com.hazelcast.org.apache.calcite.materialize.Path 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.materialize;
import com.hazelcast.com.google.common.collect.ImmutableList;
import java.util.List;
/** A sequence of {@link Step}s from a root node (fact table) to another node
* (dimension table), possibly via intermediate dimension tables. */
class Path {
final List steps;
private final int id;
Path(List steps, int id) {
this.steps = ImmutableList.copyOf(steps);
this.id = id;
}
@Override public int hashCode() {
return id;
}
@Override public boolean equals(Object obj) {
return this == obj
|| obj instanceof Path
&& id == ((Path) obj).id;
}
}