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java.util.Collection support for the UIBuilder Data module

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/*
 *
 * Copyright © 2018 Webvalto 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 io.devbench.uibuilder.data.collectionds;

import io.devbench.uibuilder.data.api.order.OrderExpression;
import io.devbench.uibuilder.data.api.order.SortOrder;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class CollectionOrderExpression implements OrderExpression {

    private final List orders = new ArrayList<>();

    @Override
    public void addOrder(SortOrder sortOrder) {
        orders.add(sortOrder);
    }

    public List getOrders() {
        return Collections.unmodifiableList(orders);
    }
}