blocks|key|1724347|text|您在这里询问的内容称为元组语法。Hibernate支持它，但不幸的是许多数据库不支持它……|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1724348|http://docs.jboss.org/hibernate/core/3.3/reference/en/html/queryhql.html#queryhql-tuple|offset|length|1724349|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|2F|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

What you are asking here is known as the tuple syntax. It is supported by Hibernate but unfortunately many databases do no support it ...

<a href="http://docs.jboss.org/hibernate/core/3.3/reference/en/html/queryhql.html#queryhql-tuple" rel="nofollow">http://docs.jboss.org/hibernate/core/3.3/reference/en/html/queryhql.html#queryhql-tuple</a>

blocks|key|5558032|text|在这里写下我是如何实现的。基本上，我们需要从需要查询的一组列中创建一个Hibernate组件(read+@Embeddable+object)，并将其嵌入到主实体中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5558033|列组可以按如下方式组合：|5558034|@Embeddable
public+class+CompositeColumns{
++private+String+col1;
++private+String+col2;

++//Empty+constructor+is+required+by+Hibernate+for+instantiation
++public+CompositeColumns(){
++}

++public+CompositeColumns(String+col1,+String+col2){
++++++++++++this.col1+=+col1;
++++++++++++this.col2+=+col2;
++++++}

++@Column(name="COL1")
++public+String+getCol1(){
++}
++...
++...+
++//Rest+of+getters+and+setters
}|code-block|syntax|javascript|5558035|5558036|将上述代码嵌入到您的主实体类中，如下所示：|5558037|@Entity
public+class+MyEntity{
+@Id
+private+Integer+id;
+private+String+col3;
+private+String+col4
+@Embedded
+private+CompositeColumns+pairedCol1Col2;
+...
+...
+//Getters+Setters

}|5558038|5558039|然后，查询将如下所示：|5558040|List<CompositeColumns>+cols+=+//get+a+list+of+CompositeColumns+type

Query+query=session.createQuery(+"from+MyEntity+where+pairedCol1Col2+in+(:list)"+);
query.setParameterList(+"list",+list+);|5558041|这就完成了工作。|5558042|注意:我在一个Oracle数据库上运行了这个|5558043|entityMap^0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|12|8|@]|9|@]|A|$]]|$1|L|3|M|5|F|7|13|8|@]|9|@]|A|$G|H]]|$1|N|3|-4|5|6|7|14|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|15|8|@]|9|@]|A|$]]|$1|Q|3|R|5|F|7|16|8|@]|9|@]|A|$G|H]]|$1|S|3|T|5|6|7|17|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|18|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|X|$]]

Putting down here how I implemented this. Basically we need to make a Hibernate Component (read @Embeddable object) out of the set of columns we need to query on and embed it in the main Entity.

The group of columns can be combined as below:

<pre><code>@Embeddable
public class CompositeColumns{
 private String col1;
 private String col2;

 //Empty constructor is required by Hibernate for instantiation
 public CompositeColumns(){
 }

 public CompositeColumns(String col1, String col2){
 this.col1 = col1;
 this.col2 = col2;
 }

 @Column(name="COL1")
 public String getCol1(){
 }
 ...
 ... 
 //Rest of getters and setters
}
</code></pre>

 

<hr>

Embed the above in your main entity class as below:

<pre><code>@Entity
public class MyEntity{
 @Id
 private Integer id;
 private String col3;
 private String col4
 @Embedded
 private CompositeColumns pairedCol1Col2;
 ...
 ...
 //Getters Setters

}
</code></pre>

 

<hr>

The query would then look as below:

<pre><code>List&lt;CompositeColumns&gt; cols = //get a list of CompositeColumns type

Query query=session.createQuery( "from MyEntity where pairedCol1Col2 in (:list)" );
query.setParameterList( "list", list );
</code></pre>

 
This does the job.

Note: I ran this on an Oracle database

blocks|key|5074120|text|实体类-在@Embeddable类中创建多个可搜索列，如下所述。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5074121|@Entity
@Table(name="channels_store_images")
@Data
public+class+ChannelsStoreImages+{
++@Id
++@GeneratedValue(strategy+=+GenerationType.IDENTITY)
++@Column(name="id")
++private+Integer+id;

++@Embedded
++private+CompositeColumns+compositeColumns;

++@Embeddable
++@Data
++@AllArgsConstructor
++public+static+class+CompositeColumns+{
++++@Column(name="partner_id")
++++private+String+partnerId;
++++@Column(name="entity_type")
++++private+String+entityType;
++++public+CompositeColumns(){
++++}
++}
}|code-block|syntax|javascript|5074122|然后将对象设为@Embeddable类，然后点击查询，如下所述|5074123|public+List<ChannelsStoreImages>+getChannelsStoreImagesByPartnerIdAndType(List<ChannelsStoreImages.CompositeColumns>+shopIdAndType)+{+
++Query+dbQuery+=++masterEntityManager.createQuery("From+ChannelsStoreImages+
+++++++++++++++where+compositeColumns+IN+(:query)",ChannelsStoreImages.class);
++dbQuery.setParameter("query",shopIdAndType);
++List<ChannelsStoreImages>+channelsStoreImagesList+=+dbQuery.getResultList();
++return+channelsStoreImagesList;
}|5074124|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Entity class - create the multiple searchable columns in @Embeddable class as described below.

<pre><code>@Entity
@Table(name="channels_store_images")
@Data
public class ChannelsStoreImages {
 @Id
 @GeneratedValue(strategy = GenerationType.IDENTITY)
 @Column(name="id")
 private Integer id;

 @Embedded
 private CompositeColumns compositeColumns;

 @Embeddable
 @Data
 @AllArgsConstructor
 public static class CompositeColumns {
 @Column(name="partner_id")
 private String partnerId;
 @Column(name="entity_type")
 private String entityType;
 public CompositeColumns(){
 }
 }
}
</code></pre>

Then make object of @Embeddable class and and hit the query as described below

<pre><code>public List&lt;ChannelsStoreImages&gt; getChannelsStoreImagesByPartnerIdAndType(List&lt;ChannelsStoreImages.CompositeColumns&gt; shopIdAndType) { 
 Query dbQuery = masterEntityManager.createQuery("From ChannelsStoreImages 
 where compositeColumns IN (:query)",ChannelsStoreImages.class);
 dbQuery.setParameter("query",shopIdAndType);
 List&lt;ChannelsStoreImages&gt; channelsStoreImagesList = dbQuery.getResultList();
 return channelsStoreImagesList;
}
</code></pre>

Need to know how to construct a Hibernate Query which fetches results matching an <code>IN</code> clause containing multiple column values.

e.g.,

<pre><code>Query query=session.createQuery( "from entity e where (e.abc, e.xyz) in (:list)" );
query.setParameterList( "list", list );
</code></pre>

Here <code>list</code> would be a 2D array that could contain basic wrapper objects for primitive types e.g., <code>Integer</code>, <code>String</code> etc.

Is this possible?

Hibernate IN Clause with multiple columns

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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需要知道如何构造Hibernate查询，该查询获取与包含多个列值的IN子句匹配的结果。例如，Query query=session.createQuery( "from entity e where (e.abc, e.xyz) in (:list)" );query.setParameterList( "list",...

问具有多列的子句中的Hibernate
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问具有多列的子句中的HibernateEN