Android Open Source - DKO Tuple

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Back to project page DKO.

License

The source code is released under:

GNU Lesser General Public License

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Java Source Code

package org.kered.dko;
//  w  ww .  j  a v a 2s  .  com
class Tuple {

  static class Tuple2<S1, S2> {

    public final S1 a;
    public final S2 b;

    public Tuple2(final S1 a, final S2 b) {
      this.a = a;
      this.b = b;
    }

    @Override
    public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + ((a == null) ? 0 : a.hashCode());
      result = prime * result + ((b == null) ? 0 : b.hashCode());
      return result;
    }

    @Override
    public String toString() {
      return "Tuple [a=" + a + ", b=" + b + "]";
    }

    @Override
    public boolean equals(final Object obj) {
      if (this == obj)
        return true;
      if (obj == null)
        return false;
      if (getClass() != obj.getClass())
        return false;
      @SuppressWarnings("rawtypes")
      final
      Tuple2 other = (Tuple2) obj;
      if (a == null) {
        if (other.a != null)
          return false;
      } else if (!a.equals(other.a))
        return false;
      if (b == null) {
        if (other.b != null)
          return false;
      } else if (!b.equals(other.b))
        return false;
      return true;
    }

  }

  static class Tuple3<S1, S2, S3> {

    public final S1 a;
    public final S2 b;
    public final S3 c;

    public Tuple3(final S1 a, final S2 b, final S3 c) {
      this.a = a;
      this.b = b;
      this.c = c;
    }

    @Override
    public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + ((a == null) ? 0 : a.hashCode());
      result = prime * result + ((b == null) ? 0 : b.hashCode());
      result = prime * result + ((c == null) ? 0 : c.hashCode());
      return result;
    }

    @Override
    public boolean equals(final Object obj) {
      if (this == obj)
        return true;
      if (obj == null)
        return false;
      if (getClass() != obj.getClass())
        return false;
      @SuppressWarnings("rawtypes")
      final
      Tuple3 other = (Tuple3) obj;
      if (a == null) {
        if (other.a != null)
          return false;
      } else if (!a.equals(other.a))
        return false;
      if (b == null) {
        if (other.b != null)
          return false;
      } else if (!b.equals(other.b))
        return false;
      if (c == null) {
        if (other.c != null)
          return false;
      } else if (!c.equals(other.c))
        return false;
      return true;
    }

    @Override
    public String toString() {
      return "Tuple [a=" + a + ", b=" + b + ", c=" + c + "]";
    }

  }

}

Java Source Code List