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schauderschauder
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Partial implementation.
Non trivial aggregates work with single value wrapped PK. Simple aggregates work with composite id for insert, update, delete and exists. See #574
1 parent 9fd001b commit afc72ec

23 files changed

+981
-113
lines changed

‎spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/JdbcIdentifierBuilder.java‎

Lines changed: 22 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,12 @@
1515
*/
1616
package org.springframework.data.jdbc.core.convert;
1717

18+
import org.springframework.beans.factory.config.ConstructorArgumentValues;
19+
import org.springframework.data.mapping.PersistentPropertyAccessor;
20+
import org.springframework.data.mapping.SimplePropertyHandler;
1821
import org.springframework.data.relational.core.mapping.AggregatePath;
22+
import org.springframework.data.relational.core.mapping.RelationalPersistentEntity;
23+
import org.springframework.data.relational.core.mapping.RelationalPersistentProperty;
1924
import org.springframework.lang.Nullable;
2025
import org.springframework.util.Assert;
2126

@@ -42,10 +47,26 @@ public static JdbcIdentifierBuilder empty() {
4247
*/
4348
public static JdbcIdentifierBuilder forBackReferences(JdbcConverter converter, AggregatePath path, Object value) {
4449

50+
RelationalPersistentProperty idProperty = path.getIdDefiningParentPath().getRequiredIdProperty();
51+
52+
if (value != null && idProperty.isEntity() && idProperty.isEmbedded()) {
53+
// TODO: Fix for more than one property
54+
RelationalPersistentEntity<?> propertyType = converter.getMappingContext().getRequiredPersistentEntity(idProperty.getType());
55+
PersistentPropertyAccessor<Object> propertyAccessor = propertyType.getPropertyAccessor(value);
56+
Object[] bucket = new Object[1];
57+
propertyType.doWithProperties((SimplePropertyHandler) p -> {
58+
if (bucket[0] != null) {
59+
throw new IllegalStateException("Can't handle embededs with more than one property");
60+
}
61+
bucket[0] = propertyAccessor.getProperty(p);
62+
});
63+
value = bucket[0];
64+
}
65+
4566
Identifier identifier = Identifier.of( //
4667
path.getTableInfo().reverseColumnInfo().name(), //
4768
value, //
48-
converter.getColumnType(path.getIdDefiningParentPath().getRequiredIdProperty()) //
69+
converter.getColumnType(idProperty) //
4970
);
5071

5172
return new JdbcIdentifierBuilder(identifier);

‎spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/MappingJdbcConverter.java‎

Lines changed: 21 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -20,6 +20,7 @@
2020
import java.sql.SQLException;
2121
import java.sql.SQLType;
2222
import java.util.Iterator;
23+
import java.util.List;
2324
import java.util.Map;
2425
import java.util.Optional;
2526
import java.util.function.Function;
@@ -80,7 +81,7 @@ public class MappingJdbcConverter extends MappingRelationalConverter implements
8081
* {@link #MappingJdbcConverter(RelationalMappingContext, RelationResolver, CustomConversions, JdbcTypeFactory)}
8182
* (MappingContext, RelationResolver, JdbcTypeFactory)} to convert arrays and large objects into JDBC-specific types.
8283
*
83-
* @param context must not be {@literal null}.
84+
* @param context must not be {@literal null}.
8485
* @param relationResolver used to fetch additional relations from the database. Must not be {@literal null}.
8586
*/
8687
public MappingJdbcConverter(RelationalMappingContext context, RelationResolver relationResolver) {
@@ -98,12 +99,12 @@ public MappingJdbcConverter(RelationalMappingContext context, RelationResolver r
9899
/**
99100
* Creates a new {@link MappingJdbcConverter} given {@link MappingContext}.
100101
*
101-
* @param context must not be {@literal null}.
102+
* @param context must not be {@literal null}.
102103
* @param relationResolver used to fetch additional relations from the database. Must not be {@literal null}.
103-
* @param typeFactory must not be {@literal null}
104+
* @param typeFactory must not be {@literal null}
104105
*/
105106
public MappingJdbcConverter(RelationalMappingContext context, RelationResolver relationResolver,
106-
CustomConversions conversions, JdbcTypeFactory typeFactory) {
107+
CustomConversions conversions, JdbcTypeFactory typeFactory) {
107108

108109
super(context, conversions);
109110

@@ -285,7 +286,7 @@ public <R> R readAndResolve(TypeInformation<R> type, RowDocument source, Identif
285286

286287
@Override
287288
protected RelationalPropertyValueProvider newValueProvider(RowDocumentAccessor documentAccessor,
288-
ValueExpressionEvaluator evaluator, ConversionContext context) {
289+
ValueExpressionEvaluator evaluator, ConversionContext context) {
289290

