/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.foundationdb.sql.optimizer.rule.range;
enum ComparisonResult {
LT("<"),
LT_BARELY("~<"),
GT(">"),
GT_BARELY("~>"),
EQ("=="),
INVALID("??")
;
public ComparisonResult normalize() {
switch (this) {
case LT_BARELY: return LT;
case GT_BARELY: return GT;
default: return this;
}
}
public String describe() {
return description;
}
private ComparisonResult(String description) {
this.description = description;
}
private final String description;
}