jooq multiset jsonb 列失败，无法构造 `org.jooq.JSONB` 的实例
jooq multiset jsonb column fails with Cannot construct instance of `org.jooq.JSONB`
我正在亲身体验 jooq 的新多重功能。
有一个产品table，每个产品可以分配可变数量的存储。每个存储可能有一个 storage_coordinate_instance，而 storage_coordinate_instance 有一个列层次结构，它保存存储位置的解析递归表示。 （更新非常少，并且存储的层次结构避免了每次需要存储位置时都解析递归查询）。
一切顺利，直到我尝试将层次结构列添加到多重集。
查询如下：
List<ProductFilterItem> items =
dslContext
.select(
PRODUCT.ID,
PRODUCT.NAME,
PRODUCT.ARTICLE_NUMBER,
PRODUCT.PHYSICAL,
multiset(
select(
PRODUCT_STORAGE.ID,
PRODUCT_STORAGE.PRODUCT_ID,
PRODUCT_STORAGE.STOCK,
PRODUCT_STORAGE.COORDINATE_INSTANCE_ID,
STORAGE_COORDINATE_INSTANCE.HIERARCHY
)
.from(PRODUCT_STORAGE)
.leftOuterJoin(STORAGE_COORDINATE_INSTANCE).on(STORAGE_COORDINATE_INSTANCE.ID.eq(PRODUCT_STORAGE.COORDINATE_INSTANCE_ID))
.where(PRODUCT_STORAGE.PRODUCT_ID.eq(PRODUCT.ID))
).as("storage").convertFrom(r -> r.into(ProductStorageItem.class))
)
.from(PRODUCT)
.where(queryCondition)
.fetchInto(ProductItem.class)
这就是 class 存储项目映射到：
private static class ProductStorageItem {
private final UUID id;
private final UUID productId;
private final Double stock;
private final UUID coordinateInstanceId;
private final JSONB hierarchy;
public ProductStorageItem(UUID id, UUID productId, Double stock, UUID coordinateInstanceId, JSONB hierarchy) {
this.id = id;
this.productId = productId;
this.stock = stock;
this.coordinateInstanceId = coordinateInstanceId;
this.hierarchy = hierarchy;
}
如果当前筛选没有 return 产品分配 storage_coordinate_instance。
，则查询执行没有错误
否则它产生
com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `org.jooq.JSONB` (although at least one Creator exists): cannot deserialize from Object value (no delegate- or property-based Creator)
at [Source: (String)"{"606f4346-292e-4479-a2a1-39bb49e44873":"2","8d86347f-fc31-4f88-92c4-6e4f5fd12626":"2","d2bbbce0-1487-4f87-b458-07c4e8a54065":"2"}"; line: 1, column: 2]
at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1588) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1213) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1415) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:362) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:195) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:322) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4593) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3548) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3516) ~[jackson-databind-2.12.3.jar:2.12.3]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.jooq.impl.Convert$ConvertAll.from(Convert.java:1139) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.Convert.convert0(Convert.java:426) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.Convert.convert(Convert.java:501) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.AbstractDataType.convert(AbstractDataType.java:538) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultDataType.convert(DefaultDataType.java:97) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.ConvertedDataType.convert(ConvertedDataType.java:224) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.Tools.setValue(Tools.java:3068) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultRecordUnmapper$IterableUnmapper.unmap(DefaultRecordUnmapper.java:189) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultRecordUnmapper.unmap(DefaultRecordUnmapper.java:102) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.AbstractRecord.from0(AbstractRecord.java:911) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.AbstractRecord.from(AbstractRecord.java:941) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.JSONReader.lambda$read(JSONReader.java:201) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.RecordDelegate.operate(RecordDelegate.java:143) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.JSONReader.read(JSONReader.java:200) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.JSONReader.read(JSONReader.java:110) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultBinding$DefaultResultBinding.readMultiset(DefaultBinding.java:3829) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultBinding$DefaultResultBinding.get0(DefaultBinding.java:3808) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultBinding$DefaultResultBinding.get0(DefaultBinding.java:3786) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultBinding$AbstractBinding.get(DefaultBinding.java:946) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.CursorImpl$CursorIterator$CursorRecordInitialiser.setValue(CursorImpl.java:1551) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.CursorImpl$CursorIterator$CursorRecordInitialiser.apply(CursorImpl.java:1500) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.CursorImpl$CursorIterator$CursorRecordInitialiser.apply(CursorImpl.java:1459) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.RecordDelegate.operate(RecordDelegate.java:143) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.CursorImpl$CursorIterator.fetchNext(CursorImpl.java:1424) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.CursorImpl$CursorIterator.hasNext(CursorImpl.java:1400) ~[jooq-3.15.3.jar:na]
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:132) ~[na:na]
at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[na:na]
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na]
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578) ~[na:na]
at org.jooq.impl.AbstractCursor.collect(AbstractCursor.java:78) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.ResultQueryTrait.collect(ResultQueryTrait.java:358) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.ResultQueryTrait.fetchInto(ResultQueryTrait.java:1423) ~[jooq-3.15.3.jar:na]
at package.MyProductDao.filterProducts(MyProductDao.java:129) ~[classes/:na]
查询有问题吗？或者这可能是与基于 JSON?