290291
if (context instanceof ResolvingConversionContext rcc) {
291292

@@ -314,7 +315,7 @@ class ResolvingRelationalPropertyValueProvider implements RelationalPropertyValu
314315
private final Identifier identifier;
315316

316317
private ResolvingRelationalPropertyValueProvider(AggregatePathValueProvider delegate, RowDocumentAccessor accessor,
317-
ResolvingConversionContext context, Identifier identifier) {
318+
ResolvingConversionContext context, Identifier identifier) {
318319

319320
AggregatePath path = context.aggregatePath();
320321

@@ -323,15 +324,15 @@ private ResolvingRelationalPropertyValueProvider(AggregatePathValueProvider dele
323324
this.context = context;
324325
this.identifier = path.isEntity()
325326
? potentiallyAppendIdentifier(identifier, path.getRequiredLeafEntity(),
326-
property -> delegate.getValue(path.append(property)))
327+
property -> delegate.getValue(path.append(property)))
327328
: identifier;
328329
}
329330

330331
/**
331332
* Conditionally append the identifier if the entity has an identifier property.
332333
*/
333334
static Identifier potentiallyAppendIdentifier(Identifier base, RelationalPersistentEntity<?> entity,
334-
Function<RelationalPersistentProperty, Object> getter) {
335+
Function<RelationalPersistentProperty, Object> getter) {
335336

336337
if (entity.hasIdProperty()) {
337338

@@ -368,9 +369,16 @@ public <T> T getPropertyValue(RelationalPersistentProperty property) {
368369
// references and possibly keys, that form an id
369370
if (idDefiningParentPath.hasIdProperty()) {
370371

371-
RelationalPersistentProperty identifier = idDefiningParentPath.getRequiredIdProperty();
372-
AggregatePath idPath = idDefiningParentPath.append(identifier);
373-
Object value = delegate.getValue(idPath);
372+
List<AggregatePath> idPaths = getMappingContext().getIdPaths(idDefiningParentPath.getRequiredLeafEntity());
373+
RelationalPersistentProperty identifier = null;
374+
Object value = null;
375+
for (AggregatePath idPath : idPaths) {
376+
377+
// TODO this hack only works for single values.
378+
379+
identifier = idPath.getRequiredLeafProperty();
380+
value = delegate.getValue(idDefiningParentPath.append(idPath));
381+
}
374382

375383
Assert.state(value != null, "Identifier value must not be null at this point");
376384

@@ -460,7 +468,7 @@ public RelationalPropertyValueProvider withContext(ConversionContext context) {
460468

461469
return context == this.context ? this
462470
: new ResolvingRelationalPropertyValueProvider(delegate.withContext(context), accessor,
463-
(ResolvingConversionContext) context, identifier);
471+
(ResolvingConversionContext) context, identifier);
464472
}
465473
}
466474

@@ -472,7 +480,7 @@ public RelationalPropertyValueProvider withContext(ConversionContext context) {
472480
* @param identifier
473481
*/
474482
private record ResolvingConversionContext(ConversionContext delegate, AggregatePath aggregatePath,
475-
Identifier identifier) implements ConversionContext {
483+
Identifier identifier) implements ConversionContext {
476484

477485
@Override
478486
public <S> S convert(Object source, TypeInformation<? extends S> typeHint) {

‎spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/SqlGenerator.java‎

Lines changed: 54 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -15,6 +15,7 @@
1515
*/
1616
package org.springframework.data.jdbc.core.convert;
1717

18+
import java.time.LocalTime;
1819
import java.util.*;
1920
import java.util.function.Function;
2021
import java.util.stream.Collectors;
@@ -37,6 +38,7 @@
3738
import org.springframework.data.relational.core.sql.render.SqlRenderer;
3839
import org.springframework.data.util.Lazy;
3940
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
41+
import org.springframework.lang.NonNull;
4042
import org.springframework.lang.Nullable;
4143
import org.springframework.util.Assert;
4244

@@ -451,7 +453,7 @@ String createDeleteAllSql(@Nullable PersistentPropertyPath<RelationalPersistentP
451453
*/
452454
String createDeleteByPath(PersistentPropertyPath<RelationalPersistentProperty> path) {
453455
return createDeleteByPathAndCriteria(mappingContext.getAggregatePath(path),
454-
filterColumn -> filterColumn.isEqualTo(getBindMarker(ROOT_ID_PARAMETER)));
456+
filterColumn -> filterColumn.isEqualTo(getBindMarker(entity.getIdColumn())));
455457
}
456458

457459
/**
@@ -469,10 +471,27 @@ String createDeleteInByPath(PersistentPropertyPath<RelationalPersistentProperty>
469471

470472
private String createFindOneSql() {
471473

472-
Select select = selectBuilder().where(getIdColumn().isEqualTo(getBindMarker(ID_SQL_PARAMETER))) //
473-
.build();
474+
SelectBuilder.SelectWhereAndOr select = null;
474475

