package org.apache.vxquery.datamodel.accessors;

import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;

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

public class ArrayBackedValueStoragePool {
    private final List<ArrayBackedValueStorage> abvsList;

    public ArrayBackedValueStoragePool() {
        abvsList = new ArrayList<>();
    }

    public ArrayBackedValueStorage takeOne() {
        if (abvsList.isEmpty()) {
            return new ArrayBackedValueStorage();
        }
        return abvsList.remove(abvsList.size() - 1);
    }

    public void giveBack(ArrayBackedValueStorage abvs) {
        abvsList.add(abvs);
    }
}

@@ -1,8 +1,810 @@
+/*%0A * Licensed to the Apache Software Foundation (ASF) under one or more%0A * contributor license agreements.  See the NOTICE file distributed with%0A * this work for additional information regarding copyright ownership.%0A * The ASF licenses this file to You under the Apache License, Version 2.0%0A * (the %22License%22); you may not use this file except in compliance with%0A * the License.  You may obtain a copy of the License at%0A *%0A *     http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0A
 package 

add license header