Package com.evolveum.midpoint.repo.sql.query2.resolution

Class ItemPathResolver

java.lang.Object

com.evolveum.midpoint.repo.sql.query2.resolution.ItemPathResolver

public class ItemPathResolver
extends Object

Responsible for resolving item paths - i.e. translating them into JPA paths along with creation of necessary joins. Contains also methods that try to find proper specific entity definition when only general one (e.g. RObject) is provided.

Author:

mederly

Constructor Summary

Constructors

Constructor	Description
ItemPathResolver(InterpretationContext interpretationContext)

Method Summary

Modifier and Type	Method	Description
String	addTextInfoJoin(String currentHqlPath)
<T extends JpaDataNodeDefinition> ProperDataSearchResult<T>	findProperDataDefinition(JpaEntityDefinition baseEntityDefinition, ItemPath path, ItemDefinition itemDefinition, Class<T> clazz, PrismContext prismContext)	Finds the proper definition for (possibly abstract) entity.
JpaEntityDefinition	findRestrictedEntityDefinition(JpaEntityDefinition baseEntityDefinition, QName specificTypeName)	Given existing entity definition and a request for narrowing it, tries to find refined definition.
HqlDataInstance	resolveItemPath(ItemPath relativePath, ItemDefinition itemDefinition, HqlDataInstance baseDataInstance, boolean singletonOnly)
HqlDataInstance	resolveItemPath(ItemPath relativePath, ItemDefinition itemDefinition, String currentHqlPath, JpaEntityDefinition baseEntityDefinition, boolean reuseMultivaluedJoins)	Resolves item path by creating a sequence of resolution states and preparing joins that are used to access JPA properties.

Methods inherited from class java.lang.Object

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

Constructor Detail

ItemPathResolver

public ItemPathResolver(InterpretationContext interpretationContext)

Method Detail

resolveItemPath

public HqlDataInstance resolveItemPath(ItemPath relativePath,
                                       ItemDefinition itemDefinition,
                                       String currentHqlPath,
                                       JpaEntityDefinition baseEntityDefinition,
                                       boolean reuseMultivaluedJoins)
                                throws QueryException

Resolves item path by creating a sequence of resolution states and preparing joins that are used to access JPA properties.

Parameters:

itemDefinition - Definition for the (final) item pointed to. Optional - necessary only for extension items.

reuseMultivaluedJoins - Creation of new joins for multivalued properties is forbidden.

Throws:

QueryException

resolveItemPath

public HqlDataInstance resolveItemPath(ItemPath relativePath,
                                       ItemDefinition itemDefinition,
                                       HqlDataInstance baseDataInstance,
                                       boolean singletonOnly)
                                throws QueryException

Throws:

QueryException

addTextInfoJoin

public String addTextInfoJoin(String currentHqlPath)

findProperDataDefinition

public <T extends JpaDataNodeDefinition> ProperDataSearchResult<T> findProperDataDefinition(JpaEntityDefinition baseEntityDefinition,
                                                                                            ItemPath path,
                                                                                            ItemDefinition itemDefinition,
                                                                                            Class<T> clazz,
                                                                                            PrismContext prismContext)
                                                                                     throws QueryException

Finds the proper definition for (possibly abstract) entity. Returns the most abstract entity that can be used. Checks for conflicts, such as user.locality vs org.locality.

Parameters:

path - Path to be found (non-empty!)

itemDefinition - Definition of target property, required/used only for "any" properties

clazz - Kind of definition to be looked for

Returns:

Entity type definition + item definition, or null if nothing was found

Throws:

QueryException

findRestrictedEntityDefinition

public JpaEntityDefinition findRestrictedEntityDefinition(JpaEntityDefinition baseEntityDefinition,
                                                          QName specificTypeName)
                                                   throws QueryException

Given existing entity definition and a request for narrowing it, tries to find refined definition.

Throws:

QueryException