475-
return render(select);
476+
return render(selectBuilder().where(singleIdWhereCondition()).build());
477+
}
478+
479+
private Condition singleIdWhereCondition() {
480+
481+
Condition aggregate = null;
482+
for (Column column : getIdColumns()) {
483+
Comparison condition = column.isEqualTo(getBindMarker(column.getName()));
484+
485+
if (aggregate == null) {
486+
aggregate = condition;
487+
} else {
488+
aggregate = aggregate.and(condition);
489+
}
490+
}
491+
492+
Assert.state(aggregate != null, "We need at least one id column");
493+
494+
return aggregate;
476495
}
477496

478497
private String createAcquireLockById(LockMode lockMode) {
@@ -632,19 +651,26 @@ Join getJoin(AggregatePath path) {
632651

633652
private String createFindAllInListSql() {
634653

635-
Select select = selectBuilder().where(getIdColumn().in(getBindMarker(IDS_SQL_PARAMETER))).build();
654+
In condition = multiIdWhereClause();
655+
Select select = selectBuilder().where(condition).build();
636656

637657
return render(select);
638658
}
639659

640-
private String createExistsSql() {
660+
private In multiIdWhereClause() {
641661

662+
List<Column> idColumns = getIdColumns();
663+
TupleExpression tuple = TupleExpression.create(idColumns);
664+
return Conditions.in(tuple, getBindMarker(IDS_SQL_PARAMETER));
665+
}
666+
667+
private String createExistsSql() {
642668
Table table = getTable();
643669

644670
Select select = StatementBuilder //
645671
.select(Functions.count(getIdColumn())) //
646672
.from(table) //
647-
.where(getIdColumn().isEqualTo(getBindMarker(ID_SQL_PARAMETER))) //
673+
.where(singleIdWhereCondition()) //
648674
.build();
649675

650676
return render(select);
@@ -715,7 +741,7 @@ private UpdateBuilder.UpdateWhereAndOr createBaseUpdate() {
715741
return Update.builder() //
716742
.table(table) //
717743
.set(assignments) //
718-
.where(getIdColumn().isEqualTo(getBindMarker(entity.getIdColumn())));
744+
.where(singleIdWhereCondition());
719745
}
720746

721747
private String createDeleteByIdSql() {
@@ -738,13 +764,13 @@ private String createDeleteByIdAndVersionSql() {
738764
private DeleteBuilder.DeleteWhereAndOr createBaseDeleteById(Table table) {
739765

740766
return Delete.builder().from(table) //
741-
.where(getIdColumn().isEqualTo(getBindMarker(ID_SQL_PARAMETER)));
767+
.where(singleIdWhereCondition());
742768
}
743769

744770
private DeleteBuilder.DeleteWhereAndOr createBaseDeleteByIdIn(Table table) {
745771

746772
return Delete.builder().from(table) //
747-
.where(getIdColumn().in(getBindMarker(IDS_SQL_PARAMETER)));
773+
.where(multiIdWhereClause());
748774
}
749775

750776
private String createDeleteByPathAndCriteria(AggregatePath path, Function<Column, Condition> rootCondition) {
@@ -804,7 +830,24 @@ private Table getTable() {
804830
}
805831

806832
private Column getIdColumn() {
807-
return sqlContext.getIdColumn();
833+
834+
List<AggregatePath> idPaths = mappingContext.getIdPaths(entity);
835+
836+
AggregatePath idAggregatePath = idPaths.get(0);// TODO: hack for single column
837+
838+
return sqlContext.getColumn(idAggregatePath);
839+
}
840+
841+
private List<Column> getIdColumns() {
842+
843+
List<AggregatePath> idPaths = mappingContext.getIdPaths(entity);
844+
845+
List<Column> result = new ArrayList<>(idPaths.size());
846+
847+
for (AggregatePath idPath : idPaths) {
848+
result.add(sqlContext.getColumn(idPath));
849+
}
850+
return result;
808851
}
809852

810853
private Column getVersionColumn() {

‎spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/SqlParametersFactory.java‎

Lines changed: 69 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -25,7 +25,9 @@
2525
import org.springframework.data.jdbc.support.JdbcUtil;
2626
import org.springframework.data.mapping.PersistentProperty;
2727
import org.springframework.data.mapping.PersistentPropertyAccessor;
28+
import org.springframework.data.mapping.PersistentPropertyPathAccessor;
2829
import org.springframework.data.relational.core.conversion.IdValueSource;
30+
import org.springframework.data.relational.core.mapping.AggregatePath;
2931
import org.springframework.data.relational.core.mapping.RelationalMappingContext;
3032
import org.springframework.data.relational.core.mapping.RelationalPersistentEntity;
3133
import org.springframework.data.relational.core.mapping.RelationalPersistentProperty;
@@ -78,9 +80,13 @@ <T> SqlIdentifierParameterSource forInsert(T instance, Class<T> domainType, Iden
7880

