/*
* ToroDB
* Copyright © 2014 8Kdata Technology (www.8kdata.com)
*
* 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.torodb.kvdocument.types;
/**
*
*/
public class NullType implements KvType {
private static final long serialVersionUID = 1L;
public static final NullType INSTANCE = new NullType();
private NullType() {
}
@Override
public boolean equals(Object o) {
return o != null && o.getClass().equals(this.getClass());
}
@Override
public int hashCode() {
int hash = 23;
return hash;
}
@Override
public <R, A> R accept(KvTypeVisitor<R, A> visitor, A arg) {
return visitor.visit(this, arg);
}
}