| /* |
| * Copyright 2009-2013 by The Regents of the University of California |
| * 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 from |
| * |
| * 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 edu.uci.ics.hyracks.data.std.primitive; |
| |
| import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits; |
| import edu.uci.ics.hyracks.data.std.api.AbstractPointable; |
| import edu.uci.ics.hyracks.data.std.api.IComparable; |
| import edu.uci.ics.hyracks.data.std.api.IHashable; |
| import edu.uci.ics.hyracks.data.std.api.INumeric; |
| import edu.uci.ics.hyracks.data.std.api.IPointable; |
| import edu.uci.ics.hyracks.data.std.api.IPointableFactory; |
| |
| public final class IntegerPointable extends AbstractPointable implements IHashable, IComparable, INumeric { |
| public static final ITypeTraits TYPE_TRAITS = new ITypeTraits() { |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public boolean isFixedLength() { |
| return true; |
| } |
| |
| @Override |
| public int getFixedLength() { |
| return 4; |
| } |
| }; |
| |
| public static final IPointableFactory FACTORY = new IPointableFactory() { |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public IPointable createPointable() { |
| return new IntegerPointable(); |
| } |
| |
| @Override |
| public ITypeTraits getTypeTraits() { |
| return TYPE_TRAITS; |
| } |
| }; |
| |
| public static int getInteger(byte[] bytes, int start) { |
| return ((bytes[start] & 0xff) << 24) + ((bytes[start + 1] & 0xff) << 16) + ((bytes[start + 2] & 0xff) << 8) |
| + ((bytes[start + 3] & 0xff) << 0); |
| } |
| |
| public static void setInteger(byte[] bytes, int start, int value) { |
| bytes[start] = (byte) ((value >>> 24) & 0xFF); |
| bytes[start + 1] = (byte) ((value >>> 16) & 0xFF); |
| bytes[start + 2] = (byte) ((value >>> 8) & 0xFF); |
| bytes[start + 3] = (byte) ((value >>> 0) & 0xFF); |
| } |
| |
| public int getInteger() { |
| return getInteger(bytes, start); |
| } |
| |
| public void setInteger(int value) { |
| setInteger(bytes, start, value); |
| } |
| |
| public int preIncrement() { |
| int v = getInteger(); |
| ++v; |
| setInteger(v); |
| return v; |
| } |
| |
| public int postIncrement() { |
| int v = getInteger(); |
| int ov = v++; |
| setInteger(v); |
| return ov; |
| } |
| |
| @Override |
| public int compareTo(IPointable pointer) { |
| return compareTo(pointer.getByteArray(), pointer.getStartOffset(), pointer.getLength()); |
| } |
| |
| @Override |
| public int compareTo(byte[] bytes, int start, int length) { |
| int v = getInteger(); |
| int ov = getInteger(bytes, start); |
| return v < ov ? -1 : (v > ov ? 1 : 0); |
| } |
| |
| @Override |
| public int hash() { |
| return getInteger(); |
| } |
| |
| @Override |
| public byte byteValue() { |
| return (byte) getInteger(); |
| } |
| |
| @Override |
| public short shortValue() { |
| return (short) getInteger(); |
| } |
| |
| @Override |
| public int intValue() { |
| return getInteger(); |
| } |
| |
| @Override |
| public long longValue() { |
| return getInteger(); |
| } |
| |
| @Override |
| public float floatValue() { |
| return getInteger(); |
| } |
| |
| @Override |
| public double doubleValue() { |
| return getInteger(); |
| } |
| } |