/*
 * 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 org.apache.drill.exec.physical.resultSet.project;

public abstract class BaseRequestedColumn implements RequestedColumn {

  private final RequestedTuple parent;
  private final String name;

  public BaseRequestedColumn(RequestedTuple parent, String name) {
    this.parent = parent;
    this.name = name;
  }

  public boolean isRoot() { return parent == null; }

  @Override
  public String name() { return name; }

  @Override
  public String fullName() {
    final StringBuilder buf = new StringBuilder();
    buildName(buf);
    return buf.toString();
  }

  protected void buildName(StringBuilder buf) {
    parent.buildName(buf);
    buf.append('`')
       .append(name)
       .append('`');
  }

  @Override
  public boolean nameEquals(String target) {
    return name.equalsIgnoreCase(target);
  }
}
