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/*
 *      Copyright (C) 2012-2015 DataStax 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.datastax.driver.extras.codecs.arrays;

import com.datastax.driver.core.DataType;
import com.datastax.driver.core.ProtocolVersion;

import java.nio.ByteBuffer;

/**
 * A codec that maps the CQL type {@code list} to the Java type {@code long[]}.
 * 

* Note that this codec is designed for performance and converts CQL lists * directly to {@code long[]}, thus avoiding any unnecessary * boxing and unboxing of Java primitive {@code long} values; * it also instantiates arrays without the need for an intermediary * Java {@code List} object. */ public class LongArrayCodec extends AbstractPrimitiveArrayCodec { public static final LongArrayCodec instance = new LongArrayCodec(); public LongArrayCodec() { super(DataType.list(DataType.bigint()), long[].class); } @Override protected int sizeOfComponentType() { return 8; } @Override protected void serializeElement(ByteBuffer output, long[] array, int index, ProtocolVersion protocolVersion) { output.putLong(array[index]); } @Override protected void deserializeElement(ByteBuffer input, long[] array, int index, ProtocolVersion protocolVersion) { array[index] = input.getLong(); } @Override protected void formatElement(StringBuilder output, long[] array, int index) { output.append(array[index]); } @Override protected void parseElement(String input, long[] array, int index) { array[index] = Long.parseLong(input); } @Override protected long[] newInstance(int size) { return new long[size]; } }





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