| /* |
| * Copyright 2009-2010 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 FloatPointable 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 FloatPointable(); |
| } |
| |
| @Override |
| public ITypeTraits getTypeTraits() { |
| return TYPE_TRAITS; |
| } |
| }; |
| |
| private static int getIntBits(byte[] bytes, int start) { |
| return IntegerPointable.getInteger(bytes, start); |
| } |
| |
| public static float getFloat(byte[] bytes, int start) { |
| int bits = getIntBits(bytes, start); |
| return Float.intBitsToFloat(bits); |
| } |
| |
| public static void setFloat(byte[] bytes, int start, float value) { |
| int bits = Float.floatToIntBits(value); |
| IntegerPointable.setInteger(bytes, start, bits); |
| } |
| |
| public float getFloat() { |
| return getFloat(bytes, start); |
| } |
| |
| public void setFloat(float value) { |
| setFloat(bytes, start, value); |
| } |
| |
| public float preIncrement() { |
| float v = getFloat(); |
| ++v; |
| setFloat(v); |
| return v; |
| } |
| |
| public float postIncrement() { |
| float v = getFloat(); |
| float ov = v++; |
| setFloat(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) { |
| float v = getFloat(); |
| float ov = getFloat(bytes, start); |
| return v < ov ? -1 : (v > ov ? 1 : 0); |
| } |
| |
| @Override |
| public int hash() { |
| return getIntBits(bytes, start); |
| } |
| |
| @Override |
| public byte byteValue() { |
| return (byte) getFloat(); |
| } |
| |
| @Override |
| public short shortValue() { |
| return (short) getFloat(); |
| } |
| |
| @Override |
| public int intValue() { |
| return (int) getFloat(); |
| } |
| |
| @Override |
| public long longValue() { |
| return (long) getFloat(); |
| } |
| |
| @Override |
| public float floatValue() { |
| return getFloat(); |
| } |
| |
| @Override |
| public double doubleValue() { |
| return getFloat(); |
| } |
| } |