br.com.objectos.comuns.io.ColumnKey Maven / Gradle / Ivy

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/*
 * Copyright 2012 Objectos, Fábrica de Software LTDA.
 *
 * Licensed 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 br.com.objectos.comuns.io;

import java.util.Objects;

/**
 * @author [email protected] (Marcio Endo)
 */
public class ColumnKey {

  private final Class type;

  private final String name;

  public ColumnKey(Class type, String name) {
    this.type = Objects.requireNonNull(type, "type");
    this.name = name;
  }

  public Class getType() {
    return type;
  }

  public static  ColumnKey of(Class type) {
    return new ColumnKey(type, null);
  }

  public static  ColumnKey of(Class type, String name) {
    return new ColumnKey(type, name);
  }

  @Override
  public String toString() {
    return "ColumnKey=" + type.toString() + "=" + name;
  }

  @Override
  public final int hashCode() {
    return Objects.hash(type, name);
  }

  @Override
  public final boolean equals(Object obj) {
    if (obj == this) {
      return true;
    }
    if (obj instanceof ColumnKey) {
      final ColumnKey that = (ColumnKey) obj;
      return Objects.equals(this.type, that.type)
          && Objects.equals(this.name, that.name);
    } else {
      return false;
    }
  }

}