7981
if (IdValueSource.PROVIDED.equals(idValueSource)) {
8082

81-
RelationalPersistentProperty idProperty = persistentEntity.getRequiredIdProperty();
82-
Object idValue = persistentEntity.getIdentifierAccessor(instance).getRequiredIdentifier();
83-
addConvertedPropertyValue(parameterSource, idProperty, idValue, idProperty.getColumnName());
83+
PersistentPropertyPathAccessor<T> propertyPathAccessor = persistentEntity.getPropertyPathAccessor(instance);
84+
for (AggregatePath idPath : context.getIdPaths(persistentEntity)) {
85+
86+
Object idValue = propertyPathAccessor.getProperty(idPath.getRequiredPersistentPropertyPath());
87+
RelationalPersistentProperty idProperty = idPath.getRequiredLeafProperty();
88+
addConvertedPropertyValue(parameterSource, idProperty, idValue, idProperty.getColumnName());
89+
}
8490
}
8591
return parameterSource;
8692
}
@@ -112,12 +118,38 @@ <T> SqlIdentifierParameterSource forQueryById(Object id, Class<T> domainType, Sq
112118

113119
SqlIdentifierParameterSource parameterSource = new SqlIdentifierParameterSource();
114120

115-
addConvertedPropertyValue( //
116-
parameterSource, //
117-
getRequiredPersistentEntity(domainType).getRequiredIdProperty(), //
118-
id, //
119-
name //
120-
);
121+
RelationalPersistentEntity<T> entity = getRequiredPersistentEntity(domainType);
122+
123+
RelationalPersistentProperty singleIdProperty = entity.getRequiredIdProperty();
124+
125+
if (singleIdProperty.isEntity()) {
126+
127+
RelationalPersistentEntity<?> complexId = context.getPersistentEntity(singleIdProperty);
128+
PersistentPropertyPathAccessor<Object> accessor = complexId.getPropertyPathAccessor(id);
129+
130+
List<AggregatePath> idPaths = context.getIdPaths(entity);
131+
132+
for (AggregatePath idPath : idPaths) {
133+
AggregatePath idElementPath = idPath.getTail();
134+
Object idValue = accessor.getProperty(idElementPath.getRequiredPersistentPropertyPath());
135+
136+
addConvertedPropertyValue( //
137+
parameterSource, //
138+
idElementPath.getRequiredLeafProperty(), //
139+
idValue, //
140+
idElementPath.getColumnInfo().name() //
141+
);
142+
}
143+
144+
} else {
145+
146+
addConvertedPropertyValue( //
147+
parameterSource, //
148+
singleIdProperty, //
149+
id, //
150+
singleIdProperty.getColumnName() //
151+
);
152+
}
121153
return parameterSource;
122154
}
123155

@@ -133,9 +165,35 @@ <T> SqlIdentifierParameterSource forQueryByIds(Iterable<?> ids, Class<T> domainT
133165

134166
SqlIdentifierParameterSource parameterSource = new SqlIdentifierParameterSource();
135167

136-
addConvertedPropertyValuesAsList(parameterSource, getRequiredPersistentEntity(domainType).getRequiredIdProperty(),
137-
ids);
168+
RelationalPersistentEntity<?> entity = context.getPersistentEntity(domainType);
169+
RelationalPersistentProperty singleIdProperty = entity.getRequiredIdProperty();
170+
171+
if (singleIdProperty.isEntity()) {
172+
173+
RelationalPersistentEntity<?> complexId = context.getPersistentEntity(singleIdProperty);
174+
List<AggregatePath> idPaths = context.getIdPaths(entity);
175+
176+
List<Object[]> parameterValues = new ArrayList<>();
138177

178+
for (Object id : ids) {
179+
180+
PersistentPropertyPathAccessor<Object> accessor = complexId.getPropertyPathAccessor(id);
181+
182+
Object[] tuple = new Object[idPaths.size()];
183+
int index = 0;
184+
for (AggregatePath idPath : idPaths) {
185+
AggregatePath idElementPath = idPath.getTail();
186+
tuple[index] = accessor.getProperty(idElementPath.getRequiredPersistentPropertyPath());
187+
index++;
188+
}
189+
parameterValues.add(tuple);
190+
}
191+
192+
parameterSource.addValue(SqlGenerator.IDS_SQL_PARAMETER, parameterValues);
193+
} else {
194+
addConvertedPropertyValuesAsList(parameterSource, getRequiredPersistentEntity(domainType).getRequiredIdProperty(),
195+
ids);
196+
}
139197
return parameterSource;
140198
}
141199

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