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Description:
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Please consider the following mapping :
{code}
@ManyToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE}, fetch = FetchType.LAZY)
@IndexColumn(name = "ListIndex")
@JoinTable(
name = "odp_rulemanipulatorjoin",
joinColumns = @JoinColumn(name = "RoutingRuleId"),
inverseJoinColumns = @JoinColumn(name = "ManipulatorComponentId")
)
@OrderBy(value = "priority asc")
public List<RoutingManipulationComponent> getManipulators() {
if (manipulators == null) {
manipulators = new ArrayList<RoutingManipulationComponent>();
}
return manipulators;
}
{code}
***********************************
{code}
@Entity(name = "RoutingManipulationComponent")
@DiscriminatorValue("RoutingManipulationComponent")
public abstract class RoutingManipulationComponent
extends RoutingComponent implements Initializable {
/**
* Applies the manipulation to the given context.
*
* @param context the routing context to manipulate
* @return true if any manipulation was applied, false if no manipulation
* occurred
*/
public abstract boolean apply(RoutingContext context);
}
******************************************
{code}
{code}
@Entity(name = "RoutingComponent")
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(
name = "RoutingComponentType",
discriminatorType = DiscriminatorType.STRING
)
@DiscriminatorValue("RoutingComponent")
@Table(name = "odp_routingcomponent")
public abstract class RoutingComponent extends DialPlanProvisionalEntity {
@Deprecated
public RoutingComponent() {
// blank
}
/**
* @param name
* @param description
*/
public RoutingComponent(String name, String description) {
super(name, description);
}
}
{code}
*******************************
{code}
@MappedSuperclass
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public abstract class DialPlanProvisionalEntity
extends ProvisionalEntity
implements Initializable {
private Long entityId;
private boolean visible = true;
private int priority;
/**
* Not for direct instantiation - this constructor also serves as public
* constructor for hibernate, jax-ws etc. <br>
*/
@Deprecated
public DialPlanProvisionalEntity() {
this("(no name set)", "(no description set)");
}
/**
* @param name
* @param description
*/
public DialPlanProvisionalEntity(String name, String description) {
creationDate = GregorianCalendar.getInstance(); // now
}
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Override
public Long getId() {
return entityId;
}
@Override
public void setId(Long ruleCollectionId) {
this.entityId = ruleCollectionId;
}
/**
* @return Returns the priority.
*/
public int getPriority() {
return priority;
}
/**
* @param priority The priority to set.
*/
public void setPriority(int priority) {
this.priority = priority;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || Hibernate.getClass(this) != Hibernate.getClass(o)) {
return false;
}
final ProvisionalEntity other = (ProvisionalEntity) o;
return MiscUtils.equalOrBothNull(this.getName(), other.getName());
}
@Override
public int hashCode() {
String name = this.getName();
return getClass().getName().hashCode() + 13 * name.hashCode();
}
}
{code}
The above mapping should use the "priority" field to the ordering.
SQL that is produced is :
{noformat}
select criteria0_.RoutingRuleId as RoutingR1_1_, criteria0_.CriteriaComponentId as Criteria2_1_,
criteria0_.ListIndex as ListIndex1_,
routingcri1_.id as id73_0_,
routingcri1_.creationDate as creation3_73_0_,
routingcri1_.description as descript4_73_0_,
routingcri1_.lastModificationDate as lastModi5_73_0_,
routingcri1_.name as name73_0_,
routingcri1_.predefined as predefined73_0_,
routingcri1_.status as status73_0_,
routingcri1_.priority as priority73_0_,
routingcri1_.visible as visible73_0_,
routingcri1_.matcher_id as matcher25_73_0_,
routingcri1_.criterion_id as criterion27_73_0_,
routingcri1_.location_id aslocation26_73_0_,
routingcri1_.RoutingComponentType as RoutingC1_73_0_
from odp_rulecriteriajoin criteria0_
left outer join odp_routingcomponent as routingcri1_ on criteria0_.CriteriaComponentId=routingcri1_.id
where criteria0_.RoutingRuleId=1 order by odp_routingcomponent .priority asc
{noformat}
It is wrong since not the table alias is used in the order by clause, but the real table name.
Mysql fails with exception that odp_rulecriteriajoin.priority is unknown table.
Changing the query to include "order by criteria0_.priority asc" returns the correct result.
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Fixed formatting to be able to actually read this