/* Copyright (c) 2001-2009, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.hsqldb.types;
import org.hsqldb.Error;
import org.hsqldb.ErrorCode;
/**
* Implementation of data item for INTERVAL SECOND.<p>
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 1.9.0
* @since 1.9.0
*/
public class IntervalSecondData {
public final long units;
public final int nanos;
public static IntervalSecondData newIntervalDay(long days,
IntervalType type) {
return new IntervalSecondData(days * 24 * 60 * 60, 0, type);
}
public static IntervalSecondData newIntervalHour(long hours,
IntervalType type) {
return new IntervalSecondData(hours * 60 * 60, 0, type);
}
public static IntervalSecondData newIntervalMinute(long minutes,
IntervalType type) {
return new IntervalSecondData(minutes * 60, 0, type);
}
public static IntervalSecondData newIntervalSeconds(long seconds,
IntervalType type) {
return new IntervalSecondData(seconds, 0, type);
}
public IntervalSecondData(long seconds, int nanos, IntervalType type) {
if (seconds >= type.getIntervalValueLimit()) {
throw Error.error(ErrorCode.X_22015);
}
this.units = seconds;
this.nanos = nanos;
}
public IntervalSecondData(long seconds, int nanos) {
this.units = seconds;
this.nanos = nanos;
}
/**
* normalise is a marker, values are always normalised
*/
public IntervalSecondData(long seconds, long nanos, IntervalType type,
boolean normalise) {
if (nanos >= DTIType.limitNanoseconds) {
long carry = nanos / DTIType.limitNanoseconds;
nanos = nanos % DTIType.limitNanoseconds;
seconds += carry;
} else if (nanos <= -DTIType.limitNanoseconds) {
long carry = -nanos / DTIType.limitNanoseconds;
nanos = -(-nanos % DTIType.limitNanoseconds);
seconds -= carry;
}
int scaleFactor = DTIType.nanoScaleFactors[type.scale];
nanos /= scaleFactor;
nanos *= scaleFactor;
if (seconds > 0 && nanos < 0) {
nanos += DTIType.limitNanoseconds;
seconds--;
} else if (seconds < 0 && nanos > 0) {
nanos -= DTIType.limitNanoseconds;
seconds++;
}
scaleFactor = DTIType.yearToSecondFactors[type.endPartIndex];
seconds /= scaleFactor;
seconds *= scaleFactor;
if (seconds >= type.getIntervalValueLimit()) {
throw Error.error(ErrorCode.X_22015);
}
this.units = seconds;
this.nanos = (int) nanos;
}
public boolean equals(Object other) {
if (other instanceof IntervalSecondData) {
return units == ((IntervalSecondData) other).units
&& nanos == ((IntervalSecondData) other).nanos;
}
return false;
}
public int hashCode() {
return (int) units ^ nanos;
}
public int compareTo(IntervalSecondData b) {
long diff = units - b.units;
if (diff == 0) {
diff = nanos - b.nanos;
if (diff == 0) {
return 0;
}
}
return diff > 0 ? 1
: -1;
}
public long getSeconds() {
return units;
}
public int getNanos() {
return nanos;
}
public String toString() {
throw Error.runtimeError(ErrorCode.U_S0500, "IntervalSecondData");
}
}