org.batoo.jpa.core.impl.criteria

Class AbstractCriteriaQueryImpl<T>

java.lang.Object

org.batoo.jpa.core.impl.criteria.BaseQueryImpl<T>

org.batoo.jpa.core.impl.criteria.AbstractCriteriaQueryImpl<T>

Type Parameters:

T - the type of the result

All Implemented Interfaces:

AbstractQuery<T>, BaseQuery<T>

Direct Known Subclasses:

CriteriaQueryImpl, SubQueryStub

public abstract class AbstractCriteriaQueryImpl<T>
extends BaseQueryImpl<T>
implements AbstractQuery<T>

the definition of the functionality that is common to both top-level queries and subqueries.

It is not intended to be used directly in query construction.

All queries must have a set of root entities (which may in turn own joins).

All queries may have a conjunction of restrictions.

Since:

$version

Author:

hceylan

Constructor Summary

Constructors

Constructor and Description
AbstractCriteriaQueryImpl(MetamodelImpl metamodel, Class<T> resultType)

Method Summary

Methods

Modifier and Type	Method and Description
AbstractQuery<T>	distinct(boolean distinct)
protected AbstractSelection<T>	ensureSelection() Ensures that there is a valid selection.
<X> RootImpl<X>	from(Class<X> entityClass)
<X> RootImpl<X>	from(EntityType<X> entity)
String	generateJpql() Generates the JPQL for the query.
String	generateSql() Returns the generated SQL.
List<Expression<?>>	getGroupList()
PredicateImpl	getGroupRestriction()
PredicateImpl	getRestriction()
Class<T>	getResultType()
Set<Root<?>>	getRoots()
AbstractSelection<T>	getSelection()
AbstractQuery<T>	groupBy(Expression<?>... grouping)
AbstractQuery<T>	groupBy(List<Expression<?>> grouping)
AbstractQuery<T>	having(Expression<Boolean> restriction)
AbstractQuery<T>	having(Predicate... restrictions)
AbstractCriteriaQueryImpl<T>	internal() Marks the query as internal entity query.
boolean	isDistinct()
void	registerParameter(ParameterExpressionImpl<?> parameter) Registers the parameter as the nex SQL parameter
protected AbstractCriteriaQueryImpl<T>	select(Selection<? extends T> selection) Sets the selection
<U> SubqueryImpl<U>	subquery(Class<U> type) Create a subquery of the query.
void	updateResultClass(List<Selection<?>> selections)
AbstractQuery<T>	where(Expression<Boolean> restriction)
AbstractQuery<T>	where(Predicate... restrictions)

Methods inherited from class org.batoo.jpa.core.impl.criteria.BaseQueryImpl

generateTableAlias, getAlias, getAlias, getFieldAlias, getJdbcAdaptor, getJpql, getMetamodel, getParameter, getParameters, getSql, getSqlParameters, isQuery, setNextSqlParam

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCriteriaQueryImpl

public AbstractCriteriaQueryImpl(MetamodelImpl metamodel,
                         Class<T> resultType)

Parameters:

metamodel - the metamodel

resultType - the result type

Since:

$version

Method Detail

distinct

public AbstractQuery<T> distinct(boolean distinct)

Specified by:

distinct in interface AbstractQuery<T>

ensureSelection

protected AbstractSelection<T> ensureSelection()

Ensures that there is a valid selection.

Returns:

the selection

Since:

$version

from

public <X> RootImpl<X> from(Class<X> entityClass)

Specified by:

from in interface AbstractQuery<T>

from

public <X> RootImpl<X> from(EntityType<X> entity)

Specified by:

from in interface AbstractQuery<T>

generateJpql

public String generateJpql()

Generates the JPQL for the query.

Specified by:

generateJpql in interface BaseQuery<T>

Returns:

the generated JPQL

generateSql

public String generateSql()

Returns the generated SQL.

Specified by:

generateSql in interface BaseQuery<T>

Returns:

the generated SQL

getGroupList

public List<Expression<?>> getGroupList()

Specified by:

getGroupList in interface AbstractQuery<T>

getGroupRestriction

public PredicateImpl getGroupRestriction()

Specified by:

getGroupRestriction in interface AbstractQuery<T>

getRestriction

public PredicateImpl getRestriction()

Specified by:

getRestriction in interface AbstractQuery<T>

getResultType

public Class<T> getResultType()

Specified by:

getResultType in interface AbstractQuery<T>

getRoots

public Set<Root<?>> getRoots()

Specified by:

getRoots in interface AbstractQuery<T>

getSelection

public AbstractSelection<T> getSelection()

Specified by:

getSelection in interface AbstractQuery<T>

groupBy

public AbstractQuery<T> groupBy(Expression<?>... grouping)

Specified by:

groupBy in interface AbstractQuery<T>

groupBy

public AbstractQuery<T> groupBy(List<Expression<?>> grouping)

Specified by:

groupBy in interface AbstractQuery<T>

having

public AbstractQuery<T> having(Expression<Boolean> restriction)

Specified by:

having in interface AbstractQuery<T>

having

public AbstractQuery<T> having(Predicate... restrictions)

Specified by:

having in interface AbstractQuery<T>

internal

public AbstractCriteriaQueryImpl<T> internal()

Marks the query as internal entity query.

Returns:

self

Since:

$version

isDistinct

public boolean isDistinct()

Specified by:

isDistinct in interface AbstractQuery<T>

registerParameter

public void registerParameter(ParameterExpressionImpl<?> parameter)

Registers the parameter as the nex SQL parameter

Parameters:

parameter - the parameter to register

Since:

$version

select

protected AbstractCriteriaQueryImpl<T> select(Selection<? extends T> selection)

Sets the selection

Parameters:

selection - the selection

Returns:

the modified query

Since:

$version

subquery

public <U> SubqueryImpl<U> subquery(Class<U> type)

Create a subquery of the query.

Specified by:

subquery in interface AbstractQuery<T>

Specified by:

subquery in interface BaseQuery<T>

Type Parameters:

U - The type of the represented object

Parameters:

type - the subquery result type

Returns:

subquery

updateResultClass

public void updateResultClass(List<Selection<?>> selections)

Parameters:

selections - the selections

Since:

$version

where

public AbstractQuery<T> where(Expression<Boolean> restriction)

Specified by:

where in interface AbstractQuery<T>

where

public AbstractQuery<T> where(Predicate... restrictions)

Specified by:

where in interface AbstractQuery<T>