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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.envers.internal.entities.mapper.id;
import java.util.List;
import java.util.Map;
import org.hibernate.envers.internal.tools.query.Parameters;
import org.hibernate.service.ServiceRegistry;
/**
* @author Adam Warski (adam at warski dot org)
* @author Chris Cranford
*/
public interface IdMapper {
ServiceRegistry getServiceRegistry();
void mapToMapFromId(Map data, Object obj);
void mapToMapFromEntity(Map data, Object obj);
/**
* @param obj Object to map to.
* @param data Data to map.
*
* @return True if data was mapped; false otherwise (when the id is {@code null}).
*/
boolean mapToEntityFromMap(Object obj, Map data);
Object mapToIdFromEntity(Object data);
Object mapToIdFromMap(Map data);
/**
* Creates a mapper with all mapped properties prefixed. A mapped property is a property which
* is directly mapped to values (not composite).
*
* @param prefix Prefix to add to mapped properties
*
* @return A copy of the current property mapper, with mapped properties prefixed.
*/
IdMapper prefixMappedProperties(String prefix);
/**
* @param obj Id from which to map.
*
* @return A set parameter data, needed to build a query basing on the given id.
*/
List mapToQueryParametersFromId(Object obj);
/**
* Adds query statements, which contains restrictions, which express the property that the id of the entity
* with alias prefix1, is equal to the id of the entity with alias prefix2 (the entity is the same).
*
* @param parameters Parameters, to which to add the statements.
* @param prefix1 First alias of the entity + prefix to add to the properties.
* @param prefix2 Second alias of the entity + prefix to add to the properties.
*/
void addIdsEqualToQuery(Parameters parameters, String prefix1, String prefix2);
/**
* Adds query statements, which contains restrictions, which express the property that the id of the entity
* with alias prefix1, is equal to the id of the entity with alias prefix2 mapped by the second mapper
* (the second mapper must be for the same entity, but it can have, for example, prefixed properties).
*
* @param parameters Parameters, to which to add the statements.
* @param prefix1 First alias of the entity + prefix to add to the properties.
* @param mapper2 Second mapper for the same entity, which will be used to get properties for the right side
* of the equation.
* @param prefix2 Second alias of the entity + prefix to add to the properties.
*/
void addIdsEqualToQuery(Parameters parameters, String prefix1, IdMapper mapper2, String prefix2);
/**
* Adds query statements, which contains restrictions, which express the property that the id of the entity
* with alias prefix, is equal to the given object.
*
* @param parameters Parameters, to which to add the statements.
* @param id Value of id.
* @param alias the alias to use in the specified parameters (may be null).
* @param prefix Prefix to add to the properties (may be null).
* @param equals Should this query express the "=" relation or the "<>" relation.
*/
void addIdEqualsToQuery(Parameters parameters, Object id, String alias, String prefix, boolean equals);
/**
* Adds query statements, which contains named parameters, which express the property that the id of the entity
* with alias prefix, is equal to the given object. It is the responsibility of the using method to read
* parameter values from the id and specify them on the final query object.
*
* @param parameters Parameters, to which to add the statements.
* @param prefix Prefix to add to the properties (may be null).
* @param equals Should this query express the "=" relation or the "<>" relation.
*/
void addNamedIdEqualsToQuery(Parameters parameters, String prefix, boolean equals);
/**
* Adds query statements, which contains named parameters that express the property that the id of the entity
* with alias prefix is equal to the given object using the specified mapper.
*
* @param parameters Parameters, to which to add the statements.
* @param prefix Prefix to add to the properties (may be null).
* @param mapper The identifier mapper to use
* @param equals Should this query express the "=" relation or the "<>" relation.
*
* @since 5.2.2
*/
void addNamedIdEqualsToQuery(Parameters parameters, String prefix, IdMapper mapper, boolean equals);
}