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Spring Data module for JPA repositories.
/*
* Copyright 2013-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.jpa.repository.query;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import org.springframework.data.repository.query.EvaluationContextProvider;
import org.springframework.data.repository.query.Parameters;
import org.springframework.data.repository.query.RepositoryQuery;
import org.springframework.expression.spel.standard.SpelExpressionParser;
/**
* {@link RepositoryQuery} implementation that inspects a {@link org.springframework.data.repository.query.QueryMethod}
* for the existence of an {@link org.springframework.data.jpa.repository.Query} annotation and creates a JPA native
* {@link Query} from it.
*
* @author Thomas Darimont
*/
final class NativeJpaQuery extends AbstractStringBasedJpaQuery {
/**
* Creates a new {@link NativeJpaQuery} encapsulating the query annotated on the given {@link JpaQueryMethod}.
*
* @param method must not be {@literal null}.
* @param em must not be {@literal null}.
* @param queryString must not be {@literal null} or empty.
* @param evaluationContextProvider
*/
public NativeJpaQuery(JpaQueryMethod method, EntityManager em, String queryString,
EvaluationContextProvider evaluationContextProvider, SpelExpressionParser parser) {
super(method, em, queryString, evaluationContextProvider, parser);
Parameters parameters = method.getParameters();
boolean hasPagingOrSortingParameter = parameters.hasPageableParameter() || parameters.hasSortParameter();
boolean containsPageableOrSortInQueryExpression = queryString.contains("#pageable")
|| queryString.contains("#sort");
if (hasPagingOrSortingParameter && !containsPageableOrSortInQueryExpression) {
throw new InvalidJpaQueryMethodException(
"Cannot use native queries with dynamic sorting and/or pagination in method " + method);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.jpa.repository.query.AbstractStringBasedJpaQuery#createJpaQuery(java.lang.String)
*/
@Override
public Query createJpaQuery(String queryString) {
return getQueryMethod().isQueryForEntity() ? getEntityManager().createNativeQuery(queryString,
getQueryMethod().getReturnedObjectType()) : getEntityManager().createNativeQuery(queryString);
}
}