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'jdbacl' stands for 'Java DataBase ACcess Layer' and provides utilities for accessing JDBC databases from Java programs, retrieving meta information in an object model and querying database data. 'rapiddweller jdbacl' is forked from Databene jdbacl by Volker Bergmann.

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/*
 * (c) Copyright 2010-2014 by Volker Bergmann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted under the terms of the
 * GNU General Public License (GPL).
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package com.rapiddweller.jdbacl.model;

import com.rapiddweller.common.TreeModel;

/**
 * {@link TreeModel} adapter for the hierarchy formed by the Composite pattern of
 * {@link DBObject} and {@link CompositeDBObject}.


 * Created: 10.11.2010 10:17:14
 *
 * @author Volker Bergmann
 * @since 0.6.4
 */
public class DBTreeModel implements TreeModel {

  /**
   * The Root.
   */
  final CompositeDBObject root;

  /**
   * Instantiates a new Db tree model.
   *
   * @param root the root
   */
  public DBTreeModel(CompositeDBObject root) {
    this.root = root;
  }

  @Override
  public DBObject getRoot() {
    return root;
  }

  @Override
  public DBObject getParent(DBObject child) {
    return child.getOwner();
  }

  @Override
  public boolean isLeaf(DBObject node) {
    return !(node instanceof CompositeDBObject);
  }

  @Override
  public int getChildCount(DBObject parent) {
    return ((CompositeDBObject) parent).getComponents().size();
  }

  @Override
  public DBObject getChild(DBObject parent, int index) {
    return ((CompositeDBObject) parent).getComponents().get(index);
  }

  @Override
  public int getIndexOfChild(DBObject parent, DBObject child) {
    return ((CompositeDBObject) parent).getComponents().indexOf(child);
  }

}