diff options
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/data/LazyPair.java')
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/data/LazyPair.java | 104 |
1 files changed, 52 insertions, 52 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/LazyPair.java b/BJC-Utils2/src/main/java/bjc/utils/data/LazyPair.java index 490c4fc..df4c3ac 100644 --- a/BJC-Utils2/src/main/java/bjc/utils/data/LazyPair.java +++ b/BJC-Utils2/src/main/java/bjc/utils/data/LazyPair.java @@ -96,6 +96,20 @@ public class LazyPair<LeftType, RightType> } @Override + public <OtherLeft, OtherRight, CombinedLeft, CombinedRight> IPair<CombinedLeft, CombinedRight> combine( + IPair<OtherLeft, OtherRight> otherPair, + BiFunction<LeftType, OtherLeft, CombinedLeft> leftCombiner, + BiFunction<RightType, OtherRight, CombinedRight> rightCombiner) { + return otherPair.bind((otherLeft, otherRight) -> { + return bind((leftVal, rightVal) -> { + return new LazyPair<>( + leftCombiner.apply(leftVal, otherLeft), + rightCombiner.apply(rightVal, otherRight)); + }); + }); + } + + @Override public LeftType getLeft() { if (!leftMaterialized) { leftValue = leftSupplier.get(); @@ -118,47 +132,6 @@ public class LazyPair<LeftType, RightType> } @Override - public <MergedType> MergedType merge( - BiFunction<LeftType, RightType, MergedType> merger) { - if (!leftMaterialized) { - leftValue = leftSupplier.get(); - - leftMaterialized = true; - } - - if (!rightMaterialized) { - rightValue = rightSupplier.get(); - - rightMaterialized = true; - } - - return merger.apply(leftValue, rightValue); - } - - @Override - public String toString() { - StringBuilder sb = new StringBuilder("pair[l="); - - if (leftMaterialized) { - sb.append(leftValue.toString()); - } else { - sb.append("(un-materialized)"); - } - - sb.append(", r="); - - if (rightMaterialized) { - sb.append(rightValue.toString()); - } else { - sb.append("(un-materialized)"); - } - - sb.append("]"); - - return sb.toString(); - } - - @Override public <NewLeft> IPair<NewLeft, RightType> mapLeft( Function<LeftType, NewLeft> mapper) { Supplier<NewLeft> leftSupp = () -> { @@ -203,16 +176,43 @@ public class LazyPair<LeftType, RightType> } @Override - public <OtherLeft, OtherRight, CombinedLeft, CombinedRight> IPair<CombinedLeft, CombinedRight> combine( - IPair<OtherLeft, OtherRight> otherPair, - BiFunction<LeftType, OtherLeft, CombinedLeft> leftCombiner, - BiFunction<RightType, OtherRight, CombinedRight> rightCombiner) { - return otherPair.bind((otherLeft, otherRight) -> { - return bind((leftVal, rightVal) -> { - return new LazyPair<>( - leftCombiner.apply(leftVal, otherLeft), - rightCombiner.apply(rightVal, otherRight)); - }); - }); + public <MergedType> MergedType merge( + BiFunction<LeftType, RightType, MergedType> merger) { + if (!leftMaterialized) { + leftValue = leftSupplier.get(); + + leftMaterialized = true; + } + + if (!rightMaterialized) { + rightValue = rightSupplier.get(); + + rightMaterialized = true; + } + + return merger.apply(leftValue, rightValue); + } + + @Override + public String toString() { + StringBuilder sb = new StringBuilder("pair[l="); + + if (leftMaterialized) { + sb.append(leftValue.toString()); + } else { + sb.append("(un-materialized)"); + } + + sb.append(", r="); + + if (rightMaterialized) { + sb.append(rightValue.toString()); + } else { + sb.append("(un-materialized)"); + } + + sb.append("]"); + + return sb.toString(); } } |