From c82e3b3b2de0633317ec8fc85925e91422820597 Mon Sep 17 00:00:00 2001 From: "Benjamin J. Culkin" Date: Sun, 8 Oct 2017 22:39:59 -0300 Subject: Start splitting into maven modules --- BJC-Utils2/src/main/java/bjc/utils/data/Pair.java | 135 ---------------------- 1 file changed, 135 deletions(-) delete mode 100644 BJC-Utils2/src/main/java/bjc/utils/data/Pair.java (limited to 'BJC-Utils2/src/main/java/bjc/utils/data/Pair.java') diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/Pair.java b/BJC-Utils2/src/main/java/bjc/utils/data/Pair.java deleted file mode 100644 index e6796ba..0000000 --- a/BJC-Utils2/src/main/java/bjc/utils/data/Pair.java +++ /dev/null @@ -1,135 +0,0 @@ -package bjc.utils.data; - -import java.util.function.BiFunction; -import java.util.function.Function; - -/** - * A pair of values, with nothing special about them. - * - * @author ben - * - * @param - * The type of the left value - * @param - * The type of the right value - */ -public class Pair implements IPair { - // The left value - private LeftType leftValue; - - // The right value - private RightType rightValue; - - /** - * Create a new pair with both sides set to null - */ - public Pair() { - - } - - /** - * Create a new pair with both sides set to the specified values - * - * @param left - * The value of the left side - * @param right - * The value of the right side - */ - public Pair(final LeftType left, final RightType right) { - leftValue = left; - rightValue = right; - } - - @Override - public IPair bind( - final BiFunction> binder) { - if (binder == null) throw new NullPointerException("Binder must not be null."); - - return binder.apply(leftValue, rightValue); - } - - @Override - public IPair bindLeft( - final Function> leftBinder) { - if (leftBinder == null) throw new NullPointerException("Binder must not be null"); - - return leftBinder.apply(leftValue); - } - - @Override - public IPair bindRight( - final Function> rightBinder) { - if (rightBinder == null) throw new NullPointerException("Binder must not be null"); - - return rightBinder.apply(rightValue); - } - - @Override - public IPair combine( - final IPair otherPair, - final BiFunction leftCombiner, - final BiFunction rightCombiner) { - return otherPair.bind((otherLeft, otherRight) -> { - final CombinedLeft left = leftCombiner.apply(leftValue, otherLeft); - final CombinedRight right = rightCombiner.apply(rightValue, otherRight); - - return new Pair<>(left, right); - }); - } - - @Override - public IPair mapLeft(final Function mapper) { - if (mapper == null) throw new NullPointerException("Mapper must not be null"); - - return new Pair<>(mapper.apply(leftValue), rightValue); - } - - @Override - public IPair mapRight(final Function mapper) { - if (mapper == null) throw new NullPointerException("Mapper must not be null"); - - return new Pair<>(leftValue, mapper.apply(rightValue)); - } - - @Override - public MergedType merge(final BiFunction merger) { - if (merger == null) throw new NullPointerException("Merger must not be null"); - - return merger.apply(leftValue, rightValue); - } - - @Override - public String toString() { - return String.format("Pair [leftValue='%s', rightValue='%s']", leftValue, rightValue); - } - - @Override - public int hashCode() { - final int prime = 31; - int result = 1; - - result = prime * result + (leftValue == null ? 0 : leftValue.hashCode()); - result = prime * result + (rightValue == null ? 0 : rightValue.hashCode()); - - return result; - } - - @Override - public boolean equals(final Object obj) { - if (this == obj) return true; - if (obj == null) return false; - if (!(obj instanceof Pair)) return false; - - final Pair other = (Pair) obj; - - if (leftValue == null) { - if (other.leftValue != null) return false; - } else if (!leftValue.equals(other.leftValue)) return false; - - if (rightValue == null) { - if (other.rightValue != null) return false; - } else if (!rightValue.equals(other.rightValue)) return false; - - return true; - } -} -- cgit v1.2.3