io.trino.sql.planner.rowpattern.ir.IrEmpty Maven / Gradle / Ivy
/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.trino.sql.planner.rowpattern.ir;
import com.fasterxml.jackson.annotation.JsonCreator;
public class IrEmpty
extends IrRowPattern
{
@JsonCreator
public IrEmpty() {}
@Override
public R accept(IrRowPatternVisitor visitor, C context)
{
return visitor.visitIrEmpty(this, context);
}
@Override
public boolean equals(Object obj)
{
if (this == obj) {
return true;
}
if ((obj == null) || (getClass() != obj.getClass())) {
return false;
}
return true;
}
@Override
public int hashCode()
{
return getClass().hashCode();
}
@Override
public String toString()
{
return "()";
}
}