diff options
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/data/WrappedOption.java')
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/data/WrappedOption.java | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/WrappedOption.java b/BJC-Utils2/src/main/java/bjc/utils/data/WrappedOption.java deleted file mode 100644 index 554eb54..0000000 --- a/BJC-Utils2/src/main/java/bjc/utils/data/WrappedOption.java +++ /dev/null @@ -1,80 +0,0 @@ -package bjc.utils.data; - -import java.util.function.Function; -import java.util.function.UnaryOperator; - -class WrappedOption<ContainedType> implements IHolder<ContainedType> { - private IHolder<IHolder<ContainedType>> held; - - public WrappedOption(IHolder<ContainedType> seedValue) { - held = new Option<>(seedValue); - } - - private WrappedOption(IHolder<IHolder<ContainedType>> toHold, boolean dummy) { - held = toHold; - } - - @Override public <BoundType> IHolder<BoundType> bind(Function<ContainedType, IHolder<BoundType>> binder) { - IHolder<IHolder<BoundType>> newHolder = held.map((containedHolder) -> { - return containedHolder.bind((containedValue) -> { - if (containedValue == null) { - return new Option<>(null); - } - - return binder.apply(containedValue); - }); - }); - - return new WrappedOption<>(newHolder, false); - } - - @Override - public <NewType> Function<ContainedType, IHolder<NewType>> lift(Function<ContainedType, NewType> func) { - return (val) -> { - return new Option<>(func.apply(val)); - }; - } - - @Override - public <MappedType> IHolder<MappedType> map(Function<ContainedType, MappedType> mapper) { - IHolder<IHolder<MappedType>> newHolder = held.map((containedHolder) -> { - return containedHolder.map((containedValue) -> { - if (containedValue == null) { - return null; - } - - return mapper.apply(containedValue); - }); - }); - - return new WrappedOption<>(newHolder, false); - } - - @Override - public IHolder<ContainedType> transform(UnaryOperator<ContainedType> transformer) { - held.transform((containedHolder) -> { - return containedHolder.transform((containedValue) -> { - if (containedValue == null) { - return null; - } - - return transformer.apply(containedValue); - }); - }); - - return this; - } - - @Override - public <UnwrappedType> UnwrappedType unwrap(Function<ContainedType, UnwrappedType> unwrapper) { - return held.unwrap((containedHolder) -> { - return containedHolder.unwrap((containedValue) -> { - if (containedValue == null) { - return null; - } - - return unwrapper.apply(containedValue); - }); - }); - } -} |
