/* Copyright (c) 2001-2016, 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.
Error;
import org.hsqldb.error.
ErrorCode;
/**
* Implementation of data item for INTERVAL MONTH.<p>
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.3.0
* @since 1.9.0
*/
public class
IntervalMonthData {
public final int
units;
public static
IntervalMonthData newInterval(double
value, int
typeCode) {
int
index =
DTIType.
intervalIndexMap.
get(
typeCode);
value *=
DTIType.
yearToSecondFactors[
index];
return new
IntervalMonthData((long)
value);
}
public static
IntervalMonthData newIntervalYear(long
years,
IntervalType type) {
return new
IntervalMonthData(
years * 12,
type);
}
public static
IntervalMonthData newIntervalMonth(long
months,
IntervalType type) {
return new
IntervalMonthData(
months,
type);
}
public
IntervalMonthData(long
months,
IntervalType type) {
if (
months >=
type.
getIntervalValueLimit()) {
throw
Error.
error(
ErrorCode.
X_22006);
}
if (
type.
typeCode ==
Types.
SQL_INTERVAL_YEAR) {
months -= (
months % 12);
}
this.
units = (int)
months;
}
public
IntervalMonthData(long
months) {
this.
units = (int)
months;
}
public boolean
equals(
Object other) {
if (
other instanceof
IntervalMonthData) {
return
units == ((
IntervalMonthData)
other).
units;
}
return false;
}
public int
hashCode() {
return
units;
}
public int
compareTo(
IntervalMonthData b) {
if (
units >
b.
units) {
return 1;
} else if (
units <
b.
units) {
return -1;
} else {
return 0;
}
}
public int
getMonths() {
return
units;
}
public
String toString() {
return
Type.
SQL_INTERVAL_MONTH_MAX_PRECISION.
convertToString(this);
}
}