diff options
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/data/GenHolder.java')
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/data/GenHolder.java | 37 |
1 files changed, 17 insertions, 20 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/GenHolder.java b/BJC-Utils2/src/main/java/bjc/utils/data/GenHolder.java index 390982a..d6266ca 100644 --- a/BJC-Utils2/src/main/java/bjc/utils/data/GenHolder.java +++ b/BJC-Utils2/src/main/java/bjc/utils/data/GenHolder.java @@ -7,12 +7,14 @@ import java.util.function.Function; * references to data, and more specifically for accessing non-final * variables from a lambda. AKA the identity monad * + * This is an eager variant of {@link IHolder} + * * @author ben * * @param <T> * The type of the data being held */ -public class GenHolder<T> { +public class GenHolder<T> implements IHolder<T> { /** * The state this holder is responsible for. */ @@ -36,39 +38,34 @@ public class GenHolder<T> { held = hld; } - /** - * Return the result of applying the given transformation to the held - * value Doesn't change the held value + /* + * (non-Javadoc) * - * @param f - * The transformation to apply - * @return A holder with the transformed value + * @see bjc.utils.data.IHolder#map(java.util.function.Function) */ - public <NewT> GenHolder<NewT> map(Function<T, NewT> f) { + @Override + public <NewT> IHolder<NewT> map(Function<T, NewT> f) { return new GenHolder<NewT>(f.apply(held)); } - /** - * Apply the given transformation to the held value. Returns the holder - * for allowing chaining of transforms + /* + * (non-Javadoc) * - * @param f - * The transform to apply to the value - * @return The holder + * @see bjc.utils.data.IHolder#transform(java.util.function.Function) */ - public GenHolder<T> transform(Function<T, T> f) { + @Override + public IHolder<T> transform(Function<T, T> f) { held = f.apply(held); return this; } - /** - * Returns a raw mapped value, not contained in a GenHolder + /* + * (non-Javadoc) * - * @param f - * The function to use for mapping the value - * @return The mapped value outside of a GenHolder + * @see bjc.utils.data.IHolder#unwrap(java.util.function.Function) */ + @Override public <E> E unwrap(Function<T, E> f) { return f.apply(held); } |
