io.prestosql.sql.tree.Expression 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.prestosql.sql.tree;
import io.prestosql.sql.ExpressionFormatter;
import java.util.Optional;
public abstract class Expression
extends Node
{
protected Expression(Optional location)
{
super(location);
}
/**
* Accessible for {@link AstVisitor}, use {@link AstVisitor#process(Node, Object)} instead.
*/
@Override
protected R accept(AstVisitor visitor, C context)
{
return visitor.visitExpression(this, context);
}
@Override
public final String toString()
{
return ExpressionFormatter.formatExpression(this, Optional.empty()); // This will not replace parameters, but we don't have access to them here
}
}