com.github.lothar.security.acl.jpa.multithread.CurrentUserLastNameSpec.java Source code

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Here is the source code for com.github.lothar.security.acl.jpa.multithread.CurrentUserLastNameSpec.java

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/*******************************************************************************
 * Copyright 2002-2016 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 com.github.lothar.security.acl.jpa.multithread;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.springframework.data.jpa.domain.Specification;

import com.github.lothar.security.acl.jpa.domain.Customer;

public class CurrentUserLastNameSpec implements Specification<Customer> {

    @Override
    public Predicate toPredicate(Root<Customer> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
        String currentUserLastName = Session.currentUserLastName();
        if (currentUserLastName == null) {
            return cb.conjunction();
        } else {
            return cb.equal(root.get("lastName"), currentUserLastName);
        }
    }
}