net.anwiba.commons.utilities.ComparableUtilities Maven / Gradle / Ivy

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/*
 * #%L
 * anwiba commons core
 * %%
 * Copyright (C) 2007 - 2016 Andreas Bartels
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 2.1 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */
package net.anwiba.commons.utilities;

public class ComparableUtilities {

  @SuppressWarnings({ "unchecked", "rawtypes" })
  public static boolean isGreaterEquals(final Comparable a, final Comparable b) {
    if (a == null && b == null) {
      return true;
    }
    if (a == null) {
      return false;
    }
    return a.compareTo(b) >= 0;
  }

  @SuppressWarnings({ "unchecked", "rawtypes" })
  public static boolean isGreaterThan(final Comparable a, final Comparable b) {
    if (a == null) {
      return false;
    }
    return a.compareTo(b) > 0;
  }

  @SuppressWarnings({ "unchecked", "rawtypes" })
  public static boolean isLowerThan(final Comparable a, final Comparable b) {
    if (a == null) {
      return true;
    }
    return a.compareTo(b) < 0;
  }

  @SuppressWarnings({ "unchecked", "rawtypes" })
  public static boolean isLowerEquals(final Comparable a, final Comparable b) {
    if (a == null && b == null) {
      return true;
    }
    if (a == null) {
      return true;
    }
    return a.compareTo(b) <= 0;
  }
}