com.hazelcast.org.apache.calcite.rex.RexVariable Maven / Gradle / Ivy
/*
* 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,
* 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 com.hazelcast.org.apache.calcite.rex;
import com.hazelcast.org.apache.calcite.rel.type.RelDataType;
import java.util.Objects;
/**
* A row-expression which references a field.
*/
public abstract class RexVariable extends RexNode {
//~ Instance fields --------------------------------------------------------
protected final String name;
protected final RelDataType type;
//~ Constructors -----------------------------------------------------------
protected RexVariable(
String name,
RelDataType type) {
this.name = Objects.requireNonNull(name);
this.digest = Objects.requireNonNull(name);
this.type = Objects.requireNonNull(type);
}
//~ Methods ----------------------------------------------------------------
public RelDataType getType() {
return type;
}
/**
* Returns the name of this variable.
*/
public String getName() {
return name;
}
}