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Utilities for JPA, JDBC and DataSources

There is a newer version: 0.22.J1

/*
 * Copyright 2018 OmniFaces
 *
 * 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.omnifaces.persistence.service;

import java.util.Set;

import javax.persistence.criteria.Fetch;

/**
 * This class postpones all {@link Fetch#fetch(String)} calls.
 * @see EclipseLinkRoot
 */
class PostponedFetch extends FetchWrapper {

	private Set postponedFetches;
	private String path;

	public PostponedFetch(Set postponedFetches, String path) {
		super(null);
		this.postponedFetches = postponedFetches;
		this.path = path;
		postponedFetches.add(path);
	}

	@Override
	@SuppressWarnings("hiding")
	public  Fetch fetch(String attributeName) {
		return new PostponedFetch<>(postponedFetches, path + "." + attributeName);
	}

}