org.apache.hudi.expression.ExpressionVisitor Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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,
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* See the License for the specific language governing permissions and
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*/
package org.apache.hudi.expression;
/**
* Visitor used to travers the expression.
*/
public interface ExpressionVisitor {
T alwaysTrue();
T alwaysFalse();
T visitLiteral(Literal literal);
T visitNameReference(NameReference attribute);
T visitBoundReference(BoundReference boundReference);
T visitAnd(Predicates.And and);
T visitOr(Predicates.Or or);
T visitPredicate(Predicate predicate);
}