org.opencastproject.util.persistence

Class Queries

java.lang.Object

org.opencastproject.util.persistence.Queries

public final class Queries
extends Object

JPA query constructors.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Queries.QueriesBase<P>
static class	Queries.TypedQueriesBase<P>

Field Summary

Fields

Modifier and Type	Field and Description
static Queries.TypedQueriesBase<Tuple<String,?>>	jpql JPQL queries with support for named parameters.
static Queries.TypedQueriesBase<Tuple<String,?>>	named Named queries with support for named parameters.
static Queries.QueriesBase<Object>	sql Native SQL queries.

Method Summary

Modifier and Type	Method and Description
static <A> Function<javax.persistence.EntityManager,Option<A>>	find(Class<A> clazz, Object primaryKey) EntityManager.find(Class, Object) as a function wrapping the result into an Option.
static <A> Function<javax.persistence.EntityManager,A>	merge(A a) EntityManager.merge(Object) as a function.
static <A> Function<javax.persistence.EntityManager,A>	persist(A a) EntityManager.persist(Object) as a function.
static <A> Function<javax.persistence.EntityManager,A>	persistOrUpdate(A a)
static <A> A	persistOrUpdate(javax.persistence.EntityManager em, A a)
static <A> Function<javax.persistence.EntityManager,A>	remove(A a) EntityManager.remove(Object) as a function.
static <A extends javax.persistence.Query> A	setParams(A q, Object... params) Set a list of positional parameters on a query.
static <A extends javax.persistence.Query> A	setParams(A q, Tuple<String,?>... params) Set a list of named parameters on a query.

Methods inherited from class java.lang.Object

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

Field Detail

named

public static final Queries.TypedQueriesBase<Tuple<String,?>> named

Named queries with support for named parameters.

jpql

public static final Queries.TypedQueriesBase<Tuple<String,?>> jpql

JPQL queries with support for named parameters.

sql

public static final Queries.QueriesBase<Object> sql

Native SQL queries. Only support positional parameters.

Method Detail

find

public static <A> Function<javax.persistence.EntityManager,Option<A>> find(Class<A> clazz,
                                                                           Object primaryKey)

EntityManager.find(Class, Object) as a function wrapping the result into an Option.

persist

public static <A> Function<javax.persistence.EntityManager,A> persist(A a)

EntityManager.persist(Object) as a function.

merge

public static <A> Function<javax.persistence.EntityManager,A> merge(A a)

EntityManager.merge(Object) as a function.

remove

public static <A> Function<javax.persistence.EntityManager,A> remove(A a)

EntityManager.remove(Object) as a function.

persistOrUpdate

public static <A> A persistOrUpdate(javax.persistence.EntityManager em,
                                    A a)

persistOrUpdate

public static <A> Function<javax.persistence.EntityManager,A> persistOrUpdate(A a)

setParams

public static <A extends javax.persistence.Query> A setParams(A q,
                                                              Tuple<String,?>... params)

Set a list of named parameters on a query. Values of type Date and AbstractInstant are recognized and set as a timestamp (TemporalType.TIMESTAMP.

setParams

public static <A extends javax.persistence.Query> A setParams(A q,
                                                              Object... params)

Set a list of positional parameters on a query. Values of type Date and AbstractInstant are recognized and set as a timestamp (TemporalType.TIMESTAMP.