClasses)	Adds new join graph to the registry or replace an existing one.
void	replaceJoinGraph(Object graphName, Collection<JoinDescription> joins, Class<?>... rootClasses)	Replace an existing join graph with a new one

Method Detail

registerJoinGraph

void registerJoinGraph(Object graphName,
                       Collection<JoinDescription> joins,
                       Class<?>... rootClasses)

Adds new join graph to the registry.

Parameters:

graphName - graph unique name. Generally, any object may be used as a name, it should have correct hashCode method. String or enum is recommended.

joins - associated joins

rootClasses - target class for a new join graph

replaceJoinGraph

void replaceJoinGraph(Object graphName,
                      Collection<JoinDescription> joins,
                      Class<?>... rootClasses)

Replace an existing join graph with a new one

Parameters:

graphName - graph unique name. Generally, any object may be used as a name, it should have correct hashCode method. String or enum is recommended.

joins - associated joins

rootClasses - target class for a new join graph

registerOrReplaceJoinGraph

void registerOrReplaceJoinGraph(Object graphName,
                                Collection<JoinDescription> joins,
                                Class<?>... rootClasses)

Adds new join graph to the registry or replace an existing one.

Parameters:

graphName - graph unique name. Generally, any object may be used as a name, it should have correct hashCode method. String or enum is recommended.

joins - associated joins

rootClasses - target class for a new join graph

getJoinGraph

List<JoinDescription> getJoinGraph(Class<?> clazz,
                                   Object name)

Parameters:

clazz - target class

name - join graph name

Returns:

collection of registered join graphs

getAllJoinGraphs

Map<Object,List<JoinDescription>> getAllJoinGraphs(Class<?> clazz)

Parameters:

clazz - target class

Returns:

map of all registered join graphs