com.lithium.flow.collect.LongArray Maven / Gradle / Ivy
/*
* Copyright 2015 Lithium Technologies, Inc.
*
* 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.lithium.flow.collect;
import java.nio.LongBuffer;
import java.util.Arrays;
import javax.annotation.Nonnull;
/**
* @author Matt Ayres
*/
public class LongArray {
private long[] array;
private int pos;
private final float grow;
public LongArray() {
this(1024, 1.5f);
}
public LongArray(int initialSize, float growthFactor) {
array = new long[initialSize];
grow = growthFactor;
}
public void add(long value) {
if (pos == array.length) {
array = Arrays.copyOf(array, (int) (array.length * grow));
}
array[pos++] = value;
}
@Nonnull
public LongBuffer toBuffer() {
return LongBuffer.wrap(array, 0, pos);
}
public long[] toArray() {
return Arrays.copyOf(array, pos);
}
}