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Java implementation of the structural document language (Core types)

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/*
 * Copyright © 2014  http://io7m.com
 * 
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

package com.io7m.jstructural.core;

import com.io7m.jnull.NullCheck;
import com.io7m.jnull.Nullable;

/**
 * A table column name.
 */

public final class STableColumnName
{
  /**
   * Construct a new table column name.
   * 
   * @param text
   *          The column name
   * @return A new table column name
   */

  public static STableColumnName tableColumnName(
    final String text)
  {
    return new STableColumnName(text);
  }

  private final String text;

  private STableColumnName(
    final String in_text)
  {
    this.text = NullCheck.notNull(in_text, "Text");
  }

  @Override public boolean equals(
    final @Nullable Object obj)
  {
    if (this == obj) {
      return true;
    }
    if (obj == null) {
      return false;
    }
    if (this.getClass() != obj.getClass()) {
      return false;
    }
    final STableColumnName other = (STableColumnName) obj;
    return this.text.equals(other.text);
  }

  /**
   * @return The column name
   */

  public String getText()
  {
    return this.text;
  }

  @Override public int hashCode()
  {
    return this.text.hashCode();
  }
}