/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2000, 2015 Oracle and/or its affiliates. All rights reserved.
*
*/
package com.sleepycat.bind.tuple;
import java.math.BigDecimal;
import com.sleepycat.db.DatabaseEntry;
/**
* A concrete <code>TupleBinding</code> for a sorted <code>BigDecimal</code>
* value.
*
* <p>There are two ways to use this class:</p>
* <ol>
* <li>When using the {@link com.sleepycat.db} package directly, the static
* methods in this class can be used to convert between primitive values and
* {@link DatabaseEntry} objects.</li>
* <li>When using the {@link com.sleepycat.collections} package, an instance of
* this class can be used with any stored collection.</li>
* </ol>
*
* @see <a href="package-summary.html#bigDecimalFormats">BigDecimal Formats</a>
*/
public class SortedBigDecimalBinding extends TupleBinding<BigDecimal> {
// javadoc is inherited
public BigDecimal entryToObject(TupleInput input) {
return input.readSortedBigDecimal();
}
// javadoc is inherited
public void objectToEntry(BigDecimal object, TupleOutput output) {
output.writeSortedBigDecimal(object);
}
// javadoc is inherited
protected TupleOutput getTupleOutput(BigDecimal object) {
return sizedOutput(object);
}
/**
* Converts an entry buffer into a <code>BigDecimal</code> value.
*
* @param entry is the source entry buffer.
*
* @return the resulting value.
*/
public static BigDecimal entryToBigDecimal(DatabaseEntry entry) {
return entryToInput(entry).readSortedBigDecimal();
}
/**
* Converts a <code>BigDecimal</code> value into an entry buffer.
*
* @param val is the source value.
*
* @param entry is the destination entry buffer.
*/
public static void bigDecimalToEntry(BigDecimal val, DatabaseEntry entry) {
outputToEntry(sizedOutput(val).writeSortedBigDecimal(val), entry);
}
/**
* Returns a tuple output object of the maximum size needed, to avoid
* wasting space when a single primitive is output.
*/
private static TupleOutput sizedOutput(BigDecimal val) {
int len = TupleOutput.getSortedBigDecimalMaxByteLength(val);
return new TupleOutput(new byte[len]);
}
}