forked from Blazebit/blaze-persistence
/
EntityViewBasePropertyQueryPart.java
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/
EntityViewBasePropertyQueryPart.java
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/*
* Copyright 2014 - 2017 Blazebit.
*
* 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 com.blazebit.persistence.deltaspike.data.impl.builder.part;
import com.blazebit.persistence.deltaspike.data.impl.meta.EntityViewRepositoryComponent;
import org.apache.deltaspike.data.impl.builder.MethodExpressionException;
import org.apache.deltaspike.data.impl.property.Property;
import org.apache.deltaspike.data.impl.property.query.NamedPropertyCriteria;
import org.apache.deltaspike.data.impl.property.query.PropertyQueries;
import org.apache.deltaspike.data.impl.property.query.PropertyQuery;
/**
* Implementation is similar to {@link org.apache.deltaspike.data.impl.builder.part.BasePropertyQueryPart} but was modified to
* work with entity views.
*
* @author Moritz Becker
* @since 1.2.0
*/
abstract class EntityViewBasePropertyQueryPart extends EntityViewQueryPart {
static final String SEPARATOR = "_";
void validate(String name, String method, EntityViewRepositoryComponent repo) {
Class<?> current = repo.getEntityClass();
if (name == null) {
throw new MethodExpressionException(null, repo.getRepositoryClass(), method);
}
for (String property : name.split(SEPARATOR)) {
PropertyQuery<?> query = PropertyQueries.createQuery(current)
.addCriteria(new NamedPropertyCriteria(property));
Property<?> result = query.getFirstResult();
if (result == null) {
throw new MethodExpressionException(property, repo.getRepositoryClass(), method);
}
current = result.getJavaClass();
}
}
String rewriteSeparator(String name) {
if (name.contains("_")) {
return name.replaceAll(SEPARATOR, ".");
}
return name;
}
}