/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2000,2008 Oracle. All rights reserved.
*
* $Id: FloatBinding.java,v 12.8 2008/01/08 20:58:36 bostic Exp $
*/
package com.sleepycat.bind.tuple;
import com.sleepycat.db.DatabaseEntry;
/**
* A concrete TupleBinding
for a Float
primitive
* wrapper or a float
primitive.
*
*
Note: This class produces byte array values that by default * (without a custom comparator) do not sort correctly for negative * values. Only non-negative values are sorted correctly by default. To sort * all values correctly by default, use {@link SortedFloatBinding}.
* *There are two ways to use this class:
*float
value.
*
* @param entry is the source entry buffer.
*
* @return the resulting value.
*/
public static float entryToFloat(DatabaseEntry entry) {
return entryToInput(entry).readFloat();
}
/**
* Converts a simple float
value into an entry buffer.
*
* @param val is the source value.
*
* @param entry is the destination entry buffer.
*/
public static void floatToEntry(float val, DatabaseEntry entry) {
outputToEntry(sizedOutput().writeFloat(val), entry);
}
/**
* Returns a tuple output object of the exact size needed, to avoid
* wasting space when a single primitive is output.
*/
static TupleOutput sizedOutput() {
return new TupleOutput(new byte[FLOAT_SIZE]);
}
}