的 postgres 的 jooq 多集仿真有关的问题
Java 11
优客3.15.3
Postgres driver 42.2.24
感谢您的帮助！
亲切的问候，
安德烈亚斯
小编辑：如何根据multiset的大小对结果集进行排序？实际大小，或伪：将至少有一个存储的放在第一位，将 none 放在后面。
jOOQ 3.15.3 中似乎有一个错误试图通过 Jackson 将 JSON 数据映射到 JSON 或 JSONB，而不是在内部通过 jOOQ 自己的序列化程序, 见:
- https://github.com/jOOQ/jOOQ/issues/12508（与杰克逊相关的问题）
- https://github.com/jOOQ/jOOQ/issues/12509（
DefaultConverterProvider 提供这种映射的能力）
该错误将在 3.16.0 和 3.15.4 中修复。作为解决方法，您可以暂时将 JSONB 文档转换为 TEXT。
我正在亲身体验 jooq 的新多重功能。 有一个产品table，每个产品可以分配可变数量的存储。每个存储可能有一个 storage_coordinate_instance，而 storage_coordinate_instance 有一个列层次结构，它保存存储位置的解析递归表示。 （更新非常少，并且存储的层次结构避免了每次需要存储位置时都解析递归查询）。
一切顺利，直到我尝试将层次结构列添加到多重集。
查询如下：
List<ProductFilterItem> items =
dslContext
.select(
PRODUCT.ID,
PRODUCT.NAME,
PRODUCT.ARTICLE_NUMBER,
PRODUCT.PHYSICAL,
multiset(
select(
PRODUCT_STORAGE.ID,
PRODUCT_STORAGE.PRODUCT_ID,
PRODUCT_STORAGE.STOCK,
PRODUCT_STORAGE.COORDINATE_INSTANCE_ID,
STORAGE_COORDINATE_INSTANCE.HIERARCHY
)
.from(PRODUCT_STORAGE)
.leftOuterJoin(STORAGE_COORDINATE_INSTANCE).on(STORAGE_COORDINATE_INSTANCE.ID.eq(PRODUCT_STORAGE.COORDINATE_INSTANCE_ID))
.where(PRODUCT_STORAGE.PRODUCT_ID.eq(PRODUCT.ID))
).as("storage").convertFrom(r -> r.into(ProductStorageItem.class))
)
.from(PRODUCT)
.where(queryCondition)
.fetchInto(ProductItem.class)
这就是 class 存储项目映射到：
private static class ProductStorageItem {
private final UUID id;
private final UUID productId;
private final Double stock;
private final UUID coordinateInstanceId;
private final JSONB hierarchy;
public ProductStorageItem(UUID id, UUID productId, Double stock, UUID coordinateInstanceId, JSONB hierarchy) {
this.id = id;
this.productId = productId;
this.stock = stock;
this.coordinateInstanceId = coordinateInstanceId;
this.hierarchy = hierarchy;
}
如果当前筛选没有 return 产品分配 storage_coordinate_instance。
，则查询执行没有错误否则它产生
com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `org.jooq.JSONB` (although at least one Creator exists): cannot deserialize from Object value (no delegate- or property-based Creator)
at [Source: (String)"{"606f4346-292e-4479-a2a1-39bb49e44873":"2","8d86347f-fc31-4f88-92c4-6e4f5fd12626":"2","d2bbbce0-1487-4f87-b458-07c4e8a54065":"2"}"; line: 1, column: 2]
at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1588) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1213) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1415) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:362) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:195) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:322) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4593) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3548) ~[jackson-databind-2.12.3.jar:2.12.3]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3516) ~[jackson-databind-2.12.3.jar:2.12.3]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.jooq.impl.Convert$ConvertAll.from(Convert.java:1139) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.Convert.convert0(Convert.java:426) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.Convert.convert(Convert.java:501) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.AbstractDataType.convert(AbstractDataType.java:538) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultDataType.convert(DefaultDataType.java:97) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.ConvertedDataType.convert(ConvertedDataType.java:224) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.Tools.setValue(Tools.java:3068) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultRecordUnmapper$IterableUnmapper.unmap(DefaultRecordUnmapper.java:189) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultRecordUnmapper.unmap(DefaultRecordUnmapper.java:102) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.AbstractRecord.from0(AbstractRecord.java:911) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.AbstractRecord.from(AbstractRecord.java:941) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.JSONReader.lambda$read(JSONReader.java:201) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.RecordDelegate.operate(RecordDelegate.java:143) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.JSONReader.read(JSONReader.java:200) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.JSONReader.read(JSONReader.java:110) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultBinding$DefaultResultBinding.readMultiset(DefaultBinding.java:3829) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultBinding$DefaultResultBinding.get0(DefaultBinding.java:3808) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultBinding$DefaultResultBinding.get0(DefaultBinding.java:3786) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.DefaultBinding$AbstractBinding.get(DefaultBinding.java:946) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.CursorImpl$CursorIterator$CursorRecordInitialiser.setValue(CursorImpl.java:1551) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.CursorImpl$CursorIterator$CursorRecordInitialiser.apply(CursorImpl.java:1500) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.CursorImpl$CursorIterator$CursorRecordInitialiser.apply(CursorImpl.java:1459) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.RecordDelegate.operate(RecordDelegate.java:143) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.CursorImpl$CursorIterator.fetchNext(CursorImpl.java:1424) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.CursorImpl$CursorIterator.hasNext(CursorImpl.java:1400) ~[jooq-3.15.3.jar:na]
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:132) ~[na:na]
at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[na:na]
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na]
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578) ~[na:na]
at org.jooq.impl.AbstractCursor.collect(AbstractCursor.java:78) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.ResultQueryTrait.collect(ResultQueryTrait.java:358) ~[jooq-3.15.3.jar:na]
at org.jooq.impl.ResultQueryTrait.fetchInto(ResultQueryTrait.java:1423) ~[jooq-3.15.3.jar:na]
at package.MyProductDao.filterProducts(MyProductDao.java:129) ~[classes/:na]
查询有问题吗？或者这可能是与基于 JSON?
的 postgres 的 jooq 多集仿真有关的问题Java 11 优客3.15.3 Postgres driver 42.2.24
感谢您的帮助！
亲切的问候， 安德烈亚斯
小编辑：如何根据multiset的大小对结果集进行排序？实际大小，或伪：将至少有一个存储的放在第一位，将 none 放在后面。
jOOQ 3.15.3 中似乎有一个错误试图通过 Jackson 将 JSON 数据映射到 JSON 或 JSONB，而不是在内部通过 jOOQ 自己的序列化程序, 见:
- https://github.com/jOOQ/jOOQ/issues/12508（与杰克逊相关的问题）
- https://github.com/jOOQ/jOOQ/issues/12509（
DefaultConverterProvider提供这种映射的能力）
该错误将在 3.16.0 和 3.15.4 中修复。作为解决方法，您可以暂时将 JSONB 文档转换为 TEXT。