| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.tajo.datum; |
| |
| import com.google.gson.annotations.Expose; |
| import org.apache.tajo.common.TajoDataTypes; |
| import org.apache.tajo.exception.InvalidOperationException; |
| import org.apache.tajo.util.NumberUtil; |
| |
| public class BitDatum extends Datum { |
| private static final int size = 1; |
| @Expose final byte val; |
| |
| public BitDatum(byte val) { |
| super(TajoDataTypes.Type.BIT); |
| this.val = val; |
| } |
| |
| public BitDatum(byte[] bytes) { |
| this(bytes[0]); |
| } |
| |
| @Override |
| public char asChar() { |
| return (char)val; |
| } |
| |
| @Override |
| public int asInt4() { |
| return val; |
| } |
| |
| @Override |
| public long asInt8() { |
| return val; |
| } |
| |
| @Override |
| public byte asByte() { |
| return val; |
| } |
| |
| @Override |
| public byte[] asByteArray() { |
| byte [] bytes = new byte[1]; |
| bytes[0] = this.val; |
| return bytes; |
| } |
| |
| @Override |
| public float asFloat4() { |
| return val; |
| } |
| |
| @Override |
| public double asFloat8() { |
| return val; |
| } |
| |
| @Override |
| public String asChars() { |
| return "0x"+val; |
| } |
| |
| @Override |
| public byte[] asTextBytes() { |
| return NumberUtil.toAsciiBytes(asInt4()); |
| } |
| |
| @Override |
| public int size() { |
| return size; |
| } |
| |
| @Override |
| public int hashCode() { |
| return val; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof BitDatum) { |
| BitDatum other = (BitDatum) obj; |
| return val == other.val; |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public Datum equalsTo(Datum datum) { |
| switch (datum.type()) { |
| case BIT: |
| return DatumFactory.createBool(this.val == (((BitDatum) datum).val)); |
| case NULL_TYPE: |
| return datum; |
| default: |
| throw new InvalidOperationException(datum.type()); |
| } |
| } |
| |
| @Override |
| public int compareTo(Datum datum) { |
| switch (datum.type()) { |
| case BIT: |
| if (val < datum.asByte() ) { |
| return -1; |
| } else if (val > datum.asByte()) { |
| return 1; |
| } else { |
| return 0; |
| } |
| case NULL_TYPE: |
| return -1; |
| default: |
| throw new InvalidOperationException(datum.type()); |
| } |
| } |
| } |