com.hazelcast.org.apache.calcite.schema.Path Maven / Gradle / Ivy
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* 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
*
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package com.hazelcast.org.apache.calcite.schema;
import com.hazelcast.org.apache.calcite.util.Pair;
import java.util.List;
import java.util.RandomAccess;
/**
* Path from a root schema to a particular object (schema, table, function).
*
* Examples:
*
* - The root schema has a single element [(root, "")].
*
- A direct child "foo" of the root schema has a two elements
* [(root, ""), (child, "foo")].
*
*/
public interface Path extends List>, RandomAccess {
/** Returns the parent path, or null if the path is empty. */
Path parent();
/** Returns the names of this path, not including the name of the root. */
List names();
/** Returns the schemas of this path. */
List schemas();
}