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 | 24 |
1 files changed, 13 insertions, 11 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 d688e5b..e0b39cc 100644 --- a/BJC-Utils2/src/main/java/bjc/utils/data/LazyPair.java +++ b/BJC-Utils2/src/main/java/bjc/utils/data/LazyPair.java @@ -13,6 +13,9 @@ import java.util.function.Supplier; * The type on the left side of the pair * @param <RightType> * The type on the right side of the pair + * + * @TODO ensure we don't have any issues with values being materialized + * more than once */ public class LazyPair<LeftType, RightType> implements IPair<LeftType, RightType> { @@ -115,8 +118,8 @@ public class LazyPair<LeftType, RightType> } @Override - public <MergedType> MergedType - merge(BiFunction<LeftType, RightType, MergedType> merger) { + public <MergedType> MergedType merge( + BiFunction<LeftType, RightType, MergedType> merger) { if (!leftMaterialized) { leftValue = leftSupplier.get(); @@ -156,8 +159,8 @@ public class LazyPair<LeftType, RightType> } @Override - public <NewLeft> IPair<NewLeft, RightType> - mapLeft(Function<LeftType, NewLeft> mapper) { + public <NewLeft> IPair<NewLeft, RightType> mapLeft( + Function<LeftType, NewLeft> mapper) { Supplier<NewLeft> leftSupp = () -> { if (leftMaterialized) { return mapper.apply(leftValue); @@ -178,8 +181,8 @@ public class LazyPair<LeftType, RightType> } @Override - public <NewRight> IPair<LeftType, NewRight> - mapRight(Function<RightType, NewRight> mapper) { + public <NewRight> IPair<LeftType, NewRight> mapRight( + Function<RightType, NewRight> mapper) { Supplier<LeftType> leftSupp = () -> { if (leftMaterialized) { return leftValue; @@ -200,11 +203,10 @@ 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) { + 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<>( |