Package com.atlassian.bamboo.jpa

Class JpaUtils.CriteriaQuery<E,R>

java.lang.Object

com.atlassian.bamboo.jpa.JpaUtils.CriteriaQuery<E,R>

Enclosing class:

JpaUtils

public abstract static class JpaUtils.CriteriaQuery<E,R>
extends Object

Creates a CriteriaQuery wrapper that initialises commonly used JPA variables. You can customise the query through apply() and run it with one of the getXXX methods.

Field Summary

Fields

Modifier and Type	Field	Description
protected final jakarta.persistence.criteria.CriteriaBuilder	cb
protected final jakarta.persistence.criteria.Root<? extends E>	entity
protected final jakarta.persistence.criteria.CriteriaQuery<R>	q

Constructor Summary

Constructors

Constructor	Description
CriteriaQuery(org.hibernate.SessionFactory sessionFactory, Class<? extends E> entity, Class<R> result)

Method Summary

Modifier and Type	Method	Description
protected abstract void	apply()
R	firstResultOrNull()
List<R>	getResultList()
List<R>	getResultList(int firstResult, int maxResults)
R	getSingleResult()
R	uniqueResult()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

cb

protected final jakarta.persistence.criteria.CriteriaBuilder cb

q

protected final jakarta.persistence.criteria.CriteriaQuery<R> q

entity

protected final jakarta.persistence.criteria.Root<? extends E> entity

Constructor Details

CriteriaQuery

public CriteriaQuery(org.hibernate.SessionFactory sessionFactory,
 Class<? extends E> entity,
 Class<R> result)

Method Details

apply

protected abstract void apply()

getSingleResult

public R getSingleResult()

See Also:

• TypedQuery.getSingleResult()

uniqueResult

public R uniqueResult()

getResultList

public List<R> getResultList()

See Also:

• TypedQuery.getResultList()

getResultList

public List<R> getResultList(int firstResult,
 int maxResults)

See Also:

• TypedQuery.setFirstResult(int)
• TypedQuery.setMaxResults(int)
• TypedQuery.getResultList()

firstResultOrNull

@Nullable
public R firstResultOrNull()

Returns:

top result of a query (which should really be an ordered query) or null if no results