net.sf.mmm.jpa.impl.query.statement.jpql

Class JpqlSelectStatementImpl<E,T>

java.lang.Object

net.sf.mmm.util.query.base.statement.AbstractStatement<E,SELF>

net.sf.mmm.util.query.base.statement.AbstractSelectStatement<E,JpqlSelectStatement<E>,T>

net.sf.mmm.jpa.impl.query.statement.jpql.JpqlSelectStatementImpl<E,T>

Type Parameters:

E - the generic type of the queried object (typically a Bean).

T - the generic type of the internal results. See AbstractSelectStatement.getMapper().

All Implemented Interfaces:

JpqlSelectStatement<E>, Command, FeatureAndFrom<JpqlSelectStatement<E>>, FeatureFetch<E>, FeatureGroupBy<JpqlSelectStatement<E>>, FeatureHaving<JpqlSelectStatement<E>>, FeatureLimit<JpqlSelectStatement<E>>, FeatureOrderBy<JpqlSelectStatement<E>>, FeaturePaging<JpqlSelectStatement<E>>, FeatureWhere<JpqlSelectStatement<E>>, StatementFeature, SelectStatement<E,JpqlSelectStatement<E>>, Statement<E,JpqlSelectStatement<E>>

public class JpqlSelectStatementImpl<E,T>
extends AbstractSelectStatement<E,JpqlSelectStatement<E>,T>
implements JpqlSelectStatement<E>

Implementation of JpqlSelectStatement.

Since:

8.0.0

Author:

hohwille

Field Summary

Fields

Modifier and Type	Field and Description
private javax.persistence.EntityManager	entityManager

Constructor Summary

Constructors

Constructor and Description
JpqlSelectStatementImpl(javax.persistence.EntityManager entityManager, JpqlDialect dialect, EntityAlias<?> alias, Function<T,E> mapper, Class<E> toClass, PropertyPath<?>... constructorArgs) The constructor.
JpqlSelectStatementImpl(javax.persistence.EntityManager entityManager, JpqlDialect dialect, EntityAlias<?> alias, Function<T,E> mapper, PropertyPath<?>... paths) The constructor.
JpqlSelectStatementImpl(javax.persistence.EntityManager entityManager, JpqlDialect dialect, EntityAlias<E> alias, Function<T,E> mapper) The constructor.
JpqlSelectStatementImpl(javax.persistence.EntityManager entityManager, SqlDialect dialect, EntityAlias<?> alias, Function<T,E> mapper, Class<E> toClass, PropertyPath<?>... constructorArgs) The constructor.
JpqlSelectStatementImpl(javax.persistence.EntityManager entityManager, SqlDialect dialect, EntityAlias<?> alias, Function<T,E> mapper, PropertyPath<?>... paths) The constructor.

Method Summary

Modifier and Type	Method and Description
JpqlSelectStatement<E>	andFrom(EntityAlias<?>... aliases)
protected Object	doExecute(String sql, QueryMode mode, Long offset, Integer limit) Creates a select query with the given SQL and the given arguments.
protected javax.persistence.EntityManager	getEntityManager()
JpqlSelectStatement<E>	having(Expression... expressions) Adds the given Expressions as filter criteria to the WHERE-clause.

Methods inherited from class net.sf.mmm.util.query.base.statement.AbstractSelectStatement

buildStart, createSqlSingleQuery, execute, getMapper, getSelectionPaths, groupBy, limit, offset, orderBy, query, queryCount, queryFirst, queryOne, querySingle, where

Methods inherited from class net.sf.mmm.util.query.base.statement.AbstractStatement

addAlias, addAliases, build, createFeature, createSqlBuilder, feature, getAlias, getBuilder, getDialect, getFeature, getParameters, getResultClass, getSql, isSupportingAlias, self, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.mmm.util.query.api.statement.Statement

getAlias, getDialect, getParameters, getSql, toString

Methods inherited from interface net.sf.mmm.util.query.api.feature.FeatureFetch

fetch, fetchCount, fetchFirst, fetchFirstRequired, fetchOne, fetchOneRequired, query, queryCount, queryFirst, queryOne

Methods inherited from interface net.sf.mmm.util.query.api.feature.FeatureWhere

where

Methods inherited from interface net.sf.mmm.util.query.api.feature.FeatureOrderBy

orderBy, orderBy

Methods inherited from interface net.sf.mmm.util.query.api.feature.FeatureGroupBy

groupBy

Methods inherited from interface net.sf.mmm.util.query.api.feature.FeaturePaging

offset

Methods inherited from interface net.sf.mmm.util.query.api.feature.FeatureLimit

limit

Field Detail

entityManager

private final javax.persistence.EntityManager entityManager

Constructor Detail

JpqlSelectStatementImpl

public JpqlSelectStatementImpl(javax.persistence.EntityManager entityManager,
                               JpqlDialect dialect,
                               EntityAlias<E> alias,
                               Function<T,E> mapper)

The constructor.

