/*
* Copyright 2011, Mysema Ltd
*
* 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.mysema.query;
import java.util.List;
import java.util.Map;
import javax.persistence.EntityManager;
import com.mysema.query.jpa.impl.JPAQuery;
import com.mysema.query.types.EntityPath;
import com.mysema.query.types.path.ComparablePath;
import com.mysema.query.types.path.EntityPathBase;
import com.mysema.query.types.path.SimplePath;
/**
* @author tiwe
*
*/
public class CustomFinder {
public static <T> List<T> findCustom(EntityManager em, Class<T> entityClass,Map<String,?> filters, String sort) {
EntityPath<T> entityPath = new EntityPathBase<T>(entityClass, "entity");
BooleanBuilder builder = new BooleanBuilder();
for (Map.Entry<String, ?> entry : filters.entrySet()) {
SimplePath<Object> property = new SimplePath<Object>(entry.getValue().getClass(), entityPath, entry.getKey());
builder.and(property.eq(entry.getValue()));
}
ComparablePath<?> sortProperty = new ComparablePath(Comparable.class, entityPath, sort);
return new JPAQuery(em).from(entityPath).where(builder.getValue()).orderBy(sortProperty.asc()).list(entityPath);
}
}