hibernate-criteria

I have an Entity Transaction as following : @Entity class Transaction extends AbstractEntity<Long>{ private static final long serialVersionUID = 7222139865127600245L; //other attributes @ElementCollection(fetch = FetchType.EAGER, targetClass = java.lang.String.class) @CollectionTable(name = "transaction_properties", joinColumns = @JoinColumn(name = "p_id")) @MapKeyColumn(name = "propertyKey") @Column(name = "propertyValue") private Map<String, String> properties; //getters and setters } So, my Database Table for transaction_properties is mysql> desc transaction_properties; +---------------+---

I'm using Spring 3.1.1.RELEASE, Hibernate 4.1.0.Final, JUnit 4.8, and JPA 2.0 (hibernate-jpa-2.0-api). I'm trying to write a query and search based on fields of member fields. What I mean is I have this entity … @GenericGenerator(name = "uuid-strategy", strategy = "uuid.hex") @Entity @Table(name = "cb_organization", uniqueConstraints = {@UniqueConstraint(columnNames={"organization_id"})}) public class Organization implements Serializable { @Id @NotNull @GeneratedValue(generator = "uuid-strategy") @Column(name = "id") /* the database id of the Organization */ private String id; @ManyToOne

I have a Bean like this Class TestA { Map<String,TestB> testBMap; } Class TestB { String data; ... } I want to fetch the TestA data along with the map testBMap where key ='test1' . How can i do this using Hibernate. The key must be the value of one of the persistent fields of TestB (let's says this field is names "foo"), so this code should work : Criteria criteria = session.createCriteria(TestA.class, "a"); criteria.createAlias("a.testBMap", "b"); criteria.add(Restrictions.eq("b.foo", "test1")); criteria.setFetchMode("a.testBMap", FetchMode.JOIN); return criteria.list(); YoMan78 In my case

I have three entities. those are: @Entity public class Organization { @Id private long id; @Column private String name; } @Entity public class Book { @Id private Long id; @Column private String name; @ManyToOne private Organization organization; } @Entity public class Account { @Id private Long id; @Column private String name; @ManyToOne private Book book; } In these three entities I would like to perform following sql: SELECT acc.name, acc.id FROM account acc JOIN book b on acc.book_id = b.id JOIN organization org on b.organization_id = org.id WHERE org.name = 'XYZ' In this case Account

I can mock calls to: MyDomainClass.createCriteria().list{ eq('id',id) eq('anotherParameter',anotherParameterId) } with: def myCriteria = [ list : {Closure cls -> returnThisObject} ] MyDomainClass.metaClass.static.createCriteria = { myCriteria } as advised at: http://davistechyinfo.blogspot.com/2010/01/mocking-hibernate-criteria-in-grails.html but for: MyDomainClass.createCriteria().get{ eq('id',id) eq('anotherParameter',anotherParameterId) } This approach fails - maybe because 'get' is a keyword in a way 'list' is not. Can anyone advise - being able to mock this in domain classes should be

Let's say Item and Bid are entities: an Item has many Bids. They are mapped in Hibernate in a typical parent/child relationship: <class name="Item" table="ITEM"> ... <set name="bids" inverse="true"> <key column="ITEM_ID"/> <one-to-many class="Bid"/> </set> </class> How can I avoid n+1 selects when trying to access the bids of each Item after this query is executed? List<Item> items = session.createCriteria(Item.class) .createAlias("bids", "b"). .add(Restrictions.gt("b.amount", 100)). .list(); Note I need an eager fetching for bids but with a further restriction on the collection (b.amount >