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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.openjpa.persistence.criteria;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.sql.Date;
import java.sql.Time;
import java.sql.Timestamp;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
import javax.persistence.Tuple;
import javax.persistence.criteria.CollectionJoin;
import javax.persistence.criteria.CompoundSelection;
import javax.persistence.criteria.CriteriaDelete;
import javax.persistence.criteria.CriteriaUpdate;
import javax.persistence.criteria.Expression;
import javax.persistence.criteria.From;
import javax.persistence.criteria.Join;
import javax.persistence.criteria.ListJoin;
import javax.persistence.criteria.MapJoin;
import javax.persistence.criteria.Order;
import javax.persistence.criteria.ParameterExpression;
import javax.persistence.criteria.Path;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Predicate.BooleanOperator;
import javax.persistence.criteria.Root;
import javax.persistence.criteria.Selection;
import javax.persistence.criteria.SetJoin;
import javax.persistence.criteria.Subquery;
import javax.persistence.metamodel.Attribute;
import javax.persistence.metamodel.ManagedType;
import javax.persistence.metamodel.Metamodel;
import org.apache.openjpa.kernel.ExpressionStoreQuery;
import org.apache.openjpa.kernel.exps.ExpressionFactory;
import org.apache.openjpa.kernel.exps.ExpressionParser;
import org.apache.openjpa.kernel.exps.QueryExpressions;
import org.apache.openjpa.kernel.exps.Value;
import org.apache.openjpa.meta.ClassMetaData;
import org.apache.openjpa.persistence.meta.MetamodelImpl;
/**
* Factory for Criteria query expressions.
*
* Acts as an adapter to OpenJPA ExpressionFactory.
*
* @author Pinaki Poddar
* @author Fay Wang
*
* @since 2.0.0
*
*/
public class CriteriaBuilderImpl implements OpenJPACriteriaBuilder, ExpressionParser {
private static final long serialVersionUID = 1L;
private MetamodelImpl _model;
public OpenJPACriteriaBuilder setMetaModel(MetamodelImpl model) {
_model = model;
return this;
}
@Override
public Metamodel getMetamodel() {
return _model;
}
@Override
public QueryExpressions eval(Object parsed, ExpressionStoreQuery query,
ExpressionFactory factory, ClassMetaData candidate) {
CriteriaQueryImpl c = (CriteriaQueryImpl) parsed;
return c.getQueryExpressions(factory);
}
@Override
public Value[] eval(String[] vals, ExpressionStoreQuery query,
ExpressionFactory factory, ClassMetaData candidate) {
return null;
}
@Override
public String getLanguage() {
return LANG_CRITERIA;
}
/**
* Create a Criteria query object with the specified result type.
* @param resultClass type of the query result
* @return query object
*/
@Override
public OpenJPACriteriaQuery createQuery(Class resultClass) {
return new CriteriaQueryImpl<>(_model, resultClass);
}
/**
* Create a Criteria query object that returns a tuple of
* objects as its result.
* @return query object
*/
@Override
public OpenJPACriteriaQuery createTupleQuery() {
return new CriteriaQueryImpl<>(_model, Tuple.class);
}
@Override
public CriteriaUpdate createCriteriaUpdate(Class targetEntity) {
throw new UnsupportedOperationException("JPA 2.1");
}
@Override
public CriteriaDelete createCriteriaDelete(Class targetEntity) {
throw new UnsupportedOperationException("JPA 2.1");
}
@Override
public Object parse(String ql, ExpressionStoreQuery query) {
throw new AbstractMethodError();
}
@Override
public void populate(Object parsed, ExpressionStoreQuery query) {
CriteriaQueryImpl c = (CriteriaQueryImpl) parsed;
query.invalidateCompilation();
query.getContext().setCandidateType(c.getRoot().getJavaType(), true);
query.setQuery(parsed);
}
@Override
public Expression abs(Expression x) {
return new Expressions.Abs<>(x);
}
@Override
public Expression all(Subquery subquery) {
return new Expressions.All<>(subquery);
}
@Override
public Predicate and(Predicate... restrictions) {
return new PredicateImpl.And(restrictions);
}
@Override
public Predicate and(Expression x, Expression y) {
return new PredicateImpl.And(x,y);
}
@Override
public Expression any(Subquery subquery) {
return new Expressions.Any<>(subquery);
}
@Override
public Order asc(Expression x) {
return new OrderImpl(x, true);
}
@Override
public Expression avg(Expression x) {
return new Expressions.Avg(x);
}
@Override
public > Predicate between(Expression v, Expression x,
Expression y) {
return new Expressions.Between(v,x,y);
}
@Override
public > Predicate between(Expression v, Y x, Y y) {
return new Expressions.Between(v,x,y);
}
@Override
public Coalesce coalesce() {
return new Expressions.Coalesce(Object.class);
}
@Override
public Expression coalesce(Expression x, Expression y) {
return new Expressions.Coalesce(x.getJavaType()).value(x).value(y);
}
@Override
public Expression coalesce(Expression x, Y y) {
return new Expressions.Coalesce(x.getJavaType()).value(x).value(y);
}
@Override
public Expression concat(Expression x, Expression y) {
return new Expressions.Concat(x, y);
}
@Override
public Expression concat(Expression x, String y) {
return new Expressions.Concat(x, y);
}
@Override
public Expression concat(String x, Expression y) {
return new Expressions.Concat(x, y);
}
@Override
public Predicate conjunction() {
return new PredicateImpl.And();
}
@Override
public Expression count(Expression x) {
return new Expressions.Count(x);
}
@Override
public Expression countDistinct(Expression x) {
return new Expressions.Count(x, true);
}
@Override
public OpenJPACriteriaQuery