Parameters:

entityManager - the EntityManager instance.

dialect - - see AbstractStatement.getDialect(). Typically JpqlDialect.INSTANCE.

alias - - see AbstractStatement.getAlias().

mapper - - see AbstractSelectStatement.getMapper().

JpqlSelectStatementImpl

public JpqlSelectStatementImpl(javax.persistence.EntityManager entityManager,
                               SqlDialect dialect,
                               EntityAlias<?> alias,
                               Function<T,E> mapper,
                               Class<E> toClass,
                               PropertyPath<?>... constructorArgs)

The constructor.

Parameters:

entityManager - the EntityManager instance.

dialect - - see AbstractStatement.getDialect(). Typically JpqlDialect.INSTANCE.

alias - - see AbstractStatement.getAlias().

mapper - - see AbstractSelectStatement.getMapper().

toClass - - see net.sf.mmm.util.query.api.statement.StatementFactory#selectFrom(EntityAlias, Class, Path...).

constructorArgs - - see net.sf.mmm.util.query.api.statement.StatementFactory#selectFrom(EntityAlias, Class, Path...).

JpqlSelectStatementImpl

public JpqlSelectStatementImpl(javax.persistence.EntityManager entityManager,
                               SqlDialect dialect,
                               EntityAlias<?> alias,
                               Function<T,E> mapper,
                               PropertyPath<?>... paths)

The constructor.

Parameters:

entityManager - the EntityManager instance.

dialect - - see AbstractStatement.getDialect(). Typically JpqlDialect.INSTANCE.

alias - - see AbstractStatement.getAlias().

mapper - - see AbstractSelectStatement.getMapper().

paths - - see JpqlStatementFactory.selectFrom(EntityAlias, Class, PropertyPath...) .

JpqlSelectStatementImpl

public JpqlSelectStatementImpl(javax.persistence.EntityManager entityManager,
                               JpqlDialect dialect,
                               EntityAlias<?> alias,
                               Function<T,E> mapper,
                               PropertyPath<?>... paths)

The constructor.

Parameters:

entityManager - the EntityManager instance.

dialect - - see AbstractStatement.getDialect(). Typically JpqlDialect.INSTANCE.

alias - - see AbstractStatement.getAlias().

mapper - - see AbstractSelectStatement.getMapper().

paths - - see FeatureSelect.selectFrom(EntityAlias, Class, PropertyPath...) .

JpqlSelectStatementImpl

public JpqlSelectStatementImpl(javax.persistence.EntityManager entityManager,
                               JpqlDialect dialect,
                               EntityAlias<?> alias,
                               Function<T,E> mapper,
                               Class<E> toClass,
                               PropertyPath<?>... constructorArgs)

The constructor.

Parameters:

entityManager - the EntityManager instance.

dialect - - see AbstractStatement.getDialect(). Typically JpqlDialect.INSTANCE.

alias - - see AbstractStatement.getAlias().

mapper - - see AbstractSelectStatement.getMapper().

toClass - - see net.sf.mmm.util.query.api.statement.StatementFactory#selectFrom(EntityAlias, Class, Path...).

constructorArgs - - see net.sf.mmm.util.query.api.statement.StatementFactory#selectFrom(EntityAlias, Class, Path...).

Method Detail

getEntityManager

protected javax.persistence.EntityManager getEntityManager()

Returns:

the EntityManager.

doExecute

protected Object doExecute(String sql,
                           QueryMode mode,
                           Long offset,
                           Integer limit)

Description copied from class: AbstractSelectStatement

Creates a select query with the given SQL and the given arguments.

Specified by:

doExecute in class AbstractSelectStatement<E,JpqlSelectStatement<E>,T>

Parameters:

sql - the SQL to execute.

mode - the QueryMode.

offset - the offset.

limit - the limit.

Returns:

the result of the SQL execution.

having

public JpqlSelectStatement<E> having(Expression... expressions)

Description copied from interface: FeatureHaving

Adds the given Expressions as filter criteria to the WHERE-clause. Multiple invocations will combine Expressions with logical AND but it is preferred to use a single invocation.

Specified by:

having in interface FeatureHaving<JpqlSelectStatement<E>>

Parameters:

expressions - the Expressions to add.

Returns:

this query instance for fluent API calls.

andFrom

public JpqlSelectStatement<E> andFrom(EntityAlias<?>... aliases)

Specified by:

andFrom in interface FeatureAndFrom<JpqlSelectStatement<E>>

Parameters:

aliases - the CollectionPath to select from (in addition to Statement.getAlias()).

Returns:

this query instance for fluent API calls.